I have added a button control to my page. when I start debugging an error message says
"CS1061: 'ASP.default_aspx' does not contain a definition for 'btnLogin_Click' and no extension method 'btnLogin_Click' accepting a first argument of type 'ASP.default_aspx' could be found (are you missing a using directive or an assembly reference?)"
What is the reson for that. please Help me............