Question

I have a Gridview, with textboxes in templatefields, where i dynamically add columns to it.

 protected void grid()
 {
    DataTable dt = new DataTable();

    dt.Columns.Add(new DataColumn("SerialNumber", typeof(string)));
    dt.Columns.Add(new DataColumn("Material", typeof(string)));
    dt.Columns.Add(new DataColumn("Bags", typeof(string)));
    dt.Columns.Add(new DataColumn("GrossWt", typeof(string)));
    dt.Columns.Add(new DataColumn("TareWt", typeof(string)));
    dt.Columns.Add(new DataColumn("NetWt", typeof(string)));
    dt.Columns.Add(new DataColumn("BillWt", typeof(string)));

    DataRow dr = dt.NewRow();
    dt.Rows.Add(dr);
    dr["SerialNumber"] = 1;

    GridView1.DataSource = dt;
    GridView1.DataBind();                      
}

I need to have the NetWt column to have autocalulated values using the GrossWt and TareWt columns. The formula should be (grosswt-tarewt)/1000. But i dont know how to go about it. Any ideas??

Answer 1

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e){
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        e.Row.Cells[5] = (e.Row.Cells[3].Text - e.Row.Cells[4].Text)/1000
    }
}

Try this