hi,

I have a question (might be wired). 

I am building a web application. I want to know how I can apply a css class to all controls of gridview type in my application same as we do for we do for any html control.

Is it possible? If yes then how?

You might want to investigate using Theme and Skin for that purpose. 

First, create a css class for your Gridview control.

Create a Skin for your gridview control and set the cssclass attribute to the css class you have created.

http://msdn2.microsoft.com/en-us/library/ykzx33wh(VS.80).aspx