how to delete Gridview Row in asp.net

In my web page I had Gridview. I am bind datas at runtime using databind() method.
Then I have delete and edit buttons on the grid. When i click the buttons the row is deleted or edited. how to do it

I am using following coding for load datas

Bindgrid()
 connect.cnopen();
        SqlDataAdapter da = new SqlDataAdapter("select ITEM,QTY,RATE,Amount FROM TempSales where Billno='" + TXTBILLNO.Text + "'", connect.cn());
        DataSet ds=new DataSet();
        da.Fill(ds);
        GridView1.DataSource=ds;
        GridView1.DataBind();

I give the following coding for delete Row but it is not working

protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
   {
       Label Control = (Label)GridView1.Rows[e.RowIndex].FindControl("ITEM");
        connect.cnopen();
       SqlCommand cmd = new SqlCommand("delete from Tempsales where Item='" + Control.Text + "'", connect.cn());
       Bindgrid();
   
   }

Tags: ASP.NET