Hi, Using a struct like the following, Marshal.SizeOf always reports 14 bytes yet the struct should be 13 bytes. What am I doing wrong? [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)] public struct GIF_HEADER { [MarshalAs(UnmanagedType.ByValArray, SizeConst=3)] public...more >>

Hi I am wondering if there is any programmatic difference between the String.Empty and the "" for declaring an empty string? Furthermore, is there any performance penalty by doing the one over the other? /Ole ...more >>

A friend of mine has written a nice game with C#. Also, I know there are games such as "Quake II" written totally under .NET framework (not C#, but VC++ .NET). Here's the link: http://www.codeproject.com/managedcpp/Quake2.asp ...more >>

I know one can make games in C#, but are any software companies really using C# to produce anything? What do you think? I use a lot of C# at work, but would like to use it for play/work on my own. I don't want to use regular c++ if I don't have to. I just not that good. Is c# just to slow w...more >>

Hi, I'm pretty sure this is as easy as it gets, but I couldn't find anything in the documentation. I'd like to change the string representation of an int so that the numbers get padded with 0's up to a certain amount of characters: For example I'd like to pad up to 4 characters, then a 1...more >>

Dear Readers, I am writing an application that will be installed on Windows XP Professional in a non-administrative account. Can this program create keys in the HKEY_LOCAL_MACHINE \ SOFTWARE registery section? What permissions does the account which will run this application need so I ca...more >>

Hi all, I'm utter C# newbie, do be gentle. VS2005 Express refuses point blank to install on my box, so I'm stuck with C# 1.0 unless someone can point me to a C#2.0 compiler elsewhere. I have an authentication system rigged up, which is working, but I'd like to be able to run a test like this...more >>

hi folk, what is the c# version of the GwesPowerOffSystem for the compact framework? thanks, elmar ...more >>

Hi, is there a way to hide baseclass members: class BaseClass { public BaseClass() {} public string Get() { return "base"; } } class MyClass: BaseClass { public MyClass() :base() {} new public string Get() { return "my"; } } void Foo() { MyClass m =...more >>

I have a library if C functions that will eventually get wrapped in a class. The question is, should i wrap them in a C++ wrapper and call the wrapper from C# or should I wrap the C functions in a C# wrapper? Anybody got any insight on this? My primary goal is speed. This is an audio application ...more >>

SqlDataAdapter sql99 = new SqlDataAdapter("select OMSCHR,TELLER,CATEGORIE,STUKS,EENHEID,BTWCODE,P1 from ARTIKELEN order by OMSCHR",sqlConnection3); sql99.Fill(ds); MessageBox.Show("1:" + ds.Tables[0].Rows.Count.ToString()); ////////shows 162, so OK MessageBox.Show("2:" + ds.Tables[0].Col...more >>

Hi, I have a this string variable : string strXML = "<greetings>Hello<greetings/>" How can I read this XML information when it stored in a string variable rather than in a "classical" way of being in a XML file ???? PS: I expect a reading solution without having the need to save it a...more >>

I don't know if this has already been noted but I just found out that the intellisense for the y parameter of the SetBounds method is mistakenly declared to be the new Control.Right property of the control instead of Control.Top. ...more >>

Quite new to C# but I am getting quite confused with Array's and ArrayLists. This is probably the same old iteration of a basic question but I can't seem to find a clear answer/example of this case. Basically I want a container that points to a set objects that I can then interate through to g...more >>

Hi. I have created a component (System.ComponentModel.Component) that I place on a form. Is there a way of obtaining the Form.Handle of the form where I have placed my component? Thank you ...more >>

Can I somehow know when I catch an exception on which line it exectly occured? Thanks. ...more >>

