Hi, I'm using VS 2003 .NET and creating an application with multiple forms. I have a problem with InputPanel, when I close the second form and in the first Form I set iplMain.Enabled = false I got a error because this action call the event of second form that is already disposed, I don't ...more >>

I need to determine the minimum specs that any given ppc device needs to run my app. I'll admit, the most difficult part of getting into this cf .net programming has been figuring out the devices, what OS version they need to be running, and what version of the netcf. In fact, I still am feelin...more >>

Hi, I've got a Datagrid control in my PPC/WinCE project. Works fine. BUT... - How do I set the datagrid to be ReadOnly so that people can't modify the values in the cells? - How do I change the datagrid so that there isn't a big blue thing (the caption?) at the top of the control? - Ho...more >>

Is there a limit to how much text (ie WCHAR*) can be marshalled across using something like string MyString = Marshal.PtrToStringUni(LParam); Is there a 1K limit or something? Thanks Andrew ...more >>

I'm using this code as per posts in this group: ProcessInfo pi = new ProcessInfo(); if (CreateProcess ("\\Windows\\wceload.exe","/noui " + downloadFileName, pi)) where downloadFileName is my application xyz.CAB file. I have patched the Registry Instl variable so I don't get the "App. a...more >>

Hi, i need to upload a file from a pocketpc .net app to a web server . Which are the best methods to accomplish thi issue ? Ftp ? Web services ? I' ve snipped some code for realize this with FTP but i 've several problem .... thanks in advance for help andrew ...more >>

When adding a web services reference to my first CF application and try to rebuild I get the following errors. I can invoke the Web Service just fine and this method has always worked well in the .Net Framework. Errors: Type 'Serializable' is not defined. Type 'System.ComponentModel.ToolboxI...more >>

Hello I have an application with 3 windows forms: Form1, Form2, Form3, where Form1 is the startup form. Form 1 call Form 2, Form 2 call Form 3, Form 3 should call Form 1. With 'this.Close()' step-by-step work this, but it's not really clean and it looks not fine. How can i jump direct from ...more >>

Dear All, I need a Pocket PC emulator to demo my .Net CF software in normal windows. Do you know where can I get or buy a Pocket PC emulator? I don't want the emulator come with embedded visual tools and .Net visual studio. I need a stand alone Pocket PC emulator. Thanks,...more >>

if you put three Radio Buttons in a group box. Is there a way to use the group box control to check an see which radio button is selected. Instead of having to check each radio button to see if it is selected? C# Please. Thanks...more >>

I've got two combo boxes which are somewhat linked - the second one is only valid if the first one has a certain value. When I change the first one to a different value, I want to deselect whatever's in the second box, leaving it blank. It's definitely possible, because the databinding does...more >>

Hi, Currently I am working on a project related with mobile web services. So far I've developed sample applications in .NET CF using web services. As the next step I'm planning to analyse the performance of web services and figure out the ways to improve the performance. However, I could not fi...more >>

After a pretty long hiatus, we've updated the OpenNETCF namespace and provided a source drop. There are several bug fixes plus the addition of a GPS library and a ToolHelp library. The source can be downloaded here (bottom of the page): http://www.opennetcf.org/sdf Chris Tacke, eMVP Co-fo...more >>

Hi, I am a first-timer at developing a C# Smart Device application (Pocket PC 2002), and I am experiencing a rather irritating problem. I have three tabpages on a form. When i call tabPageXXX.Focus(); nothing happens, even though the documentation says "Supported by the .NET Compact Framework....more >>

Hi folks, I'm getting an error when binding a combo box.. the following works fine... comboBox1.DataSource = m_data.Tables[0]; comboBox1.DisplayMember = "Title"; comboBox1.ValueMember = "Key"; .... but I really want the data sorted by "Title" so I tried the following... DataRow[] ...more >>

I am converting a piece of chart generation code from Desktop to Compact Framework and it uses GraphicsPath class from the Desktop .NET framework. This class is not available in compact framework and wondering if someone has created any equivalent code for this class for compact framework. ...more >>

