Actually we have to write a global function so that we access all that function from all the webforms of the same project. If want to call the function from other webforms. And how to write the function in the .cs file. Please send the reply as soon as possible.

Please don't cross post. See this thread.

you can do this by writing public static functions. static functions you dont need to instantiate the class. You can call these methods directly using the class.

eg:

using System;

namespace MyNamespace
{
    public class GlobalMethods
    {
        public GlobalMethods()
        {
        }

        public static int Sum (int a, int b)
        {
            return a + b;
        }
    }
}


You can invoke the Sum method of the class in your webforms without declaring the instance of the class

private void Button1_Click(object sender, System.EventArgs e)
{
        TextBox1.Text = Sum(5, 20).ToString();
}

Regards
Ganesh

Sorry a mistake in the reply....

the web form should have the following
private void Button1_Click(object sender, System.EventArgs e)
{
        TextBox1.Text = MyNamespace.GlobalMethods.Sum(5, 20).ToString();
}

Regards
Ganesh