Hi There I have been programming C# for a couple of months and am trying to master Threading. I understand that ThreadPool uses background threads (see code example in MSDN page titled 'ThreadPool Class [C#]') .... however I would like to ensure that all my ThreadPool threads have completed...more >>

I've almost completed building a Model-View-Controller but have run into a snag. When an event is fired on a form control I want to automatically updated the "connnected" property in the Model. This works fine if all of the properties are at the top (root level) of the model but I'd like to ...more >>

Ok, I've been reading an intro book to C# and I'm learning a lot of the basics. I can follow along with all the sample code and understand exactly what it's doing, but I know there's no way I'd be able to write the code myself. Also, it seems like every time I come here, or read info online...more >>

Thanks in advance. I have a user control on a aspx page. i pass a querysting to the aspx page and set the property to that value. I see this happen when I step through. This happens first. Then as the user control loads the property isn't set. Why would the value not be there after I just ...more >>

Hey guys, ever since I started programming, i used to parse strings using methods such as find the index of the delimeter, extract the string using substring. Now i was thinking that regex could be of use here and might work even better with its Match class. Which method do you think is...more >>

I've been playing with C# v2.0 today, and having quite a bit of fun. The new version has added iterators. The iterators are coded directly into the class to be iterated. For example: public IEnumerable<int> Visit(SomeVisitor visitor) { int position = 0; for(int i = 0; i < Count; i+...more >>

I'm currently using a context menu to allow the user to add, rename and delete nodes in a treeview control. When a node is added we give it a bogus name ("NewNode") and invoke the add method. We would then to then select the newly added node and rename it but can't figure out how to select t...more >>

I'm just wondering if there is a faster way (better performance or fewer lines of code) to retrieve one single value from a DataRow. Here is what I'm currently doing when I just need a single integer value from the DataRow: int someID = 0; if (DT.Rows.Count == 1) { DataRow DR; DR = DT...more >>

I have a custom control which has it's own OnValidating event handler. I would like to skip the validations if the Cancel/Exit button is pressed. Also, if possible, would like to skip the validations if the X was clicked to close the form. How can I do this? Thanks, Vern...more >>

Greetings - I have a classic ASP site that is accessing custom written .NET web services - we are looking at scalability options and though we have an F5 load balancer that would definitley do the trick, I was wondering how DNS load balancing was handled in such a situation? That is DNS Res...more >>

Is there a specific track for C# certification? If so, what sequence of exams would I need to take to become C# certified. I've looked at the MCAD from Microsoft, but was interested in only a C# certification. The company I'm working for is pushing for all employees to get certified in at leas...more >>

I was trying to write a routine this morning that would open a given assembly, walk the inheritance tree of classes in the assembly, and provide a list of classes in the assembly that inherit from DataSet. Here is a snippet from the routine I came up with: -----------------------------------...more >>

Hi All, Anybody using Virtual PC for development in VS2005. I am just checking to get some views on speed, integrity before I spend time on this. Thanks in advance, Bob Hanson *** Sent via Developersdex http://www.developersdex.com ***...more >>

Please, post a right link. Му current copy dated by May, 2004 and contain bulk of errors/inexactitudes, at least if check it against C# Express beta 2....more >>

g'day folks, I was just browsing through some of the features apple's new tiger operating system. One of the features I found was the invocation of the dictionary feature implemented in Tiger. Essentially, one would place their mouse on top of a word they are interested in and they simply hol...more >>

Hi There I have a huge array of objects being displayed on a UI. These are actually 'jobs' that the users need to deal with before close of business. As the operator deals with a particular job, I want to add the unique identifier for that job to a collection. The collection simply keeps ...more >>

I am having great difficulty understanding this and any code samples I find online are kilometres long and complicated to understand...Please could someone give me a simple exampe of how to get a delegate passed to my worked class so that my main form can update its progress bar? I know it has...more >>

Hello, As a programmer, I'm sure many of you have written libraries to do many of the repeatative tasks, and possibly sharing them with other team members. In my case, I have about a dozen functions in hand that are either "not completely tested" or simply "half done", while anothe...more >>

[c/p between microsoft.public.dotnet.languages.csharp and microsoft.public.visio.software.modeling, I don't really know where it would have to be posted] I've got a weird thing when reverse engineering a c# project which is declaring and then using an event of type CancelEventHandler as in ...more >>

The help file says that "bit fields [i.e. enums that have the Flags attribute] can be combined using a bitwise OR operation, whereas enumerated constants cannot", and yet this code works: enum Blah { a, b, c }; // without [Flags] .... Blah x = Blah.a | Blah.b; So what is the purpose of t...more >>

Hi, How can i select all columns for each row in DataGrid? Best Regards, Erkan ...more >>

Hi All, I've got a situation where I'm implementing an interface (BaseInterface in example below) and I want to use explicity interface implementation of an event so that I can add type safety. To see what I mean look at the example below where the class implementing the interface actually...more >>

Is it possible to know who is the caller of some running method? In ogther words, given a method of some class which is running, is there a way, inside the method, to find out from which namespace the method was invoked? ...more >>

Hi, How can I import a VC++ .lib file in my c# application thanks in advance Manoj Nair ...more >>

How to make so that on serialization of object were not added long Namespace: xmlns:a1 =3D = "<http://schemas.microsoft.com/clr/nsassem/LnLists/LNLists%2C%20Version%3= D1.0.1944.28570%2C%20Culture%3Dneutral%2C%20PublicKeyToken%3Dnull>" And so 100 times for each element=20 Best reg...more >>

