Best way to resize an image?

.NET Base Class Library

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    - WebService RPC/Encoded when using RPC/Encoded mode in Webservice , the IsNullable=false is ignored in the WSDL file: I have the class (generated from xsd file) that contains the following attributes: /// <remarks/> [System.Xml.Serialization.XmlElementAttribute(IsNullable= false )] public string CorporateName; /// <remarks/> [System.Xml.Serialization.XmlElementAttribute(IsNullable= true )] public string Type; /// <remarks/> [System.Xml.Serialization.XmlElementAttribute(IsNullable= false )] public string ID; When using document/literal webservice , i get this element in the wsdl file. < s:element minOccurs =" 0 " maxOccurs =" 1 " name =" CorporateName " type =" s:string " /> < s:element minOccurs =" 1 " maxOccurs =" 1 " name =" Type " nillable =" true " type =" s:string " /> < s:element minOccurs =" 0 " maxOccurs =" 1 " name =" ID " type =" s:string " /> B BUT when i use RPC/Encoded mode i get all element whith minoccurs=1 and maxoccurs=1 ( IsNullable attribute is ignored ) < s:element minOccurs =" 1 " maxOccurs =" 1 " name =" CorporateName " type =" s:string " /> < s:element minOccurs =" 1 " maxOccurs =" 1 " name =" Type " type =" s:string " /> < s:element minOccurs =" 1 " maxOccurs =" 1 " name =" ID " type =" s:string " /> Windows XP. Visual Studio 2003. framework.net 1.1 .WebService RPC Tag: .NET Base Class Library Best way to resize an image? .NET Development
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    - Passing a Stream to a Web Service Hi, I'm trying to pass a IO.Stream as a parameter to a Web Service but I am coming under a little difficulty. Both the calling application and the Web Service application recognize the IO.Stream object but when I try and call the WebMethod it tells me that it is expecting a WebService_Stream data type instead of an IO.Stream datatype. I've done some research and seen suggestions to "Serialize" data objects- but the examples I have seen have all been for user defined classes on the Web Service side. Is there an easier or better way to do this I'm using 2.0 framework. I've noticed some references in 3.0 to a new way of doing services using the Windows Communication Foundation, would this solve my problem Is it easier to pass objects with this Many thanks in advance. Tag: .NET Base Class Library Best way to resize an image? .NET Development
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    - Why isn't my object garbage collected ? Hi ! What could explain that the instance of 'MyControl' is not garbage collected even though !dumpheap shows that there is no longer any strong reference to it To put this in evidence I inserted a loop calling GC.Collect and a breakpoint at which I'm running !dumpheap. What is even stranger to me is that 'MyControl' gets eventually collected, but later (after exiting Main). This is annoying since 'MyControl' holds unmanaged memory and I'd like to check that I have no unmanaged memory leaks. This very late garbage collection causes inevitably false detections. Chris. ------ static void Main() { Application.EnableVisualStyles(); Application.SetCompatibleTextRenderingDefault(false); Application.Run(new MyFirstForm()); for (int n = 0; n < 100; n++) { GC.Collect(); GC.WaitForPendingFinalizers(); // <- breakpoint here } } DOMAIN(005E1648):HANDLE(WeakLn):a1054:Root:028a620c(System.Windows.Forms.NativeMethods+WndProc)-> 028a6100(System.Windows.Forms.Control+ControlNativeWindow)-> 028a602c(MyNamespace.MyControl)-> 028a5e78(System.Windows.Forms.TableLayoutPanel)-> 028a5f2c(System.Windows.Forms.PropertyStore)-> 028b3798(System.Windows.Forms.PropertyStore+ObjectEntry[])-> 028aaaa4(System.Windows.Forms.Layout.TableLayout+ContainerInfo)-> 028b3724(System.Object[])-> 028aabcc(System.Windows.Forms.Layout.TableLayout+LayoutInfo)-> 028a6344(System.Windows.Forms.TableLayoutPanel)-> 028a63f8(System.Windows.Forms.PropertyStore)-> 028b38ec(System.Windows.Forms.PropertyStore+ObjectEntry[])-> 028aaf08(System.Windows.Forms.Layout.TableLayout+ContainerInfo)-> 028b3850(System.Object[])-> 028ab074(System.Windows.Forms.Layout.TableLayout+LayoutInfo)-> 028a7918(System.Windows.Forms.GroupBox)-> 028a798c(System.Windows.Forms.PropertyStore)-> 028b2d40(System.Windows.Forms.PropertyStore+ObjectEntry[])-> 028aba5c(System.Windows.Forms.Control+ControlCollection)-> 028aba70(System.Collections.ArrayList)-> 028aba88(System.Object[])-> 028a7a28(System.Windows.Forms.TrackBar)-> 028abaa8(System.ComponentModel.EventHandlerList)-> 028abafc(System.ComponentModel.EventHandlerList+ListEntry)-> 028abab8(System.EventHandler)-> 028a5074(MyApp.MySecondForm)-> 02896354(MyApp.MyFirstForm)-> 02898d38(MyNamespace.MyControl) DOMAIN(005E1648):HANDLE(WeakLn):a105c:Root:0289f590(System.Windows.Forms.NativeMethods+WndProc)-> 02899e18(System.Windows.Forms.Control+ControlNativeWindow)-> 02899d48(System.Windows.Forms.Button)-> 0289a960(System.ComponentModel.EventHandlerList)-> 0289b14c(System.ComponentModel.EventHandlerList+ListEntry)-> 0289b12c(System.EventHandler)-> 02896354(MyApp.MyFirstForm) DOMAIN(005E1648):HANDLE(WeakLn):a1060:Root:0289f570(System.Windows.Forms.NativeMethods+WndProc)-> 02899ccc(System.Windows.Forms.Control+ControlNativeWindow)-> 02899bfc(System.Windows.Forms.Button)-> 0289a92c(System.ComponentModel.EventHandlerList)-> 0289b0e0(System.ComponentModel.EventHandlerList+ListEntry)-> 0289b0c0(System.EventHandler)-> 02896354(MyApp.MyFirstForm) DOMAIN(005E1648):HANDLE(WeakLn):a107c:Root:0289f348(System.Windows.Forms.NativeMethods+WndProc)-> 02897e34(System.Windows.Forms.Control+ControlNativeWindow)-> 02897d64(System.Windows.Forms.Button)-> 0289ab04(System.ComponentModel.EventHandlerList)-> 0289acf8(System.ComponentModel.EventHandlerList+ListEntry)-> 