combo box dropdown via code?

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- Previous
  - 1
    - progress bar lockup Hi, I posted this in the dotnet.csharp forum, but was told to come here to the CF forum This code does not run, the application throws when i call Invoke; private delegate void DelegateStarter(); private void CycleProgressBar() { int x = 0; while( true ) { progressBar1.Value = x; x += 10; if( x > 100 ) x = 0; Thread.Sleep(200); } } private void button1_Click(object sender, System.EventArgs e) { DelegateStarter dls = new DelegateStarter( CycleProgressBar ); progressBar1.Invoke( dls ); // *** THROWS *** } Appereently, a progressbar cannot be updated on the main thread, so i need to Control.Invoke to do the updating, but cant get it working. Can someone help me? Joe Tag: combo box dropdown via code? Tag: 61579
  - 2
    - Help with locating database Hey Everybody, I am running a C#code that creates a database called Mobile.sdf SqlCeEngine engine = new SqlCeEngine ("Data Source = Mobile.sdf"); engine.CreateDatabase (); Now I am not able to locate the actual database on my PC. Where will this be stored? Thanks Sats Tag: combo box dropdown via code? Tag: 61574
  - 3
    - Bitmap() constructor fails with C# Bitmap constructor is causing an exception and the application exits. The is under WinCE5.0, .netCF and deployed with VS2003. Anyone else seen and / or solved this problem? Joe Tag: combo box dropdown via code? Tag: 61569
  - 4
    - Nasty Error Hi I've an Application on my PocketPC Running. Everything worked fine for weeks. Now I wanted to try some installation things. and the program doesn't start anymore these lines of code are producing the error InitializeComponent(); Icon icon; icon = new Icon(this.GetType().Module.Assembly.GetManifestResourceStream("smartCRMPDA13.ico.remote.ico")); try { // Here it Crashes! The Icon is set as embedded source and when I // COpy the application folder to an other PPC everything works fine! this.ImageList16px.Images.Add(icon); } catch(Exception oErr) { // The Exception only says "Exception".... program.ShowMessageBox(oErr.Message,"Fehler",2); } So any hints? I've absolutly no Idea whats going wrong here.... Tag: combo box dropdown via code? Tag: 61564
  - 5
    - create Virtual Com Port Windows CE 3.0 Can anybody tell me how to create Virtual COM ports for PocketPC with C# ? Tag: combo box dropdown via code? Tag: 61563
  - 6
    - 32Mb is not enough memory for App Hi all, From what I've read each CE app can only use 32Mb of memory, is there anyway to expand this? Our App is rather large and demanding, and sometimes the app runs out of memory, usually while doing Sql-stuff. I've looked into VirtualAlloc, but firstly I don't /really/ understand it, and secondly, it seems to makes no difference in our App. Below is an app I whipped up to test memory usage. On my device it runs 39 times, then throws an out of memory exception both with, and without the VirtualAlloc code commented-out. [VB.NET] Public Class Form1 Inherits System.Windows.Forms.Form Public Shared Sub Main() Application.Run(New Form1) End Sub <System.Runtime.InteropServices.DllImport("coredll")> _ Private Function VirtualAlloc(ByVal lpStartAddr As IntPtr, ByVal size As Integer, ByVal flAllocationType As Integer, ByVal flProtect As Integer) As IntPtr End Function <System.Runtime.InteropServices.DllImport("coredll")> _ Private Function GetLastError() As Integer End Function Private MEM_RESERVE As Integer = &H2000 Private MEM_COMMIT As Integer = &H1000 Private PAGE_READWRITE As Integer = &H4 Private PAGE_NOACCESS As Integer = &H1 Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load Me.Visible = True Application.DoEvents() Dim offset As Integer = 1 'Dim x As IntPtr = Me.VirtualAlloc(Nothing, 2 * 1024 * 1024, MEM_COMMIT Or MEM_RESERVE, PAGE_READWRITE) 'If x.ToString() = "0" Then ' MessageBox.Show(Me.GetLastError().ToString()) 'End If Try While True Dim p As New PictureBox p.Bounds = New Rectangle(offset * 8, offset * 8, 25, 25) p.Image = New Bitmap(500, 700) Me.Text = offset offset += 1 Application.DoEvents() End While Catch ex As Exception MessageBox.Show(ex.ToString()) End Try End Sub End Class [/VB.NET] Thanks for reading, and I hope someone is able to help/advise me Tag: combo box dropdown via code? Tag: 61560
  - 7
