Kern_d's Q&A profile

• .NET Development question about callcontext and singlecall server objects

  Simple question - If a client adds data to the CallContext, will any remoted object on the server be able to get that data in the context of a future call   Or is the CallContext only specific to the original "call" the client was making when it SetData() In other words, with single-call, server-activated objects I am creating new instances for each request (method call).  Does each instance of the server-activated object see a unique CallContext, or do they all access the same context when requests come from the same client I hope that is not too confusing :) Thanks.   ...Show All

• Windows Forms Passwords

  Hey, how do you make it so a program has a login and the password is set to test and in a certain part of the program you can change the password and once you change it then when you log into the program next time it will be what you set it to Thanks http://www.codeproject.com/vb/net/registry_with_vb.asp ...Show All

• Windows Forms DataGridViewImageCell, host custom control

  Hi all, Again i lack the knowledge and documentation to achieve what i want. The new DataGridView allow us to add custom controls in each cell. I already found the DateTimePicker Example on thos forum, great example and it works smoothly, however i wanted to create a Image Edit control which could be used in the DataGridView. The problem is that the DataGridViewImageCell is readonly by default and has no EditableControl. So following the DateTimePicker example didn't work, however changing the base class from DataGridViewImageCell to DataGridViewTextBoxCell did show the control when entering the cell's edit mode. I probably need to call some ...Show All

• Visual Basic Cylce through pictures

  I have several pictures in  "my.resources" that I want to cycle through.  But I haven't been able to figure out a way without typing all of the picture name manually in my code.  Does anybody have any suggestions Thanks!     I would recommend that you consider using the imagelist control. It's Wonderful. You can load all of the pictures either statically or dynamically and the you can go through them by index or imagename. I'm doing this from memory so there may be some errors: For i As Short = 0 To ImageList1.Images.Count - 1 picturebox1.image = Imag ...Show All

• Software Development for Windows Vista EventHandlingScopeActivity/EventHandlersActivity Problem

  I have a sequential workflow that has an EventHandlerScopeActivity that contains an EventHandlersActivity with four events. My local comm service interface and implementation class define a C# event for each event driven activity. While testing the event handlers, only the first event gets raised. If I remove the first event from the EventHandlersActivity then the next event handler in the collection gets raised. All other event handlers never get called when their associated events are called. During debug, I noticed that only the first event in the EventHandlersActivity has a delegate in it's event invocation list. All other invocation ...Show All

• Smart Device Development Enable WLAN during ActiveSync 4.1 connection

  I just discovered that the WLAN connection on my WM5 Pocket PC (HP hx2410) gets disconnected as soon as I put it in the cradle and ActiveSync connects it to my development machine. Now I read something about not being able to sync over Wifi anymore, so it might be related to that. But it is quite annoying for debugging from VS2005. In our application we have code which checks and controls the WLAN connection, but as the connection is disabled it doesn't work as it should under the normal circumstances. Is there any way to leave the WLAN connection enabled during an ActiveSync session And is this something that is WM5 specific or maybe ...Show All

• Smart Device Development Updating UI from thread: Control.invoke()?

  Hi, I'm experiencing some difficulties writing my first application for pocketPc. The program should run on a dell axim x51v with windows mobile 5.0. (I'm using vs2005 professional.) The application uses threads to write messages (from the program itself and streams) to the screen in a listbox (lstStatus). I know how to add items to a listbox (which is quite trivial), but I can't figure out how to do this from within a subthread. Here's some code that should explain my problem: Public Sub New() ' This call is required by the Windows Form Designer. InitializeComponent() ' Add any initialization after the InitializeComponent() cal ...Show All

• Visual Basic 2005 App terminates when I switch to another program

  My VB.NET 2005 application terminates any time I swtich to another program, both in the IDE and deployed. For example, I'll run the app in the VS.NET 2005 IDE, and CTRL-ALT toggle to Internet explorer, and my app terminates. There is no warning or error, it does not break on any line of code. It just disappears. Any thoughts Thanks in advance. Adrian Correction on #1: The app is *not* in the Process List. (The previous VB6 version was listed, which I was running since this one keeps crappin' out.) Thanks. Adrian ...Show All

