protected void btnSubmit_Click(object sender, EventArgs e)
        {
            Requisition req = new Requisition();

               req.Req_Form_No = empCtrl.generateID(ur.Dept_ID);
               req.Request_Date = DateTime.Now;
               req.Emp_ID = ur.Emp_ID;
               req.Approval_Status = 1;
               req.Approval_By =null;
               req.Approval_Date = null;
               req.Req_Status = null;
               req.Notification = false;
               req.Prior = false;
               empCtrl.submitRequisition(req);
               foreach (GridViewRow row in itemDetailsGrid.Rows)
               {
               Requisition_Detail rd = new Requisition_Detail();
               rd.Req_Form_No = req.Req_Form_No;
               rd.Item_Code = row.Cells[1].Text;
               rd.Description = row.Cells[2].Text;
               rd.Qty = Convert.ToInt32((row.Cells[3]).Text);
               empCtrl.submitRequisitionDetails(rd);
               }

               this.itemDetailsGrid.DataSource = null;
               User u = new User();
               u.Emp_ID = ur.Emp_ID;
               empCtrl.sendEmailToDeptHead(u);
               data = new List<fields>();
               lblStatus.Text = "The Requisition was submitted successfully";
               ScriptManager.RegisterStartupScript(this, this.GetType(), "popup", "alert('Record saved successfully.');window.location='Emp-Welcom.aspx';", true);
        }

 protected void btnApprove_Click(object sender, EventArgs e)
 {
     List<Requisition> RqList = new List<Requisition>();
     List<Requisition> RqrejList = new List<Requisition>();
     string EmpID = ur.Emp_ID;
     string DeptID = ur.Dept_ID;
     foreach (GridViewRow row in gvReqList.Rows)
     {
         CheckBox chk = (CheckBox)row.FindControl("chkSelect");
         if (chk.Checked)
         {
             Requisition req = new Requisition();
             req.Req_Form_No = row.Cells[2].Text;
             req.Approval_Status = 2;
             RqList.Add(req);
         }
         else
         {
             Requisition req = new Requisition();
             req.Req_Form_No = row.Cells[2].Text;
             RqrejList.Add(req);
         }
     }
     string Req_No = approve.generateID(DeptID);
     arControl.approveSelectedRequisitions(RqList, Req_No, EmpID, DeptID, RqrejList);
     if (RqrejList.Count() > 0)
     {
         Session["DepId"] = DeptID;
         Response.Redirect("rejectReq.aspx");
     }
 }

		protected override void OnSizeRequested (ref Requisition requisition)
		{
			base.OnSizeRequested (ref requisition);

			requisition.Width = (int) primary.Width;
			requisition.Height = (int) primary.Height;
		}

        public Message actionCreateRequisition(Requisition objIn)
        {
            objIn.datetime_requested = DateTime.Now;
            objIn.status = 0;

            try
            {
                data.Requisitions.AddObject(objIn);

                Stationery stationery = data.Stationeries.Where(o => o.id == objIn.stationery).SingleOrDefault();
                User employee = data.Users.Where(o=> o.id == objIn.user_obj).SingleOrDefault();
                Department dept = data.Departments.Where(o=> o.id == objIn.department).SingleOrDefault();
                User head = data.Users.Where(o=> o.id == dept.department_head).SingleOrDefault();

                String email_title = "Stationery Requesting from " + employee.firstname + " " + employee.lastname;
                String email_body       = "<p>Hello " + head.firstname + " " + head.lastname + ",</p>" +
                                          "<p>The following item is requested from " + employee.firstname + " " + employee.lastname + ".</p>" +
                                          "<p><b>Stationery Name : " + stationery.stationery_name + "<br />" +
                                          "Quantity : " + objIn.quantity + " " + stationery.unit_of_measure+ "</b></p>" +
                                          "<p>Please click the following link to login to your account and approve.<br /> " +
                                          Configs.APP_URL_ROOT+
                                          "<br />Thank you,<br/> Logic University.<p>This is system generated mail. Please do not reply.</p>";
                Helper.sendMail(head.email, "[email protected]", email_title, email_body);