    - OpenNetCF DateTimePicker control-CustomFormat I cannot assign a custom date format for the OpenNetCF DateTimePicker control, it just seems to ignore the setting. I need the setting to be "dd/mm/yy", but it defaults to "mm/dd/yy" I have the following code in my form's Load event... Dim mPicker As OpenNETCF.Windows.Forms.DateTimePicker mPicker = New OpenNETCF.Windows.Forms.DateTimePicker mPicker.CustomFormat = "dd/mm/yy" mPicker.Format = OpenNETCF.Windows.Forms.DateTimePickerFormat.Custom mPicker.Bounds = New Rectangle(40, 6, 100, 20) Me.Controls.Add(mPicker) I am using v1.4 of OpenNetCF, I have read threads with other guys having the same issue, but I have not seen any fixes.. TIA Paul Newton Tag: combo box dropdown via code? Tag: 61547
  - 8
    - moving and copying files from PC to PDA and vice versa Hi, Presently i am working on PDA device.how can i configure activesync to PDA? I was tried by giving the Serialport and COM1 as my key value pairs in registry,but it was not working.and also i am working on PocketPC 2002 Emulator , VS.NET 2003 and Activesync 3.7. please help me.It is urgent. Thanks & Regards, Prasanna Kumar Tag: combo box dropdown via code? Tag: 61546
  - 9
    - String from unmanaged DLL to managed app On Windows CE 5.0 and CF2.0 a try to send a string from a unmanaged DLL to managed app: extern "C" __declspec(dllexport) void GetError(char *pErrorMessage) { strcpy(pErrorMessage, "Hello C# World!"); } [DllImport("TestDll.dll")] internal static extern void GetError([MarshalAs(UnmanagedType.LPStr)] StringBuilder errorMessage); StringBuilder message = new StringBuilder(500); GetError(message ); I allways get an error 'NotSupportedException'. Thanks for help! Markus Tag: combo box dropdown via code? Tag: 61545
  - 10
    - Help with deceiding on best solution Hello all, I am about to embark on a reasonably large project - I operate an energy management business and need to install remote controls at a large number of my clients sites. My plan is to utilise windows CE devices at the clients sites - they should be low in cost, reliable (as they have no moving parts) and the development process should be relatively straight forward - it should also make the communications to the devices simpler and allow me to extend the functionality well into the future. The devices will have a number of communication options - these include GPRS modem, clients internet connection via wireless of RJ45 - or GPS modem. The area that I still need to finalise is the method of communication and the technology to use. The following will be true 1. Communications will need to be over the internet 2. The internet connection will often use a clients internet connection therefore there will be no ability to have a fixed IP address on the devices 3. It must efficient - if the communication is over GPRS the costs of transmitting data will be high 3. There will be a large number of devices - the system needs to be scalable to 100,000's of devices 4. The remote devices will need to send information to our office 5. We will need to be able to send info to the devices with a very small delay 6. Communications must secure - it will be critical that no one can hi-jack and control the devices I have investigated the new WSE 3 and this sounds like a good option for communication?? It appears to have the security requirements and easily scalable to manage the communications for this many devices - can windows CE take advantage of the security features of WSE 3. Any help from those that may have some experience in these matters would be very appreciated. -- matthew Tag: combo box dropdown via code? Tag: 61542
  - 11
    - ANN: Localized Framework 2.0 .NET Compact Framework 2.0 Localized Versions are Available Now http://blogs.msdn.com/mikezintel/archive/2005/11/23/496123.aspx .NET Compact Framework 2.0 Redistributable http://www.microsoft.com/downloads/details.aspx?FamilyID=9655156b-356b-4a2c-857c-e62f50ae9a55 -- Thomas Scheidegger - MVP .NET - 'NETMaster' http://www.cetus-links.org/oo_dotnet.html - http://dnetmaster.net/ Tag: combo box dropdown via code? Tag: 61541
  - 12
    - Setup moans because of newer version I'm writing software for the QTek 2020 at the moment which is running Pocket PC Version 4.20.0. However we're just starting to rollout the same software on the XDA II running Windows Mobile 2003 Second Edition version 4.21.1088. The software actually works OK however when it tries to install SQLCE and SP3 for the .NET Framework it's coming up saying "this software was written for a previous version of software, and may not work, do you want to continue with the install" Is there anyway to get around this? Many Thanks Rob Tag: combo box dropdown via code? Tag: 61540