0289acd8(System.EventHandler)-> 02896354(MyApp.MyFirstForm) DOMAIN(005E1648):HANDLE(WeakLn):a108c:Root:0289f224(System.Windows.Forms.NativeMethods+WndProc)-> 028979b0(System.Windows.Forms.Control+ControlNativeWindow)-> 028978ec(System.Windows.Forms.TableLayoutPanel)-> 028979a0(System.Windows.Forms.PropertyStore)-> 0289f964(System.Windows.Forms.PropertyStore+ObjectEntry[])-> 0289a844(System.Windows.Forms.Layout.TableLayout+ContainerInfo)-> 0289f8c8(System.Object[])-> 0289a908(System.Windows.Forms.Layout.TableLayout+LayoutInfo)-> 02898d38(MyNamespace.MyControl) DOMAIN(005E1648):HANDLE(WeakLn):a1098:Root:0289c888(System.Windows.Forms.NativeMethods+WndProc)-> 02896554(System.Windows.Forms.Control+ControlNativeWindow)-> 02896354(MyApp.MyFirstForm) DOMAIN(005E1648):HANDLE(WeakLn):a10b4:Root:02899124(System.Windows.Forms.NativeMethods+WndProc)-> 02898e0c(System.Windows.Forms.Control+ControlNativeWindow)-> 02898d38(MyNamespace.MyControl) DOMAIN(005E1648):HANDLE(WeakSh):a129c:Root:02898e0c(System.Windows.Forms.Control+ControlNativeWindow) DOMAIN(005E1648):HANDLE(WeakSh):a12dc:Root:02896554(System.Windows.Forms.Control+ControlNativeWindow) Tag: .NET Base Class Library Best way to resize an image? .NET Development
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    - searching for a stock symbol if I wanted to search for a stock symbol would this be the right way to do it [][A-Z]|[A-Z]|[A-Z]|[A-Z]|[A-Z][] Tag: .NET Base Class Library Best way to resize an image? .NET Development
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    - thread.abort causes "error 2" Hi, I have a application that ataches to an Excel file (using jet 4) and fills a dataset in a background thread. This background thread uses calls a specific dll to handle the connection to the Excel file. If the user clicks 'Cancel' from the main form then the main thread calls thread.abort followed by thread.join. However, just after thread.abort is called a messagebox pops up saying "Error 2" - no other text or title is displayed in the messagebox. I have no idea what is causing this error - i have tried catching the threadabortexception but the messagebox pops up before this exception is caught. I am really stumped by this...any help would be really appreciated. Tag: .NET Base Class Library Best way to resize an image? .NET Development
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    - Access memory error after unmanaged interop in Vista. I have got a Access memeroy error when get a memory be malloced from unmage code to manage code in Vista, but it works well in XP SP2 . My manage code are public partial class Form1 : Form { private void button1_Click( object sender, EventArgs e) { string name = RunInterop .GetStringFromUnmanage(); } } Interop code public static class RunInterop { const string RunDllFileName = "Unmanage.dll" ; [ DllImport (RunDllFileName)] public static extern string GetStringFromUnmanage(); } Unmage code extern "C" { __declspec ( dllexport ) char * __stdcall GetStringFromUnmanage() { char *lpchar = ( char *)malloc(strlen( "test ) + 1); memcpy(lpchar, " test " ,strlen( "test " )); return lpchar; } } There have a crash in the ntdll!RtlpLowFragHeapFree function in Vista, but it works well in Vista. I am sure lots of developers have meet this error, any suggestion I know it is ok if using StringBuilder to get the string from the unmanage code, but I am 0:000> kb ChildEBP RetAddr Args to Child 001ce4d4 770a18c3 001ce814 001ce814 00db25f3 ntdll!RtlpLowFragHeapFree+0x31 001ce4e8 76677a7e 00200000 00000000 04183398 ntdll!RtlFreeHeap+0x101 001ce4fc 7653d5d6 00200000 00000000 041833a0 KERNEL32!HeapFree+0x14 001ce510 7653de31 7660e6fc 041833a0 001ce5f4 ole32!CRetailMalloc_Free+0x1c 001ce520 7a0b425b 041833a0 001ce814 7a0b7ab9 ole32!CoTaskMemFree+0x13 001ce52c 7a0b7ab9 001ce7bc 001ce804 f9131f59 mscorwks!DefaultMarshalOverrides<CSTRMarshalerBase>::ReturnCLRFromNative+0x33 001ce768 79ea35c6 00db25f0 001ce804 001ce7c0 mscorwks!RunML+0x77a 001ce7e8 79ea34ba 00245360 001ce894 00757030 mscorwks!NDirectGenericStubPostCall+0x194 001ce850 00db2647 00245360 001ce894 fca439b0 mscorwks!NDirectGenericStubReturnFromCall+0x1f 001ce87c 00d20303 014a0fb8 0148e8c4 0000004b CLRStub[StubLinkStub]@db2647 001ce8d4 7b0693eb 00000000 00000000 00000000 Manage2Un!Manage2Un.Form1.button1_Click(System.Object, System.EventArgs)+0x33 [D:\Fuhaitao\Manage2Un\Manage2Un\Form1.cs @ 23] 001ce96c 7b1065e9 00000000 00000000 00000000 Tag: .NET Base Class Library Best way to resize an image? .NET Development
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    - prefix for the default namespace Hi! I have a seemingly easy task that got extremely hairy. As an input I have xml files that may or may not define a default namespace. the files look like below: < xml version="1.0" encoding="UTF-8" > <collection xmlns="http://www.loc.gov/MARC21/slim"> <record> <controlfield tag="001">1020311</controlfield> <datafield tag="980" ind1=" " ind2=" "> <subfield code="a">PHOTOLAB</subfield> </datafield> <datafield tag="960" ind1=" " ind2=" "> <subfield code="a">81</subfield> </datafield> ... </record> </collection> I looked at the information on xml namespaces given here: http://sinan.ussakli.net/code/xml-namespaces-on-xpath-queries-and-xslt and tried their hack: resultPage.Load(@"C:\SoftwareProjects\eBulletinSubmission\MultimediaGallery\test.xml"); XPathNavigator navigator = resultPage.CreateNavigator(); XPathNavigator context = navigator.Clone(); context.MoveToFirstChild(); XPathNodeIterator iterator = navigator.Select("//record", context); the only difference in my example is that I do not use a prefix, since I don't have one. The result is that it will never find anything. I tried to run the DocumentNsResolver class from the same link above and got the obvious result that my prefix is "". How can I query for this I tried a whole lot of things, without much success for this simple case. I guess the next thing I am doing is just cut out the namespace from the file, extremely ugly, but it seems to be the only thing that really works... If you have any ideas on this, please let me know. Thanks! Tag: .NET Base Class Library Best way to resize an image? .NET Development