                return this.getNewDefaultMessageForDBOperations(data.SaveChanges() == 1);
            }
            catch (Exception e)
            {
                return this.getNewDefaultMessageForException(e);
            }
        }

 protected override void OnSizeRequested(ref Requisition requisition)
 {
     if (this.Child != null)
     {
         requisition = this.Child.SizeRequest();
     }
 }

 protected override void OnSizeRequested (ref Requisition requisition)
 {
     if (child != null)
         requisition = child.SizeRequest ();
     else
         base.OnSizeRequested (ref requisition);
 }

			protected override void OnSizeRequested (ref Requisition requisition)
			{
				base.OnSizeRequested (ref requisition);
				const int upperBound = 20;
				if (Allocation.Width > 0 && Math.Abs (Allocation.Width - requisition.Width) < upperBound)
					requisition.Width = Math.Max (Allocation.Width, requisition.Width);
			}

		protected override void OnSizeRequested (ref Requisition req)
		{
			base.OnSizeRequested (ref req);
			if (req.Width <= 0)
				req.Width = minSize;
			if (req.Height <= 0)
				req.Height = minSize;
		}

		protected override void OnSizeRequested (ref Requisition requisition)
		{
			base.OnSizeRequested (ref requisition);

			if (wRequest > 0) {
				requisition.Width = wRequest;
			}
		}

		protected override void OnSizeRequested (ref Requisition requisition)
		{
			base.OnSizeRequested (ref requisition);

			if (SizeFunc != null) {
				requisition.Width = Math.Min (SizeFunc (), textEditor.Allocation.Width - border * 2);
			}

		}

		protected override void OnSizeRequested (ref Requisition req)
		{
			if (Orientation == Orientation.Horizontal) {
				req.Width = GripSize + MarginLeft + MarginRight;
				req.Height = 0;
			} else {
				req.Width = 0;
				req.Height = GripSize + MarginLeft + MarginRight;
			}
		}

		protected override void OnSizeRequested (ref Requisition requisition)
		{
			base.OnSizeRequested (ref requisition);
			if (box.Child != null) {
				requisition = box.Child.SizeRequest ();
				requisition.Height += 2 * box.Child.Style?.YThickness ?? 0;
			}
			else
				requisition = box.SizeRequest ();
		}

		protected override void OnSizeRequested (ref Requisition requisition)
		{
			if (child != null) {
				requisition = child.SizeRequest ();
				requisition.Width += leftMargin + rightMargin + leftPadding + rightPadding;
				requisition.Height += topMargin + bottomMargin + topPadding + bottomPadding;
			} else {
				requisition.Width = 0;
				requisition.Height = 0;
			}
		}

        protected void btnOk_Click(object sender, EventArgs e)
        {
            reasone = txtReasone.Text;

            foreach (GridViewRow row in gvRejectedRequest.Rows)
            {
                Requisition req = new Requisition();
                req.Req_Form_No = row.Cells[0].Text;
                req.Approval_Status = 0;
                req.Rej_Comment = reasone;
                erControl.updateRejectedRequisition(req);
            }
            Response.Redirect("Head-welcome.aspx");
        }

		protected override void OnSizeRequested (ref Requisition req)
		{
			Requisition headerReq, tileReq;

			headerReq = header.SizeRequest ();

			tileReq.Width = tileReq.Height = 0;
			foreach (Widget w in AllTiles) {
				tileReq = w.SizeRequest ();
				req.Width = Math.Max (req.Width, tileReq.Width);
				req.Height = Math.Max (req.Height, tileReq.Height);
			}

			req.Height = (Expanded) ?
			       	headerReq.Height + PageSize * tileReq.Height :
				headerReq.Height + 2;

			req.Width = Math.Max (headerReq.Width + headerReq.Height,
					      tileReq.Width + 2 * headerReq.Height);

			req.Width += (int)(2 * BorderWidth);
			req.Height += (int)(2 * BorderWidth);
		}

		protected override void OnSizeRequested (ref Requisition req)
		{
			Requisition headerReq, tileReq;

			req.Height = req.Width = 0;
			headerReq = header.SizeRequest ();

			tileReq.Width = tileReq.Height = 0;
			foreach (Widget w in AllTiles) {
				tileReq = w.SizeRequest ();
				req.Width = Math.Max (req.Width, tileReq.Width);
				req.Height = Math.Max (req.Height, tileReq.Height);
			}

