To bind value in TextBox field of GridView

I have one form in which G开发者_如何学GoridView contains 1 "rate" field in TextBox. The rate field is not added to database. Now on another form (report generation), in GridView i want to show the value of the rate field which is in first form, How can i do this? Waiting for reply..

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You can store it as a session variable if you don't want to save it anywhere.

Session["rate"] = rate;

and to read it:

rate = Session["rate"];