asp.net building controls: Hello

I would like to know what methods/events I have to
override to extend any webserver control. I actually need
to extend the datagrid control, but the basics should be
same for all, right? What are the basic required events,
which I have to insert for each control? I have never
created my own web server control. But I do need one. Any
help is very appreciated.

Here's the lowdown on how to inherit and extend web controls:
http://SteveOrr.net/Articles/InheritAndExtend.aspx

You might also want to take a look at the SuperDataGrid control, which
extends the datagrid:
http://superexpert.com/default.aspx?id=427
The SuperDataGrid control is explained in detail in Stephen Walther's book
ASP.NET Unleashed:
http://www.amazon.com/exec/obidos/redirect?tag=steveorrnet-20&path=ASIN%2F067232542X%2Fqid%3D1105408282%2Fsr%3D2-1%2Fref%3Dpd_ka_b_2_1

--
I hope this helps,
Steve C. Orr, MCSD, MVP
http://SteveOrr.net



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Thanks for those links, but the SuperDataGrid seems to
come only as a dll and I guess that the source code is
only available in the book. Let me explain what I tried so
far. I extended the datagrid web server control, with some
functions and methods. Overall it works, but the problem
is now that when I call the MyCustomDatagrid.columns.count
() from my webform then it is always 0. Although I can see
the columns very clearly in IE. Can you help me out and
tell me please what I am missing here? I would really
appreciate any help, since I am stuck with this.

Thanks


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