If you want to use post method ,you should modify your code .

but if so ,server side controls can not be used ! They must be place at

module . i love dotnet !

try this temp = " alert ('Login Required'); window.location='Login.aspx'" i love dotnet !

imports system.web.security formsauthentication.signout ! i love dotnet !

Mybe you can try viewstate and cache ! i love dotnet !

You can use javascript . document.form1.nameoftextbox.focus i love dotnet !