Webservice GPRS Connection

.NET Compact Framework

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    - Getting the handle of Textbox in .Net Compact Framework 1.0 You can restrict a box to just numeric by catching the KeyPress event of the text box and ignoring the non-numeric characters. The code would be something like (vb) Private Sub TheTextBox_KeyPress(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TheTextBox.KeyPress If (e.KeyChar = Convert.ToChar(Keys.Back) OrElse e.KeyChar = Convert.ToChar(Keys.Delete) OrElse IsNumeric(e.KeyChar)) Then e.Handled = False Else e.Handled = True End If End Sub -I know this should work with .net cf 2.0, not sure about 1.0 though Tag: .NET Compact Framework Webservice GPRS Connection Smart Device Development
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    - CreateWindow and WM_ACTIVATE syncronization? Hello I noticed that after calling CreateWindow a message is dispatched to WM_ACTIVATE. My question is if there is any way using the SDK to determine if this is the first time WM_ACTIVATE is being called or not. My problem is that I have data that needs to be initialized in order for WM_ACTIVATE to work properly and this is not the case when WM_ACTIVATE is triggered by CreateWindow. The solution I have today uses a boolean flag to check for first occurrence but my question is if this would be possible to solve using a SDK function. Perhaps by checking if the window has been created or not Any ideas Many thanks, Martin Malek Tag: .NET Compact Framework Webservice GPRS Connection Smart Device Development
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    - Application is lost when power goes off Hi, I have created a C# .Net Compact Framework application which runs well on PDAs. The problem is that when the battery goes completely flat, my application which was installed is also gone. So user has to reinstall the application when they bring back power How Can I avoid that . Regards Mani Tag: .NET Compact Framework Webservice GPRS Connection Smart Device Development
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    - File upload with Sidebar Gadget Are you actually running this inside a gadget Gadget security environment is not the same as the Vista IE security environment. Tag: .NET Compact Framework Webservice GPRS Connection Smart Device Development
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    - PerformanceCounter Hello, I want to log the memory usage of my application. To do this I want to create a performance counter. But somehow it's not working. When i define: private System.Diagnostics.per* I see no PerformanceCounter. As stated here: http://msdn2.microsoft.com/en-us/library/system.diagnostics.performancecounter.aspx Version Information .NET Framework.NET Compact Framework Supported in: 3.0, 2.0, 1.1, 1.0 It should be working in .NET 2.0. I'm using visual studio 2005 and windows CE 5.0. Any suggestions Thanks. Tag: .NET Compact Framework Webservice GPRS Connection Smart Device Development
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    - Debugging WinCE 5 apps not working I'm trying to debug a Compact Framework 2.0 app on a Windows CE 5 device from VS2005 sp1. I assumed this should just work out of the box. When I set a breakpoint in the CF app, deploy and start debug the breakpoint indicates it wont be hit. The little exclamation point icon on the breakpoint indicates 'the specified module has not been loaded'. Any idea what is causing this The app deploys and runs fine on the device but I cannot debug. I thought this was a no-brainer. Tag: .NET Compact Framework Webservice GPRS Connection Smart Device Development
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    - Web service via a proxy server I have an application written in C# using .Net CF 2.0 which consumes a web service which sits on one of my servers. My device is running WM5 and the dev env is Visual Studio 2005. In the code, I create the web service, check there's a valid internet connection like this: ... req = ((HttpWebRequest)(WebRequest.Create(" http://www.microsoft.com "))); res = ((HttpWebResponse)(req.GetResponse())); if(res.StatusCode == HttpStatusCode.OK) return true; ... and then invoke a method on the webservice. This all works fine with the device cradled until I change my network settings to go via a proxy server. The PPC seems to pick up these proxy settings after a reset and I can see the web service via IE on the device. However, when I run the code it fails as soon as I try to invoke a method on the web service. The calls to the WebRequest used to check the internet connection still succeeds, but the webservice