How to create web user controls?

[abc my vclass]

I created a web user control which only has a combo box control. When I
drop that web user control to my web page. The code of web page should
expect add a line as:

protected mynamespace.myCombobox myCombobox1;

But I don't know why my IDE has not add this line in code?
What is the correct way to create a web user control?

 

[Mr Newbie]

It just doesent.

Accept it and put the line in yourself. I know its annoying, but there you
are. This is in contrast to dragging a custom control Which Is compiled in a
dll from the toolbox whereas in such cases the line is automatically
inserted for you.