  - 13
    - Setups Hi There how do you create your setups ? My Target is to get one setup which includes all runtimes and installs them if necessary. The Cab files generated by VS don't include any runtimes :-/ (OpenNETCF, SqlServerCe,CF,...) Is it possible to "merge" some cab files ? Tag: combo box dropdown via code? Tag: 61534
  - 14
    - GPIO ports i have a panel pc and it has Win CE 4.2 OS on it. I need to send data from GPIO ports . I found stg. about VirtualCopy and VirtualAlloc but not so clear how to do that. I am using VB.NET on Compact Framework 1.0 while coding. Would someone give me some source or advice about this? Thanx in advance Tag: combo box dropdown via code? Tag: 61531
  - 15
    - WM_SIZE and WM_SETTINGCHANGE not fired in WinCE.NET Hi to all NG. I'm unable tu understand why in WinCE 4.2 while rotating the screen, the WM_SIZE and/or WM_SETTINGCHANGE messages are not fired from the system (so I can't get the Resize event). In this way I can't understand when redim my form to the new screen size. I've seen that neither Word or Explorer redim theyself (and they are _original_ Microsoft products, so I can think that they are well made). Can be that WinCE isn't designed for real-time screen rotating (but only during CE startup -> once a boot) while Windows Mobile yes? Is this the reason? I can rotate the screen directly from my application, calling the ChangeDisplaySettingsEx. In the MSDN http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wceshellui5/html/wce50lrfChangeDisplaySettingsEx.asp you can see that calling that API a WM_SETTINGCHANGE must be fired, but I can't get that message neither in my C# app (using Microsoft.WindowsCE.Forms) neither in a simple C++ application. Any suggest? Thanks Massimo Tag: combo box dropdown via code? Tag: 61530
  - 16
    - OpenNETCF HTMLViewer-Control and Hyperlinks Hello! I use the HTMLViewer-Control from OpenNETCF on a WINCE-device. I want to create a hyperlink, which has no line under the Hyperlink-Text. I use the following HTML-Code, which I assign the Source-Property of the HTMLViewer-Control. Normally with 'style="text-decoration: none"' you can force no line. It works fine on PC and with IE on the device but not with the HTMLViewer. Has anyone an idea what is wrong? <html> <head> <body> <a href="www.web.de" style="text-decoration: none">My Hyperlink</a> </body> </html> Many Greetings Dirk Tag: combo box dropdown via code? Tag: 61529
  - 17
    - Color-picker dialog for CF 2.0? Does anyone know of a color picker dialog for CF2.0? Thanks in advance, Terry Tag: combo box dropdown via code? Tag: 61527
  - 18
    - Consider app.config remapping of assembly Folks, I have a Smartphone Solution with two Projects: 1) Common References, among others System and System.Windows.Forms 2) Foobar References, among others: Common, System, and System.Windows.Forms The Common Project compiles with no warnings. Foobar, on the other hand, compiles with the following warnings: Consider app.config remapping of assembly "System.Windows.Forms, Culture=neutral, PublicKeyToken=969db8053d3322ac, Retargetable=Yes" from Version "1.0.5000.0" [] to Version "2.0.0.0" [C:\Program Files\Microsoft Visual Studio 8\SmartDevices\SDK\CompactFramework\2.0\v2.0\WindowsCE\System.Windows.Forms.dll] to solve conflict and get rid of warning. Consider app.config remapping of assembly "System, Culture=neutral, PublicKeyToken=969db8053d3322ac, Retargetable=Yes" from Version "1.0.5000.0" [] to Version "2.0.0.0" [C:\Program Files\Microsoft Visual Studio 8\SmartDevices\SDK\CompactFramework\2.0\v2.0\WindowsCE\System.dll] to solve conflict and get rid of warning. Each Project is referencing EXACTLY THE SAME DLL (V2.0.0.0). Nothing is referencing V1.0.5000.0 DLLS. In an attempt to fix this, I created new Projects, added the items from the original Projects, re-added the References, and then removed the original Projects from the Solution. The first time I built the Solution there were no problems. Subsequent builds throw the error message. In another attempt to fix this, I created a foobar.exe.config and added this: <assemblyBinding> <dependentAssembly> <assemblyIdentity name="System.Windows.Forms" Culture="neutral" PublicKeyToken="969db8053d3322ac" Retargetable="Yes" /> <bindingRedirect oldVersion="1.0.5000.0" newVersion="2.0.0.0" /> </dependentAssembly> <dependentAssembly> <assemblyIdentity name="System" Culture="neutral" PublicKeyToken="969db8053d3322ac" Retargetable="Yes" /> <bindingRedirect oldVersion="1.0.5000.0" newVersion="2.0.0.0" /> </dependentAssembly> </assemblyBinding> This has no affect on the build; the error messages remain. I am at a total loss. Any suggestions are gratefully appreciated. Thanks. Joel Finkel finkel@sd-il.com Tag: combo box dropdown via code? Tag: 61526
