If you don't want to rely on a DB server, you can us a smaler DBMS like SQLite I use that from time to time with minor apps.

Try and run the same sql statement in your DBMS as it will tell you what if anything is wrong with your statement. My guess is that you may have some dependencies in your tables, that prevent you from deleting.

What your experiencing is called Invalid cross-thread operations. You can read more about it here

Then my suggestion to you is: Go back to your original post and continue the discussion there. If people know the answer to your question, I'm sure you will get the help needed. Posting the same question 4 times crossing various forums is not going to help you one bit.

You can indeed use a thread to handle this. Here's a nice beginners guide about threading here on Codeproject: Beginners Guide To Threading In .NET Part 1 of n

CrossPost! X| And allready answered here: Here

A few seconds of search would have given you: [This]

Not sure why it didn't add it automaticly. It should do so. The tagprefix it is reffering to, must be something similar to this line

<%@ Register src="WebUserControl1.ascx" tagname="WebUserControl1" tagprefix="uc1" %>

which is added at the top outside the tags You can always add this line yourself. Just name the src, tagname and tagprefix accordingly. Hope this helps.

As the others have posted, you do not use the toolbox to add your usercontrol. Instead you drag and drop it, but you may need to be in Design view as you otherwise will just get a reference to the file.

Another link: c# faq

His comment is far from useless. He is in a nice way pointing out, that you need to write so people can read what your actually trying to tell them without having to guess. This will in return help us help you!

Are you not able to create a sub-domain for your main domain without having to pay extra?

There are lots of ways. You could use a

While(true)
{
Your server code goes here;
}

When the server closes the connection and finishes it will start over and be ready to accept a new connection

Have a look at this tutorial: How Do I: AJAX RoundedCorners Extender

My pleasure. Glad i could help

would it be ok to do it with you sql statement. In that case you could do: Select name, adress, age / 2 as age from [yourdbname]

If people leaving the page without loging out will cause problems and you can tell them that they need to log out first, what will happen if they hit ALT+F4 to close or even if they just type in a new adress and leave your site that way? :) Javascript has an onUnload event, which is triggered when the browser is told to leave the page. You could use this event to trigger an auto-logoff for your site but I doubt it will handle cases where the browser is deliberately forced to close.

http://msdn.microsoft.com/en-us/library/4b612y2s.aspx[^] An event is an association between a delegate and a member function (event handler) that responds to the triggering of the event and allows clients from any class to register methods that comply with the signature and return type of the underlying delegate. The delegate can have one or more associated methods that will be called when your code indicates that the event has occurred. An event in one program can be made available to other programs that target the .NET Framework common language runtime So in short, the delegate is a multicast delegate, and can have more than one method attached and this is basicly the reason that it must be void. Hope it makes sence :)

SmartNaviagtion is obsolete http://msdn.microsoft.com/en-us/library/system.web.ui.page.smartnavigation.aspx[^] You should use Page.MaintainScrollPositionOnPostBack hope this helps.

You so just smashed my whole belief system... :((