Hi, I am creating a program, and when it is executed it stores the time. Now at each second I will display the duration of the program execution. DateTime progExecuted = DateTime.Now; I started a thread that is to be used only for the timer. In the thread I have another object of type...more >>

Hi, I'm writing a C# Library that interacts with an C DLL, the resulting DLL is used by an application and it works fine on my PC but when i copy the resulting DLL to another PC running the same application it gives an error Access violation at address ..... in module ..... Read of address...more >>

Hi to all. I have a server app. to which i need administration client. The client will connect to the server via remoting. I'm thinking of making one class on the server to serve the admin client. Since the client must be authenticated, each method call will have to include a session id, given ...more >>

I've looked around msdn for about an hour now and can't figure out how to place an event when the user scrolls, or even how to get the value of where the scroll bar is actually placed... Anyone know how to use this event, or how to get the scroll bar info? ~Benny...more >>

I have a console C# app that needs to take in a bunch of arguments. I'd like to process them in any order, for the life of me, I can't remember specifically how to do that in C++ (been a loooonnng time) and know there must be a similar shortcut for C#? In short, I want to be able to easily ...more >>

I've been adapting an older unmanaged C++ legacy app to C#---with limited success. The original app made use of an older, but straightforward, C DLL that worked efficiently under the VC++ 6 model. To adapt to C#, I've wrapped the older DLL calls in an unmanaged C++ class which pretty much jus...more >>

need help i Have this error in my project: "An unhandled exception of type 'System.Threading.ThreadStateException' occurred in system.windows.forms.dll Additional information: Could not instantiate ActiveX control '648a5600-2c6e-101b-82b6-000000000014' because the current thread is not in a ...more >>

It might be basics for many but I never gave attention on this before. Steps: Add 2 forms (Form1/Form2) in application. Create a object in Form1 for Form2. Form2 f2 = new Form2(); //line 1 //f2.Show(); // line 2 f2.Close(); // line 3 ...more >>

I want to Make a Draw Line Contrls,Please Help me Thanks! ...more >>

how can i highlight a row in the datagrid?? ...more >>

I've got an ArrayList of objects that I'd like to save/retrieve as quickly as possible. Each item in the arraylist is an object with about 50 variable-length strings; many zero-length, some about 80 chars or so, if that matters. I figured I'd set the [Serializable] attribute on the object and...more >>

I want to close excel application from C#, this is the piece of code I am trying "System.Runtime.InteropServices.Marshal.ReleaseComObject(excelApp);" GC.Collect(); It ain't working ! Any ideas please !! Also tried excelApp.Quit(); This is fine, but on viewing "Task List" the application ta...more >>

take TreeView as an example. I could not find GotFocus and LostFocus events in Properties Windows of VS .net 2003. But they are there. Why? Thanks ...more >>

Hello All, I'm working on a web app that will simulate a Windows app. One of the items that I've trouble reproducing is the parent/child interaction that might occur between a windo and popup custom dialog box (example: right click an item and bring up a Config/Properties dialog of the select...more >>

have a datagrid on a windows form which bound to a dataset ,one column contains boolean data which datagrid shows checkbox for it .I don't want checkbox ,instead I want "yes" or "no" and I want "no" columns to be bold ,it is easy to do that on web forms by using prepair event or so on ,but her...more >>

Building a Single Assembly DLL with C# and C++ Code I am trying to create a single assembly composed of managed C++ and C# code, and I want to do this on the command line. I have confirmed that I can do this in Visual Studio 2005 using the steps described here: http://blogs.msdn.com/frankp...more >>

IntelliSense stop working in my C#... And that's happening just in one solution, in others everything seems to be ok... How do I fix it???? ...more >>

Hi, Is it possible to create a user control (for a windows application) that is not rectangular but, for example, is like a circle? When I put two controls close each other in a form, you can always see the edge of the overlying control... Thanks, Mats-Lennart ...more >>

I have a tab control in my form. I am trying to create a dynamic pie chart. If I use the following code,it works fine on the main form. this.CreateGraphics().FillPie(brushtargeted,240,200,200, 200, 0, inttargeted); However, I want the pie chart to be on tab control area and if I try both o...more >>

Hi I am a new c# programmer since my project let java on the tablet to do programming on windows. I was building an application all customized. I had : 1. my own custom widgets (text areas, buttons, backgrounds). 2. what I called my components (group of widget ) ex: group of my buttons...more >>

I'm looking to populate a byte array of some fixed size to send out over a UDP connection. The data in the byte array is mixed between characters and binary. I'm a beginner to this language. I can assign the character data by the byte. However, I'm not sure how I would assign a binar...more >>

I have a class object that creates and uses a System.Threading.Timer. In the destructor for my class I cancel the timer using timer.Change(infinite, infinite) then I call timer.Dispose() to clean it up. I get an exception about unable to access a disposed object when I call timer.Change. Th...more >>

Is there a way to know, when we get an "ONChanged" event from the filesystemwatcher, what actually changed, file, last access, last write, etc? Seems they are all bundled into the one event?...more >>

How do I exit windows from c#, without using ExsitWindows API function??? ...more >>

in the following statement why we have to give Dataset a name? what is it used for? Dataset myDataset =new Dataset("name_of_Dataset"); what is "name_of_Dataset" and what is its usage? thanks ...more >>

