How can i highlight the whole text in a textbox control when a user tab or shift+tab into the control? Thanks Tony ...more >>

Is it possible to open up a program as a child to yours? Like if I wanted Notepad opened but as a child under the parent's control? thanks ...more >>

I'd figure it would come with .NET 2003 but I still haven't figured out where (or if there's one) is the InputBox? I've been able to pull up the VB.NET one but it's very limited... ...more >>

Hi I've got a stupid problem with code below : using System; using System.Drawing; .... public class CsrcImage :Image { public CsrcImage() { // } } .... Compiler return error: 'System.Drawing.Image.Image()' is inaccessible due to its protection level OK I know tha...more >>

I have tried the example on the following url but it has given me an error http://msdn.microsoft.com/library/en-us/cpguide/html/cpcondeclaringsectiongroups.asp the app.config file is: <configuration> <configSections> <section name="sampleSection" type="Syst...more >>

I didn't get any good answers to my previous question about unit testing, so let me rephrase the question: As near as I can see, it's possible to add arbitrary configurations to a C# project in Visual Studio 2003. And it's possible to have multiple main functions within a project (but not wit...more >>

Hi! I would like to know whether there is a component included in .net fw, which resembles Windows explorer table, where you have: filename file size ... Or has anyone else created such a component? Or does anyone have any starting ideas on making one? I've made a similar Table with ...more >>

Does .NET have an equivalent to java's JMS messaging. I'm not a java programmer but as I understand it a java application can be setup to pass entire objects between processes. Is there some sort of equivalent in .NET? I have a meeting on Monday to discuss the direction we plan to go with one...more >>

Why is it that the DragDrop and DragEnter events don't appear in the Properties window (lightning bolt) of a RichTextBox? I've added the event handlers after the InitializeComponent() call, and the drag and drop works great. But why is it missing from the IDE? ...more >>

Hi , I want to find last used cell in a column . (for example "c" or 3 ) can count used range of a column . set a range to used range of a column . thank you ....more >>

Question: Is this thread-safe: ReaderWriterLock rwl = new ReaderWriterLock(); Queue q = new Queue(); public int GetCount() { int val = 0; try { rwl.AcquireReaderLock(Timeout.Infinite); val = q.Count; } finally { rwl.ReleaseReaderLock(); } ...more >>

Is there any performance difference between, DataSet.DataTable.Select(); and DataView.Table.Select(); Thanks, Max. ...more >>

What's the correct variable naming in C#? How should a form be called (eg. Frm_myForm)? or an int variable (eg. Int_Var) or a DataGrig (eg. DG_myGrid)? I'm writing an application but I would like to name variables, objects, etc... corectly so everyone knows what the variable is and what it holds ...more >>

Is there something out there in the namespaces to read machine level setting such as the BIOS name and version? Any help is greatly appreciated. ...more >>

if i have a variable decllared as : char[] mychararray = new char[50]; and i have some method that needs an byte[] how do i cast or convert this ? (byte[]) mychararray does not work ...more >>

Hi all, I have question, I need to draw string on form and then I need to know the position of the right border of that text........ how can i do that? thanks jakub ...more >>

Hello all. For a long time now I have been struggling with a .net Windows Forms problem. In several of my applications, I use the "Process" class from System.Diagnostics to accomplish various task from within my code (kind of like the old VB shell function). Using this process class appears to b...more >>

I did create a custom control, which inherit from picturebox control. OnClick method, I have put this line of code: Graphics gfx = this.createGraphics(); ControlPaint.DrawGrabHandle(gfx , this.ClientRectangle, true,true ); this.Invalidate(); but nothing happen. Does any body know...more >>

hello, how do you declare a multi-dimentional constant array in C# does this make sense? Thanks ...more >>

It's my understanding in order to mute the pc microphone from c# requires DirectX 9. Could anyone confirm this for me, and provide examples or technicle refrences where it may be discussed? Thanks, Ken Lemieux...more >>

Hi NG, how can I programmatically add items to the toolbox? Any links? Thank you Rudi ...more >>

I have a software (made in visual fox) that is installed in 600 machines... I want to move the software to C#... but i have a question; Will i have to install the framework on then 600 machines? Will it decrease the peformance of the machines? The machines have 64MB of memory and 700 mhz (pr...more >>

Hello all, I have created a windows service and now I would like to have a configuration page in the system tray. Basically an icon I can click on which will just interact with an XML file. What is the best way to do this? 1. How do I use the System Tray and add an icon on it. Ye...more >>

