Grid view deleting event

protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
    {

        string Query = "delete from shiftshedule where emp_name='"+ ((TextBox)GridView1.Rows[GridView1.EditIndex].Cells[2].Controls[0]).Text +"' and date1='"+((TextBox)GridView1.Rows[GridView1.EditIndex].Cells[1].Controls[0]).Text +"'";

        SqlConnection ObjConnection = new SqlConnection("Data Source=(local);Initial Catalog=Northwind;User ID=sa;password=sa;");
        ObjConnection.Open();
        SqlCommand ObjCommand = new SqlCommand(Query, ObjConnection);
        ObjCommand.ExecuteNonQuery();

        //ObjReader.Dispose();
        ObjCommand.Dispose();
        SqlDataAdapter ObjAdapter = new SqlDataAdapter("select date1,emp_name,availibility from ShiftShedule where emp_name='" + DropName.SelectedItem.Text + "' and date1 between '" + txtFrom.Text + "' and '" + txtTo.Text + "' ", ObjConnection);
        DataSet ObjDataSet = new DataSet();
        ObjAdapter.Fill(ObjDataSet, "rahul");
        GridView1.DataSource = ObjDataSet.Tables["rahul"];

    
        GridView1.DataBind();

    }

Check your code...find right Cell[] value.

 

or send Code part................