I am developing an abstract class which implements IEnumerable<T>. I need the actual implemented methods here to be abstract as well - they will be implemented by MY subclasses. However, I cannot seem to get the explicit interface method to accept being abstract. Take the following simp...more >>

Hello, I am creating a web browser and have some questions: 1. What code should I add so instead of clicking on "Go" I can press enter? 2. How can I create Favorites? Mateusz...more >>

Hi I am developing a wrapper for a C++ SDK DLL built for a video capture card. After opening all channels on the card i call the function StartVideoCapture(IntPtr channelHandle) what is supposed to happen after that is that when the data stream is reday the DLL should raise an event throu...more >>

I am writing my own little video player, using AxMicrosoft.MediaPlayer.Interop.AxWindowsMediaPlayer, and i want to add stats when in fullscreen. I am able to Draw to it with GDI+, but since there's a high framerate, it flickers... HWND = FindWindow("WindowsForms10.Window.8.app.0...more >>

I want to be able to capture a screenshot of a windows form that is hidden. My goal here is to create a form of any particular size (the size could be larger than the screen), get a screenshot, and save it to a image file. I know how to capture a screenshot of a form but unfortunately if part...more >>

Hiya I have a string with about 300+ characters, how can i insert a line break or another character every 50 characters for the whole string? Paul Roberts ...more >>

Hi Group, I want to execute a vbs file from an aspx page. With no success. For instance, simple script that create a text file with 1 line in it. Works fine from commandline or dblclicking on it. But no luck with asp.net. I have used : System.Diagnostics.Process and Microsoft.Visual...more >>

Hi I'm using EnumWindows (User32.dll) function to get all currently open windows and fill a ListView. Then I want to close the selected windows using EndTask(IntPtr hwnd) or EndTask(IntPtr hwnd, bool fShutDown, bool fForce) (User32.dll) but always return false and not close de window. Does anybo...more >>

Hi Is it possible to 1: Move a row up/down serverside. Like myGridView.Rows[1].MoveUp() I can't find any way to do this. OR 2: Edit the datakey values on a GridViewRow. If I can do that I have solved the move up/down problem because I can switch data between the rows. Best regards ...more >>

I have created a simple logger for my ASP.NET 2.0 application. I have this static function. My problem is that no data is created in the test.log file. I have added ASPNET user account administrator rights. What am I missing here? namespace MyNameSpace { public class LOG { public ...more >>

I have several structs in a DLL. When I reference this DLL in other projects and point to any of the structs, none of the comments I've placed with them appear. For example: /// <summary> /// Tracker="someserver\CORE_SQL_TEST_1" /// Project="someserver\CORE_SQL_TEST_1" /// </summary> publ...more >>

Hi I am reading all the mails from a particular outlook folder. I have to check whether i have read the mail earlier or not which i am doing by checking id of mail provided by outlook. Problem is as the number of mails increases it becomes slow coz it goes to everymail and check whether i ...more >>

I have this code: SqlConnection conn = null; string Table=""; int rCount; conn = new SqlConnection(sConn); conn.Open(); SqlCommand cmd = new SqlCommand(); cmd.CommandText = "dbo.[RecepiesSearch]"; cmd.CommandType = CommandType.StoredProcedure; cmd.Connection = conn; ...more >>

Hello, We have a textbox on a web form (ASP.NET 2.0 - C#) that is for end-users to enter e-mail address(es). The valid entries are: name@company.com name1@company.com;name2@company.com;name3@company.com (notice no space after the semicolon) name1@company.com; name2@company.com; name3@compan...more >>

Hi there, the code line fixed (char* pChar = s) throws the error C:\Dokumente und Einstellungen\Pascal\Eigene Dateien\Visual Studio Projects\PascalsMailer\QuotedPrintable.cs(310): Missing compiler required member 'System.Runtime.CompilerServices.RuntimeHelpers.OffsetToStringData' al...more >>

Hi, I am trying to make an ActiveX-like control in C# per the following article: http://www.c-sharpcorner.com/Code/2003/March/ActiveXInNet.asp The control I make compiles, but when I added it to my HTML Application (.HTA) file, it won't display. I found another article that said this wou...more >>

Hi All, Would any of you have a sample code to implement something similar to the Visual Studio toolbox? I'm trying to create a form that has a toolbar going in and out of the form. ...more >>

I have created a console app that simply prints out a message a couple times, then exits, here is the code: <code> for(int i = 0; i < 10; i++) { System.Threading.Thread.Sleep(500); Console.WriteLine(String.Format("Sleeping...{0}", i)); } Console.WriteLine("Don...more >>

Hi Folks: I have a question about the Page_PreInit and Page_Load events in a web application. My question is: can I count on the Page_PreInit having completed before the Page_Load event starts. (I recall that someone told me in VS2003 that you could not count it!) I'm using C#.NET 2005 ...more >>

Can someone show me how to delete all the items within my gridviewcontrol so I can repopulate with new data? Thanks ...more >>

Any suggestions on how I should handle this? I was asked to convert a small web application that was written in classic ASP into ASP.NET. The original site uses some VBScript to interface with an ActiveX control, which is contained in a CAB file. Somehow, I have managed to use the origina...more >>