  - 19
    - Smart Device / Web Service development on the road? I am in the process of developing a CF2.0 based app using VS2005. The app is a client for a desktop software package and I am using web services to communicate from the device to the desktop. I spend some amount of time on the road with no network connection to my laptop, but I would like to be able work on this application. This would require setting up the emulator or a synced device with a network connection. I am wondering how to set up this networking scenario because with no wireless or wired network connection I have no ability to assign an IP. Am I missing something simple? Is there a way to set this up? Thanks! Tag: combo box dropdown via code? Tag: 61525
  - 20
    - any midi library on CF 2.0 ? i'm using c# cheers Tag: combo box dropdown via code? Tag: 61524
  - 21
    - Combining Laszlo and .net compact framework Hi, Is anybody worked with Laszlo as the user-interface in .net compact framework applications ? If yes, pls guide me . Thanks, Tag: combo box dropdown via code? Tag: 61521
  - 22
    - Rs232 access under Netcf I am migrating a set of Apps from the desktop to Netcf. One uses Rs232 access. It uses the techniques outlined in the Msdn article " Use P/Invoke to Develop a .NET Base Class Library for Serial Device Communications" which includes the classes CommBase and CommLine. Unfortunately the CreateFile() does not work. Do you have any idea if the approach specified in the article can be made to work at the Netcf level. If not is there another alternative. Thanks. -- John Olbert Tag: combo box dropdown via code? Tag: 61518
  - 23
    - CF 2.0 deployment I didn't have much luck on the PPC.developer board. I thought I would try here too :P I have an app I want to install on PPC2003 (which does not support CF 2.0). When I make a CAB in VS 2005 is there something I can check or enable to allow the CF 2.0 to install with my app or do I have to install them seperatly? JR Tag: combo box dropdown via code? Tag: 61514
  - 24
    - About mscoree.stat Hi: Someone knows where I can find the exact definition of all counters of mscoree.stat file (<myapp>.stat)? Regards Tag: combo box dropdown via code? Tag: 61510
  - 25
    - MissingMethodException in SmartPhone I've created a new application that contains 2 projects A SmartPhone project and a Class library project. I'm still on the Emulator I've created few classes in the Class library project and then tried to create instances of those classes in the Phone Project The problem is that I can create the class but when I call one of it's functions I get "MissingMethodException", which is weird because I know the function is there Is it wrong to use Class library project in SmartPhone application? Should I stick to one project? Can any one tell me what the problem might be One last remark, The classes I've create are inherited from base class, I hardly think that is the problem but than, hay, you can never know thanks Tag: combo box dropdown via code? Tag: 61502
- Next
  - 1
    - Drawing and signature capture module Hi, In a .NET CF application, running on Pocket PC WM2003SE, is it possible to integrate a drawing capture module allowing users to design schemas and to save them as bmp files ? For signatures capture, I already saw some examples on the web, but nothing for drawing / erasing. Is it necessary to develop such a feature from scratch, or is it possible to integrate some existing controls ? Thanks a lot for your help. Regards, Samel Tag: combo box dropdown via code? Tag: 61499
  - 2