• Visual C++ Can't build WMI/C++ example in Visual Studio

  I downloaded Visual C++ 2005 Express Edition Beta and I'm trying to compile an example WMI program that I got from: http://msdn.microsoft.com/library/default.asp url=/library/en-us/wmisdk/wmi/example__getting_wmi_data_from_a_remote_computer.asp I copied & pasted the example into a file I named wmi.cpp.  Then I created a WMI project in VC++ and tried to build it.  It compiles OK, but I get two errors during linking.  Here's the output: Linking... WMI.obj : error LNK2019: unresolved external symbol __imp_ $ 6DU $char_traits@D@std@@@std@@YAAAV $basic_ostream@DU $char_traits@D@std@@@0@AAV10@PBD@Z referenced ...Show All

• Visual C# Error moving a form

  I have created a nonrectangular form I have introduced the MSDN instruction in my application to move the form : http://msdn.microsoft.com/library/default.asp url=/library/en-us/vbcon/html/vbtskCreatingNon-StandardShapedWindowsForms.asp But when I have the mouse on the form area, the form is "runnig" and I cannot do nothing.Look at the code: public partial class Style_MainWindow : Form { // Chestii de la Visual C# public Style_MainWindow() { // Forma care trebuie incarcata InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { } private void b ...Show All

• Visual Basic What is object name for main programming class

  I am trying to send data from a secondary form back to the main form in a Visual Basic program. I can't do this since I don't know the name of the object associated with the main class of programming statements. Does this main class even have an object name How would I do this Thanks for your help. It's my understanding that the name you mention refers to the class, not the object. ...Show All

• Game Technologies: DirectX, XNA, XACT, etc. directx as math library

  Was wondering if anyone knows of any problems with using the directx library as a math library since there seems to be a lack of a complete math library included in visual studio c#. This is for an engineering app so precision is needed.   Nick Waanders wrote: The only thing I am missing is an indexer in the vector class. (I hope somebody of microsoft reads this). So for example: myvector[0] = 1.0f; // x-axis I use this a lot in algorithms where you select one axis, and perform actions on the other 2 axes. You can simply select an index and use (index+1)%3 and (index+2)%3 as the next two indices.. ...Show All

• Visual C# Unhandled error

  I wrote in C# simple web browser with the following code for the Go button: webBrowser1.Navigate(new Uri(comboBox1.SelectedItem.ToString) With this code if I type an address that is not on the list of the comboBox or if the address would be for example: " www.aspireusa.net " I hit with the following error: "Object reference not set to an instant of object". And on the top of that box it says: NullReferenceException was unhandled Can anyone help jbattat It works thanks but I am once in a while getting some other errors and i am trying to understand them. Than ...Show All

• Visual Basic Odd Error

  OK, I have read a post on this before, and I have tried turning off the signing (click one manifest & assembly) But that didn't helped, I am currently getting this error: There is no editor available for 'C:\<path to .vb file>' Please make sure the application for the file type (.vb) is installed. Could someone please explain to me how to fix this error I am currently using Visual Studio 2005 Team Suite. This is the same person, sorry, I forgot my login name. But could someone please tell me what it is I'm missing ...Show All

• Visual Studio Express Editions GetPixel from a WebBrowser control?

  Hello, once again Microsoft. I need help with my WebBrowser control. You see, I would like to be able to grab a specific pixel from it. I've tried to declare the GetPixel lib (GDI32) as I did in Visual Basic 6, which I got pretty used to. That didn't work, so now I need some swifty code to do it. Maybe capture the WebBrowser to an image an use the .GetPixel property I just don't know. Please tell me what you know, and help me!  - Mathy   I don't know what your application is doing. I may be wrong but I think you only need to do a releaseDC when you've created one and in this case I didn't. I was looking at the p ...Show All