I've asked on sql.programming, but got no answer: Is there a way to get all the SQL Server instances with SQL SMO from a remote computer? I got few instances on some remote IP and how to list them, how to pass to the function this address - could it be done at all? Second question: ...more >>

Why doesn't this work?\ string _s = String.Format("{0:M/d/yyyy}","5/20/2005 12:00:00 AM); Response.Write(_s); It kicks back the full date and time...I just want the date to show and not the time. What am I doing wrong? ...more >>

Hello -- I've been struggling with this problem for over a day now. I'd like to know (without passing parameters) which class, and preferably, which method of that class has called my function. I can get the calling assembly rather easily, but let's say within Assembly X I have class A ...more >>

I need to create a C# web service that returns a recordset for an ASP classic applicaiton to consume. My problem is that so far the only thing that I have found I can return is a dataset using ADO.NET and of course ASP classic uses ADO and doesn't understand a dataset. Any suggestions??...more >>

Hi, I have two questions about Reflection. One I think I know the answer to but will ask anyway. 1) I can delve into a component or executable and get all the way to the method within a class. But I can't see the code inside the method. Is there a way to get access to that? 2) This ma...more >>

Why can't I use an int[] for a key? Doing so evidently doesn't result in unique IDs being generated. I can convert the array into a delimited string, which works fine, but then I have a good deal of overhead parsing/casting the ints back. I'd obviously use a (jagged)multidimensional array of...more >>

Ok....Super newbie here in C#... I am trying to write an application (myapp.exe) that will start an application called abc.exe and if it is terminated, will restart it. (or rerun myapp.exe) I have tried it in several scripting languages, but they tend to use ntvdm.exe and peg the processor. ...more >>

I need to know how to take data from a dataset and write it to an Excel spreadsheet. Please, Please , do not send me any MSFT examples. They, for the most part, are useless I'm just looking for a little code snippet example ...more >>

C++ template use constraint by signature,It's very flexible to programmer but complex for complier, and at most time programmer can not get clear error message from complier if error occur. C# generic use constraint by type,complier is relaxed, but it is very limited to programmer.Is there a...more >>

I am using reflection to read an assembly and I have a class that has only a private constructor. However when I use the following method. Type.GetConstructors(BindFlags.NonPublic); It does not pick up the private constructor. Instead it reads that there are no constructors. How do I ...more >>

Hello, How can I set timeout on the send for an asynchronous socket? I use the setsocketoption's timeout but it does not seem work. The program is blocked at the socket's EndSend step until the remote side closes the connection. Thanks in advance, Franky...more >>

hi folks, is that possible in c#? : i have for example a simple field class, which contains a value, like this: public class Field { private object value; ....... ....... public object Value { get { return this.value; } set { this.value = value; } ...more >>

i wonder if anyone can help... i have an abstract class called "Message" that impliment's icompareable on the property "TimeSent". i have two types of messages that inherit the "Message" class - Timed Messages and Questions. i get some of both and put them into an array list and then use the ...more >>

Hi there, In C# I'm using a DLL import attribute to call a function from this DLL. This function was written in an older version of Vb and I know the name of this function and it should return an integer. public class Class1 { [DllImport("DllDemo")] public static extern int ...more >>

Hi, I have some dropdownlist web controls on as aspx page. I want to loop through them on first (!IsPostBack) Page_Load in order to populate them. The foreach control structure seems to be a good condidate for this though I'm having problems getting the right syntax/form. I've been trying va...more >>

Hi, I've never developed in CSharp before and I'm trying to adapt an existing user control written in CSharp. The user control inherits from the DataGridColumn. I'd like for one of my controls properties to override that of the DataGridColumn. Could somebody help with the syntax? Currently my...more >>

Hi All, I have a panel on which various components are placed. I now need to scroll the panel vertically using an exteranal VScrollBar component. Please help me with the code on how this can be achieved. Your help is appreciated. Looking forward for a quick reply. thanks & regards, At...more >>

Hi, In an effort to improve my own code and try to teach others that I work with that unit testing IS MANDATORY. I'm interested in examples of unit testing that other people are using. How many folks rely on NUNIT? Do you create a testing class per application, per class, per assembly ...more >>

VS 2005 Pro. I am getting the following error when I try to export a report to PDF or = any other format using Crystal Reports 11 library. Does anyone knows = how to fix this problem, the same code work fine in .NET 1.1 I have search for this error in Google and BusinessObjects website bu...more >>

Hi, I need a regular expression that will match only the tags that have nested tags inside them: Input: <control id=1><control id=2></control></control><control id=3></control> Goal: The regexp should match <control id=1><control id=2></control></control> When i use this regexp: ...more >>

How can set the SQL connect string , when I connect to SQL Server via TCP/IP? What else I need to do? ...more >>

I don't know why. I have a solution which has many projects includes DAL, BLL, componets, etc. Under DAL, it access OpenExeConfiguration to gather connectionstring[0] (It access aspnet.mdb, but my solution is win-form!!), which returns the value not my expected. But connectionstring[1] is r...more >>

Hi, I am new to XML documents. I have to write an app that will pass an XML document to a remote app. This may be by remoting of a web service. Don't know yet. The document structure has not been specified yet. So I thought I could create an XML schema in my project with a best guess structure...more >>