    - WM5 Cab problem I have an application that references Ver 1.2 of OpenNetCF. When I create my cab file and install it to a new device it works fine as long as i already installed OpenNetCF. Or at least it works on WM2003. But today I got an Axim x51 with WM5. Now when I try to install my application from a cab file, it wont even copy the files to the directory. It says that it installed correctly, but it doesnt even create the program directory. Ive slowly been deleting things from the cab file to find out what is hanging it up, and when i delete the reference to OpenNetCF it installs fine. Just wondering if anybody else has had this problem. Ive installed OpennetCF. And if i manually create my program directory and copy the files in by hand, the program runs perfect. Its just the cab file that wont deploy when OpennetCF is included in my references. I would hate to have to strip out my opennetCF code, cause its a great tool. Thanks, Joe Tag: combo box dropdown via code? Tag: 61497
  - 3
    - Start witout debugging through macro Hi, What change should I make to the Alex's 'macro (http://tinyurl.com/9zotl) so that it lauches the application withou debugging support (equivalent to ctrl+F5). Thanks -- Dinesh Baja ----------------------------------------------------------------------- Dinesh Bajaj's Profile: http://www.hightechtalks.com/m25 View this thread: http://www.hightechtalks.com/t229223 Tag: combo box dropdown via code? Tag: 61492
  - 4
    - New MSDN Articles available Two new articles by OpenNETCF authors went up in MSDN yesterday: Device Debugging and Emulation in Visual Studio 2005 http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnppcgen/html/Device_Debug_VS2005.asp Learn about how to use the Visual Studio 2005 Device Emulator and debugger for smart device projects-managed, native, and mixed. (20 printed pages) --------------------------------------------------------- Using Visual Studio 2005 to Design User Interfaces and Databases for Device Applications http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnppcgen/html/UI_Data_Designers_NETCF2.asp Learn about what's new in Visual Studio 2005 for user interface and database design to use for .NET Compact Framework version 2.0 applications. (36 printed pages) -- Chris Tacke Co-founder OpenNETCF.org Are you using the SDF? Let's do a case study. Email us at d c s @ o p e n n e t c f . c o m http://www.opennetcf.org/donate Tag: combo box dropdown via code? Tag: 61486
  - 5
    - Creating control from a string Hi, How can I create a control whose type is determined at run-time and i stored in a string? I tried Activator.CreateInstance, but it didn't work. I am not eve able to get the control type from the Type.GetType method. Please help. Thanks -- Dinesh Baja ----------------------------------------------------------------------- Dinesh Bajaj's Profile: http://www.hightechtalks.com/m25 View this thread: http://www.hightechtalks.com/t229217 Tag: combo box dropdown via code? Tag: 61484
  - 6
    - Windows Mobile app communicating with a Service I was wondering if it is possible to create a Windows Service in C# and then have a Window Mobile app send requests / communicate with that service? What I would like to be able to do is send requests from the Mobile app to the service, the Mobile app would go to wait state, the Service would execute a threaded query or non-query against a non-SQL Server database, then the service returns information back to the Mobile app. If I can get this working, there would be possibly 30 - 40 mobile devices running simultaneously requesting from the service. Is this something that is possible? If so, where do I need to start as far as research? Thanks, David Tag: combo box dropdown via code? Tag: 61481
  - 7
    - Developing for Windows Mobile 5.0: State of the art Hi! I am starting development for Windows Mobile 5.0. I have received and intalled the "Windows Mobile 5.0 Developer Evaluation Kit" including Visual Studio .NET 2005 Beta 2. I have just received the Windows Mobile 5.0 device and it has not .NET CF 2.0 installed... So I am trying to install the up to date version of .NET CF on my device so that I can start developing. While browsing the web for this up to date version I have been confused by the many versions of the .NET Framework available. I would really appreciate it if someone could clarify the situation for me. I have found that the .NET 2.0 and .NET CF 2.0 final are available. However, as I am using Visual Studio 2005 Beta 2 it seems that I can't use these versions, I have to stick to the .NET 2.0 Beta 2 and .NET CF 2.0 beta 2. Is that correct? Finally, I have seen that Visual Studio 2005 Final has been launced on 11/7. I have been through the license of Visual Studio 2005 Beta 2 a long ago, and as far as I can remember users must sease using it as soon as the final version is out. Therefore can I still use my Beta 2 version today ? or do I have to order now the final version? Thanks a lot, your clarifications will be useful. Regards, Lionel Reyero Tag: combo box dropdown via code? Tag: 61479
