XML over the Serial Port
Visual C# General
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- DatePicker Hello Figo DatePicker's GUI interface is simillar to that of combobox - it has white box with arrow in one side. When user clicks on arrow then date board appears where date can be selected. I am required a little improve user's using of this control, i.e. when user clicks on white part of "combobox" the date board should appear (as if he clicked on arrow). In order to do that I need know a command that opens date board. What is this command Thank for your answer Yosef Fishov Tag: Visual C# General XML over the Serial Port Visual C#
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- ref keyword I want to invoke a method from DLL dynamically that has some parameters like int ** pointer; I am using the following code to load dynamic a DLL Code Snippet public object DynamicDllFunctionInvoke( string dllPath, string entryPoint, params object [] pars) { //Define return type of your dll function. Type returnType = typeof ( int ); //out or in parameters of your function. Type [] parameterTypes = new Type [pars.Length]; for ( int i = 0; i < pars.Length; i++) { parameterTypes[i] = pars[i].GetType(); } object [] parameterValues = pars; // Create a dynamic assembly and a dynamic module AssemblyName asmName = new AssemblyName (); asmName.Name = "tempDll" ; AssemblyBuilder dynamicAsm = AppDomain .CurrentDomain.DefineDynamicAssembly(asmName, AssemblyBuilderAccess .Run); ModuleBuilder dynamicMod = dynamicAsm.DefineDynamicModule( "tempModule" ); // Dynamically construct a global PInvoke signature // using the input information MethodBuilder dynamicMethod = dynamicMod.DefinePInvokeMethod( entryPoint, dllPath, MethodAttributes .Static | MethodAttributes .Public | MethodAttributes .PinvokeImpl, CallingConventions .Standard, returnType, parameterTypes, CallingConvention .Winapi, CharSet .Ansi); // This global method is now complete dynamicMod.CreateGlobalFunctions(); // Get a MethodInfo for the PInvoke method MethodInfo mi = dynamicMod.GetMethod(EntryPoint); // Invoke the static method and return whatever it returns object retval = mi.Invoke( null , parameterValues); // Filled verstr paramter. return retval; } When I use DllImportAttribute to wrap the DLL, the method has a parameter like this : ref IntPtr pointer and the method is ran correctly. As you can see, the Invoke method from MethodBuilder has the second parameter an object[] . I want to use the method of calling the DLL's method because I have a couple of versions of the DLL and I don`t want to replace the DLL for each version. I simply change the path to that DLL. Hope you'll understand better now my problem... Tag: Visual C# General XML over the Serial Port Visual C#
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- Cast to instance of type So, how do I create an instance of a type when all I have is the Type information However I have solved my original problem..... PropertyInfo pi = toCast.GetType().GetProperty("Age"); and pi.GetValue(toCast, null ).ToString() My problem was I did not think toCast.GetType().GetProperty("Age"); would work while toCast was an object, I thought I needed to cast it to MyCustomClass before I could access the properties Thanks for the reply. Tag: Visual C# General XML over the Serial Port Visual C#
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- copying a windows folder structure to sql server I i want to upload that structure to a sharepoint site. I m not sure yet if that s possible in sharepoint if someone familiar with sharepoint pls help Thanks Tag: Visual C# General XML over the Serial Port Visual C#
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- Error in accessing DLL: "Attempted to read or write protected memory." thanks Peter for a quick anwser, yes, in my local drive/folder it works perfectly. Tag: Visual C# General XML over the Serial Port Visual C#
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- Completely dynamic method invocation What I'm trying to do is a little weird. I'm building a console system which allows the user to execute C# code that he types into an in-game console GUI while the program is running. Basically, I have programmed a static method called Execute. It takes a string of C# code as a parameter as well as a generic Object of a known type. It takes the passed C# code and surrounds it with the necessary code compile into a static function inside an assembly in memory. That function is then invoked via reflection, thus finally executing the code that the user entered into the console. The reason I want to be able to blindly invoke methods is this - Remember the generic Object that is passed into the Execute function that I spoke about It should be able to have methods called on it without being explicitly casted to it's actual type. It's somewhat like a scripting language feature. If there is a way to do blind invocation on a chunk of code, I want to be able to do it in the code generated by the Execute function. This probably sounds hard to understand, but it's just a real-time interactive console. If you've ever used TGE, TSE, or TGB, you'll know what I'm talking about for sure :) Tag: Visual C# General XML over the Serial Port Visual C#
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- Help Search doesn't work Thanks for your reply. Yes, the refresh is installed. I disabled all firewall-stuff, without any effect. But: It works when using the external help viewer. And it works, when copy&paste the correct URL into the internal help viewer manually. Strange enough, using the internal viewer, no local help-items are found for "TabControl". The extrernal viewer shows 314 hits. I use Vista with UAC enabled. I come across lots of lots of problems with that. So could it be that this is the problem Tag: Visual C# General XML over the Serial Port Visual C#
