Hi Group, In my project I m using "RequiredFieldValidator" for the validations of text box, There are two TextBox, say "txtBox1" and "txtBox2" now I want to make either of TextBox mandatory, means atlest one should contain some text and both should not be empty at a time.(I am using ASP.NET...more >>

I am using ArrayDataView from the following link, my question is how do I apply column styles to this DataGrid that uses ArrayDataView instead of DataSet http://www.codeproject.com/cs/database/BindArrayGrid.asp I have tried the following code, but it has no effect Private Sub CreateCo...more >>

Senario: In a machine i have Ethernet Lan card and Wireless Card. When i trying to read the Mac address of those thro WMI services or Parsing IPConfig using c# code i am getting Mac address of both the cards. Help Needed: I need piece of code which will always return me only Ethernet Lan ...more >>

Hi NG, I'm trying to send a XML file. The receiver should be able to work with the content without saving it as a file. (Best with XMLReader, but that will be part of further postings ;) ) I tried it the following way, but it doesnt work out. Please have a look at my code: Sender: lon...more >>

Here's my problem. Have a database interface with several methods. I created a database class to implement the interface, and a set of unit tests to test each method. Now I want to support another database provider. The implementation is very easy: I simply create a new database class, and imp...more >>

Hi all, I am having application with threading in it. While my thread is running i want to show one animated gif file in panel control. How can i do this. Can some one give me some idea about doing this or control to be used for doing it in .net. Any help will be truely appreciated....more >>

Hey, I've got a few apps written in Visual Studio 2003 .NET that I've converted to Visual Studio 2005. I noticed that when I do the conversion, the old style of windows controls such as buttons and progress bars are not converted to the new style. How do I convert them to have the new look and...more >>

Hi all, Can anyone tell me how to display a image and some texts in tooltip while mouse over a image or imagebutton in asp.net ?.. plz give me some code samples for onMouseOver event... Thanx in advance... Regards, Krish. ...more >>

when i use delegate like this: ----------------- [System.Security.Permissions.PermissionSet(System.Security.Permissions.SecurityAction.Demand, Name = "FullTrust")] protected override void WndProc(ref Message m) { delegate_ReplyFromDataProcess = new PrepareDelegate_ReplyFromDataProcess(R...more >>

I have a StringBuilder that has a string with 12,000,000 characters. When I do a ToString(), I expect to have ~25,000,000 bytes worth of memory, yet, I end up with ~43,000,000 bytes. That's almost double the size. The string returned from ToString() is actually of size StringBuilder.Capacity...more >>

I am trying to find a way to convert a string date from the format 01/05/2006 to 01/05/06 or 010506. How would I do that in C#? Thanks, Tom ...more >>

Is there a reason why the BindingList constructor doesn't create a new BindingList? Create a form with four ListBoxes and the following will result in them all containing the exact same thing. The expected behavior would be for each of the first three to contain different sets numbers. ...more >>

Can someone give me a rough idea how a value is obtained for a trigonometric function like Math.Sin? What is the algorithm? I'm finding that putting a large number in this function ( > 8000 ) really slows things down. Why is that? Thanks, Owkmann ...more >>

How do I get a list of Bluetooth devices that my system ( i.e Laptop) is connected with. Also if the device is available in the list, but disconnected I should be able to connect to. Can I do this programmatically? Vijay ...more >>

Hello, Can somebody please tell me how I can read values from the following configuration file. It is generated by VS 2K5 Express when I add settings using the project properties front-end: <?xml version="1.0" encoding="utf-8" ?> <configuration> <configSections> <sectionGroup ...more >>

Sorry this is OT... I'm looking for recommendations for generating license keys (machine specific) for our application. I was looking at Quick Licenses Manager which looks pretty good. Is there any favorites? -Joe ...more >>

I am not sure how to use this even properly. When I have it as follows I have to click on the tabPage1 for anything to show. TIA. namespace TabLayout { public partial class TabLayout : Form { public TabLayout() { InitializeComponent(); } ...more >>

