i'm working on a web based application where were using some textbox on footer but the details were inserting from master page so i have to insert the master page value to database that footer will be seen every page like index page purchase order,search,register,login,booking,details on whole application footer will be seen so i have to insert some information from master page footer now when i insert data into textbox value can be null so how can i retreive the textbox value on button click
or you can see the subscribe textbox in aspsnippet if i insert textbox it will be null on click