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- Help on Conditional operator ?: It does not work, because the second result (after the :) is of type DBNull and the first is of type DateTime. The tenary operator works only if both return types are the same! Tag: Visual C# General XML over the Serial Port Visual C#
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- debuging multi thread application problem thank you for your helpful reply. so I should ask one other question(don't mark as answer yet to don't loose attention). I am trying to throw all the exeptions to the main method and handle them there. but when the error occur the program will stop in thow line instead of going to the main. note that I manage to have try and catch in all of my blocks and throw all of them except main method but it don't go there. this was the reason that I thought it might be the threading problem Tag: Visual C# General XML over the Serial Port Visual C#
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- Why Won't My App Run on Windows 2003 Server? My Application Starts by Launching the Form. I recieve an Error Message that states. FolderWatcher has encounter a problem and needs to close. We are sorry... When I first tried it I did get an error in the windows even log, but now it is not there any more. It stated: Source: .Net Runtime 2.0 Error, Category: None, Type: Error, Event ID 5000, USer:NA Event Type clr20r3, P1 folderwatcher.exe P2 1.0.0.0 P3 45b53d29, P4 system, P5 2.0.0.0, P6 4333ae87, P7 35e3, P8 60, P9 system argument exception, P10 NIL I have tried this on 2 different windows 2003 servers and 2 different XP boxes... always works on xp, but not on 2003 server. I reinstalled the 2.0 .Net framework, but this did not help. When I built the app I chose Publish App, which create a setup.exe and some other files. I ran this and it installed fine. Tag: Visual C# General XML over the Serial Port Visual C#
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- import C# Form as ActiveX in Internet Explorer Still does not work. I'm thinking about just importing the c# library into a normal activex control using the interop stuff which work, but I would rather just use the c# since it easy much easier. Tag: Visual C# General XML over the Serial Port Visual C#
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- Text encoding mismatch, .NET 1.1, console vs windows app Thanks for replay, it seems i have to introduce some corrections and perform ipc in some other way. What are the alternative solutions for IPC in C# Tag: Visual C# General XML over the Serial Port Visual C#
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- Threading Question why do you think it isn't starting on a seperate thread, does the UI of the application 'freeze' after creating the thread In fact does UI do anything after creating the thread or does it just sit there IMO - the use of Application.DoEvents should be avoided, you shouldn't have to 'pump' messages around your application yourself, it is a hang over from VB when they couldn't process asynchronously in a form. HTH Ollie Riches Tag: Visual C# General XML over the Serial Port Visual C#
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- opening other programs? Yes, it's very simple actually. The Process class in .NET is pretty smart. For example, if you do the following: System.Diagnostics.Process.Start("http://www.yahoo.com") it will start the user's default browser and go to the Yahoo home page (this is of course dependent on whether the default browser accepts a URL as a command line argument - all the major browsers do). You can start any known program this way - pass it a text file, it will start the default text editor; pass it a path to a movie, it will use the default movie viewer. You can pass it an executable name too and if it can find the exe on the user's path, it will start that; if it's not on the default path you'll have to pass it the full path to the exe. Tag: Visual C# General XML over the Serial Port Visual C#
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- Help - How to create test code Dear All: I am new for c#, Any reference for me to create a system that can test/checking the coding. Is it the structure is correct or method is similar with my coding. I am really can't get any of idea how to create the coding for checking the java coding is correct or not. Thanks for anyone are helping. Regards: Cathyie Tag: Visual C# General XML over the Serial Port Visual C#
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- Internet Control.. Check out the System.Net namespace, everything about internet/socket is there http://msdn2.microsoft.com/en-us/library/system.net.aspx Tag: Visual C# General XML over the Serial Port Visual C#
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- C#.NET 2005 Windows Service Crashing automatically Hi Fernando, Thanks for your response and suggestion. Yes, I am using the office interop and release memory using the following function for all COM objects. << private void ReleaseCOMobject( Object obj) { try { while (System.Runtime.InteropServices. Marshal .ReleaseComObject(obj) > 0) { ;} } catch ( Exception ex) { _logger.WriteError( "Exception at AccessQueryExecutor.ReleaseCOMobject() : " + ex.Message); } } >> I am also logging exceptions in a text file.....but it is coming as blank. Also, I have hooked the service start with AppDomain .CurrentDomain.UnhandledException event and logging it in a text file. Thanks & Regards, Rahul Tag: Visual C# General XML over the Serial Port Visual C#