Hi! I started to develop for Pocket Pc 2003. I have a test PDA(Hp IPAQ hx4700). This PDA has high reolution(640*480), but if I make a Windows Form Application (VS.NET2003 C#) and I get this resulotion: 320*240. I use these commands to get resolution: System.Windows.Forms.Screen.PrimaryScree...more >>

I have a array of Byte received from a socket. I need to process that array as fast as it's possible, so ideally I should be able to use the data from that array instead of creating objects from it. For example, can I create a String object whose contents are stored in that array? i.e. I d...more >>

Hello guys, I have a problem in my cf c# application: On top declaration there is "using System.Runtime.InteropServices;" and following my source I want use this declaration, "[MarshalAs( UnmanagedType.ByValArray, SizeConst=6 )] public Int32 [] Ip; for compiler I'm less using directive de...more >>

Dim pIEPRemote As New IPEndPoint(IPAddress.Any, 0) Dim server = New UdpClient(8000) pBytRxBuffer = server.Receive(pIEPRemote) I am having some difficulty with the above 3rd line where the editor is highlighting server.Receive as an error, which goes like this: "The targeted version of the...more >>

I have been struggling to figure out how to easily write PPC games in C#. I want an easy engine that is also powerful. What options do I have? Also I am fairly new at C#. Thanks ...more >>

I just learned that using a C# delegate as a function pointer to allow callbacks from unmanaged C++ code isn't supported in .Net Compact Framework. Big bummer. So as I look into using MessageWindow instead (in which unmanaged code posts a Win32 message which is received in C#), I see that you ...more >>

Dear all, I'm new to the .Net CF and am facing some problem sending objects via TCP socket. Can anyone please advise how I can convert an object to bytes() so that I can send over TCP socket? Thanks. --Simon Teng ...more >>

Hi, I've posted a question a few days ago about that but I've got an even more precise question now i've done some basic tests :) I've build a VERY simple OpenCF.Net application : The main form with - a panel - a listview I've added for all of them the same context menu... Only the...more >>

Hi, I am using a Win 2k domain controller as a development platform. I need active sync to deploy my first CE.net app. I have managed to install Active sync OK except that it cannot detect the CE Device via an InfraRed adapter that is connected via USB. I get the impression from the help that b...more >>

From C# I tried to P/Invoke a C-style function in a simple 1-function DLL I created with evc++4.0. It fails with MissingMethodException. I finally figured out it's because the exported function name is decorated by the compiler/linker, so instead of "Myfcn" it's ?Myfcn@@YAHZZ. If I use EntryP...more >>

I have a worker thread that calls MyForm.Invoke(MyEventDelegate), however once the code hits the invoke method, the thread dies. Try/Catch doesn't even catch an exception. Any ideas? I'm using .NET CF SP2 Thanks --ROBERT ...more >>

I have built a CE app that was running fine both while in the cradle and not. Now suddenly it will only run while in the cradle. It crashes immediately, no form loaded - can't find out where it is crashing. All I can think is that it is trying to talk to the network, and can't, and is fai...more >>

long day - stupid question : how do we determine the current application's physical location ? in a non-cf app I would use System.Reflection.Assembly.GetExecutingAssembly().Location but Location is not an available property for a smart device app. gerry ...more >>

Hi I've been developing a generic GPS library that will shortly be in the code drop of OpenNetCF under the namespace OpenNETCF.IO.Serial.GPS To get the ball rolling. Listed below is the namespace. Would really appreciate some upfront feedback from the group as to stability of serial port c...more >>

I have made a dll with VB.net, and this dll call a another dll. Now i will test my dll in a exe program, always in vb.net. It's working at the first execution of the exe. But when I regenerate the exe, I can't. So I try to delete the exe in PPC, and I can't because there a sharing violatio...more >>

Let say there is a DataSet containing some data given by SQL command from SQLServerCE database. This DataSet we bind to a control that Shows the data. Than (somehow) we modify showed data in database (by UPDATE for example). Do we need to reload the DataSet or control to see the changes? If Y...more >>

Part of my .NET CF application are some custom controls which I am creating with some simple graphics commands (DrawString, DrawRectangle, etc.) Ever since I started using my new device (an hx4700 iPAQ) for testing, it has been clear that the text quality is not nearly as sharp as the text conta...more >>

