Hi All I am new to 3D modelling in VISUAL .NET C#.I am planning to draw the entire roof (showing the roof material, roof angle, roof shape,ceiling shape, ceiling material) of the house and planning to use OpenGL. Please let me know whether I can use opengl with C# and also how to add referanc...more >>

Why aren't overloads of relational operators like <, ==, and >= not restricted to returning a bool type? When would you EVER want == to return, say, a double? The best I can imagine, here, is that I might want to compare two numbers for equality and get an Eta object that's basically the diff...more >>

This is probably a silly question but I'll ask to be sure. Say I have a constructor that looks like this: public MyClass() { items = new string[10]; for (int i = 0; i < items.Length; ++i) { items[i] = new String(); } } Is the following then necessary? ~MyClass() { for (int ...more >>

I have a problem with a header file which was written in C++ which I need to implement in C#. The header file in C++ IS something like this, ........ #ifdef __cplusplus extern "C" { void WINAPI _libmain ( long JobNo ); void * WINAPI _getjobfield ( void *vJobRec, short field, short subf...more >>

Does anyone have any idea how to do FTP in .NET? Thanks. Best Regards, Gary Hendricks http://www.digital-music-guide.com ...more >>

I want to compare two strings, in a numeric fashion. e.g.: string a = "10"; string b = "2"; int comparison = String.Compare(a, b); // comparison is now <0, but I want it to be >0 in this case // since 10 is more than 2, numerically Is this possible, without having to write my own comp...more >>

Why would you ever want to define both "public static bool operator true" and "public static bool operator false" when you can just define "public static implicit operator bool"? Is there syntax where the two are not equivalent? Or are there cases where you might legitimately want both false a...more >>

How come I can write code like "if (L)" but NOT code like "if (L == true)" when L is a class with an implicit operator bool? /////////// List L = new List(); public class List { private long count = 0; public static implicit operator bool (List L) { return L.count > 0; ...more >>

How can I know what row number I clicked on in a listview? I need a method that returns an int corresponding to the row number I clicked on in my listview. Thanks. ...more >>

I can't find any "short" code to make this work without taking 100s of lines (because I have to keep repeating this process several times). But this is what I have so far: int i = 7; do { aryBadCoor.SetValue(i + " 25", v); v++; i++; } while (!(i ==39)) The VB.NET one ...more >>

I'm new with ADSI with .Net. I'm developing a windows application to get the NT group name based on the user id. The application installed successfully on the target computer (OS NT with the latest patch and DSclient). Here is the code: int idx = System.Security.Principal.WindowsIdentity.Ge...more >>

Hi there, What method do you use to connect to mssql2k? Do you use Trusted-Connection (windows-based) or SQL security with a specific username/password? Thanks! ...more >>

Hi All! I have a little problem with calling a TreeView-function recursive to fill it with folder-paths. I.e c:\Windows\System32\ should be displayed c Windows System32 Anybody that can help me out with some good code, or a link? TIA Per Rollvang ...more >>

Hello When I look at windows services with the Windows Administration tools Services utility (Win XP) I note that many services have a description field (2nd column). How can I add such a description for my service? ...more >>

Hi Everyone, I did as previously suggested and checked to make sure I have: 1. IIS web server (on server) 2. IE 6.0 or higher at client machine 3. Client has the .net frame work installed 4. Client machine has add ur web server as a trusted site I wasn't sure how to perform 4. How do I g...more >>

I have a few user controls and I don't want to add them to the main form. I simply want to be able to spawn them like pop-up windows I added them to my project and call show(), but nothing happens. Any help would be appreciated....more >>

I want to be able to write a little reflection program that can handdle any kind of Event. So it must be able to add an event handler to an event it has never seen before, this is a little tough to do since different events have different signatures! Any idea how to do this? what I do witht he pa...more >>

Hi all! How can I made an application that is not standard window-based application, but instead of this it has a kind of "free form" shape? For example, I have a transparent GIF image with circle inside and transparent color outside the circle. And I would like that my application looks lik...more >>

Hi, I am trying to allocate a byte array i na console app. The process jumps over the 1 GB RAM and then throws System.OutOfMemoryException. It happens with diffrent sizes of allocation, on different computers, using Framework 1.1. Any ideas ? Code: static void Main(string[] args)...more >>

When a type's member is marked as unsafe unsafe Int32* Ptr(){ Is it possible, using reflection, to determine that the member is unsafe The best I could come up with for the above example is methodInfo.ReturnType.IsPointe Thanks don...more >>

Hi All! i have an handler to save some informations on the database. works very fine. well. i change the sql INSERT string to include a new item. Now im getting an INTERNAL SERVER ERROR - 500. and even i change to old code i still have the error. This is the client code. HttpWebRequest...more >>

I'am trying to hook other programs menu. I didn't know how to do that in c# so i used some API functions like GetForgroundWindow(), GetMenu(), GetMenuString() .. These functions allso worked partially' I couldn't hook all application menu it worked on "caculator" but not on "word" for example (a p...more >>

hello, i would like to seek your expertise on how to determine the identity of the user (remote/local) that modified/created/deleted a file? i'm currenty developing a simple windows form app using C# that monitors any changes in my filesystem using the FileSystemWatcher class of System.IO nam...more >>

Hi I wish to implement my own serialization scheme, so I implemented ISerializable, and added the needed functions GetObjectData(..), and the special constructor The thing is: I need to make a runtime decision inside these functions, and on a given case - let dotnet's regular mechanism do the wor...more >>

