what your asking is a pretty easily completed task. what you need to do make a new select statement with a user defined variable. see below
Select MovieId, MovieTitle, MovieDesc
From Movies
Where MovieTitle = @myTitle
that @myTitle tells the TableAdapter that the value of @myTitle will be sent in, meaning it can be the text value of the text box. once you have created this new query you can then create a grid view from it, during the creation of the grid view it will ask you to assign any user defined parameters. select control as the type, and then the name of the text box as the value. should work easy enough.
hope that helps.
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