Switch from ASPX "Source" to C# codebehind

Question

I am desinging a form in ASP coding, If i give a button code in .aspx page <asp:Button ID="button1" runat="server" Text="Insert" Font-Bold="true"/> it should be called out in aspx.cs page in C# code, can i know the key or how to call out, if we enter button, gridview it should be called out in C# page, i have attached screenshot for your reference.

 

.ASPX

 

 

 

ASPX.cs 

 

Answer 1

Sam,
Thanks for your good help intentions.
I somehow (not sure) managed to restore the files, but I'm not sure what I did.
I simply collected the files I believed should be in the project and made sure they all are in the right folder with the correct namespace, and the most important (i believe) was getting rid of repetitions.
I find the VS (I use Express) to be extremely (dangerously) sensitive to file handling and lacking good automatic file backup (I used to work with Borland Builder where each build saved full backup of previous builds).
I would nevertheless appreciate any good guidelines that will help me prevent such issues in the future.
Sam

Answer 2

Do you still need help?