protected void ddBusinessType_SelectedIndexChanged(object sender, EventArgs e) { BLL.DataCenterBiz biz = new BLL.DataCenterBiz(); //Set LicenseTypeCode Session this.MasterLicense.LicenseTypeCode = ddBusinessType.SelectedValue; //Get Company by License Type var message = SysMessage.DefaultSelecting; DTO.ResponseService <DTO.DataItem[]> ls = biz.GetCompanyByLicenseType(message, ddBusinessType.SelectedValue); BindToDDL(ddCompany, ls.DataResponse); }