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    - Problem connecting to sql server express edition I have difficulties connecting to my SQL Server Express edition. The Server and its SQL Browser are both running and named pipes are enabled, even if I am not sure why it would return such an error since I only try to connect to my localhost. My connection string is currently: Data Source=localhost\SQLEXPRESS;Integrated Security=True;Pooling=False the initial catalog is not yet set, because I try to use the connection (System.Data.SqlClient.SQLConnection) to create a new database by ddl. The resulting error is: provider: Named Pipes-Provider, error: 40 Connection to SQL-Server could not be established Any suggestion greatly appreciated. Tag: .NET Base Class Library Best way to resize an image? .NET Development
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    - How to Start Building a firewall in c# .net Dear Friends... I am a student of RCPIT,Shirpur at INDIA and want to build a firewall in visual studio c# .net... but where i block is i do not know how to start capturing packets from NET WORK CARD and then how to control the,m.. means i know the flow that,,.. first i have to capture the packets ( but dont know how to do that in c#) and then stop them using some rules ( even dont know how to do this in c #)... and i want a little bit help... mine contact mail id is : jinne_of_hearts@yahoo.com,adi_jinne@yahoo.com So if any one knows how to do that i will be kind to them for helping me out... Thanks,, Tag: .NET Base Class Library Best way to resize an image? .NET Development
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    - dataset filter DataView defaultView = new DataView(); //this table has three fields... defaultView = dsCorrelationsIndices.Tables["CorrelationsIndicesValues"].DefaultView; //one row is returned... defaultView.RowFilter = dsCorrelationsIndices.Tables["CorrelationsIndicesValues"].Columns["Index1Name"].ColumnName + " = '" + strIndex1Name + "' AND " + dsCorrelationsIndices.Tables["CorrelationsIndicesValues"].Columns["Index2Name"].ColumnName + " = '" + strIndex1Name + "'"; I would like to get the value in the third column // string v = how do I get the third value from the filtered dataset Thanks Tag: .NET Base Class Library Best way to resize an image? .NET Development
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    - IFrame not getting Created! Hi, I have an requirement where on a click of a link I need to create an iFrame which directs to a different page which sends a file from the server for download! On click event of the asp:link button, I register the Javascript function which creates a iFrame and appends it to the document's body. But the source mentioned in th iFrame is not getting trigerred at all! //Registering the Javascript Function lnkFilePreview.Attributes.Add("onclick", "DownloadFile('" + dgFileList.ClientID + "'); return false;"); Javascript function //FUNCTION TO DOWNLOAD THE SELECTED FILE function DownloadFile(fileID) { var contr=document.getElementById(fileID); var iframe = document.createElement("iframe"); iframe.setAttribute("src", "FileDownload.aspx fileID=2550"); iframe.setAttribute("id", "previewdownloadFrames"); dcount++; iframe.setAttribute("scrolling", "no"); iframe.setAttribute("frameBorder", "0"); iframe.setAttribute("width", "0"); document.body.appendChild(iframe); return false; } I dont have any clue as to why this is not working! -Amrish Tag: .NET Base Class Library Best way to resize an image? .NET Development
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    - Object reference not set to an instance of an object. Hi. I know there is an easy and logical explenation to my problem, but I cant find it. So: I have a form named Person, with comboBox1 for name, texBox1 for username, textBox2 for password and texBox3 for role. ComboBox1 has a datasource on table Oseba with the same coloumns as above plus IDP (primary key). DisplayMember on comboBox1 is name and ValueMember is IDP. I select the name from comboBox1 and using comboBox1_SelectedValueChanged it fills the rest of the textBoxes with their values. The form actually works good, the problem is, when I close the form. it throws me the "famous": Object reference not set to an instance of an object. Code: private void comboBox1_SelectedValueChanged(object sender, EventArgs e) { ordinacijadbDataSet.PersonRow foundRow= ordinacijadbDataSet.Person.FindByIDP(Convert.ToInt32(comboBox1.SelectedValue)); textBox1.Text = foundRow.Username.ToString(); <----- THE ERROR POINTS HERE textBox2.Text = foundRow.Password.ToString(); textBox3.Text = foundRow.Role.ToString(); } As I said, the form works like it should, until i try to close it. I cant figure out the problem. Plese help Tag: .NET Base Class Library Best way to resize an image? .NET Development
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    - Error 25015 while installing .NET Framework 2.0 Hi there, I try to install .Net Framework 2.0 and encounter this error : Error 25015.Failed to install assembly 'C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Microsoft.VisualBasic.VSA.dll' because of system error: The filename, directory name, or volume label setup syntax is incorrect. Please help! Tag: .NET Base Class Library Best way to resize an image? .NET Development
