protected void ddlPosition_SelectedIndexChanged(object sender, EventArgs e) { try { SearchResumeREBAL searchResumeBAL = new SearchResumeREBAL(); string position = Convert.ToString(ddlPosition.SelectedValue); Int32 requirementId = searchResumeBAL.GetRequirementIdBAL(position); if (requirementId != null) { lblRequirementId.Text = Convert.ToString(requirementId); } } catch (Exception) { throw; } }