Please excuse the double post if your reader shows this as a new and as a reply. I can only use the web interface and it puts my reply 34 pages in. I am getting an error while trying to do a LDAP lookup using the DirectoryEntry Object. What is caught is: System.Runtime.InteropServices.CO...more >>

sorry, this is the continuation from my previous posting. Private Sub oBackupEvent_PercentComplete(ByVal Message As String, ByVal Percent As Long) ProgressBar1.Value = Percent End Sub I need some help translating this into C# or implementing it. There is a Percent_Complete event expo...more >>

Hi all, I am using SQLDMO.Backup for backing up SQL server databases. I need to implement a progress bar to show the progress. I have some sample VB code that is like this: Dim WithEvents oBackupEvent As SQLDMO.Backup Set oBackupEvent = oBackup ' enable events ...more >>

I've created a strong named assembly and added it into the global assembly cache. How can I add this to the list of assemblies VisualStudio.NET lists when adding a reference? I always have to browse to the dll and select it. I've installed 3rd party products and had these show up straight aw...more >>

## i have a table like this: myID myName ------------------------ ----------------------------- 1 aaa 2 bbb 3 ccc ## in VS2003, i write code: // // step 1: create a dataset, and load data in tab...more >>

One of my coding partners swears you can capture the network login name so that we can use it to set security levels. If that can be done how do you do it. References to articles etc would be helpful...more >>

Hi, Is there any C#-code available which demonstrates how one can create an appointment (with for example the OutOfOffice property set to true) for an Exchange Client (Outlook) using WebDAV? Cheers, Chris...more >>

I am porting some of my buffer class code for C++ to C#. This C++ class allocates a block of memory using m_pBuffer=new BYTE[...]; But since the class is also used for pointers for funtions that uses raw MMX and SSE power, the starting pointer MUST be starting at a 16 byte memory boundary...more >>

How to read information from .lnk file? I'm interested in "Target" and "Start In" properties... thanks ...more >>

While working multilingual with Form application which uses default application context by setting CurrentThread.CurrentUICulture we can solve almost all problems, BUT while using custom application context I have to add reloads to each one of forms envolved, due for some reason it looks like...more >>

hi guys: I have a task that need a windows application and a web applicition.That windows application run in the client side and web application run in the server side. My question is can I add that two project in one solution. regards jiangyh thanks in advance.greetings. ...more >>

Do i have to loop trough a datagrid in order to find and select a row just being inserted in the dataset connected to the data grid? is there any event i can capture in the datagrid to obtain the inserted row? I need to obtain its position in the datagrid... Any help is really welcome. ...more >>

I managed to lose the licenses.licx file and now the project is complaining "error reading resource file licenses.licx..." I am using a mixture of Infragistics and DevExpress controls. How do i get the file back (i didn't create it in the first place), regenerate it of whatever? Thanks....more >>

I've got a Listview control (Detail mode) that I'm adding rows to on another thread from a DB query. The result is about 32,000 rows ans takes a while to finish. I'm adding the rows like this : lv.Items.Add( lvi ); It seems the entire control is redrawing even though usually the new rows ...more >>

Hello, Does anyone know how I can add post-build steps to my C#.NET project using user/system environment variables? For example, I have a user environment variable named "CommonPath" which points to "C:\CommonPath" I would like to copy my resulting DLLs to this directory. Clicking on ...more >>

I have some problems with the way I am showing the BLOB fields in the Image web controls. It does work on my localhost though sometimes I need to hit Refresh for the images to load properly. However, when I try to access the same page from another machine or when I test the code on a remote serv...more >>

Hi, I am trying to download a file from a remote webserver. I create the following: string username="remoteusername"; string password="remotepassword"; string URI="http://remote.target.server/getdocument.asp?ID=sometest.pdf"; NetworkCredential nc = new NetworkCredential(username, passw...more >>

hi i want 2 run apps which i have coded with C# on machines that don't have ..NET installed and without installing .NET with the setup project u can say i want a way 2 compile msil 2 binary files thanx...more >>

Hello, How to input special characters inside xml like < (Less than) , > (Greater than) as a text Thanks,...more >>

I have the following asp:checkbox as a row in my datagrid. and im trying to write code on the onCheckedChanged event of it. The code im trying to write is incorrect as im getting build errors. What im trying to do is populate a label on my aspx page with the contents of the row in the databa...more >>

Hiyall! I have a RichTextBox inside a UserControl which should be able to indent a block off text (or UnIndent for that matter) like the SourceEditor of VS2003 or WinWord does. All controls on the form (except for the RichTextBox) have TabStop=False and I have a KeyDown event handler which ca...more >>

Dear friends, I set a form into MDI form with a background image(or some controls), it away in front of the child form which I call at runtime. I get know this doesn't happen at Visual C++ 6.0, or Visual Basic 6.0. I need your help to solve this problem. Thanks so much ...more >>

I understand that if I don't assign a *local* variable before I use it, the compiler will generate a "Use of unassigned local variable" error. What I don't get is why doesn't the compiler just implicitly assign a default value to my unassigned variable? At this point you are getting ready t...more >>