how to get "pop up" window grid view data into ".aspx" page text boxes

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C#

I have .aspx page with baer clock id,bear name ,email,phone.To get Clock id i have to click on search button.When the search button is clickes a pop up window opens and there in the pop up window page user enters first name,last name,clock ID and clicks on "ok" button .then a grid view displays with the list and by using the radio button that is present in the grid view a particular row is selected and when clicks on Yes button the pop up must close and all the selected row details must be visble in the .aspx text boxes.