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- Problems with Intellisense popup behavior Hi Suma, I'm don't think anything else is running that would be grabbing focus. What type of application would do that This condition seems to happen for each Visual C# Web application that I create. I used Webex to record an example in a new project. Each time the intellisense goes away it is on its own. I am not pressing any keys. How do I attach the Webex recording Thanks, Earl Tag: Visual C# General XML over the Serial Port Visual C#
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- referencing and using an assembly in different folder than App So the assemblies have to have a strong name, wich is in our case not really suitable. We have a pluginarchitecture where different applications can load the same plugin-assemblies and they all should live in the same folder. Since we use xcopy-deployment we would not want to install anything (into the GAC). So one option to solve this issue is make each application upon startup copy all assemblies found in the shareddll-folder to a local subdirectory. Do you see any problems / pitfalls with this approach Tag: Visual C# General XML over the Serial Port Visual C#
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- SP2 causing error? The error is as follows: Application has generated an exception that could not be handled. Process id=0x15c(348), Thread id=0x734(1844). The machine had Windows XP SP1 and IE6 installed. This was the same error that appeared on a machine with Windows 2000 and IE6. Thanks for the help. Tag: Visual C# General XML over the Serial Port Visual C#
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- Looking for possible AssemblyVersion asterix override using config file. Thanks. This is interessting.. My actual problem is finding a way to put the svn revision number that the current build was based on in the assmeblyversion or assemblyfileversion, but maybe easier to make the buildscript write that to a text file... PS. We are using Finalbuilder. Tag: Visual C# General XML over the Serial Port Visual C#
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- using System.Collections Thanks Friendly dog, That is exactly what I am looking for, Many Thanks Chris Tag: Visual C# General XML over the Serial Port Visual C#
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- limit property values thanks, that's exactly what i want, but how do i associate the combo with the property Tag: Visual C# General XML over the Serial Port Visual C#
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- How to use multithreading in for loop? Hi Alberto, Thanks for your reply. In my scenario, there may be a case when 10-12 databases will get updated. The application that I have is of client and I don't want to manipulate too much in it. Like I mentioned in my previous post that application is using ASync delegate at present. There are other things in the BeginProcess function that are being done, in addition to database updates.So, I am looking for an approach that will provide optimized result without too much tinkering with present code. Is it possible to open threads for each database update inside BeginProcess function I know that you have mentioned to be aware of this in your post, but, can i do it inside async delegate function. Regards, Tag: Visual C# General XML over the Serial Port Visual C#
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- How to launch application from service on current user's desktop? A user doesn't log off when switched; you technically have muliple current uers asnd multiple desktops. Tag: Visual C# General XML over the Serial Port Visual C#
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- c# Insert into Sql string sqlIns = "INSERT INTO table (name, information, other) VALUES (@name, @information, @other)"; db.Open(); try { SqlCommand cmdIns = new SqlCommand(sqlIns, db.Connection); cmdIns.Parameters.Add("@name", info); cmdIns.Parameters.Add("@information", info1); cmdIns.Parameters.Add("@other", info2); cmdIns.ExecuteNonQuery(); cmdIns.Parameters.Clear(); cmdIns.CommandText = "SELECT @@IDENTITY"; // Get the last inserted id. int insertID = Convert.ToInt32( cmdIns.ExecuteScalar() ); cmdIns.Dispose(); cmdIns = null; } catch(Exception ex) { throw new Exception(ex.ToString(), ex); } finally { db.Close(); } Tag: Visual C# General XML over the Serial Port Visual C#
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- How to set the default browser setting in Visual studio 2005 Dear TaylorMichaelL I fail to find Web tab in the project properties. Please Guide me vijil jones Tag: Visual C# General XML over the Serial Port Visual C#
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- How to increase the length of DirectoryInfo[] That is not alowed in C#. You can do it with creating new array with new dimension and copy all elements of current array. But Why do you need such thing with DirecoryInfo array. Tag: Visual C# General XML over the Serial Port Visual C#
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- Business Logic Layer Question Thanks for the response, although it really has gotten me no closer to an answer. I can't believe that there isn't a simple way to just attach a delegate or something to a fields change event that we could call to do things. Having to write all this code just to provide a mechanism is crazy. Microsoft and everyone else pushes breaking things down into 3 layers but NO ONE provides a single workable example. If Microsoft if so dedicated to this stream of thinking why haven't they provided better tools glenn Tag: Visual C# General XML over the Serial Port Visual C#
