How to redirect loginpage if QueryString is null for all pag

I have more than 250 pages in my application. I want to write the code once within a file like web.config,global.aspx or whatever. So that if any QueryString is found null or blank then it will redirect to login page.

pls guide me.

Thanks.

If you are using login credential use "Session" it will be very good for you. Further you can convert that session into string and modify code as per your requirement.

Mark as answer if helpful.

Hello aakash,

Do something like this

if(String.IsNullOrEmpty(Page.Request.QueryString["ParamName"])){

response.redirect(/*Put your link here*/)

}

Hope this will help you