  - 8
    - Protecting form controls from screen touch!! Hello, I want to be able to keep any underlying controls on my ppc application from activating when the user taps the screen to turn on the backlight. Does anyone have any VB code that does this? Thanks in advance, nb ------------------------------------------ Noble D. Bell AgForest Partners, Inc. Tag: combo box dropdown via code? Tag: 61478
  - 9
    - GPS API I am going through the managed GPS example and trying to convert all the bits to VB.NET but I have a couple of translation problems if anyone can advise: for (int viewIndex = 0; viewIndex < inViewSatellites.Length && found == null; viewIndex++) (no idea what the && found == null bit does) public bool SatellitesInViewValid { get { return (dwValidFields & GPS_VALID_SATELLITES_IN_VIEW) != 0; } } I have translated this as: Public ReadOnly Property SatellitesInViewValid() As Boolean Get Return CType((dwValidFields And GPS_VALID_SATELLITES_IN_VIEW), Boolean) End Get End Property but don't understand what the !=0 is doing???? And finally in a structure there is a property declared as: public int this[int value] How does this translate?? Thanks. Tag: combo box dropdown via code? Tag: 61477
  - 10
    - Callback from native to .net in CF2.0 Is it possible in CF2.0 to create a callback from native code to the .net application? Thanks! Markus Tag: combo box dropdown via code? Tag: 61475
  - 11
    - kill process & Overflow Exception (VB net) cf 1.1 I'm facing with killing a process by its name. I converted some code found on the net from c# to vb and it works very well except for some pid values. It gives me Overflow exception '---- Private m_ihandle As IntPtr Public th32ProcessID As System.UInt32 Public ReadOnly Property PID() As System.UInt64 Get Return Convert.ToUInt64(th32ProcessID) End Get End Property '... m_ihandle = New IntPtr(Convert.ToInt64(peCurrent.PID)) ' <-- System.OverflowException - OverflowException '---- It's funny because Convert.ToInt32(peCurrent.PID) gives me a "System.OverflowException - OverflowException" so I changed it with Convert.ToInt64(peCurrent.PID) it retrieve 2799898626 - Long The matter seems to be with Intptr constructor but, according to MSDN, It must accept long argument. Has anyone an idea about it? Thanks Fabio Tag: combo box dropdown via code? Tag: 61473
  - 12
    - Which VS.NET 2005 version to download I'm MSDN Universal Subscriber and switched to Team Edition for Developers in order to download the latest VS.NET 2005 version. What a mess the hellish MSDN Subscription is! I can see Professional Edition 2005 with 10/28/2005 release date and Team System Release Candidate with a newer release date. Which version is the latest stable? That is, MS announced few weeks ago that MSDN Universal Subscribers could download VS.NEt 2005 final version while DVD is shipped to subscribers. I think they talked about Professional edition but..........I would like to hear you, developer's opinion. Thanks. Tag: combo box dropdown via code? Tag: 61463
  - 13
    - Digitally signing CABS Hi, How is everyone else working with digital signatures in cabs. My understanding is if I sign it then it will only work on smartphones, or with AS4. If not then it makes the cab useless... Is everyone producing two cabs, or have you come across another solution? Mike Tag: combo box dropdown via code? Tag: 61462
  - 14
    - USB event notifications Hello, I'm new to .NET development in general, and I can't seem to find the answers I need anywhere else. Is there a way in the compact framework to detect the insertion/removal of a USB memory stick? I have C# code which needs to inform other modules of these events (specifically flash memory devices; I'm not interested in other USB device insertions). I also need to be able to determine the path to the device (assuming I can still treat it as a regular drive) and perform read/write operations. I've seen this question posted on other groups, but they seem to all have answers based on the use of WMI and the System.Management API of the full .NET framework. Am I right in saying that this doesn't exist for the compact framework? Any answers, links to code samples, other discussions or documentation would be greatly appreciated. Thanks, Ross Tag: combo box dropdown via code? Tag: 61460