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- How Can I read cookies of my machine HI, Thank you for your reply. I tried the example in second link. I created sample web page in my local machine in IIS, If I access the page using IE it showing the cookies count 2 and displaying 2 cookies. but When I tried to get cookies using the code given in the example. it is giving cookies count 1 and displaying cookies 1. the code: HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(textBox2.Text.Trim()); request.CookieContainer = new CookieContainer(); HttpWebResponse response = (HttpWebResponse) request.GetResponse(); response.Cookies = request.CookieContainer.GetCookies(request.RequestUri); StringBuilder strCookie = new StringBuilder(); strCookie.Append(Environment.NewLine ); strCookie.Append(" Cookies count " + response.Cookies.Count.ToString() + Environment.NewLine); // Print the properties of each cookie. foreach (Cookie cook in response.Cookies) { strCookie.Append("Cookie:"+Environment.NewLine ); strCookie.Append(string.Format("Name: {0} = {1}"+Environment.NewLine , cook.Name, cook.Value)); strCookie.Append(string.Format("Domain: {0} " +Environment.NewLine, cook.Domain)); strCookie.Append(string.Format("Path: {0} " +Environment.NewLine, cook.Path)); strCookie.Append(string.Format("Port: {0} " +Environment.NewLine, cook.Port)); strCookie.Append(string.Format("Secure: {0} " +Environment.NewLine, cook.Secure)); strCookie.Append(string.Format("When issued: {0} " +Environment.NewLine, cook.TimeStamp)); strCookie.Append(string.Format("Expires: {0} (expired {1}) " +Environment.NewLine, cook.Expires, cook.Expired)); strCookie.Append(string.Format("Don't save: {0}" +Environment.NewLine, cook.Discard)); strCookie.Append(string.Format("Comment: {0}"+Environment.NewLine, cook.Comment)); strCookie.Append(string.Format("Uri for comments: {0}" +Environment.NewLine, cook.CommentUri)); strCookie.Append(string.Format("Version: RFC {0}" +Environment.NewLine, cook.Version == 1 "2109" : "2965")); // Show the string representation of the cookie. strCookie.Append( string.Format("String: {0}"+Environment.NewLine, cook.ToString())); strCookie.Append(Environment.NewLine + Environment.NewLine ); } WebHeaderCollection webHeaderCol = response.Headers ; strCookie.Append("Header Collection"+Environment.NewLine +"====================="+Environment.NewLine ); foreach(string s in webHeaderCol.AllKeys) { strCookie.Append(s +" -> " +response.Headers.Get(s)+ Environment.NewLine ); } response.Close(); textBox1.Text = strCookie.ToString(); Tag: Visual C# General XML over the Serial Port Visual C#
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- question about using directive Hey, It means that if you specify using System.Collections, it does not automatically give you access to all the classes in using System.Collections.Generic; rather, you have to specify both if you need to access both. Brian Tag: Visual C# General XML over the Serial Port Visual C#
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- How do know if the thread has completed it operation? no. i am looking for something like event-like functionalities so that calling thread can be notified from the called called thread. Tag: Visual C# General XML over the Serial Port Visual C#
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Maks
Is there a better way to do the job than read bytes from the port to an array and then trick them into XML document. I will appreciate design ideas or the snippet.
Re: Visual C# General XML over the Serial Port
OmegaMan
Trick Like making the bytes jump and roll over <g>
The job of reading data from any type of socket is to pull it off the port as fast as possible so there is no loss of data. Those packets are handed off to a manager that combines and coverts them for consumption by other layers in the application. If those bytes are meant as Xml, then they will have to be converted to ascii and loaded into an XmlDocument, there is no way around that.
I suggest you have a multi-threaded app, where the thread monitoring the socket only pulls data off of the socket and places it raw onto a queue to be pulled by another thread, whose sole job it is to convert it to an appropriate format that can be consumed by the business layer of the application.
Don't make the mistake of trying to do combination and reading of the port, otherwise one risks dropping packets.
Maks wrote:
Is there a better way to do the job than read bytes from the port to an array and then trick them into XML document. I will appreciate design ideas or the snippet.
Trick Like making the bytes jump and roll over <g>
The job of reading data from any type of socket is to pull it off the port as fast as possible so there is no loss of data. Those packets are handed off to a manager that combines and coverts them for consumption by other layers in the application. If those bytes are meant as Xml, then they will have to be converted to ascii and loaded into an XmlDocument, there is no way around that.
I suggest you have a multi-threaded app, where the thread monitoring the socket only pulls data off of the socket and places it raw onto a queue to be pulled by another thread, whose sole job it is to convert it to an appropriate format that can be consumed by the business layer of the application.
Don't make the mistake of trying to do combination and reading of the port, otherwise one risks dropping packets.