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    - vc++2005.msi file ( windows installer file) Hi, i need vc++2005 redistributable( windows installer file).if any one know the link .kindly provide to me.please i want to create the VBscript for silent installing softwares for (.netframework2.0,MDAC2.7,VC++,XML4.0).in VBscript exe does not supporting installing software silently.so kindly provide the link.please Thanks, N.senthil Tag: .NET Base Class Library Best way to resize an image? .NET Development
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    - Problems with XML Serializer hi everyone, if have a project of a Car Rent, with serializable XML Roots (CarGroup, Car, .. and therefore fields and methods like GetCar, ...), so the the three looks like: -CarData -CarGroup -Car -CarCategorie In my mainform i have a button for start renting a car, wich include following code fragment: try { CarClass.CarData carDataSave = new CarClass.CarData(); CarClass.Rent rentDataSave = new CarClass.Rent(); foreach (ListViewItem item in listViewAvailableCarsForRent.Items) { CarClass.Car carSource = item.Tag as CarClass.Car; if (carSource != null) { if (carSource.Categorie != null && carSource.Categorie.Length > 0) { for (int i = 0; i< carSource.Categorie.Length; i++) { if (carSource.Categorie .IsAvailabe) { CarClass.CarGroup carGroupSource = item.Group.Tag as CarClass.CarGroup; if (sourceGroup != null) { CarClass.CarGroup carGroupTarget = carDataSave.GetCarGroup(carGroupSource.Id, carGroupSource.Type); CarClass.Car carTarget = carGroupTarget.GetCar(carSource.Id, carSource.Name); CarClass.CarCategorie carCategorie = carTarget.GetCarCategorie(carSource.Categorie .Id, carSource.Categorie .Name); CarClass.Rent rentFile = rentDataSave.GetRentFile(id, day, name, begin, end, insurance); } XmlSerializer rentSerializer = new XmlSerializer(typeof(CarClass.Rent)); System.IO.StreamWriter rentWrite = new System.IO.StreamWriter("RentFile.xml"); rentSerializer.Serialize(rentWrite, rentDataSave); rentWrite.Flush(); rentWrite.Close(); } } } } } catch.... My Problem is that by clicking the button every time only one set of (rent-)data is storing in the "RentFile.xml"-File... What can I do to add a new data set to the old store ones in the xml file every time I press the button.... Please help! Thanks in advance, best regards bg Tag: .NET Base Class Library Best way to resize an image? .NET Development
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    - Web Service noob needs some help Hello I was told that it was a REALLY bad idea to send SQL queries directly over the Internet. That's why I'm here. I'm trying to make a web service to forward SQL queries from a VB.net plugin to my SQL server and return the result, but have little idea of how to attack this. Have been searching the web and have made something that look like it can work as a web service: The simple WebService.asmx file (not made in .Net!) contains the following: Code Snippet <%@ WebService Language="VB" Class="MoodAndStyle" %> Imports System.Web.Services Imports System.Data Imports System.Data.SqlClient Imports System.Configuration Public Class MoodAndStyle Private Function GetDataSet(SQLQuery as String) as DataSet '1. Create a connection Dim SQLconn as New SqlConnection("Data Source=10.0.0.5;Initial Catalog=Mood;User Id=moodDBUser;Password=test;") '2. Create the command object, passing in the SQL string Dim command as New SqlCommand(SQLQuery, SQLconn) SQLconn.Open() '3. Create the DataAdapter Dim dataAdapter as New SqlDataAdapter() dataAdapter.SelectCommand = command '4. Populate the DataSet and close the connection Dim myDataSet as New DataSet() dataAdapter.Fill(myDataSet) SQLconn.Close() 'Return the DataSet Return myDataSet End Function <WebMethod()> Public Function GetArtists() as DataSet Return GetDataSet("SELECT * FROM Artist") End Function End Class I need to return the dataset from the SQL server. I read that I could use a web service proxy, but don't really want to complicate this. I had a hard enough time making the actual plugin in VB.net... Are there anyone that could tell me what kind of stuff I need to make this work For now I would just like to push a button to return the dataset. I know how to extract the data from the dataset. But thats about it. - Carl Tag: .NET Base Class Library Best way to resize an image? .NET Development
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    - how to Un Register the DLL from GAC -- Error All, I tried to unistall the Assembly from GAC .. I got the following Error. C:\WORKSPACE\200928\ALGO\Workspace\FileUpdater\bin\Debug>cd\ C:\>cd C:\Program Files\Microsoft Visual Studio .NET 2003\SDK\v1.1\Bin\ C:\Program Files\Microsoft Visual Studio .NET 2003\SDK\v1.1\Bin>gacutil /U Test Microsoft (R) .NET Global Assembly Cache Utility. Version 1.1.4322.573 Copyright (C) Microsoft Corporation 1998-2002. All rights reserved. No assemblies found that match: SenDll Number of items uninstalled = 0 Number of failures = 0 Note : I used the following cmd to register : C:\Program Files\Microsoft Visual Studio .NET 2003\SDK\v1.1\Bin>gacutil /i c:\Test.dll I see the file in GAC as Test Please advise me... Thanks in Advance... senthil Tag: .NET Base Class Library Best way to resize an image? .NET Development
