Automated_Value in text box

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ADO.NET

Dear all,
I need to fetch record in Text Box in Windows Form Application,however I've also used grid view for fetching record form database.
For example:- I have a table with cust name in sql contain fields ID,Name,Address
and in Windows Form I've used one Grid_view to fetch record,and additonal three text boxes which are intended to fetch record on the basis of ID(primary key) which will be given in a text box.

I'm puzzling with logic since I've already used one Data Adapter,Data Set,Data Row,and SQL command builder for Grid View ,however Grid view functioning well.

I'll really very appreciate you if you provide me proper solution.

thanks...........