calls fail. The exception's HResult is -2146233079 and the _message is "WebException", there is no innerexception. I've tried setting the following just before I create the webservice: System.Net.GlobalProxySelection.Select = new System.Net.WebProxy(" http://192.168.x.x:6588 "); and I also set the following when I create the webservice: cws.Proxy = new System.Net.WebProxy(" http://192.168.x.x:6588 "); both of which are using the correct IP and port number. but this has no effect. I'm assuming that if the internet connection is fine in the app then I shouldn't need to make these calls anyway. I also assume that I'd only need to set the System.Net.GlobalProxySelection.Select and all subsequence web requests would then use these setting so there'd be no need to specify the proxy when I create the web service. Does anyone know what the problem is Tag: .NET Compact Framework Webservice GPRS Connection Smart Device Development
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    - deploying Hello, how can i install sql ce and cf 2.0 when my application is installed with the same file, without the user to run diffrent cab files. thnx in advance. Tag: .NET Compact Framework Webservice GPRS Connection Smart Device Development
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    - error with Win32 Smart Device application compiling Here's one more error... When trying to compile a Win32 Smart Device Application (it's an empty console application with an empty "main" function in it), I get the following error: "error LNK2019: unresolved external symbol wmain referenced in function mainWCRTStartup" The error occurs in "corelibc.lib" Can anyone shed light on why this is occurring when the project is almost empty Thanks, Phillip Tag: .NET Compact Framework Webservice GPRS Connection Smart Device Development
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    - radio form buttons? actually as you can see if you download the clock that radio buttons worked great :) ... now to see if I can come up with some nice faces for it too. Tag: .NET Compact Framework Webservice GPRS Connection Smart Device Development
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    - Question on removing InstallDir from [CEStrings] section of INF file Regarding a CAB file installation - I have read over-and-over on how to avoid being prompted to install to different storage locations on a mobile device by simply removing the InstallDir line from the [CEStrings] section, and hard-coding the location in the [DestinationDirs] section of the INF file. There's even an MSDN Library article mentioning it dated as late as 04/10/2007 titled "User Selected Installation" at http://msdn2.microsoft.com/en-us/library/aa924404.aspx This does NOT work. It ALWAYS results in the following error ... Error: Section [CEStrings] key "InstallDir" requires valid data Does this or does this not work TIA, Bob Tag: .NET Compact Framework Webservice GPRS Connection Smart Device Development
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    - Getting a web with cookie How to getting the web with cookie and post some data to the server with the cookie the .net CF seems not support the cookie..... Tag: .NET Compact Framework Webservice GPRS Connection Smart Device Development
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    - httpwebrequest hi im trying to convert java to c# now. trying to understand how to change this to C#. first problem that i have met. in java, httpConnection has the setRequestProperty and get HeaderField. however i cant find the equivalent for these in c# for cookie. conn. setRequestProperty ( "cookie" , mSession); String cookie = conn. getHeaderField ( "Set-cookie" ); second problem that i have met. i have changed the getResponseCode() to getResonse() in C#. but i got an error Cannot implicitly convert type 'System.Net.WebResponse' to 'int'. also i am trying to convert HttpConnection.HTTP_OK, dataInputStream and OpenInputStream to c#, which i could nto find an equivalent. int rc=0; //conn.getResponseCode(); try{ rc=conn.getResponseCode(); }catch(Exception e) {System.out.println(e);} System.out.println("rc have already"+conn.getResponseCode()); if( rc==HttpConnection.HTTP_OK ) { StringBuffer text=new StringBuffer(); try{ DataInputStream din=new DataInputStream (conn. openInputStream ()); int n=din.readInt(); while(n-->0) { text.append(din.readUTF()); text.append(' '); } } Tag: .NET Compact Framework Webservice GPRS Connection Smart Device Development