I was I to load an Image or XmlDocument based on the data in the Stream, if changes are made to the created object, will the stream be affected? In other words, if new nodes are added to an XmlDocument after being loaded, will the stream reflect those changes? ...more >>

use HttpWebrequest. get cookie in URL1 and use this cookie in URL2 how to coding? ...more >>

What are your views on XML documentation comments? I always comment every class using <summary> tags, and comment *some* methods. A lot of C# code that I've seen written by others uses appropriate XML documentation comments for *every* method. What do you think about this? Should _every_...more >>

class Base { public Base (string str) { Console.WriteLine(str); } } class Derived : Base { public Derived (int i) { // do some thing here based on "i" to generate a string ...more >>

Hi All I'm trying to query and get a list of all reachable computers in a network. I also heard that you can query active directory and find domain pc list. but my need is not to query active directory. In windows xp "My Network Places -> Microsoft Windows Network" provides all machines that are pr...more >>

GraphicsPath p=new GraphicsPath(); //p.AddLine(p1,p2); //p.Widen(pen); p.Dispose(); this code runs ok. but if I uncomment the two lines above. the program finally crashes out of memory? can somebody tell me why? thank you. ...more >>

I currently am learning c#.net on my own, still consider myself a rough beginner. I have 6 years development experience with most of the time spent on Lotus Notes/Domino/VB. Would like to get involved in a project to learn. No job is too small. My time is flexible even though I work duing the ...more >>

CType(e.Item.Cells(3).Controls(0), TextBox).Text I want to use this in c# how can i DO that?? thx ...more >>

I have a C# program that checks directory on a UNIX server and once in a while I get the following error 'The network BIOS session limit was exceeded.' if I log off and log back on the error goes away. Does any one know what is causing this error or how to prevent it? Peter -- Thanks -...more >>

Hi! How to set a form full screen, the title bar, close button, and system task bar should hide while the form run. Like some game software such as Empero Era, Brood, Quake and so on. Thanks! ...more >>

I just created a Excel 2002 interop. When I view thru the object browser I see Excel {}, does this mean this is the Excel Namespace, just a doubt. So does {} mean namespace....more >>

I understand that structures are value types and arrays and classes are reference types. But what about arrays as members of structures i.e. as in C struct x { int n; int a[100]; } How is such a structure (e.g. declared in C++ as a field in a class) accessed in C#...more >>

This is my first attempt, please bear. I referenced Excel 10.0 Object from VS .NET IDE, I think this creates Interop Object for Excel. I have the following code. ------code start---- using System; using System.Runtime.InteropServices; using Excel; namespace ConsoleApplication3 { ...more >>

Hi I've been searching for a solution to my problem all day now but haven't found anything which makes me think the solution is something obvious. Any help is appreciated. Suppose you have three classes in separate files and two namespaces. using Pain.Common; namespace Test { publi...more >>

I am trying to compare arraylists in csharp. I setup a simple test with empty arraylists. string [] x1 = {}; string [] x2 = {}; Console.WriteLine( x1 == x2 ); // false Console.WriteLine( x1.Equals(x2) ); // false Console.WriteLine( x1.GetLength(0) == 0 ); // true ...more >>

Is there a way to avoid the following mess? int i = 0; if (someString != null) { try { i = Int32.Parse(someString); } catch (FormatException) { } } More specifically, is there a way of avoiding the ugly empty catch statement?...more >>

Hi, How can I change desktop wallpaper? I tried editing "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System" key but it doesn't work. I tried this API call: [DllImport("user32.dll", CharSet=CharSet.Auto)] public static extern int SystemParametersInfo (int uActi...more >>

Hi, In C#, we can use p/Invoke by using [DllImport()] to define extern function to call C/C++ DLL. Is there any tool/wizard that we can use to explore the DLL (without header file) and generate the [DllImport()] extern function automatically? Sometimes when I could not delete a file because...more >>

Hi - I have a C# .NET assembly that exposes a COM interface (basically has an interface and class with Guid attributes). If I compile this under VS.NET (with the "Register for COM Interop" selected). Then I can import the TLB into C++ and use the component as a standard COM component, it cr...more >>

how to debug a running service?=20 I can use "debug processes" to attach a running service,=20 but the program doesn't break at my break points....more >>

What's the best way to achieve the following? public class MyClass { public const byte[] TwoConstBytes = new byte[] { 0x01, 0x02 }; }...more >>

I need to display a string on the page. It may have Tab, new line feed etc. I need to preserve it. If I am setting it to Lable.Text, it is not been preserved. How can I do it? Thank Yo ...more >>

Hi, I've inherited the XmlDocument class to include some custom methods that I want to use on a particular XML file. I need to know whether the document has changed since being loaded, and I wanted to be clever and hook up to the events that are already defined in the XmlDocument class (i.e...more >>

Hi ALl I've got a strange issue (on development, not production) With .NET 1.1, I've got a multithreaded app that sends and received to MSMQ, also has uses a Remoting server so as to run mirrored with other apps of the same kind The app is usually started by a service ( i.e. using Process.Star...more >>

hi, I'm trying to have a toolbar similiar to MSOffice2003 but the toolbar which comes with VSNet03 is not quite the same or at least I don't know where I can assign/change the color properties. Any idea ? Thanks in advance. PS: fyi: I have installed in my system MSVisio03 and msoffice03...more >>

Hi All, I have one component developed in C#. It has got three properties and only one of them will be having value at design time. This means that values of other two properties will be null. Whenever I drag & drop this component into a form, VS.NET is giving a warning as : " The object...more >>