			// req is now the max width/height of a single tile. Indent
			// req.Width, and use that as our width request, so that the
			// minimum width you can resize the category to is wide enough to
			// fit a whole column. But request a req.Height that is only tall
			// enough to fit PageSize tiles if we get the number of columns
			// we'd wanted. (OnSizeAllocated will force a recalculation with
			// fewer columns if we don't get enough width.)
			req.Width += 2 * headerReq.Height;
			req.Height *= (PageSize + Columns - 1) / Columns;

			if (!Expanded)
				req.Height = 2;  // keep a thin line of background.
			
			// Add height for the header, and update the width if the header
			// is wider than the tile area

			req.Height += headerReq.Height;
			req.Width = Math.Max (req.Width, headerReq.Width);

			// Handle BorderWidth
			req.Width += (int)(2 * BorderWidth);
			req.Height += (int)(2 * BorderWidth);
		}

 protected override void OnSizeRequested(ref Requisition req)
 {
     req.Width = req.Height = 0;
     foreach (WidgetPosition pos in widgets) {
         Requisition wreq = pos.Widget.SizeRequest ();
         if (placement == Placement.Top || placement == Placement.Bottom) {
             if (pos.X + wreq.Width > req.Width)
                 req.Width = pos.X + wreq.Width;
             if (pos.Y + wreq.Height > req.Height)
                 req.Height = pos.Y + wreq.Height;
         } else {
             if (pos.Y + wreq.Width > req.Width)
                 req.Width = pos.Y + wreq.Width;
             if (pos.X + wreq.Height > req.Height)
                 req.Height = pos.X + wreq.Height;
         }
     }
     if (placement == Placement.Top || placement == Placement.Bottom)
         req.Width = 0;
     else
         req.Height = 0;
 }

 protected override void OnSizeRequested(ref Requisition requisition)
 {
     requisition.Width = (int) btnNormal.Size.Width;
     requisition.Height = (int) btnNormal.Size.Height + 2;
     base.OnSizeRequested (ref requisition);
 }

		protected override void OnSizeRequested (ref Requisition req)
		{
			// The Toplevel check is done to ensure that this widget is anchored,
			// otherwise the Realize call will fail.
			if (!child.IsRealized && Toplevel is Gtk.Window)
				child.Realize ();
			
			req = child.SizeRequest ();
			// Make some room for the border
			req.Width += padding * 2 + selectionBorder * 2;
			req.Height += padding * 2 + selectionBorder * 2;
			selectionBox.SizeRequest ();
			if (selectionBox.Allocation.Width > req.Width)
				req.Width = selectionBox.Allocation.Width;
			if (selectionBox.Allocation.Height > req.Height)
				req.Height = selectionBox.Allocation.Height;

			foreach (TopLevelChild tchild in topLevels) {
				Gtk.Requisition treq = tchild.Child.SizeRequest ();
				if (tchild.X + treq.Width > req.Width)
					req.Width = tchild.X + treq.Width;
				if (tchild.Y + treq.Height > req.Height)
					req.Height = tchild.Y + treq.Height;
			}
		}

		void OnSizeReq (object o, SizeRequestedArgs a)
		{
			if (!AllowResize) {
				a.RetVal = false;
				QueueDraw ();
				return;
			}

			currentSizeRequest = a.Requisition;
			
			Rectangle alloc = child.Allocation;
			int nw = alloc.Width;
			int nh = alloc.Height;
			
			if (a.Requisition.Width > nw) nw = a.Requisition.Width;
			if (a.Requisition.Height > nh) nh = a.Requisition.Height;
			
			if (nw != alloc.Width || nh != alloc.Height) {
				int ow = child.WidthRequest;
				int oh = child.HeightRequest;
				child.SetSizeRequest (nw, nh);
				if (ow > nw)
					child.WidthRequest = ow;
				if (oh > nh)
					child.HeightRequest = oh;
				QueueDraw ();
			}
		}