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    - Redistribution of .net framework 2.0 No, one installer should do. Consider waiting for previous installation to complete before starting next one. Or, better yet, register INIs with CeAppMgr and then install them in one step. See MSDN on how to do that. Tag: .NET Compact Framework Webservice GPRS Connection Smart Device Development
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    - Cannot connect to web service on my local machine... The device is connected and cradled. As for the NE2000 card, I have not changed any default settings on the emulator. The problem seems to not be exclusively with the emulator itself because as I mentioned, I get the same problem when trying to browse to the web service through IE on my desktop as well. Any idea what could cause this sort of intermitant problem where at one point it will connect and then it will not and yet at another point it will connect but it will take a very very long time to do so I am being clear enough Really stuck here. Tag: .NET Compact Framework Webservice GPRS Connection Smart Device Development
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    - VS .NET to VS.NET 2005 OK, so date is stored as string in the DataSet, not as DateTime. Then you should not cast but should use ParseExact() with format you want: DateTime.ParseExact( "2006.01.01" , "yyyy'.'mm'.'dd" , Nothing ) Tag: .NET Compact Framework Webservice GPRS Connection Smart Device Development
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    - Out of memory exception on WinCE5.0 You have a memory leak which you should find and eliminate; forcing GC won’t help you at all. Finding leaks is not easy. I would suggest using “divide and conquer” approach: remove significant part of your application and run the rest, see if memory is leaking and at what rate. You can call GC .GetTotalMemory( true ) to monitor managed memory allocation and P/Invoke GlobalMemoryStatus() (please search if you need a signature) to include native allocation as well. If leak stopped or reduced part of the code you’ve eliminated was leaking. Divide that part to find specific parts. Things to watch for: - Not calling Dispose() on anything what has it (Bitmaps, forms, controls, components, SQL CE and SQL Client objects and so on). - Complex data binding: make sure to set DataSource of list controls and DataGrid to null/Nothing as soon as you no longer need them. - Native interop: make sure to release memory allocated on the native side or unpin objects pinned on managed side. Tag: .NET Compact Framework Webservice GPRS Connection Smart Device Development
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    - Get Camera Data without showing on the screen? Hello... I want to write an application for a pda which uses the camera. I need the current camera data, i.e. video stream or only images. The problem is that I don't want to see the current video on the screen! Is this possible with the new Camera Capture API for Windows Mobile 5.0 Can I capture the video data without showing the video --Jacqueline. Tag: .NET Compact Framework Webservice GPRS Connection Smart Device Development
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    - C++ wrapping around C# Hello everyone, I've just developed a C# application for PocketPC and it works perfectly. What I would like to do know is to convert this app into ActiveX to embedded it in a website. I've been reading the forums and blogs these days and I found some info, but nowadays I'm not sure whether it is possible or not. Besides, according to what I read <a href =" http://blogs.msdn.com/iemobile/archive/2007/06/20/ie-mobile-support-of-activex.aspx"> here </a> each time a new user visit the website a CAB file has to be downloaded and installed... Thanks in advanced, Enrique Tag: .NET Compact Framework Webservice GPRS Connection Smart Device Development
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    - Battery Backup Hi, Josepen Yes, there is a SystemState.PowerBatteryBackupState which will have the value of BatteryState.NotPresent if there isn't a backup battery. Code Snippet if (SystemState.PowerBatteryBackupState == BatteryState.NotPresent) { //Backup battery does not exist. } Regards Tang Tag: .NET Compact Framework Webservice GPRS Connection Smart Device Development