Friday, no brain power remains... I have three assemblies; Client, Interface and Implementation. The Client uses Implementation through remoting. Client has a reference to Interface, but not to Implementation. Likewise, Implementation has a reference to Interface, but not to Client. Inte...more >>

I was involved recently in desiging a middle tier class where we essentially need not track the state of the object, hence a class with static methods was preferred. But there were some debate as to whether it made sense to implement it as a singleton. I wanted to know if there is any perfor...more >>

Hey! Wondering if anyone can help! I have been trying to build an aspx page which builds a list of records from a database. Having been doing this using xml and xslt using asp for years with no problems this particular page had some functionality which I thought could be well suited to a da...more >>

Here's another newbie question. I've written a little module to read a XML file and display it in a DataGrid. My code looks like this:- if(openFileDialog1.ShowDialog() == DialogResult.OK) { ds.ReadXml(openFileDialog1.FileName); grdXML.DataSource = ds; } } This works OK. ...more >>

I'm following a tutorial tour for Microsoft C# and I ask if this language supports array of classes like C++.That's a personal curiosity. I add the body of the two .cs files of my project which works fine but commented-out lines: using System; namespace My3 { /// <summary> /// Summa...more >>

Although the particular DLL is for the National Instruments flexmotion32.dll I've convinced myself that it has something to do with the 'u16 FAR' data type. This is the particular Dll function that is giving me a headache: FLEXFUNC flex_read_port_rtn (BOARD, u8 port, u16 FAR *portData); Is ...more >>

Hi I set up a new instance of SQL Server using the developer edition CD and set up a datbase called AMA, table called user with two fields called userid (the primary key) and username (a string). Wheni run the code i get the following error message Incorrect Syntax near the keyword 'us...more >>

Hi I am writing a simple winforms application that allows me to select a pdf file on disk, and have it launch Adobe Acrobat. In the Win32 c++ world I would just do a ShellExecute. How can I accomplish this in csharp? Or do I have to write some managed c++ module to do this? ...more >>

suppose A a = new A (); B b = new B (); b.OneEvent += new EventHandler(a.handler()); //dose this event increase a's ref in managed code. a = null; GC.Collect(); b.OneEvent(null, null); //OK? ...more >>

Hi, we are developing server side report generation application with .NET. The problem is, that we have to present same data in diferent formats (HTML, PDF, WORD, EXCEL). This has to be done using templates, wich are defined by user (with GUI frontend). The main problem is how to generate Wor...more >>

Hi, I have a couple of classes: Customer, Contact, ContactList, Agency, HostingCustomer and OtherCustomer. The Customer class is a base class and contains all the common properties and methods associated with the customer including methods such as Add, Delete and Get. The Agency, Host...more >>

Can Someone suggest a goog book for a c# beginer. Thanks Fred ...more >>

content=Regex.Replace(content, @"/*Offline*/", @"//Offline"); content=Regex.Replace(content, @"//Online", @"/*Online*/"); Second line works fine but the first didn't! I think the problem are the "*" in the first line. Is it a bug?...more >>

Hi, I have a .dll the I want to embed into the main (and only) assembly, and use it from there ... how do I do that, or is it even possible ? - please reply by eMail if you reply to this fast ... TIA ma...more >>

I am using an errorprovider and a datagrid component on a form. I use the errorprovider to display error hints in the grid, in the case the entered data by the user is checked and not found Ok. After the data is corrected, the hint does not disappear ! (the exclamation mark however, does dis...more >>

First of all, sorry for the cross-post. Seems like there should be a managed directx newsgroup. I'm trying to open the following sample application that comes with the DirectX SDK. C:\DXSDK\Samples\C#\AudioVideo\Bin\csAVPlayer.exe It will not play some of the samples shipped with the SDK. ...more >>

does c# provide bitfields in structs ?? can't find any hint in msdn Johan ...more >>

I have my access database with a list of student's names, some student has the name as O'Neal.. when i am doing a search in my windows applicaiton sql queries, i couldn't search for it coz it will throw a syntax error exception (the sql is: SELECT * FROM tblStudent WHERE Name='O'Neal';) Since ...more >>

How can I do remote debugging in c#? I tryed ALL... but DCOM shows me a nice "ACCESS DENIED. You need to add you to the debugger users" OMG... I AM IN THE DEBUGGER USERS!!!!!! why why why why I cant do remote debugging????? ...more >>