Grid View Calculation

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Create a table with following columns -


Create a following Grid View with Bound fields and template fields with the columns and controls in it- 

""

 Now , we have to code for calculate button as when we Select the desired product enter the Quantity  and click on calculate button, the respective amount of the product for no. of items will be shown in the total amount section and 

the complete amount will be shown in the label . 

Now, 

CODE- 

int qty, amt, tot, sum=0;

foreach(GridViewRow gr1 in GridView1.Rows) 

{ 

CheckBox c1 = (CheckBox) gr1.FindControl("ck1");

TextBox tq = (TextBox) gr1.Findcontrol("txtq1");

TextBox ta = (TextBox) gr1.FindControl("txta1"); 

if(c1.Checked)

{

qty = int.Parse(tq.Text); 

amt = int.Parse(gr1.Cells[2].Text);

tot = qty * amt; 

sum = sum + tot;

ta.Text = tot.ToString();


}

}

Label1.Text = sum.Tostring(); 

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