Hello I have just started using .NET and C# from a c++ background using win32. Now i want to do something that i used to do, without using the win32 API. I use Spy++ to get a HWND from another application in hex form from a RICHEDIT control. now i want to turn this hex value (HWND) into ...more >>

I am trying to instantiate a Windows Form that I have created in C#. The problem is that I am instantiating it within a C++ .dll. Here's my example of what works and what doesn't: WORKS: ///////////////////////////////////// START CODE /////////////////////////////// #using <mscorlib....more >>

Is there a way dynamically execute a a piece of code at run-time in C#? Such as representing a custom method "UserInfo.GetEmail()" as a string and get 'evaluated" during execution and return it's value? this method represents an already existing method in my app. I'm trying to avoid creati...more >>

Hello, This isn't specific to C#, but that is what I am using to develop my app. I am trying to figure out how to organize my code and I'm not sure what the best way of doing it is. For the sake of simplicity let's say I have three classes - car, engine, and body. The car class has an insta...more >>

What is the best way to read datas in a byte[] that contains several datatypes? Some of the datas needs to be peeked before being read, so I can't use anything that advances while reading without permitting peeking any number of bytes first... Normally, I would have used a StreamReader b...more >>

Hello Guys: I have a main window when my .exe loads. It loads up with a menu system. What I would like is when a user selects an option from the menu: that the form loads in the portion of my application BELOW the menu, instead of opening a new window. I was thinking of using a panel i...more >>

I have a DataTable which has the headings in row 0. I do the following: PayDates.DataSource=mDt; PayDates.DataTextField= "Pay Date"; PayDates.DataValueField="Pay Date"; PayDates.DataBind(); PayDates.Items.Insert(0, "Select Date"); But when I look at the DropdownList, the 2nd item, after...more >>

Hi All, I have couple of servers in DMZ , I need to do some File I/O on them from my internal servers...The File I/O are going to be quite large so obviating WebService option (not sure about Remoting....) What alternatives do I have which come canned? Don't wanna write a server or client code.....more >>

I am getting an error: Use of unassigned local variable 'postDateRow' But it is assigned. Here is the code: int payDateRow; int postDateRow; for(ktr=0;ktr<= rtDataBean.dataTable[0].GetUpperBound(0);ktr++) { mDt.Columns.Add(new DataColumn(rtDataBean.dataTable[0][ktr])); ...more >>

The following program simply sets the icon of a form called form1. When I get the name of the embedded icon using GetManifestResourceNames(), I store the name in a string variable called s. The value of s is "test2.icon1.ico". This program will compile and run just fine from visual studio ....more >>

Hello, I am working with an editable column in a datagrid for the first time. I am using VisualStudio.Net 2003 on the ASP 1.1 framework. I am having trouble with setting the width of a text box that is generated once the 'Edit' button is clicked. The text box that is generated seems to...more >>

Hi guys, i've seen it in VC++ but in C# how do i conver string to char[20]?? in c++ is like http://support.microsoft.com/?kbid=311259 Regards ...more >>

Hi There - The code that follows does not work. I'm trying to dynamically invoke a method that contains a params-attributed parameter. However, the array of objects that are passed into the method are not put into an array, so the method signature never matches the object array of paramet...more >>

Does anyone know where to find code to use Autofill to add user names and passwords into a login screen. For example: We would like to use Single Sign on in SharePoint Portal server, but need to be able to use it with several windows applicatios too. ...more >>

Hello all, Please excuse me if this is not the right group to ask in. Assume that I have a Person object that reflects data held in a datastore (DB, XML FIles, etc). Gernally, where should the job of populating that object be bound? Should code that instantiates the object fill it? ...more >>

-- Warm Regards, Lee "Upon further investigation it appears that your software is missing just one thing. It definitely needs more cow bell..."...more >>