  - 15
    - Auto reconnect to a WiFi connection I need to make an application (on a Pocket PC 2003) that automaticaly reconnect when a connection is available. The application is connected live to a SQLServer 2000 and when i get a broken connection, It shoud display a message to the user "Network connection lost, Reconnect?" Ok = Try to connect to the network (available configured AccessPoint) an perform operation Cancel = discard operation an wait until user try again (the message will loop until success or cancel) The application is destinated to verry novice user and should be the most transparent as possible... down want them to get to the device settings... I'have tryed many things and nothings seem to work! What i'm doing wrong... is it my device? Is i understand something wrong? The pocket PC is a DELL AXIM 2 Wifi acces point (MYACCESSPOINT no WEP KEY and MYACCESSPOINT2 with WEP KEY) developping in C# using Visual Studio 2003 Compact Framework 1.0 with latest service pack. When i start Internet explorer, it automaticaly connect one of my prefered access point! I also notice that where i am doing test there is a lot of not configured device (and should hide the connect to a new network wizard) == First setup: == I configure both as prefered devices and connect to one acces point - I write a simple apps that open a connection on a SQL server on the network - I goes out of scope the two acces point - I came back near the acces point and wait... (1 minute and more) - Try to re open the connection an get an error like "server does not exists" == Second setup: == I read a bit an try the fallowing (with OpenNETCF), after the error "server does not exists" i call my function TakeConnection() but the code never break... so never get connected.. ;o( private void TakeConnection() { ConnectionManager oCon = new ConnectionManager(); foreach( DestinationInfo d in oInfo ) { bool connected = false; if(d.description == "work") { oCon.Connect(d.guid, true, ConnectionMode.Asynchronous); while(!connected) { if(_oCon.Status != ConnectionStatus.Connected) { System.Threading.Thread.Sleep(1000); continue; } connected = true; } } } } == Third setup: == I keept a member instance of ConnectionManager and call a function like DoConnection at the form initialisation. (same as TakeConnection with the global member) The function also register to events OnConnect, OnDisconnect, OnConnectionFailed, OnConnectionStateChanged... When i start the app, i got the OnConnect, but when connection goes out of my access point, never got disconnected or anythings else... also never get reconnected when the AP becone available. == Fourth setup: == I tryed SetWirelessSettings to force the reconnection to one of my acces point, it work fine except that the way the function seems to be impelemeted (in OpenNETCF 1.4) wipe out all my prefered device and their configuration. When i call the fallowing code, the wep key of *ALL* my prefered access point are gone... (MYACCESSPOINT doesn't get wep key but MYACCESPOINT2 does) OpenNETCF.Net.AdapterCollection oCol = OpenNETCF.Net.Networking.GetAdapters(); foreach(OpenNETCF.Net.Adapter a in oCol) { if(a.IsWireless) { a.SetWirelessSettings("MYACCESSPOINT", true, (byte[])null); a.RebindAdapter(); } } if I could fix theese two issue, this could be a nice solution: - Retreive a way to get the wep key of the AP configured in the deveice (settings) - Find a way to SetWirelessSettings without mixed up all the AP configuration ==Conclusion =========== Thanks a lot for your help, please help me to get samples or full articles helping me to demystify that, my deadlines are really short and have no clue where to look anymore! Tag: combo box dropdown via code? Tag: 61459
  - 16
    - Handling Resolution aware Controls in VS2005 Hi, How is it possible to handle the above from within a Control class. Control does not contain an AutoScaleMode property. Of course this applys when using GDI. Cheers Simon. Tag: combo box dropdown via code? Tag: 61458
  - 17
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  - 24
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  - 25
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Is there a way to get a dropdown combo box to expand via code? I tried
setting focus but that didnt work.