When testing Windows Mobile 2003 SE on DELL and HP devices I noticed, that tab key doesn't fire keydown event. It did in previous versions of Windows mobile and wince. Should I regard it as an error or solution change? The standard for desktop environments is that it fires keydown event. I can...more >>

Hi all, I m trying to have a listview with gridlines. this will make the listview look like a datagrid. any help would be appreciated. I have tried to use the samples concerning the owner-drawn list, unfortunately those samples only deal with listboxes (only one column). Besides it's like r...more >>

Hi ! I have installed sp2 for the .net compact framework and my webservice ceased to function. I'm using windows xp sp2, pocket pc 2003 with sp2. I've tried the pocket taskvision sample and the problem is the same, i get always a webexception. If i reset the emulator and run pocket taskvision...more >>

hi, sorry for my english. if i install a new application (fresh compiled with VS2003) i got this error: "Das Programm, dass Sie installieren... ....... ist.. für eine frühere Version von WM erstellt" in english: "The programm that you installing is provide... for an older version" or so. ...more >>

How can I embed athe HTML control in my forms app the OpenNetCF.org control doesnt work on my device (no htmlview.dll) ...more >>

I am looking for some examples on using the ThreadEx class. I could not find any out on openNetCF.org... regards, Jay ...more >>

Is there no way to write Compact Framework apps on VS 2002? Reason I am asking is that, in going thru some old .NET magazine articles (from 2001/2002) it sounded as though one COULD put the compact framework on 2002 and it would appear in the IDE. Just curious.... Tom ...more >>

I've a closed-source .net system library which is a wrapper class around a native system dll. This .net library contains of one class with serveral public static methods for playing the buzzer, setting cpu speed, enabling/disabling the keypad and so on. Calling functions of this library inside c...more >>

Hello all, I was just curious on how the best way to control the position for controls on Windows CE vs Pocket PC? My guess is in the form load i would do something like this. foreach(Control objControl in this.Controls) { if(OS.Equals("PocketPC")) { objControl.Location...more >>

Hi I posted on this last week so apologies for bringing it up again but so far after having been put on the right track (Thanks Alex F) I have found no further resources and am a bit dumbfounded. Can someone explain in (very!) simple language the steps I need to take to connect to a web ser...more >>

Hi! I believe this question has been asked before but I wasn't able to retrieve anything from the archives. I have built a deployment package using the guidelines on MSD http://msdn.microsoft.com/mobility/understanding/articles/default.aspx?pull=/library/en-us/dnnetcomp/html/netcfdeployment.a...more >>

Hi, I am making an application for work studio. This means the user is asked a question at random time within the workingday. When in idle mode the device should be turned on/off by the application. However I am not shure how to approace this task. Any sugestions would be appriciated. Th...more >>

Hi I don't use .NetCF myself but have someone working for me developing a PPC app using C#. To cut a long story short the spec is for different coloured command buttons to be used rather than the default grey background, but the developer (who otherwise seems pretty good) is resisting this sa...more >>

Hello NG, I write a small App for .net cf. If I close my app with App.Exit() or maimform.close(), then I cant start the app again. Can somebody tell me why I cant start the app again? Tanks in advance Konstantin Becker...more >>

Hello: I've been trying to use a serial port to fire pins connected to a electronic device using RTS and DTR lines but it's too slow in Windows CE. So I would like to test using a parallel port, but I can't find information about that. How can I fire a specific data line of parallel port in C...more >>

Hi, I did a bit of research and read some articles (mostly from the msdn) about threading in dotnet cf. When the user is viewing records, the most useful data is loaded onto the first screen then the app kicks off background threads which load the rest of the information located on other form...more >>

I always get this message in the build log when running my device app: "Files in the package 'netcf.core.ppc3.x86.cab' are more recent on the device than on the development computer. Consider upgrading to the latest version." Unfortunately, I can't figure out how to upgrade the dev box. F...more >>

On the main form of my application, I provide the user with the current datetime, similar to the pocket pc Today screen. I would like the user to be able to click that date, and bring up the built in CE Clock settings. Is there any way to instantiate this form from the compact framework? For...more >>