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    - Listbox not responding properly to two subsequent clicks Please help me! I haven't found anything regarding this problem on the internet. If you are using a listbox in .NET compact (only true for compact!) you'll notice sort of a delay between two subsequent clicks selecting different items. The selection does not update if you do this too fast - the click event gets lost. It's really awful having to wait between to clicks! The problem also is showing up with listviews in detail view. How can you avoid this behavior Note that it's not an performance issue since there are only 3 items in the listbox. Try it with the emulator by creating a project, putting a listbox in the form and hit run. Then select an item in the listbox and almost instantly switch to an other one (that is a common practice in case you hit the wrong item at first). Thanks for your help, Mark Tag: .NET Compact Framework Webservice GPRS Connection Smart Device Development
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    - Problem with a flyout using click to show/hide it Hi th ere, my gadget is a simple button and with a click it shows the flyout and with another click on the button it hides the flyout. so i made something like this: Code Snippet <div id="updateRadio" border="none" style="position:left;" onclick="if (System.Gadget.Flyout.show == true){ System.Gadget.Flyout.show = false; } else System.Gadget.Flyout.show = true; "> <g:image src="button.png"/> </div> the problem is that when i click it shows the flyout normally but to close it i need to click 2 times on the button. it seems that after one click the gadget take the focus and with the second click it runs normally. am i right and what can i do to solve my problem thx Tag: .NET Compact Framework Webservice GPRS Connection Smart Device Development
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    - resize the gadgets by default We're seeing some gadgets resize incorrectly in IE6 in Spaces (the size change events don't always fire, so the resize logic never runs). Calling module.resize() explicitly after you draw content will now actually resize the frame in some cases where we lose that event. You should see a real change in behavior in those cases. Tag: .NET Compact Framework Webservice GPRS Connection Smart Device Development
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    - File operations What's the best way to check if a file exists in a gadget subfolder And what's the best way to get a list of all files within a subfolder Andy Tag: .NET Compact Framework Webservice GPRS Connection Smart Device Development
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    - VB.NET WM 5 Alpha Blend function won't draw I am trying to use the WM5 AlphaBlend() function to add transparency to an image. I found this link that contains a great example in C#. http://blogs.msdn.com/chrislorton/archive/2006/04/07/570649.aspx#571734 When I download and run the C# example it works fine. I converted it to VB , but now the image does not display. I don't get any errors returned, but nothing is drawn. Here is my code. Any help would be appreciated. Imports System.Reflection Public Class Form4 'Dim constantAlphaImage As Bitmap Dim constantAlphaImage As Image Protected Overrides Sub OnPaint( ByVal e As PaintEventArgs) ' Load the image to use with the AlphaBlend API. Dim path As String = System.IO.Path.GetDirectoryName(Assembly.GetExecutingAssembly().GetName().CodeBase) constantAlphaImage = New Bitmap(path + "\blendme.bmp" ) ' AlphaBlend takes two HDC's - one source and one destination. Here's the source. Using gxSrc As Graphics = Graphics.FromImage(constantAlphaImage) Dim hdcDst As IntPtr = e.Graphics.GetHdc() Dim hdcSrc As IntPtr = gxSrc.GetHdc() Dim blendFunction As New BlendFunction() blendFunction.BlendOp = CByte (BlendOperation.AC_SRC_OVER) ' Only supported blend operation blendFunction.BlendFlags = CByte (BlendFlags.Zero) ' Documentation says put 0 here blendFunction.SourceConstantAlpha = CByte (128) ' Constant alpha factor blendFunction.AlphaFormat = CByte (0) ' Don't look for per pixel alpha PlatformAPIs.AlphaBlend(hdcDst, Left, Top, Width, Height, hdcSrc, _ 0, 0, Width, Height, blendFunction) gxSrc.ReleaseHdc(hdcSrc) ' Required cleanup to GetHdc() ' Required cleanup to GetHdc() e.Graphics.ReleaseHdc(hdcDst) End Using End Sub End Class Imports System Imports System.Collections.Generic Imports System.Text Imports System.Runtime.InteropServices Public Structure BlendFunction Public BlendOp As Byte Public BlendFlags As Byte Public SourceConstantAlpha As Byte Public AlphaFormat As Byte End Structure Public Enum BlendOperation As Byte AC_SRC_OVER = 0 End Enum Public Enum BlendFlags As Byte Zero = 0 End Enum Public Enum SourceConstantAlpha As Byte Transparent = 0 Opaque = 255 End Enum Public Enum AlphaFormat As Byte AC_SRC_ALPHA = 1 End Enum Public Class PlatformAPIs <DllImport( "coredll.dll" )> _ Public Shared Function AlphaBlend( ByVal hdcDest As IntPtr, ByVal xDest As Int32, ByVal yDest As Int32, ByVal cxDest As Int32, ByVal cyDest As Int32, ByVal hdcSrc As IntPtr, _ ByVal xSrc As Int32, ByVal ySrc As Int32, ByVal cxSrc As Int32, ByVal cySrc As Int32, ByVal blendFunction As BlendFunction) As Int32 End Function End Class Tag: .NET Compact Framework Webservice GPRS Connection Smart Device Development
