Hi, How do one add parameters to a URL from a UserControl? My problem is that I want to set a unique value to the webpage when the page loads. This value I will use as a identifier for that session (user). I'm certain it's a simple solution for this. But I have not been able to locate it...more >>

Hello I am fairly new to C# and I wanted to create an application with a toolbar down the side and each button would navigate a user to a new page. So the toolbar would remain in place and to the right of the toolbar would be a new page with new data and new options for the user. How does one ...more >>

Dear all, I would like to know how can I send some messages to other computers in the intranet so that other computer can suddenly show the messages in the pop up window? Thank you for all of your help. Alex ...more >>

Hi All; I have one datagrid control on which o show some of my database tables. My trouble is that my column names on my table are not so good for customers to understand. So I must use more understandable names on my datagrids column headers instead of column names. Is there a way of chan...more >>

I am learning Csharp and the .Net Framework. any pointers? thank you ...more >>

Hi! Here is code I have: byte[] a; a[1] = 3; //Here I get syntax error (something about brackets. Parameter expect byte array. What is correct syntax ?) Response.OutputStream.Write(a[], 0, 1); Some other simple questions: 1. How do I load jpeg from file and resize it? 2. How do I ...more >>

Hi, I'm using VS.net 2003 and C#. I created (using buildin designer) a dataset with 2 tables. TableOne has 2 fields: sName and sTable (both string) and a primary key TestKey, set on sName. TableData has 2 fields: sName and sData (both strings). I have made a relation, based on sName, where Ta...more >>

I've finally seen the light and decided to move to C#. Is there a good list of VB.NET commands and their equivalent in C#? ...more >>

Environment: Windows 2000 Server (SP4), ASP.Net/C# (Framework 1.1) Hardware: PIII @ 700 MHz, 512 MB RAM ---------------------------------------------------------------------------- ------------------------------------------------------- I have developed a web application which I am deploying o...more >>

I'm trying to find a moderately scientific way of gauging how many VB.NET programmers there are versus C#.NET. We are all full of opinions, but some documented numbers would be appreciated. For example, Google has archived 113,000 postings to this C# newsgroup, and 85,000 for the VB.NET newsg...more >>

quick short newbie question.. (sorry) I created my first stupid little program that shows a label saying hello in a windows app. It all works fine. Worth noting, I didn't create the label using the toolbox but instead wrote code for it. My question is the following : When I run the app I get...more >>

Why was a destructor (finalizer) included in the syntax of C# if implementing IDisposable is the sure way to release resources held by a class? If you were doing a language from scratch would you include finalization syntax or force users to to explicit cleanup using IDisposable?...more >>

Hi everybody I'm newbee in C# and I'm supporting an application where there's a method like following: public int addNews(DateTime dtNews, string strTitle, string strShortText, string strText, int intStatus) When trying to add the data to a SqlServer 2K using ADO.Net I did the following:...more >>

Im looking to do some heavy geomentry based number crunching involving a lot of sin and cos calculations. Performing these operations takes up a lot of computer time, we have calculated ~100 clock cycles per calculation. I have come accross approximations such as the "Taylor Series" for work...more >>

Hi, I'm trying to create a reusable component with C#. So, I created a user control that uses Microsoft SQLDMO Object Library (SQLDMO). And I could add that UserControl on Toolbox. However, whenever I'm trying to add this user control on the client program's form I'm getting the following ...more >>

In my Win App, I have a datagrid that's bound to a dataset. When the form loads, the datagrid fills. How can I add an empty row to the end of the datagrid during a button click (similar to pressing Tab when mouse pointer is on last field of last record of datagrid)? The datagrid's read-only so ...more >>

Hi, I am a new C# programmer and I am trying to create a project which has a parent MDI form. Then I want to be able to open other forms using some buttons or menu items on the parent MDI form. I opened new Windows Application and set the first form (System.Windows.Forms.Form) to th...more >>

Does anybody know how to find the workgroup name (or domainname) of the local PC. Is there a framework class for it? (preferably a solution not involving active directory calls) Thanks, Ewart. ...more >>

Does anyone know of concise c# & .NET study materials...like all the keywords in one place, etc? ...more >>

I found a problem with C# and post increments. I was going through some source code in c++ and found someone did a post increment: int x=0; for(int i=0; i<10; i++) { x = x++; } In c++, you'd get 0,1,...,9 (as expected). This doesn't work in C#. In C#, you get 0,...,0. It seems the p...more >>

How can I set the number of decimal places for a double value? ...more >>

The following code produces an error on the very last line, namely: An unhandled exception of type 'System.Security.Cryptography.CryptographicException' occurred in mscorlib.dll Additional information: Bad Data. Please help; if you can with exactly which code I should change and how. Patric...more >>

Is it possible using Image or Bitmap to build and save an animated GIF file? I am not have a problem saving the GIF file just getting the frames added to it. I did find ImageAnimator but it only seems to deal with showing the GIF and not saving it. Thanks, John ...more >>