I have created a project in "c:\myproject\" directory how can i access this path in c#. I have a XML File in this same directory and i want to load this file using xmldom.load method. ...more >>

Hi, I do not know where is the best place to post this type of question - everytime in this case I always choose this group because I think we have a lots of genius here in this group - seriously! As you can see the Microsoft seems stopping enhance/improve Application Center since App Ce...more >>

Hi I have created multicast delegates, now i want to point to perticular reference from delegate to invoke that mathod how do i do that please any one know it..... Thanks --- Hitendra ...more >>

Hi: I'm a VB.NET programmer who is attempting to write my first C# web application. Everything is going VERY well however I have hit one snag: In the VB.NET world we can easily save classes in session variables. I'm hoping that I can do the same thing in C# however I'm doing something wron...more >>

Hi Everyone, Does anyone know where I can get my hands on a sample with source code of a simple dynamic button control in C# Windows form. I am looking for a sample that uses a class library that sets the properties send/passed from the main windows form. I'm having problems with the class ...more >>

Is it possible to read a text file then add a colum in the text file? example file looks like this: day1 45 day2 90 day 3 day 4 65 I need to add 45, 90, 0 , 65 all together. i never done this before so i'm not sure how to do it. Is it even possible, if so does someone have a sni...more >>

I have an application using WinForms under C#. I do not use the IDE, I use the command line compiler, I build my controls in my application code. The application generally works fine, except for one small problem: I have made a user control that has a Label Box to display the prompt. The probl...more >>

Say I have an event that will fire on web page load complete. However, if the page takes more than 30 seconds, I need to abort and take a different direction to handle this time out. How is this accomplished? How do I time out against the event more or less? Thanks, Brett ...more >>

I have a question on event handling. Here is my situation. I have a main form which has a TreeView control containing nodes whose tags contain class instances of test cases. As I traverse through the list of nodes executing these tests one of the tests needs to fire an event. I need that...more >>

Hi I would like to save a WAV file to my SQL Server DB. What is the best datatype to use on the SQL Server side ? Image ? Binary ? nVarchar ? Also, how do I load it to and from my StoredProcedure ? Thanks...more >>

Hi People, Consider the following: class A : IDisposable { public A ( Stream aResource ) { mResource = aResource ; } public void Dispose() { if ( !mDisposed ) { Dispose(true); GC.SuppressFinalize(this); } } protected virtual void Dispose( bool a...more >>

If I define my own classes for an object "Test" and a collection of those objects "TestCollection", what do I need to add to the class to let me set the collection as a datasource for a listbox and have it automatically update whenever an item is added/edited or removed from the collection? ...more >>

Newbie to .NET from Java, have a question about requirements/conventions for source tree layout. In Java there a convention-bordering-on-requirement that a source file's location in the source tree be determined by the package it belongs to. Java IDEs do this automatically. I haven't found any...more >>

Greetings, I have 2 classes: abstract class Abstract { public Abstract() { } public Abstract(string name): this() { } } class Impl: Abstract { public Impl(): base() { // Some important code } public Impl(string name): base(name) { } } Wh...more >>

I decleared interface with read only property interface IPersonName { string Name { get; } } and in implementation of this interface, i implemented as read/write property classs Student : IPersonName { string _name; public sting Name { get { return _name; } set ( _name = valu...more >>

I am trying to make the page execute timeout after 2 seconds. I first tried using the Server.ScriptTimeout = 2 in the Page_Load() event. The next line does System.Threading.Thread.Sleep(10000); // 10 second pause I was expecting the page to timeout with a Request timeout error. However, it d...more >>

I'm new to C# and figuring out how to program a third-party addon for an application. I don't have a form class per-se but I initialize a class that uses the existing application's user interface libraries to draw a form; it's loaded from XML in this case. My question is: how do I terminate th...more >>

Hi i have 2 Interface IA,IB and base class BC and derived class CD please that is class CD : BC //Inherit but i also want to implement IA and IB when i write class CD : BC,IA,IB it give error please can any one suggest........ Thanks in advance Hitendra ...more >>

Is it possible to do a static link when building an executable? I have a little application that uses 3 or 4 of my custom DLLs. I would like to distribute the executable but to have to distribute it and these 3 or 4 other files is a pain. I would prefer if the executable was bigger and conta...more >>

I have a datagrid on my windows form, it needs to be read only and when a user selects a row, I want the whole row to be selected. How would I go about doing this? -- Thanks Wayne Sepega Jacksonville, Fl Enterprise Library Configuration Console Module Generator http://workspaces.gotdo...more >>

Is there any way to tell the filename of a webform from a user control that is calling it? In other words, if I place a user control into a webform, can I, in the code behind, tell what .aspx page has called the user control? Thx! *** Sent via Developersdex http://www.developersdex.com ***...more >>

I have a web app that displays a list of files in a folder on the server. However, if I add or remove files from folder and reload the webpage, the list of files remains the same. The only way I can get the correct file list is for the user to Refresh on the client side. This won't work. Is ...more >>

Hi Is there a way to invoke an external program in C# with Administrator credentials? You know run an external VBS or batch? Any reference material would be useful. TIA...more >>

Has anyone had experience with using bar codes with C#. I have a client who wants to read a bar code with a patient's number on it and then look up the patient in a database. I know they will need a scanner and decoder but what will I need from a C# programmers perspective to read in the res...more >>

Hi all, I'm getting some problems importing a DLL that I made in C# within VB6.0. The C# is quite easy, just for trying: namespace TestDll { public class Class1 { public int SumNumbers(int numn1, int num2) { int sum = num1 + num2; return sum; ...more >>