How Can bind GridView by Some selected field Under Button Using asp.ne

Dear All,
I want to Bind a DataTable By Some field Value.
Example:
My field:
Filed Value
1. Date(DateTime): 2014-08-06
2. Employee Name (txtField): Md Syedur Rahman(combo)
3. Customer Code(combo): 10067(combo)
4.Customer Name(txtField): Md Syedur Rahman(Fill By Auto under Customer Code)
5. District(txtField) : Rajbari(Fill By Auto under Customer Code)

Now I want Bind in DataTable by this Value. How Can I do this.

N.B: Using asp.net c# Websites(Web Application).
Thanks
Md Syedur rahman