Thanks

Re: combo box dropdown via code? by Peter

Peter
Wed Nov 23 11:19:24 CST 2005

You can programmatically send the control an F4 keypress (once the control
has focus) which will drop the list. OpenNETCF.Windows.Forms.SendKeys has
functionality to do this - www.opennetcf.org/sdf/

Peter

--
Peter Foot
Windows Embedded MVP
www.peterfoot.net | www.inthehand.com

"Paul" <jpierce2@austin.rr.com> wrote in message
news:uF94C4E8FHA.740@TK2MSFTNGP11.phx.gbl...
> Is there a way to get a dropdown combo box to expand via code? I tried
> setting focus but that didnt work.
>
> Thanks
>

Top

Re: combo box dropdown via code? by Paul

Paul
Sat Nov 26 12:16:04 CST 2005

Peter,

Thanks for the help. I tried the following code it didnt work. Are you sure
its F4? Does the kb_event line look right?

Thanks.

private const byte VK_F4 = 0x73;

[DllImport("coredll.dll")]
private static extern void keybd_event(byte bVk, byte bScan, uint
dwFlags, uint dwExtraInfo);

protected void ExpandDropDown(ComboBox cb)
{
cb.Focus();
System.Windows.Forms.Application.DoEvents();

keybd_event(VK_F4, 0, KEYEVENTF_KEYDOWN, 0);
}

Thanks Again!!!

"Peter Foot [MVP]" <feedback@nospam-inthehand.com> wrote in message
news:%23qGkOIF8FHA.1416@TK2MSFTNGP09.phx.gbl...
> You can programmatically send the control an F4 keypress (once the control
> has focus) which will drop the list. OpenNETCF.Windows.Forms.SendKeys has
> functionality to do this - www.opennetcf.org/sdf/
>
> Peter
>
> --
> Peter Foot
> Windows Embedded MVP
> www.peterfoot.net | www.inthehand.com
>
> "Paul" <jpierce2@austin.rr.com> wrote in message
> news:uF94C4E8FHA.740@TK2MSFTNGP11.phx.gbl...
>> Is there a way to get a dropdown combo box to expand via code? I tried
>> setting focus but that didnt work.
>>
>> Thanks
>>
>
>

Top