Hello I am developing a Pocket PC (XDA 2 - Windows Mobile 2003) application that needs to connect to a remote SQL Server 2000 database via GPRS. I am hosting a test database myself so have full control over the environment. The desktop machine currently has SQL Server 2000 (mixed mode authe...more >>

Hello *, I created a class, which allows me to send a SMS. I used the sendSMS example from Microsoft (http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnnetcomp/html/netcfSendSMS.asp) Okay, it works fine, I can send a SMS, but only without my own number. The receiver gets an...more >>

Hi What is a good book for developing database apps that can sync with desktop/server data via cable or over the air? Thanks Regards ...more >>

Hi, As I can see, Compact Framework has no System.Environment.StackTrace. Is there any other way to find out stack trace when I catch exception? Thanx in advance, Cheya...more >>

Does anyone know how to use the SmartMarshal dll from Alex Feinman http://www.google.com/groups?hl=en&lr=&ie=UTF-8&threadm=%23o624Oy2CHA.1460%40TK2MSFTNGP12.phx.gbl&rnum=3&prev=/groups%3Fq%3Dmarshalas%2Bgroup:microsoft.public.dotnet.framework.compactframework%26hl%3Den%26lr%3D%26ie%3DUTF-8%26sel...more >>

Hi! Is there a way that I can check if password protection is turned on the device [Pocket PC 2003]? If it is not turned on then how can I inform the user that they should set the password? Thanks for your time. Regards, Kumar...more >>

i want to have only one occurence of a specific application running at the same time. this is the default behaviour on pocket pc but not in ce.net. does someone know how i can do it in ce.net? thanks -- Guillaume Defretiere IREC (05 49 62 88 88) guillaume.defretiere@irec.fr ...more >>

Can Visual Studio Analyzer be used to profile WinCE & PocketPC applications written in C# ...more >>

I have a singleton class in my data layer that opens a SQL CE db connection and assigns the connection to a member variable. This way I can open the connection only once in the application and avoid having to close and re-open it. In my data layer I have a Customers class that is derived from ...more >>

I used to have just one dial-up profile on my CE handheld and RasDial worked fine. I now want to add some more which will use different profiles. How do I programmatically pick between them? I have a number of different applications on the handheld and they need to access different backends us...more >>

I want to include some DLL files in a setup project I have to install on my PDA, but because they are DLL files I think they are not copying to my application directory. Any suggestions on how to get the files there? ...more >>

Hello Gurus, I am into a new arena of Windows CE/embedded XP. While launching an asp.net application into Window CE4.2 IE browser, I got into a problem with background of listbox. Though I noticed from books that background color property is not available for CE.net for .net controls, I wonde...more >>

I have a smartphone application that I will deploy OTA using a link to the cab file in an email or SMS. My application requires the .NET framework string cab file (System_SR_xx.phone.cab). Is there a standard mechanism to setup the dependency so the .NET cab file will install automatically if ...more >>

Hi, I would like to change the color of the title bar when my app starts. I do not want to use themes - is there any way to change that color through code? Please help - I could not find it anywhere. Thanks...more >>

Is there any? If so, what namespace is it in, and are there any articles about it? Thanks...Dan ...more >>

I have been working on Visual studia.NET. I have created one class using VC++.NET,I want to resue that class in VB.NET. Is it possible.. if yes then tell me what steps to be followed. Thanks in advance....more >>

Although in Compact Framework the ListBox and ComboBox classes do not have BeginUpdate/EndUpdate methods, it is easy to supplement these methods: http://blog.opennetcf.org/afeinman/Trackback,guid,9305a1d9-e24e-4310-89e2-f80808076a37.aspx -- Alex Feinman --- Visit http://www.opennetcf.org ...more >>

Due to time constraint, my last project (first one in VB.NET for us, I might add) was done 'quickly' rather that right, meaning that it is 'good enough' for the client but not the kind of project one feels proud of after delivery. I happen to have some spare time on my hands which I plan to ...more >>

Hi, I'm running this command: MessageBox.Show(System.Net.Dns.Resolve(HostNameTB.Text).AddressList[0].ToStr ing()); I input my computer ip address On the emulator this works, on the ppc it doesn't. I keep getting this message: Socket Exception: No such host is known The ppc is connect...more >>

