When I have a populated list box in a web form in VB under VS .Net 2003 and then select an item by clicking it and then click a button to perform some function based on the selected item I find that the selectedindex property of the list box control is -1 ... indicating no item is selected .....more >>

We are having difficulty saving session variables in hidden fields. Any suggestions. Thanks!...more >>

What does the [XmlElement("Font")], [XmlIgnore()], [XmlElement("BackColor")] mean in the following piece of code ? What are they used for ? Thanks for any help or any URL that explains this. public class EnoughPIData { private int m_digits; private Color m_backColor; private F...more >>

Is there any way to enable right click on a winform button? ...more >>

In my server app I perform the following: //------------------------------------------- remoteObject remoteObj = new remoteObject(); ChannelServices.RegisterChannel(new TcpChannel(tcpPort)); ObjRef refSubManager = RemotingServices.Marshal(remoteObj, "remoteObject"); In the Client app I atte...more >>

I need to have some .Net code be able to send Email using my ISP's SMTP server. I found some articles on how to use the MAIL FROM: and RCPT TO: commands that you can stream to a tcp connection on port 25 of the mail server. Works nice, but I can only send Emails to addresses on the same domain ...more >>

Hi, I am trying to create a Web Applcation Setup Project. I would like it to be installed in a folder other than "C:\InetPub\wwwroot". How do I get Visual Studio to do this? If there is any other way to go about this, please let me know. Thank you. Arnold ...more >>

I am trying to use the Windows Installer to build a setup package for my application. I found some good code and tools to help me redistribute MSDE 2000 with my application, but I can not figure out how to add a custom database file to sql server from the installer. Can any one tell me how t...more >>

Hello folks, I am trying to make a simple web form which can add a local user, and/or possibly add a user on the remote computer in a same network. (They are not tangled with Active Directory though.) Anybody has a good idea how can I approach this..? I have already tried several methods ...more >>

Hi, Just wondering what sort of problems and advantages people have found using stored procedures. I have an app developed in VB6 & VB.NET and our developers are starting to re-write some of the code in stored procedures (im advocating encryption of them). When deploying an application howe...more >>

Hello all! I have been working on a project for some time now and yesterday, my debugger stopped working. It is a class library which I run from a Win32 test app, so no IIS involved at this point. I can still set breakpoints and when debugging the breakpoints get hit - just like it would w...more >>

On my form i have a message box called txtItemDesc that displays the french phrase qualité Père Noël. Now then when i run this code on that text box: Dim chrArr() As Char chrArr = txtItemDesc.Text.ToCharArray Dim pos As Integer While pos < chrArr.Length ...more >>

Hi, I receive this error in the System Event Log? Event Type: Error Event Source: Service Control Manager Event Category: None Event ID: 7031 Date: 15/08/2005 Time: 22:22:32 User: N/A Computer: [Computer Name] Description: The [Service Name] service terminated unexpectedly. It has...more >>

hi there I am developing a software that needs a database to be shared, I've heard about MSDE, can someone tell me if * There is a newer version than MSDE 2000? * It's possible to use MSDE with C#.Net? * I would like a tutorial or something about deploying MSDE with my applic...more >>

Hi, I some asp.net beta 2 code that works fine on an XP Pro machine, but on a Windows 2003 Server gets the following error: System.Net.Mail.SmtpFailedRecipientException {"Mailbox unavailable. The server response was: 5.7.1 <veachb@quixnet.net>... Relaying denied. IP name possibly forged ...more >>

I have been working on a project that needing a separate thread....and have finally worked out a solution (I think). I had made many attempts to use events and such but to no avail. Then I noticed an MSDN article called "Safe, Simple Multithreading in Windows Forms, Part1 and Part2". This h...more >>

I was wondering if it is possible to redirect the in/output of an existing (running) console application. I have been playing around with the Process class, and the start event arguments. It works then, however, to keep it short, I'm not able to start the process from within my application....more >>

I have converted my program from vb6 In the initializecomponent event the following code give a n exception CType(Me.controlname, System.ComponentModel.ISupportInitialize).EndInit() Exception first-chance of type "System.InvalidCastException" in system.windows.forms.dll Additional informati...more >>

I want to do a "view file" feature and have the browser launch with the html file the user selected - is this easy to do (C#) tia. ...more >>

Can't suss this out for the life of me, googling of no help either. Okay, new to win forms; I have a treeview with several root nodes, each having a single level of child nodes underneath. I also havea context (popup) menu which, what I want, is for it to pop up with certain options (menuIt...more >>

Hi all i have this problem . i have 2 tables ( they are not master detail ) 2 simple tables, and i´m doing a simple update just like this try Trans = Con.BeginTransaction .......... DataAdpater1.Update(Table1) -> '10 rows Inserted in DataBase DataAdapter2.Update(Table2) ...more >>