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    - How do I serialize a Bitmap class? Hi all, I expect using C# to serialize a Bitmap would be straight forward, but it turns out that I am wrong. I tried with the code below but I failed to get the image data. Code Snippet class Program { static void Main(string[] args) { Bitmap corolla = new Bitmap(@"C:\corolla.jpg", true); // some image file. MemoryStream ms = new MemoryStream(); XmlTextWriter xw = new XmlTextWriter(ms, Encoding.UTF8); xw.Formatting = Formatting.Indented; XmlSerializer ser = new XmlSerializer(typeof(Bitmap)); ser.Serialize(xw, corolla); Console.WriteLine(Encoding.UTF8.GetString(ms.ToArray())); } } And the console output is Code Snippet < xml version="1.0" encoding="utf-8" > <Bitmap xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance" </A< A>xmlns:xsd="http://www.w3.org/2001/XMLSchema "> <Palette /> </Bitmap> How can I serialize the image data into a xml file Tag: .NET Base Class Library Best way to resize an image? .NET Development
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    - .NET service does not stop normally during shutdown Im working with a .NET project that contains four processes running as services. Those processes using more than 10 database connections to SQL Server or Oracle. My customer wants the system to allow rebbot of servers during production. This mean that the process need to terminate in a controlled way. My service is coded as below and does not terminate in a controlled way. The System calls my OnShutdown method who stop a TCP server in a controled way and disconnect all database connections and close open cursors. The problem is that the Main will hangs at the System.ServiceProcess.ServiceBase.Run method. This cause the SCM to kill my process and the database connection in the process connection pool will remain opened in the Oracle server. I get problem to start myprocesses after the reboot because all available database conenction in Oracle is busy. Here is some code. public C_MMCSvc() { ServiceName = "MMC_Server"; this .CanStop = true ; this .CanShutdown = true ; } static void Main() { System.ServiceProcess.ServiceBase oServiceHanlder = new C_MMCSvc(); System.ServiceProcess.ServiceBase.Run( oServiceHanlder); } protected override void OnStart( string [] args) { m_oMMC = new C_MMC(); m_oMMCThread = new Thread( new ThreadStart( m_oMMC.Run)); m_oMMCThread.Start(); } protected override void OnStop() { StopService(); } { StopService(); } private void StopService() { m_oMMC.Stop(); m_oMMCThread.Join(); Thread.Sleep( 500); } Tag: .NET Base Class Library Best way to resize an image? .NET Development
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    - Negated Character class Hi All, I want to have a negated character class only for few characters, the rest of the chracters should have a normal meaning. I have given an example [(^a)\d]$ I want the negation only to occur for "a" and not for the "\d". Is there any way to do this. Thanks, Murali Tag: .NET Base Class Library Best way to resize an image? .NET Development
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    - FTP GetFileSize Confusing Problem I am in the process of writing an FTP client in .NET 2.0. During the testing of getFileSize, I have come across a strange and confusing error. I have a test directory of over 200+ files that I was testing this on, and for every file in this directory this method worked fine EXCEPT on files with an exact size of 17227 bytes. When I call this method on a file of this size I get the WebException with the message of: "The remote server returned an error: 213 1722_" Well, as you can see the 213 File Status response is fine except that the last '7' in the size is now a '_' ..... Let me say again, this method worked on every file in the test directory except files of size 17227 bytes. WTF Any ideas anyone public long getFileSize( string remoteFilePath) { long fileSize = 0; try { //Set connection properties ftpRequest = (FtpWebRequest)FtpWebRequest.Create( new Uri(remoteFilePath)); ftpRequest.Credentials = new NetworkCredential(userName, password); ftpRequest.UseBinary = useBinary; ftpRequest.UsePassive = usePassive; ftpRequest.KeepAlive = keepAlive; ftpRequest.Proxy = null ; //Set command ftpRequest.Method = WebRequestMethods.Ftp.GetFileSize; FtpWebResponse response = (FtpWebResponse)ftpRequest.GetResponse(); Stream ftpStream = response.GetResponseStream(); fileSize = response.ContentLength; ftpStream.Close(); response.Close(); } catch { throw ; } return fileSize; } Tag: .NET Base Class Library Best way to resize an image? .NET Development
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    - Uninstalled IIS due to corruption then reinstalled IIS - What issues may I encounter Please Help! I have Uninstalled IIS due to corruption then reinstalled IIS. Currently I have Microsoft.Net FrameWork 1 + 2 installed on my system, as well as Visual Studio 2005 Pro and SQL Server 2005 Express Edition. Also I have Borland Delphi 7 and Coldfusion MX 7. Coldfusion has already problems, and wont load the .cfm extensions so I have had to Uninstall and reInstall this to get it to work correctly. I have noticed that some of the Quickstart pages associated with .Net Framework 2.0 and ASP.net wont load - when their web address points to my localhost already. Is there a way to repair these installations. Can I expect more troubles with my other Microsoft Installations because Of the uninstallation, Reinstallation of IIS . Please any advice besides reformatting my Hard Drive and reinstalling all my beloved Microsoft Installations. Thanks!. Tag: .NET Base Class Library Best way to resize an image? .NET Development
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    - Splitting string into groups Hi, I had a problem with splitting string like that: // begin "<filename>" // folderName "<folderName>" <content> //end "<filename>" // begin "<filename>" // folderName "<folderName>" <content> //end "<filename>" // begin "<filename>" // folderName "<folderName>" <content> //end "<filename>" Note: By <filename>, etc I have marked groups names. I would like use NextMatch() method to get one file and next information from groups like filename, folder name, and file content. Thanks for all hints . Regards, Lukasz Tag: .NET Base Class Library Best way to resize an image? .NET Development
