Maintaining State in a web control library.

[JustBarno]

I have a web control library that I've recently finished developing. However, I'm having a problem maintaining state. I have the following code

If not ispostback then
ctrl.Property1 = x
ctrl.Property2 = y
ctrl.Main() 'runs the business logic and sets the [text] property
end if

The code works fine to generate my control the first time the page is loaded, but despite enableviewstate being set to true. It loses state on any postback. Is there some process that I need to follow to enable that functionality in the control code?

Thanks!

-Justin

 

[BoulderBum]

Yes. You need to have your properties explicitly use ViewState (or devise a custom method of saving/loading ViewState).

This is the easy way:


//in your control
public string Property1
{
get
{
Object o = ViewState["Prop1"];
return ( o == null ? String.Empty : (string)o );
}
set
{
ViewState["Prop1"] = value;
}
}