protected void Page_Load(object sender, EventArgs e)
        {
            requisitionManager = new RequisitionManager();

            currentUser = Utilities.Membership.GetCurrentLoggedInUser();
            requisitions = requisitionManager.GetAllUnApprovedRequisitionByDepartmentID(currentUser.DepartmentID);
            if (requisitions != null)
            {
                GridView1.DataSource = requisitions;
                DataBind();
            }
            if (requisitions.Count == 0)
            {
                ApproveAllButton.Visible = false;
            }
        }
        protected void Page_Load(object sender, EventArgs e)
        {
            requisitionManager = new RequisitionManager();
            UserManager u = new UserManager();

            requisitions = requisitionManager.GetAllUnApprovedRequisitionByDepartmentID(1);
            if (requisitions != null)
            {
                GridView1.DataSource = requisitions;
                DataBind();
            }
            if(requisitions.Count == 0)
            {
                Button1.Visible = false;
                Response.Write("No pending requests for approval.");
            }

               // ApproveSingleRequest();
        }