how to get the code file of another aspx page attached to my aspx page

Question

My problem is to make a code behind file of an aspx ie already existing 1.aspx pages aspx.cs to be available to another page aspx with out replicating any of the code in code behind.

ie 1.aspx --> code file is 1.aspx.cs.

now 2.aspx --> code file is 1.aspx.cs

under the condition that the controls used in both aspx pages have identical Ids

Answer 1

Honestly, if you have such requirement, you should better encapsulate common behavior either in a base class that can be inherited by the two page's dedicated class, or create utility/business class that contains the code.

You should also consider using User Controls. This can help you to create reusable visual component in your application.