protected void DropDTrainingAllBr_SelectedIndexChanged(object sender, EventArgs e)
    {
        clearGVandmsg();

        DropDAttTrainingSpecJT.ClearSelection();
        DropDAttTranJT.ClearSelection();
        DropDAttTrainingSpecBr.ClearSelection();
        DropDBranchTrain.ClearSelection();
        DropDAttTrainBrJT.ClearSelection();
        DropDBrTrainJT.ClearSelection();
        DropDAttTranBrJT.ClearSelection();

        DataTable result = null;

        if (DropDTrainingAllBr.SelectedValue != "-1")
        {
            EmployeeManager manage = new EmployeeManager();
            result = manage.getEmployeeTookSpecTrainingAllBranch(DropDTrainingAllBr.SelectedValue);

            if (result != null && result.Rows.Count > 0)
            {
                ResultPanel.Visible = true;
                TrainingReportGridView.DataSource = result;
                TrainingReportGridView.DataBind();
            }
        }
        else
        {
            ResultPanel.Visible = false;
        }
    }