I'm new to Crystal Reports, so this may be a dumb problem, but I just can't figure it out. Basically, I want to control the selected data in the C# code as opposed to Crystal Reports (since SQL is truly for querying, and Crystal Reports is more a reporting tool). The only way I've found to d...more >>

I have a text object (see my previous post) that I've added some functionality to. But I don't want the user to be able to change the text without calling my routines. So I added the following code: public override string Text { get { return base.Text; } } but ...more >>

This is a very strange bug (I think it's a bug) I have a class: Test.MyNamespace public class MyClass public static int GetNumber(); Then in another class I have added the using statement like this: using Test.MyNamespace; Then later I use the above class int i = MyClas...more >>

Hi Forum, Application auto reload after on cold boot: Is there any possibility of autoreloading pocketpc application on cold reboot. The conditions, and configuration could be stored in some boot file that could be run automatically after the device cold boots. SSE technolgies, who we p...more >>

Hello all! I have some difficulties to understand the syntax of String.Format. I didn't find any nice articles of it in MSDN either. Does anyone of you know any documentation of Format's syntax so I could get start with it? Cheers ...more >>

I'm trying to serialize my menubar for use later, however I want to use XML to serialize this list. Not a problem with the Text property of the MenuItem control, however the ClickEvent is a bit trickier. I managed to find some code in the MSDN on getting a class method (and therefore a delegate)...more >>

Hi I'm sure there is a very simple answer to this but it's got me stuck for hours! How do you change the properties of parent forms? e.g. if you have a dialog box that has a textbox on it, when the user clicks an OK Button, and the value is saved to the database, how do you then update the ...more >>

Hi, If a user has selected enlarged fonts for the OS in general, where is this reflected in the registry base. Propety is found here via OS GUI Control Panel->Display properties->Settings->Advanced->General->Display->Dpi settng. regards Jesper, Denmark ...more >>

Hello. Is there a way to add custom code that is executed every time a ListViewItem is added to the Items collection of a ListView control? There does not seem to be an event that I could hook into, and I can't figure out how derive a custom ListViewItemCollection to override it's Add() Method.....more >>

Use Win2003 Server and VS 2003. When I'm trying to debug COM+ lib, I've stumble over ShadowCopying feature, when my dll being copied in temporary folder, and I can't step in my dll. No breakpoits are rised. How to turn off Shadow Copying or to tell VS to debug moved DLL? -- WBR, Mich...more >>

What is the default value for the int QuoteParameters.Quote_Claims[0].Claim_Code when it is instantiated like below? public struct Claim { public int Claim_Code; public System.DateTime Claim_Date; public bool Claim_Outstanding; public decimal Claim_Amount; } public class Quot...more >>

Is there any way to solve process synchronization between more than 1 resources. I'm already trying to use Mutex.WaitAny, but I confused to execute Release method from the corresponding mutexes. Any comment will be appreciated. Best Regards, ...more >>

Hello everybody. I have a problem importing a function from a Dll. = This dll was made in C++. I get in troubles when I try to use the = following function:=20 Function DLL DWORD __stdcall ReadWithArray( byte MyByte, =20 TStruct* pStruct,=20 ...more >>

By default, DB Connection is pooling ? (SqlConnection, OdbcConnection) Or I have to write my own Connection Pooling class ? ...more >>

I recently came accross an article that stated that there were unresolved issued with calling native (i.e. "unmanaged" C++) from managed C++. Does anyone know what the precise details of this issue is, and if there have been any fixes/workarounds yet?. I am using C# (VC7.1) for my fronten...more >>

Is there any examples of Drag and Drop how to handle in C# ? ...more >>

Hi, I am a newbie to C# and Im trying to redirect standard input, output and error of a console program written in C (MS VC 6.0) to a textbox on a form. The code for the redirecting looks like this: private System.IO.StreamWriter c_StreamInput = null; private System.IO.StreamReader c_Stream...more >>