How to access controls from aspx file in other .cs files

Question

I have a aspx file where controls are written. I want to access these controls in .cs file which is not code of this aspx file but another class file.

For example: I want to update an UpdatePanel from another .cs file.

How can I do this?

Answer 1

Just pass it as a parameter to the method in the other class file. Something like:

public class OtherClassFile
{
    public static void UpdateMethod(UpdatePanel panel)
    {
        //Update the panel here
    }
}

Then the methdod call in your .aspx page would look like this:

OtherClassFile.UpdateMethod(MyUpdatePanel);