Can anyone recommend a good company that offers Video Training for MCAD tests? I need to train on the run and classes at a fixed locations may not work for me. Also, what companies offer quiz software that prepares ones for the MCAD tests? Thanks ...more >>

Apologies if this announcement is off topic. I have created a web site for .NET developers that I hope may be of use. It' s called TheDotNetDirectory.com and can be found at http://www.TheDotNetDirectory.com. It's a site that contains links to useful ..NET related web sites. If you have any sugg...more >>

I bound a dataset which has some constraints to my datagrid,.. and if user wrong info( like entering duplicate info in a Unique column)the datagrid show him a Message, but i want show user my message instead of datagrid's message.. ...more >>

I have a class hierarchy representing data importers, each of which reads lines from a particular type of comma-separated data file and creates corresponding entries in a database. There is an abstract base class, Importer, which contains the file-reading logic, and a series of inherited cla...more >>

Hi All, When I use a SQL Query to Fill the Dataset if I use the following Where Clause ( [AUG] > '100' ) Then I am getting a 'Data Type Mismatch Error' because the Field Type is double. At the same time if I use the same Where Clause in the Select() command as the Filter Expression...more >>

I've got a bit of a problem acceessing a class that I am using as a 'global' placeholder of numerous static variables I'm using across the application. Basically I need a place to store a reference to my MDIframe so I can access it from anywhere. I have a class called AppObj in a framework ...more >>

hi how can i handle dataset erros in the datagrid which is bound to a datatable?? ...more >>

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Is it still beta at the moment?? I don't know whether to update my VS.NET 2003 or not at the moment. I hear lots of talk about using the latest verison of the SDK and the framework, but if it's still only beta then I dont see the point real...more >>

Hello, How does an application like the Web Application Stress tool work? How does it issue requests so fast without being blocked by slow executing ones? What technique can I use to create an object that would fetch up to 10 URLs in parallel and be able to timeout and terminate all the requ...more >>

Hey guys, I am working on project which has a component to send emails to clients. i am looking some articles, how to use html format and urlcontentlocation. but i didnt get much help. can any one help me thanks in advance. i am using C# ...more >>

I have a large number of methods across different classes accessed via remoting. Every time a method is executed I would like to update a status object - keeping count of the number of method executions. Is this possible using a custom attribute or is there an alternate method? thanks ...more >>

Lets say I have a situation like this: public class a {         public a () {                 //...         }          public a (int i) {                 //...         } } Is there a way to call a() from within a(int i)? Basicly what I'm trying to achieve is to put all the common code...more >>

when i set the BackgroundImage property in the designer the image still doesnt show in the background of the textbox any other property must be set? ...more >>

how do i put an image in the background of a textbox? ...more >>

Hi, Ever been to George Shepherd's Windows Forms FAQ site at Sysfusion http://www.syncfusion.com/FAQ/WinForms/FAQ_c44c.asp Great site with almost all the How-To stuff related to Windows Forms. I was just wondering if there is some Grid and TableStyles which implement/utilizes ALL the tips ...more >>

I have a really simple application for inserting/updating record in a table. The app uses a sqlConnection, sqlDataAdapter and a dataset. I bind the fields to text boxes and a grid to allow for the insert/editing. I also have a button that does a Table.NewRow() and another to do the save. I tri...more >>

Hello! I have a form with 2 buttons. If you click button1, it runs a loop which changes the form's text from 0 to 99. I added Sleep(500) to make it slow. If you click button2 while the above routine runs, the loop should stop there. Here's my code. private void button1_Clic...more >>

Hi all mytcp = new TcpClient(POP_server, POP_port); i have the above line of code, and it fails with the message "The requested name is valid, but no data of the requested type was found" which i have found a similar message (below) in the MSDN library Valid name, no data record of reques...more >>

If I have something like that class TestNegativeValue:Attribute { // ... } .... [TestNegativeValue] public void ExceptionNegativeValue(int i) { //... } how can I test i(throw exception if i<0) directly from the attribute body ? Thanks. Girish...more >>

I use the parameter command, cmd.Parameters.Add("@var_new", OleDbType.Integer).Value= t_var; I receive the error, Compiler Error Message: CS0029: Cannot implicitly convert type 'int' to 'System.Data.OleDb.OleDbDataReader' t_var is declared as an int. So what's the problem?...more >>

I have tried both suggested options shown below to insert simple string values to an Access table, but to no avail. The executeNonQuery failed miserably. I got the correct string values from each array items and were able to check them using messagebox.show. BUT YET i AM UNABLE TO LOG THEM INTO...more >>

