Hello, I've written a high performance web app with C# and it completely relies on static hash tables (using sync) and classes. Under real world stress this app is handling 5 get requests per CPU per second. I've gone from a single-core/single-proc, to a dual-core/single-proc to a dual-c...more >>

How do I determine if there are any rows within the BindingSource that have changed prior to calling the EndEdit(). I need to do this in order to archive some records and if I call the EndEdit() then it also wipes out the orginal version of the dataset record with the proposed changes., Howe...more >>

i wanna develop a splash screen in my windows application using c#.While splash sreen appears at background application componets should gets loaded as soon as component or dependencies gets loaded the splash screen should get closed permanantly and the main form should appear. Pls help me...more >>

Hi All, I need a regular expression to be used in an ASP page which would allow a user to enter: 1000 as well as 1,000 i.e. an amount without comma as well as with comma(for example 10,000 or 100,000 etc.) If anyone's aware, please let me know. I am in urgent need to use it. Thanks...more >>

My customer needs a DateTimePicker in VS2005 C# that can show emty date values (blank/space/null). I need a control that: 1. Can show a blank value 2. Detete a date when hitting the delete and/or back key 3. Allowse the user to enter yyyy-MM-dd date format manually 4. When tabbed into the...more >>

This is probably a stupid question. I'm new to C#, and I am having a string problem. I am storing strings in an XML file. Example, a connection string: DataSource="servername/sqlservername";InitialCatalog="nameofdatabase"; IntegratedSecurity=true; When I load this from the XML file, a...more >>

Hi, We have a part of our application that deals with millions of records and do some processing of them. We've achieved a pretty good performance gain by developping a custom DateTime.ToString and a custom int.ToString, but we can't find any clue on doing for decimal and double, which would ...more >>

So I have the need to take UtcNow and change the Second to zero. Just wondering how many ways there are to do that? ...more >>

Hi, Is there anything like C++ CFindReplaceDialog in C#. Thanks swje - 3/29/07...more >>

Here is the secenario: I create a web service to read in xml string and then save it to a network drive, say : \\fileserver\xml\ I also have a windows application to call this web service. Now the problem is: If I run this web service with VS2005 built-in web server, it has no problem at all...more >>

Working with my first XML file and the first time I have used the XmlTextReader class. Reading a book on this subject, I have constructed code which I thought would navigate thru the file and retrieve the values for each of the "nodes". Running the debugger, I can see that I am navigating ...more >>

Hi, I have a requirement to execute a .bat file from c#. I am aware of the process to do so using System.Diagnostics namespace. However, I need to replace the values in my .bat file at runtime when it is called by C#. eg. In my .bat file "C:\test.bat" -xml "C:\07.xml" -xsl "C:\fo.xsl" "c:...more >>

I have some code for resizing image (create thumbnail) but there is no compression. Thumbnail image is smaller in pixels, but in kilobytes is bigger. How can I create smaller file? I need code in VB or C#. // Get the path of the original Image string displayedImg = Server.MapPath("~") + "/...more >>

When doing a "callback" I normally call a webControl's RenderControl method to get the html for that WebControl. This has always worked great in the past, but it does not seem to work with an asp:treeview control. When I call MyTreeView.RenderControl, the html that I get is not what I expec...more >>

How do i do Pessimistic locking in ado.net with c# Thanks DaveP ...more >>

Hi, I have a DataGridView that displays data from one table from database. I didn’t implement any my code, I just used wizard to do all the work with DatagridView populating. Visual Studio generated strong typed dataset and binding. And here is my problem. I try to update the database...more >>

When I create a Form, the VB IDE creates the following files in the following hierarchy: Form1.cs Form1.Designer.cs Form1.resx Both Form1.cs and Form1.Designer.cs are partial implementations of a single physical class definition. The VB IDE properly recognizes Form1.cs as a Form ...more >>

Hello I have a textbox where i check for a "return" or "enter" keystroke for that i use the txtBox KeyUp and checks the e.KeyCode value. But when i do stroke the return or enter kay, a sound (ping) sounded. How can i prevent that ping? Kind regards Johnny Jensen ...more >>

I am trying to read a config file of a dll, but when I use ConfigurationManager.AppSettings["key"] It refer to the application.exe.config file that I am running. Any one know how do I force it to read the dll config file instead of the application config file. I look into ConfigurationManager...more >>

This error has the following description - "Overloaded shift operator must have the type of the first operand be the containing type, and the type of the second operand must be int." Could you please explain the need for this restriction? In fact, i want this to be an insertion operator whe...more >>

I tried one of the links at www.codeproject.com/dotnet/simplewebservice.aspx , but i got stuck at the point after adding an installer. When selected Add->Project Output. The combo box should already have MyService.Service1, but it did not have that. Can anyone refer to some other good tutori...more >>

We are looking for a XSLT 2.0 transform engine that we can include with our commercial product and I was wondering if anyone had any ideas? We already looked at SAXON, but it looks like its license doesn't allow for redistribution. Any other ideas would be great? We would like a native .N...more >>

localhost.BankingService bservice = new localhost.BankingService(); int balance=Convert.ToInt32(bservice.CheckBalance(InfoAccount.pincode)); // Line of Error How can i remove this error? I get the error above. Here are the definitions for the functions CheckBalance() and SearchDatabase()...more >>

I am writing a code that will look at several peoples travel patterns and find people beeing at the same place at the same time. I would like suggestions on how to organize this. What to use? A table or arraylists or what? ...more >>