Hi, i have a datagrid bind to a dataset. I have to format value in a column. In compact framework datagrid is not present property Format in column. How i can format value?? Thank's Stefano ...more >>

Can someone tell me how to make a mail client with visual studio 2003 for Windows CE?...more >>

Hello, I'm thinking of using a Treeview as a note taking app, and for editing purposes, I want to store string/text data in a hidden element of each node. I'm thinking the .Tag property would work well, but I don't know the limits. The .Net framework claims any object can be stored there,...more >>

I need to access a dns server directly. I need to query the mx records, so System.Net.Dns has no methods to offer for that. Any ideas how I get the ip address for a local dns server. (there must be a way, since System.Net.Dns would have to do this internally as well) Tia....more >>

Dear All I`m tring to add a PictureBox to a Form. My code as below. Dim myPic as new PictureBox myPic.Location = new Point(10,10) myPic.Size = new Size(100,100) FrmMain.Controls.Add(myPic) Then I got a "ArgumentException" at this line FrmMain.Controls.Add(myPic) Somebody help? Than...more >>

Is it possible to develop a service DLL in VB.NET that can be registered and run as a service on WM2003? ...more >>

I am trying to provide printing capability using HP Mobile Printing SDK from VS.net 2003. This SDK available to people who submit a business case proposal. Let me explain what is happening. It comes with a dll into which the code makes P/Invoke calls for providing printing facilities. The dll ...more >>

In programming point of view, I want to insert some marks into a wmv file(like timestamps), then the video will be packaged into several partitions. .......{"header"+"video partition"+"footer"}...... I am programming with C#. What tools can help to do so?...more >>

Hi! I was wondering if I could use the OpenNetCF.Net code to get the signal strength on a embeddedXP terminal. I switched from "coredll" to "kernel32", replaced "UIO1:" with "\\\\.\\Ndisuio", read the adapter name "{461AC549-2458-42D5-8829-B29952667DB9}" of the WLAN card, switched FileA...more >>

In VB6, I use DrawMode to indicate the XOR when need to draw a XOR line against the background image. But in .NET CF, they said that I must use interop !? I don't want to relate to GDI more. Could you tell me a sample to draw a XOR line using CF (for my smartphone) ? Thank you ...more >>

Hello all, is there a way to hide the connecting dialog when a device is creating a connection? I do not want my users to see this so that do not have a chance to hit cancel. ...more >>

I'm try to develop an easy way to get a complete list of all form names, their control names and the controls text/caption properties as a starting point for an internationalization project on a fairly large project. It looked like it could just put a call to a module level sub and passing Me ...more >>

Hi! I am trying to use a datagrid control on a smart device application. I managed to see my data on it but i have to arrange the width of columns. How can i do that? I ve tried to use tablestyles but couldnt manage. I get System Null Reference Exception... ...more >>

Hi all I know there isn't real right clicks on mobile devices as there is no mouse... But, I want to reproduce it, as windows CE does when it draws a circle around the cursor, when there is a "long click", to show a popup context menu (again as windowsCE does). Is there someway to use t...more >>

Hi all! Yesterday I open VisualStudio on a PPC progect and as every day I clicked on the "Run" button. I got (I translate, excuse me if the message isn't accurate) "Cannot establish a connection. Make sure that the device is physically connected to the development computer". I tryed evry...more >>

I am using various P/Invoking for serial comms to communicate with a custom built device from a PPC2003 device. Everything works fine normally, however, on occasion it is required that I output a character to the custom device, collect the response data, process the data, then repeat the proc...more >>

Hi, I know this topic has been discussed here before but I am having difficulty achieving a totally silent , promptless install. Using C# I would like to run an install without any user interaction at all. I am using wceload to run a cab file. The code is as follows: ProcessInfo pi =...more >>

Hello, I have a little problem. My application consists of many forms whith many images. The images are preloaded on programm start. I've written functions that preload all images an then show the log in, but my problem is, that the form is displayed even if not all images are completely load...more >>

bytes = System.Text.ASCIIEncoding.ASCII.GetBytes(send1) ' send is STRING Hello, I am writing the above line of code and I am receiving the following error from the syntax-hint system: ..NET CF does not support latebound overload resolution I was wondering if someone can explain what is lat...more >>