I'm using the intrinsic Request object wrong and need some help with this one. I wrote a class file for some XMLTextWriter tasks and in the class file I want to use a conditional to determine if the application is running on the host provider's web server or the web server on my local development...more >>

Hi, I have a simple class named DistributionSelections which stores two enums and a dataset. I want to persist the object to a database for later retrieval. HERE IS THE CODE USED TO PERSIST THE OBJECT IN THE DB: //==================================================== XmlSerializer x = ...more >>

Hi, how do I get the HINSTANCE for an .NET application? ExtractAssociatedIcon always complains about an missing pointer reference... Regards, Martin...more >>

Hi, So my server is complete,I have all the code and libraries which I need but now I want to add exception management and logging capabilities I would like you to suggest a good book about logging and exceptions handling for multiple threads server Some question I have in mind are 1.Wh...more >>

How can I make some rows (of a datagrid) in bold based on the value of a field? for instance if that field is "1" row should be in bold ,otherwise row is in normal mode. thanks for your help. Ali-R ...more >>

Hi... how can i make my application when minimized go to system tray??? []s... ...more >>

Can I retreive an assembly version from command-line? ...more >>

Hi, how can I retrieve the icon for a registered file extension from the registry and show it in my ListView? Any hints appreciated, Martin...more >>

Anyone know a quick way of determining which direction the mouse cursor is moving (ie. up, down, left, right) from a specified origin? Thanks, Paul L ...more >>

I want to dynamicaly create variable and assigned it a particular name, for exemple: foreach (FileInfo FI in ArrayOfFiles) { string FI.Name = "AValueWhoDoesntMatter" } Of course, this sample doesn't works... How can I set the string variable name to always be the value of the prope...more >>

"David" <david_tm3@hotmail.com> wrote in message news:%23p0KV6$vEHA.3116@TK2MSFTNGP10.phx.gbl... > so, the questuion, > How can I create windows (forms) with rounded corners? > > David. > > ...more >>

Dear All, My apologies if this is not the correct forum. I am a bit confused on where this kind of a question belongs. However I need help rather badly. I would like to merge two ASP.NET c# projects into one project. I am unable to information on going about doing it. I remember seein...more >>

Hi all, I am trying to append a certain string to the PATH environment variable programmatically. I am able to read what is in the variable using the System.Environment method GetEnvironmentVariable("path"). However, I don't know yet how to append strings to the path variable. Any help is ...more >>

Hi, Allowing my User to set Excel charts colors in my app with the help of a ColorDialog, I'm facing the following problem : the ColorDialog Colors does not suit with the Excel ones. So, here is my question : Is-it possible to change Excel colors ? Is it possible to set ColorDialog Colors w...more >>

there is a timer on Form1 and I want to change it from Form2,how can I do that?? thanks ...more >>

I have a C# webmethod that returns a dataset, What i want to do is if an error occurs to call the error method and pass that back to the front end client app. i have public dataset names() { dbconnection; try { //excute SP's } catch (Exception e) { ...more >>

Hello, I have written a C# COM server that has a few methods and a property called DataItems that returns an ArrayList. During the course of execution the ArrayList gets populated with several strings. I am having issues retrieving these strings from my C++ client. My C# code looks like thi...more >>

Hi I'm starting to look at C# after programming in C++ and was wondering if anybody could help me with the following questions: (1) What is the difference between a Project and Solution In Visual Studio ..NET? (2) When programming in C++, to allow a file/class to know about other classes...more >>

The regex has a "\p{name}" character class ,In msdn the Description is "Matches any character in the named character class specified by {name}. Supported names are Unicode groups and block ranges. For example, Ll, Nd, Z, IsGreek, IsBoxDrawing.". But there is no more informations about the U...more >>

PS) My example was done from a Paint event (that's why the e.Graphics worked.) As another reply mentioned, that's not the only way to get a Graphics object, but typically you only need one when you're actually displaying something, so Paint events tend to work. The Paint was triggered by cal...more >>

Hi, If I'm not stupid for this, then the design of FolderBrowserDialog is very stupid. It only allow to strat browing from several predefined folder(Environment.SpecialFolder). What can I do if I want to start from any folder I want? ...more >>

The following code is fairly simple to capture command line arguments: using System; namespace ConsoleApplication1 { class Class1 { static void Main(string[] args) { string first = args[0]; string second = args[1]; } } } If the arguments are test1 and test2, it works ...more >>

I have a grid on all my basic data entry forms, and I want Up/Down arrow to navigate the grid no matter where the focus is on the form. I have form.KeyPreview set to true (because I want the form to get the key events first), and trap the arrows in the KeyDown event for the form. This works ...more >>