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    - Excessive garbage collection in .net 1.1 Hi, We have a .net 1.1 application that is displaying very strange behaviour with respects to garbage collection. The application is designed to pull data from a SQL database and generate a report out of this. The database is relatively large (roughly 30G of data) and the application needs to go through fairly large portions of this data to generate the output. We use a cache with weak links to reduce the actual SQL queries that are being run, which is a huge increase in performance under normal circumstances. Now, the issue we are having is that the application starts to garbage collect excessively (on the order of 10 gen-0 GCs, and around 2 gen-1 GCs per second) randomly during execution. Normally, the application can end up using around 1GB of memory, but once this garbage collection issue appears, the application stops at around 100MB. When this GC issue crops up, our cache with weak references is dropped and the application starts hammering the SQL server with queries and ends up slowing down to a crawl. I have included a dump of "!eeheap -gc" from WinDbg when the server is in this state at the bottom of this post. As you can see, there are 8 cores on this server, and each core has about 1MB of data in the heap (all in gen-2 due to this excessive GC). There is about 3GB of free physical RAM on the server, and the .net process is, as I mentioned above, using about 100MB in total. Doing a "!dumpheap -stat" shows that a lot of the data in the heap is strings (on the order of 100,000 of them) which to me doesn't seem too excessive. My question is, why does the application enter this state of frenzied GC calls when there should be plenty of memory left for the application At times it runs fine, and grows up to the expected 1GB of memory usage while at other times it goes straight into this GC-frenzy mode. Any insight into what may cause this would be appreciated. If you have suggestions on what to read to figure out what's going on and hopefully fix the issue, I'd be happy for a link to it or an ISBN for a book describing it. Thank you in advance! 0:045> !eeheap -gc Number of GC Heaps: 8 ------------------------------ Heap 0 (0x000d2468) generation 0 starts at 0x0286ed40 generation 1 starts at 0x02841914 generation 2 starts at 0x027b0030 ephemeral segment allocation context: none segment begin allocated size reserved 0x027b0000 0x027b0030 0x0286ed4c 0x000bed1c(781,596) 0x01c2f000 Large object heap starts at 0x127b0030 segment begin allocated size reserved 0x127b0000 0x127b0030 0x128051a0 0x00055170(348,528) 0x007aa000 Heap Size 0x255524(2,446,628) ------------------------------ Heap 1 (0x000d2b88) generation 0 starts at 0x04852d2c generation 1 starts at 0x048220fc generation 2 starts at 0x047b0030 ephemeral segment allocation context: none segment begin allocated size reserved 0x047b0000 0x047b0030 0x04852d38 0x000a2d08(666,888) 0x01c1f000 Large object heap starts at 0x12fb0030 segment begin allocated size reserved 0x12fb0000 0x12fb0030 0x12fcd9e0 0x0001d9b0(121,264) 0x007df000 Heap Size 0xcca7c(838,268) ------------------------------ Heap 2 (0x000d3698) generation 0 starts at 0x06839064 generation 1 starts at 0x06834014 generation 2 starts at 0x067b0030 ephemeral segment allocation context: none segment begin allocated size reserved 0x067b0000 0x067b0030 0x06839070 0x00089040(561,216) 0x01c9f000 Large object heap starts at 0x137b0030 segment begin allocated size reserved 0x137b0000 0x137b0030 0x137b0030 0x00000000(0) 0x007a4000 Heap Size 0x89040(561,216) ------------------------------ Heap 3 (0x000d4180) generation 0 starts at 0x088949a0 generation 1 starts at 0x0887662c generation 2 starts at 0x087b0030 ephemeral segment allocation context: none segment begin allocated size reserved 0x087b0000 0x087b0030 0x088949ac 0x000e497c(936,316) 0x01c5f000 Large object heap starts at 0x13fb0030 segment begin allocated size reserved 0x13fb0000 0x13fb0030 0x13fb0030 0x00000000(0) 0x007e2000 Heap Size 0xe497c(936,316) ------------------------------ Heap 4 (0x000d4c68) generation 0 starts at 0x0a8759e4 generation 1 starts at 0x0a87097c generation 2 starts at 0x0a7b0030 ephemeral segment allocation context: none segment begin allocated size reserved 0x0a7b0000 0x0a7b0030 0x0a8759f0 0x000c59c0(809,408) 0x01bef000 Large object heap starts at 0x147b0030 segment begin allocated size reserved 0x147b0000 0x147b0030 0x147b0030 0x00000000(0) 0x007c2000 Heap Size 0xd3d84(867,716) ------------------------------ Heap 5 (0x000d5750) generation 0 starts at 0x0c8675b0 generation 1 starts at 0x0c826948 generation 2 starts at 0x0c7b0030 ephemeral segment allocation context: none segment begin allocated size reserved 0x0c7b0000 0x0c7b0030 0x0c8675bc 0x000b758c(750,988) 0x01caf000 Large object heap starts at 0x14fb0030 segment begin allocated size reserved 0x14fb0000 0x14fb0030 0x14fb0030 0x00000000(0) 0x007c2000 Heap Size 0x20cfe8(2,150,376) ------------------------------ Heap 6 (0x000d6028) generation 0 starts at 0x0e8aee0c generation 1 starts at 0x0e8a1ffc generation 2 starts at 0x0e7b0030 ephemeral segment allocation context: none segment begin allocated size reserved 0x0e7b0000 0x0e7b0030 0x0e8aee18 0x000fede8(1,043,944) 0x01bff000 Large object heap starts at 0x157b0030 segment begin allocated size reserved 0x157b0000 0x157b0030 0x157b0030 0x00000000(0) 0x007c2000 Heap Size 0x106de8(1,076,712) ------------------------------ Heap 7 (0x000d6b10) generation 0 starts at 0x1087d144 generation 1 starts at 0x10852cf8 generation 2 starts at 0x107b0030 ephemeral segment allocation context: none segment begin allocated size reserved 0x107b0000 0x107b0030 0x1087d150 0x000cd120(839,968) 0x01baf000 Large object heap starts at 0x15fb0030 segment begin allocated size reserved 0x15fb0000 0x15fb0030 0x15fb0030 0x00000000(0) 0x007df000 Heap Size 0xcd120(839,968) ------------------------------ Reserved segments: ------------------------------ GC Heap Size 0x9445d0(9,717,200) Tag: .NET Base Class Library Best way to resize an image? .NET Development
