protected void ddlIntervention_SelectedIndexChanged(object sender, EventArgs e)
    {
        Common.FillDropDownList(objMasMgr.GetParentWiseOffice(0, Convert.ToDecimal(ddlIntervention.SelectedValue.Trim()), 0), ddlHeadOffice, "OfficeTitle", "OfficeID", true);
        ddlCCO.Items.Clear();
        ddlZone.Items.Clear();
        ddlUnit.Items.Clear();
        ddlDistrict.Items.Clear();
        ddlArea.Items.Clear();
        ddlBranch.Items.Clear();

        TabContainer1.ActiveTabIndex = 0;
    }