When I use the OleDb to connect a Oracle db, and use the ExecutScalar() method to get the count of a table, the return value can't be cast to a data type, say int, while this works fine for a SQL server db using SqlCommand. Following is the code example: string strCnt = "SELECT count (*...more >>

I have a Base class with virtual member, I have 4 levels of derived classes, but only the first 2 levels override the virtual member, the last 2 don't. When I create a base type reference to most derived type, then invoke virtual member, base type member is invoked. I expected most derived imple...more >>

Hi DragDrop event is fired by the control accepting the drop If the drop is performed outside the controls I'm watching with events (like on another control/panel/window or outside my app) is there a way for me to know about it? (In MFC, for example, mouse movements are captured) Or do I...more >>

I have a dataset of one table. and I want to save that dataset onto a database table. I tried SqlDataAdaptor, but i dont want to write the sql. Any help is appreciated. Prasanna...more >>

Hello, I'm currently try to use the SystemParametersInfo function in a c# environnement but I have a problem to use it with the action SPI_SETWORKAREA I've got this definition [DllImport("user32.dll")] private static extern int SystemParametersInfo(int uAction, int uParam, string pvPa...more >>

Hello, I am developing a program that will read data from a couple of text files, process it, and then, populate data into specific cells in an Excel spreadsheet. Towards the end of the program, I try to exit from Excel using the followings statements. m_objBook.Close(false, m_objOp...more >>

I draw a combobox on a form, but I can not change its height, What I can do about it? B.Rgds ...more >>

I need to be able to move a Panel on a windows Form at run time using the mouse. I have tried adding a MouseDown event handler to the Panel and then within the MouseDown handler adding a MouseMove event to the Panel and then setting the Panel's Location to a new Point(x, y) with x and y set to t...more >>

I used to get on exception: Lock request time out period exceeded. Now I get: Lock request time out period exceeded. The statement has been terminated. Why the extra "statement" part? Thanks in advance. Adam Smith *** Sent via Developersdex http://www.developersdex.com *** D...more >>

In VB.NET I add user defined controls to the main panel of a form :- Dim controlInfo As MainTemplate controlInfo = New Details controlInfo.Dock = DockStyle.Fill ' remove the old one if one already on display If pnlMain.Controls.Count > 0 Then pnlMain.Controls.RemoveAt(0) pnlMain.Cont...more >>

hi all, Is there a possibility to call c++ classes directly out of c# code without using dll's? How is it been done in 'normal' .Net and how in the CompactFramework? thanks Clemens...more >>

C# .NET creating a tree programmatically treeView1.BeginUpdate(); treeView1.Nodes.Clear(); treeView1.Nodes.Add(new TreeNode("Client Details")); tvSelect.Nodes.Add(new TreeNode("Referrals")); tvSelect.EndUpdate(); Can anyone tell me how I add child nodes to the above tree? Liz...more >>

I am always getting the following error when debuging ASP.NET application: Access is denied: 'ICSharpCode.SharpZipLib'. At this point I have to reboot IIS to get the web site going again. It appears that if you are debuging your application it leaves SharpZipLib in some strange state. I...more >>

with WinForm + DataGrid How do I Catch the event if the text have changed in a specific cell ? Please Help!!! ...more >>

How can I in a cell see whether these am empty and if a text of me inside to set? For example "100012" into the cell Row 3 column 3? I work whit C# wondows Appl. Thanks Michael ...more >>

I use C# windows Appl. My problem i have is whit my column amount. In the database i have float as datatyp an my datagris shows the amount place without decimal. I know dgTextBoxColumn.Format but functioned with me not. Please can anywhere me help. Thanks Michael Here my code: ...more >>

Hi, i use the TAB ORDER to move focus from one control to another. But it functions only pressing the TAB KEY. To move focus using the ENTER KEY i use the KEY PRESS method in all the objects of the Form. There is a way to use the ENTER KEY with TAB ORDER without the KEY PRESS method??? ...more >>

Hello I'd like to develop a program that fave a graphical interface like Microsoft Money where you navigate through the forms just like a browser How can I do that or where can I find an example with this capability? (Using Microsoft Visual c# .net or Microsoft Visual Basic .net) Thanks...more >>

I need to find a minimum of three float values.. what would be the most efficient way of doing this? Can someone please share some code with me for doing this? Thanks Sona ...more >>

Hi, I have a DataGrid which works. But if I load a new table to the DataGrid, it will still show those old data I load earlier. private void loadTableA() { if ( openFileDialog.ShowDialog() == DialogResult.OK ) { this.dataGrid.SetDataBinding(null, null); try ...more >>

Does anyone have any recommendations for good architecture books relating to C# or architecture in general? TIA JB ...more >>

I'm trying to discover the number of weeks in a given year. As I live in Norway we are using the gregorian calendar. First week of a year is the first week with four days. First day of the week is monday. I've tried two different methods, both resulting in the same wrong answer. Both methods t...more >>

hi, My C# application displaying correctly in IE, But in netscape all input controls (text box, dblist, drop down list and etc.,) disappered. Only lables are displaying. The value inside the drop down list is displaying in the screen itself. I can't see the controls. Anybody knows about ...more >>