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    - ConfigurationManager.OpenMappedExeConfiguration is very finicky Hi, I am using ConfigurationManager.OpenMappedExeConfiguration() to specify a roaming user config file that I can easily persist settings too. However, I find it is extremely finicky, when adding, removing, or renaming settings or sections. ie, when adding, if there is a new setting that is not also in the xml file, it throws an exception. When removing or renaming, if there is a setting in the xml file that is not in the mapped class, it throws an exception. It is almost as if I will need to write some sort of helper function that compares the Xml file to the mapped setting classes, and add/remove items from the xml file if it does not match... Or, am I missing something Thanks, Dan Tag: .NET Base Class Library Best way to resize an image? .NET Development
  - 10
    - How do I change system timer value in app.config I would like to change one of my system timer values in my code (I am allowing the user to change the polling rate, which is determined by this timer value). I would like to store this value in app.config so that each time the application starts the new value is applied to the timer. However, I am having trouble understanding how to access, modify, and save a new value in app.config. Here is my app.config file: < xml version = " 1.0 " > < configuration > < appSettings >   < add key = " timer1.Enabled " value = " True " /> < add key = " timer1.Interval " value = " 500 " /> </ appSettings > < startup > </ startup ></ configuration > I would like to allow the user to vary the timer1.Interval value in my code, and then save this new value in app.config. Can anyone give me some suggestions on the correct way to do this So far I have written the following: NameValueCollection appSettings = ConfigurationManager .AppSettings; ..but I am not sure how to modify the value of timer1.Interval. Any suggestions would be appreciated. Tag: .NET Base Class Library Best way to resize an image? .NET Development
  - 11
    - Data validation prior to an INSERT statement. Problem: I am using C# to create a (hopefully) simple UI to access data stored in 1 table. I created the DataSource and a DataGrid. I then dropped the datasource on the grid and Visual Studio helpfully created all the controls that I need. However, the table contains columns that do not allow null. How can I trap the fact that an inserted row contains a column with a null value Thank you in advance. Tag: .NET Base Class Library Best way to resize an image? .NET Development
  - 12
    - aspnet_Membership_CreateUser makes me cry. Hello, I'm hoping that this is in the right forum, but this is a bit of a weird question, I think. I've got an asp .net website with a working membership system, using the sqlMembership provider. This is working properly without a hitch, but I am working on changing the system so that user membership information can be updated from an iSeries. This basically leaves me using Java and JDBC to call stored procedures to manage user data. This seems to work fine, in a general sense. I can modify data for existing users, and everything is hunky-dorey. The problem is that creating new users is a bit strange. It does work, and I can see the users on teh SQL server when I run the aspnet_Membership_GetAllUsers stored procedure, but I can not get users created this way to validate and log in to the website. I'm thinking the problem is in the way I'm calling the aspnet_Membership_CreateUser stored procedure. I've included what believe to be the relevant code below. I'm guessing the problem is related to the password salt and the password format. I do understand that this stuff is technically supposed to be more back-end and not ran directly, but since writing C# on the iSeries is not an option, this is what I'm left with. It seems like it should work, and in fact, nearly does. Thanks in advance for any assistance, Daniel web.config <membership defaultProvider="myProvider"> <providers> <add name="myProvider" type="System.Web.Security.SqlMembershipProvider" connectionStringName="myConnectionString" applicationName="myApplication" minRequiredPasswordLength="8" minRequiredNonalphanumericCharacters="0" requiresQuestionAndAnswer="false" enablePasswordReset="false" /> </providers> Stored Procedure DECLARE @currentDateTime datetime; DECLARE @results int; SET @currentDateTime = GetDate(); EXEC @results = membershipDB.[dbo].[aspnet_Membership_CreateUser] @ApplicationName = N'myApplication', @UserName = @parmUserName, @Password = @parmPassword, @PasswordSalt = '', @Email = @parmEmail, @PasswordQuestion = NULL, @PasswordAnswer = NULL, @IsApproved = 1, @CurrentTimeUtc = @currentDateTime, @CreateDate = @currentDateTime, @UniqueEmail = 1, @PasswordFormat = 1, @UserId = @UserId OUTPUT Tag: .NET Base Class Library Best way to resize an image? .NET Development
  - 13
