Hi, There is a LoginView control on my aspx page and the users will use this control to login and i will check the some cookies when the user logged on. But i can not find any events for LoginView control if user successfully logged on or not .. Is it poosibe to determine the successfully...more >>

For an ASP.NET C# application is it possible to set the Connection property of a Linq to SQL dbml class at runtime, such as in the global.asax class. I know I can always specify a connection string when forming a query, i.e DALDataContext dc = new DALDataContext(connectionstring); but when I ...more >>

What's the best way to load a TreeView control from a database? Here is my scenario: I have a TreeView that represents a Table of Contents. The TOC has an arbitrary number of branches, and each branch has an arbitrary depth. I am reading the TOC from a SQL Server database. I describe below...more >>

Hello! Here is an easy question I just wonder if it's possible to say that a Form is a control like TextBox for example. //Tony ...more >>

I want to develop a C# Web Base Logon to connect a Novell LDAP Server with SSL and then authorize the AD Domain User Name and Password I have written the following source code to make a connection to Novell LDAP Server, but i do not know how to authorize AD User Name and Password. And c...more >>

I get the message "Not enough space for the file on this disk" whenever I try to upload a jpg file using the FileUpload member in my web based C# program. I increased the requestMaximum file size set to 8192K in the httpruntime parameter in my web.config file and the file I am trying to uploa...more >>

Hi, Is Windows 2000 compatible with .net Framework 3.5 please ? Jean-Luc ! ...more >>

I am trying to test if my object is a TextBox and I tried: if (messageOut is TextBox) But I get an error message: The type or namespace name 'TextBox' could not be found (are you missing a using directive or an assembly reference?) What would I be missing? Thanks, Tom ...more >>

Thought I'd throw this out and see if anyone's seen anything similar. I have a Windows service written in C#, which occasionally stops silently. The process goes away, Windows notices and shows it as unstarted in the service control manager. This always happens (as far as we've seen) after...more >>

I have a project where I need to generate a file and then send it with a supplied public key. I've done the file generation, now I'm trying to do the encryption. It looks like I can use RSA, specifically RSACryptoServiceProvider. The problem is that the public key is supposed to use Version:...more >>

How do I end a program while in Form_Load? I tried both this.Close(), and Application.Exit(), but neither will just end the program there and then. Instead, both allow Form_Load to continue....more >>

Hi All, In C# web projects , i can get some current user info with "this.Page.User.Identity" in aspx pages and can use them like that; this.Page.User.Identity.IsAuthenticated this.Page.User.Identity.Name etc. But in a separate .cs class file how can i get this current user info ? which ...more >>

Can someone please give me an example on how to call a wcf method that resides on a different domain from JavaScript (not from C#/asp.net)? All the examples that I have seen show how to call from the same domain. I don't care what the binding is. I'll use what works. I need concrete examples o...more >>

Hello, I am passing a int[] to a function that only takes a double[] private double[] GraphData; public Form3(int[] OurData) { GraphData = OurData; foreach (int x in GraphData) { System.Convert.ToDouble(x); ...more >>

I have a callback method where I am going to update GUI with a status. In C#2.0 I can do the following if (this.InvokeRequired) { //Do invoke } else { //display message } In 3.0 I can not find the InvokeRequired. Is there something changed in it? Thanks....more >>

Is there a way to declare and use an array of classes using a constructor that takes parameters i.e. class something { int var1; double var2; something(int var, double variable) { var1 = var; var2 = variable } something() { var1 = 0; var2 = 0.00; } } ...more >>

I've JUST move to Vista, VS 2008, C# from XP, VS.net 2002, VB & C++ so I'm on a steep learning curve. I'm currently developing a C# Web App project in VS 2008. I need to query an existing MS Access data base. I thought LINQ would be the way to go. Can you suggest a good example of C#, LI...more >>

Hi, I need to read a file like this: # Messages français pour GNU gettext. # Copyright © 2006 Yoyodyne, Inc. # Michel Robitaille <robitail@IRO.UMontreal.CA>, 2006. # Christophe Combelles <ccomb@free.fr>, 2006 # msgid "" msgstr "" "Project-Id-Version: GNU hello-pascal 0.15-pre5\n" "Repo...more >>

I am trying to make sure that the local connection is up. I have presently been using the NetworkChange.NetworkAvailabilityChanged Event for this. Is there a better way to do this? Also, I want to test to see if the Internet Connection is up. I need the Internet to be up for the Web Serv...more >>

here's my problem: I have an obfuscated, compiled .exe , that is a windows service, and I need it to install using a setup project. since its already compiled, I can't just go to "custom actions" and add primary output from the service. my setup project doesnt see it. so how the heck do I do i...more >>

Hello i am havin problems with tooltips. I have one very simple Form with just 2 Textbox. One having an Tooltip one not. I can see the tooltip as long as the one textbox that has the tooltip did not have the focus. If clicked once the tooltip will not show up any more. Is this normal? ...more >>

Does anyone have any tips on creating an efficient set algorithm? I have the following set {a, b, c, d, e}. I need to combine them in all possible ways: a ab ac ad ae abc b bc bd be .... ace .... Get the picture? Thanks for any help. Note, the combinations need to be uniqu...more >>

Hello: This is probably more of an algorithms question than a C# question. We have these classes that represent lines on a report. They contain two field: 1) Line Print - A String that indicates the type of line and ordered lexicographically. 2) ModCode - A String that indicates that a s...more >>

Hi, I am trying to extract the host name from a HTTP header: GET /1/1/typical.php HTTP/1.1 Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, */* Referer: http://www.httphost.com/1/1/ Accept-Language: en-us UA-CPU: x86 Accept-Encoding: gzip, deflate ...more >>

This may be a dump question, so please bear with me. I have an xml file like the following <teacher> <name>jkjk</name> <phone>122</phone> </teacher> <student> .... </student> <student> .... </student> etc., In this I have one node with teacher and all the other nodes are studen...more >>

I am a total newb at .net, and I have not been able to search out a best practice answer to what must be a common problem. My app must process binary data from a UDP socket, a MSMQ queue and a file. In C, the data is in nested structs, with mixed types, floats, ints, char arrays, int array...more >>

Is it possible to return two string values from a method which has yeild in it?...more >>

I've built an interface for my class library. When I add this dll to a new .NET project, and create an instance of my class, I do not see the description (like in the intellisense) for my properties and methods. ///////////////////////////////////////////////////// // Here is my class before...more >>

Hi, I'm using ASP.NET 2.0 and have to implement a queue object. That's no problem - its just: Queue myQueue<object> = new Queue<object>(); The thing is though - I want to make this queue available through a wrapper class (so its available to everything) but I dont know how to do this....more >>

I have a problem to understand and use invoke in C#. I have a function in C. I need to use it in my new software (C#). This is the function : int StrToParameters( char **pCmde, char *pFormat, ... ) ; This is how I call it in C or C++: char[] Cmde = "X=150 Y=200"; char[] Format ...more >>

Hi In a multi-threaded application I need to keep track of request-counts for various "users". That is, when a user makes a request to my application I need to increment a counter to track the number of times the user has made a request. But a "user" is more than a single entity, and the sa...more >>

Hai, I am new to Attributes in C#. can anybody, explain how to use already created attributes in its child class. Thanks and Regards, Raj....more >>

I used a picture box to draw lines and rectangle using its graphics object in paint event. Now i need to save those lines i have drawn and print them. I need to know how to save them. I tried image.save. But i didn't work......more >>