Hi All, I need some help. I am sort of not sure how to approach this problem. I have a MAINPROGRAM. This is the core application. I have asked two of my staff to developed two different Windows Controls. Say ControlA.dll and ControlB.dll. As usual I know how to add these .dlls as the r...more >>

i am trying to validate a simple username textbox using RegularExpressionValidator: TextBox tbUserName = new TextBox(); tbUserName.ID = "tbUserName"; string strPatternUserName = @"\W"; // i've tried using "\\W", "\w", "\\w","@\w", "/\\w", etc... // but it always prints my error msg UNLESS t...more >>

Hello, I am an experienced MFC/VC++ developer but I want to start learning some C#. I am looking for a C# Web forms sample which allows the user to enter and/or select some data on one form then after crunching some numbers to present the results on a new form (say in a tabular form) ...more >>

Problem: My company generates its own data export from a propietary database. These (free) tables can be read in C#.NET using a Visual FoxPro driver (vfpoledb). I can read each of the six tables into its own datatable, modify them, and add them to a dataset. It take approximately 15 minutes...more >>

how can I change the system current date (time) using c#? thank you George ...more >>

Hello, I am just starting out with C#. I have a set of controls on a form that I set .Enable = true; or .Enable = false;. Rather than listing all the controls all over the place, I would like to list them in an array, ArrayList... so that I can loop through the array for (int i; i < ...more >>

When you want a class that's basically for static calls, you may want to try a Singleton pattern instead. Static constructs can have a lot of gotcha's, but just holding onto a single instance can save you a lot of grief. e.g. public class WhatEver { private static WhatEver instance = null...more >>

Hi How show 2 lines text (column name) in datagrid | col name | | col name | +---------+ | row 1 | | row 2 | Thanks ...more >>

I don't understand how to construct the following regex: I need to match a word that is made of up alphas and ends with an optional ',' character. For example: ValidWord ValidWord, NotValid7 Not7Valid NotValid7, I thought that [a-zA-Z]+,? would work but it doesn't, it matches the "...more >>

Hi, I inherited form and I writed it's load event: public class frmBase: System.Windows.Forms.Form { .... private void frmBase_Load(object sender, System.EventArgs e) { MessageBox.Show("this event must run after derived class' (frmInherited) load event"); } .... } When I cre...more >>

Hi, Looking for the syntax for a static indexer. For a non static 'access', the following would do: public class whatever { static Hashtable myHashtable = null; // ----- here----- public whatever this[string name] { get { ...more >>

Folks could do with a little bit of help I am using the dot net framework. Whenever im working on my project I need to build it to test it. The problem is that I need to run a batch file before I build my code. Then for complete testing of the system, I have another batch to run, to cre...more >>

I have created a program that creates a socket, etc. It works fine on my development machine. It does not work on any other machine. Is there anything other than the same level framework that is needed on the client? It keeps failing to: listener.Bind(localEndPoint); on Windows 98 an...more >>

Is there a simple way to pass drag-and-drop events to a child control in a UserControl? Here's an example: I have created a UserControl which contains a treeview and some text boxes. I want to be able to drag-and-drop to the treeview from outside the UserControl. Now, when I drag over the t...more >>

Hi! I got a problem when I installed the SP2 for Win XP. I use Visual Studio. net 2003 to develop a C# client and a using a SQL Server 2000 on the server. Before the upgrade it worked fine and if I uninstall SP2 on the client it will work fine. But with SP2, I got the following exception... ...more >>

Hola a todos: Estoy intentando hacer un control y necesito mantener el estado de la siguiente colección que he creado: public struct ColumnaGrid { public string TituloCabecera; public int LongitudCabecera; ......... } [Serializable()] public class ColeccionColumna...more >>

Does anybody have a simple example of appending text to a text file? Cheers, Mike *** Sent via Developersdex http://www.developersdex.com *** Don't just participate in USENET...get rewarded for it!...more >>

How do I get the default namespace of the project programatically ? For example, the following code loads the embedded resource in the assembly and "MyNS" is the default namespace. assembly.GetManifestResourceStream("MyNS.Test.Rtf"); I do not want to hardcode it. I wish to have something l...more >>