    - Setting source code location in pdb files Hi, Is it possible to add a source code location to a pdb-file Now when our development platform is being built on a separate build machine Visual Studio 2005 always looks for the source code in a local path on the build machine. What I would like to do is have the build script set the pdb-files' source code location point to \\server\sourcecode\ buildnumber \ and then the build script would copy all source code files to this directory (all files would be in the same directory without folder hierarchy). Then the developers that use the development platform could copy the dlls and pdb files locally and then when stepping into platform code visual studio would look in this directory. Is this possible or does anyone have any other idea I've read some about symbol servers but we don't have autoincremented version numbers on the binaries but change the version only when there is a larger change. Therefore I assume that the symbols (is source code accessible through a symbol server ) produced on night 2 would overwrite the ones from night 1 since the version number hasn't changed event though source code might have. Tag: .NET Base Class Library Best way to resize an image? .NET Development
  - 14
    - UPDATE: mscorsvw hogs memory not sure if this is an orcas problem. yesterday C:\Windows\Microsoft.NET\Framework\v2.0.50727\mscorsvw.exe had consumed all available physical memory I run ngen version 2.0.50727.312 from command line: ngen executeenqueueditems memory is slowly reclaimed from mscorsvw.exe though ngen.exe grows and ngen never finishes and consumes all physical memory (peaked at about 450mb mem consumption and then fluctuated with a delta ��10mb.) After 20 minutes, I terminated ngen via a ctrl+c. and rebooted (but didnt log in as I was on my way out) I came in this morning and logged in. Again my machine was slow. I looked at task manager and once again the mscorsvw.exe had hogged all the memory. Again, I run ngen executeenqueueditems , and, once again, it appears to hang consuming all physical memory I notice that ngen seems to have kicked off an msiexec process. . . I terminate the msiexec processes and it ngen starts throwing some errors related to the microsoft.visualstudio(v 8.0.xxxx) and hangs again but with a few more msiexec processes. again I terminate them and ngen starts throwing more errors related to microsoft.visualstudio(v 8.0.xxxx) and then starts building the version 9.0 assemblies and then hangs again for a while. finally I terminate ngen. One more time, I run ngen executeenqueueditems , and this time it appears to run in a more friendly manner. . . it immediately tells me it will compile 87 assemblies (it never did that before, it just gave me the version information) and that it is - Compiling assembly Microsoft.VisualStudio.EnterpriseTools, v8.0. . . and then sits there for a while. . . been sitting there for 10 minutes now. I will let it run for a half an hour and see what happens. at any rate, is this normal behavior platform Vista x86 RTM/3.2 ghz Pentium 4ht w/1GB memory software (abbreviated to what appears to be relevent) Visual Studio Code Name Orcas (devenv.exe v9.0.11.209.00) Microsoft .Net Framework 3.5 (green bits) MS Office Ultimate 2007 RTM Microsoft Visual Studio 2007 tools for office Microsoft SQL Server Everywhere Edition v3.5 Microsoft SQL Server Everywhere Edition Developer Tools v3.5 Tag: .NET Base Class Library Best way to resize an image? .NET Development
  - 15
    - Difference between performance counters of Asp.net and Asp.net Application performance objects? Hi, I'm using PERFMON utility to measure performance of an asp.net application with Asp.Net and Asp.Net Applications performance objects (attribute group) of Perfmon Utility. I've deployed 2 same Asp.Net application on my machine, the only difference is one is developed using Asp.Net 1.1 and the other is developed using Asp.Net 2.0. Through observation I've noticed one thing that's Asp.Net and Asp.Net Application attribute group reflects the values same as Asp.Net 2.0. and Asp.Net Apps 2.0 attribute group and not refecting the values those are of Asp.Net 1.1.4322 and Asp.Net Apps 1.1.4322 attribute groups. My understanding for this is Asp.Net and Asp.Net Applications are generic attribute group and they should refelect values of both attribute groups (Asp.Net 1.1.4322 and Asp.Net 2.0 as well Asp.net Apps 1.1.4322 and Asp.Net Apps 2.0). I've all 3 versions of .Net installed on my machine but I'm not getting any attribute group specific to Asp.Net 3.0 like previous two. Can anyone make me clear on which attribute group to use for measuring performance of various Asp.Net Application i.e. Generic one or Version Specific Tag: .NET Base Class Library Best way to resize an image? .NET Development
  - 16
    - How can I implement XML database Dear Sirs I used DataSet to create several tables and record every production information, but the system has no any database like SQL Server etc.. So I want to save these tables as XML file. Because I care the real time production information missing if the AP or PC crash, so I save data to XML file every new record to produce. The questions are: 1. Is this concept correct 2.Is saving Loading more heavy when production record more large 3.If the item 2 will happen, how can I do Best Regards Charles MF. Tag: .NET Base Class Library Best way to resize an image? .NET Development

Devin

Hi there,

I'm wondering what the best way is to resize an Image or Bitmap I'm currently thinking about creating a new image and creating a graphics object on it and drawing the image from the old surface to the new surface using the DrawImage method of the Graphics class. Is this OK or is there a better way

Thanks in advance,

-Devin

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Re: .NET Base Class Library Best way to resize an image?

nobugz

Yes, that's the way to do it.

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Re: .NET Base Class Library Best way to resize an image?

JohnWein

This does the same thing with fewer words:

ResizedBitmap = new Bitmap(OriginalBitmap, NewWidth, NewHeight)

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