Hello guys, I'm trying to create a relay server in C#. The client will connect to the relay server and I want this connection to stay open forever if possible. Then when a visitor connects to the relay server, it will relay the request to the client who's response will be relayed back ...more >>

I want when user clicks on LinkedLable ,an IE page to an specific address opens ,how can I do that? thanks ...more >>

Does the async. sockets implementation in .NET use IO Completion Ports (IOCP) internally or would I have to use P/Invoke to use IOCP in a C# async. socket server?...more >>

How can I get the username that a user has logged in with to windows ,in my code? thanks ...more >>

How can I determine if a string will fit in the display area of a text box? I don't want to use a char count because the width of each char can vary. I suspect I need to convert the string to a graphic using the text box's font, but I'm not sure how that would be done. Thanks, Dennis ...more >>

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I am developing an app which utilizes forms authentication. Users log in and are members of roles, the roles being defined in a SQL Server table. Periodically, I need to identify which role a user belongs to. I also need to be able to deliver an error message to users if they attempt to browse t...more >>

Hi, for some reason my formatter doesn't write correct on Compact framework. The following piece of code will demonstrate very weird behaviour with overloading. For some reason the inherited binarywriter doesn't take the right procedure. He will always write 8 bytes for an integer ...more >>

Hi, How do i achieve this? I extracted this from the internet. Tools that compile your .NET code to native x86 code using the "ngen" facility of the .NET runtime (essentially "pre-jitting" your code) and encrypt the metadata raise the bar against decompilation a bit, I want to encrypt th...more >>

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello all. I am in the process of teaching myself C# and I think I am doing OK. I have learnt how to how to call the right constructor of a class, if the class has more than than one cosntructor, by making sure that each constructor has ...more >>

If we were to define all abstract methods in an abstract class, thereby making that class non-abstract, and then override the heretofore 'abstract' methods in a derived class, wouldn't that remove the need to have abstract class types in C#? Derived classes from abstract base classes must over...more >>

I use the parameter command, cmd.Parameters.Add("@var_new", OleDbType.Int32).Value= t_var; I receive the error, CS0117: 'System.Data.OleDb.OleDbType' does not contain a definition for 'Int32' What's the problem? ...more >>

Hi, I have a browse button, where I am selecting an image. How can I load it into a PitctureBox? Thanks in Advance...more >>

I'd like to have textboxes that only allow certain types of data. Like only integers, decimals, etc. Is it better to subclass TextBox for each type or to create only one new TextBox class that has a property or method that makes it act approprietly? Making multiple objects seems like it wou...more >>

How can I retrieve the version of windows programs? I'm talking about MS-Office actually. I want to check the version so as to use different methods depenting on this version. Is there an "ifdef" or something? thanks in advance :) *-----------------------* Posted at: www.G...more >>

Hi, I have a Class in C# that exposes property from System.Uri type. I want to access this property from classic Visual Basic. [ComVisible(true)] [ClassInterface(ClassInterfaceType.AutoDual)] [Guid("C80CFADD-F676-4df6-8499-5C4F2E3434A5")] public class TestClass { public TestClass(...more >>

hello! I have this code: public static DataSet DSet(String sql) { OleDbConnection con = new OleDbConnection(); con.ConnectionString = ConfigurationSettings.AppSettings["conString"]; OleDbCommand cmd = new OleDbCommand(sql,con); ...more >>

Hi My application installs a front-end GUI, which runs code when buttons are clicked. It also installs a command-line utility, that is a console application. They are both installed to the program's application directory, along with the DLL that contains the generic code that they both c...more >>

Hi, I'm developing an application and we are having several different executables for the same application. In .net each executable got his own configuration file (AssemblyName.exe.config). I'm using the configuration management to get/set values from the config file. How can I share sa...more >>

Ok I have six textbox controls on my web-form that allows the user to enter the numbers 1-47 non-duplicates in each box ("meaning if the user enters 3 in one textbox they can't enter 3 in another"). However, I'm trying to figure-out the best way I could allow the user to insert their distinctl...more >>

SGkuDQoNCkhvdyB0byBnZXQgcHJvdGVjdGVkIGZpZWxkcyBvZiBiYXNlIGNsYXNzIHVzaW5nIHJl ZmxlY3Rpb24/DQoNClRoYW5rcy4= ...more >>

Hi, I have the following problem: public class NodeList { public NodeList next; private int data; public NodeList(int x) { this.next = null; this.data = x; } } // end class Now in the main program, I have a instance of NodeList, which has ...more >>

Hello! I'm am currently working on making a central cache component threadsafe, and was looking at the synchronized implementation of the Hashtable. I was wondering why you'd really want to enforce thread safety in a remove method? Why would you care if two threads are trying to remove the s...more >>