I have the following: public class Matrix3D { private const int SIZE = 3; public double[,] matrix = new double[SIZE, SIZE]; public static Matrix3D operator *(Matrix3D lhs, Matrix3D rhs) { Matrix3D result = new Matrix3D(); for (int i = 0; i < SIZE; i++) ...more >>

im writing a service that will be on a app server this is one of many service's to process Recordsets from Sql Server... 1 service may have 20 Processes to Complete example main class PreProcess() method CleanNames(); method updateNames(); methodr ValidateContracts(); Various things must...more >>

Hope I'm posting in the right place. Have spent more hours than i would like on this problem and still have not solved it. I'm using SQL Server for the db. I have a GUI application with 2 multi-line textboxes that can be populated with Asian characters. I can't get the Asian characters to ...more >>

I am fairly new to .NET programming so this may be a simplistic question. I wrote a C# application that reads and writes files. If the program resides on a local drive everything is fine. If the program resides on a network drive then I get the following error. System.Security.SecurityExce...more >>

Hi: How would I bind a list to an enumeration so that enumeration value becomes list values and enumeration constants becomes list text? Do you loop through enum and add manually or is there a way to databind like when using a table as list backing store? Thanks, Charlie ...more >>

I can scroll a WebBrowser to the bottom like so: if (webControl.Document != null) webControl.Document.Body.ScrollTop = int.MaxValue; But, if I include a proper DOCTYPE (for XHTML 1.1 DTD) like so: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11....more >>

Ctrl+E, C and Ctrl+E, U will comment and uncomment out multiple lines. However, it has two issues: 1. It will not include the // for empty lines, which makes it hard to 'see' that one group is altogether commented out. Since programmers very often use spaces to improve readability, this happ...more >>

Hi All, int a; string b; float c; Test(a,b,c); How do i get the the Test function to print a b c public static Test(params object[] inputParams) { foreach (object inputParam in inputParams) { print(something); } } ...more >>

I am working at a company that is going to publish a product on the market. The code is currently in .Net 1.1. The developers would like to migrate it to .Net 2.0. Management has concerns about users having to install the .Net framework before using the product. They want to "minimize any...more >>

I am apparently unable to print landscape... maybe I'm doing something wrong here. I am adding a printDocument to a form. The form also has a textbox containing the text that I want to print and a button that triggers the printing. All properties of all objects are left intact for simplicit...more >>

Hello All, I need to determine speaking time, but without pressing any button (such as start speaking/stop speaking), e.g. how long each person(microphone) was speaking during one meeting, and s/he should see results in real-time. And I am stuck, do you have any solutions?? Thanks in advance...more >>

I have a project with 50+ forms that needs to be made topmost. Is there a faster way than manually setting topmost=true for all forms in the project? Then how do I guarantee that dialogs get set topmost? Thanks, James ...more >>

hello experts, I want to get attribute type (whether single value or multivalue) from AD forest/domain. Does any1 know how to get that. Or at least how to get AD schema using C#. Any help/links wud be appreciated. thanks, shashank kadge ...more >>

I have an enum. I want a struct of data associated with each one. Then, I could use the enum to access the data as needed. In other words, I want the enum to represent more than just a unique integer. I want it to represent a struct. Is there a way to do this nicely? Searching seems to sa...more >>

I have tried sqlCommand1.Parameters[0].Value = float.Parse(textBox1.Text); but the debugger says that it cant see the parameter How can i gain access to the parameter in C# EXpress.thanks in advance(i am newbie). ...more >>

I'm making a system tray application, and I just can't figure out how to make it hide on execution just like it used to in C++. If I have a button the form and in the button's Click method i have {this.Hide();} The entire form will disappear. But if I put "this.Hide()" in the from's onLoad ...more >>

Apologies if this is a daft question but I'm new to c# and everything is strange to me. I have written a SOAP Extension class that intercepts a web service that returns MIME attachmernts as part of a multipart. I have split the MIME into strings which I write to a file via a BinaryWriter. All ...more >>

Hello All i am trying to read a large txt files -may 1 GB-, which coze my program to hang, and i need to know if there are techniques that make this without hang and do it faster if you know something can help. please tell me. that is my code , and i had run it for a txt file its size is 4...more >>

Apologies if this is a daft question but I'm new to c# and everything is strange to me. I have written a SOAP Extension class that intercepts a web service that returns MIME attachmernts as part of a multipart. I have split the MIME into strings which I write to a file via a BinaryWriter. All ...more >>

Last year I read an article about using unit testing GUI. I think it was a patterns & practices article, but I can no longer find it. The article described how to unit test GUI using stubs. Can anyone help me find the article or similar articles? ...more >>

Hallo, ich m=F6chte, dass bei Eingabe eines Zeichens =FCber die Tastatur (alle Zeichen ausser Funktionstasten) eine Aktion passiert. Dazu habe ich die Methode protected override bool ProcessCmdKey(ref Message msg, Keys keyData) =FCberladen. Gibt es KeySets, mit denen ich keyData auf...more >>

"If an instance method declaration includes the sealed modifier, it must also include the override modifier." The C# Programming Language, =A7 10.5.5 Sealed Methods Why is this? Thanks, Mulugeta ...more >>

OK. A bit behind the times, I know; but we're just moving over to .NET 2.0. How on earth do you manage configuration settings in a class library in .NET 2.0? In version 1.1, we used a handy class called AssemblySettings that someone (I forget his name) had written. When the class library wa...more >>

Hi, I am trying to write a generic function and it isn't behaving as expected. I want to avoid having to write custom convert functions for my enums so I want to convert to an int and cast to the enum, this wouldn't compile so I tried a few variations. The cast fails inside the generic fu...more >>