overriding CreateParams in a control hosted in HTML

microsoft.public.dotnet.framework

6 Apr 2006 9:03 AM

Kristopher Wragg

I've got a control that's used as part of building blocks to create
various "views" by our customers, these views are then dynamically
compiled then will then be hosted in webpages for their staff to use
etc...

the problem I'm having is that I've created a control that has an
invisble background by overriding CreateParams property, but this
requires some permissions...

the systems will have a CAS policy that grants full permission for our
digital certificate, which is all fine and dandy except I can't find
where to assert the permissions for CreateParams because its a property
and not a class or method and means that my test machine won't load the
controls that contain this control or any of the others with invisible
backgrounds...

any ideas?
Welcome other ways to have an invisible background, but so far this is
all I've found that works with a custom control... using dotnet 2.0.

thanks

Kris Wragg

sample code:

protected override CreateParams CreateParams
{
    get
    {
        CreateParams cp = base.CreateParams;
        cp.ExStyle |= 0x00000020; //WS_EX_TRANSPARENT
        return cp;
    }
}