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    - Visual Studio 2005 With WM5 I've just upgraded to a WM5 pocket PC, and basically, do I need the WM5 SDK I mean, in Visual Studio 2005, am I still OK to make programs using the Windows Mobile 2003 wizards and deploy using the Deploy to Windows Mobile 2003 device stuff Or do I need to install the WM5 devkit Tag: .NET Compact Framework Webservice GPRS Connection Smart Device Development
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    - how to load dll file in smartphone? Christine, Your problem is similar to issue with OpenCV.dll you faced. You're trying to load a DLL built for desktop onto a Smartphone/pocket pc. This will not work. You've to ask the DLL manufacturer to provide you with compatible DLLs for SP/PPC. Manav Tag: .NET Compact Framework Webservice GPRS Connection Smart Device Development
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    - resource assembly error - System_SR_ENU_wm.cab installed. Probably that was V1 CAB. As I pointed out above, it's a common mistake since CAB names are the same and few developer are paying attention to “1.0” in "etc" part of the path. CAB name will be changed to contain version for next NETCF release to avoid confusion. Tag: .NET Compact Framework Webservice GPRS Connection Smart Device Development
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    - Help : Gadget Building I have found! there was indeed an error in my xml file, I certainly did while editing my work ^^ Thank you very much for your help Tag: .NET Compact Framework Webservice GPRS Connection Smart Device Development
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    - install root certificate on disk image using platform builder? Hi Debotah If you're able to build your own OS image - yes this is the way to go. You could be using the Windows 'Certificate' MMC Snap-in (certmgr.msc) You'd basically import all root certificate you want on your device to the 'Personal' store. Then select all certs and export them as a p7b file. this and this article should help to get the job done. Michael Tag: .NET Compact Framework Webservice GPRS Connection Smart Device Development
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    - submission rejection: "vulnerable to malicious attacks" Hi rumremix. Even innerHTML can be problematic because there is no OM function to scrub the data without writing your own. It is better if you use innerText, etc. Take a look at the article that Michael Howard and David Ross wrote: http://msdn2.microsoft.com/en-us/library/bb498012.aspx If you continue to have problems please feel free to send me mail directly (chrisbu at microsoft.com). Thanks. Tag: .NET Compact Framework Webservice GPRS Connection Smart Device Development
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    - iPAQ screen problem!! Hi everyone!!! I have a .NET application that is working just fine with SQL Mobile, Synchronization is working and I thought everything was OK but.... In most iPAQs looks fine, but some of my users have hx4700 model. In this case for all this users, when application starts, it shows only in the firts quarter of the screen, so with all the components appear one on top of the other. Does anyone know why this happen How could i fix it Thanks in advance Jerry Tag: .NET Compact Framework Webservice GPRS Connection Smart Device Development

millie_w

Hi Guys,

I know that by calling a webservice, the connection is automatically setup. Is it possible to force the call to use a specific connection, one that has been setup using the connection manager I would like to be able to control the connection and to close it after use. I have tried using connection manager to first set up a connection and then close it, but it seems that the call to use the webservice creates another connection. Is this correct Or does it grab the existing connection and say "hey, this is mine now" and have exclusive use of it

Many thanks,

Millicent.

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Re: .NET Compact Framework Webservice GPRS Connection

besharah

Dear millie_w ,

Why do you need to close the connection(it is Expensive TO CREATE NEW OBJECT)

, by default the connection will be in the pool, everytime you need the connection it will bring it from the pool.

best regards,

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