Custom ASP.NET control inherited from the GridView control is not rendering style(s) (e.g. AlternatingRowStyle.BackColor)

Question

I'm having a bit of an unusual problem with an extended version of the ASP.NET GridView control that I am working. It is rendering all of the text applied to it just fine, but is not rendering any the style properties that are set. For example, if I set the AlternatingRowStyle to use a gray background, the gray background is not being rendered. However, if I pass the same data set and property to the vanilla GridView control, the background is rendered correctly.

Any ideas what I might be doing wrong?

Answer 1

Wild guess: are your styles defined as themes?

Answer 2

Alright, I'm sure this should have been obvious at first, but after using the class debugging technique of "comment stuff until it starts working" I managed to isolate the issue to being due to having data binding column generation code in RenderContents. Which leads me to believe that I was missing a call in that code, but the code to OnPreRender corrected the issue.