Infinite Loop with ReportViewer and Global.System.Diagnostics.DebuggerNonUserCodeAttribute - asp.net

Question

I've written a simple webForm that contains 1 textbox and a ReportViewer (created by Reoprt Wizard). I'm receiving no errors when attempting to execute the report, but the report never stops loading. I've double checked the .rdlc file (by previewing the .xsd file and it displays the expected data. So, I set up a breakpoint in my code behind to see if I could identify the problem. Somehow, the code successfully completes and refreshes the ReportViewer code, and then goes into a Designer.vb file to run 4 functions, and then back to the ReportViewer code again. I don't understand what is happening in the Designer.vb code. Could someone please help me understand what I've done wrong? I'll include the ASP.net, vb code behind, and the 4 blocks of code from the Designer.vb file.
ASP.net Code:
<%# Page Title="" Language="vb" AutoEventWireup="false" MasterPageFile="~/HRMaster.Master" CodeBehind="VacationSick_EmployeeReportByArea.aspx.vb" Inherits="CEI_PerformanceReviews.VacationSick_EmployeeReportByArea" %>
<%# Register assembly="Microsoft.ReportViewer.WebForms, Version=11.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91" namespace="Microsoft.Reporting.WebForms" tagprefix="rsweb" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="HRPlaceHolder" runat="server">
<asp:Label ID="Label2" runat="server" style="z-index: 1; left: 74px; top: 215px; position: absolute" Text="Year:"></asp:Label>
<p>
</p>
<asp:DropDownList ID="ddl_Year" runat="server" DataSourceID="YearChooser" DataTextField="PeriodYYYY" DataValueField="PeriodYYYY" style="z-index: 1; left: 129px; top: 214px; position: absolute">
</asp:DropDownList>
<asp:SqlDataSource ID="YearChooser" runat="server" ConnectionString="<%$ ConnectionStrings:CafeWorksConnectionString %>" SelectCommand="SELECT DISTINCT PeriodYYYY
FROM Ted.CafeWorks.dbo.FatzPeriodDates
WHERE PeriodYYYY >= (DATEPART(YEAR, GetDate())-2)
ORDER BY PeriodYYYY DESC"></asp:SqlDataSource>
<asp:Button ID="btn_Refresh" runat="server" style="z-index: 1; left: 269px; top: 212px; position: absolute" Text="Refresh" />
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:Label ID="Label3" runat="server" Font-Bold="True" Font-Size="XX-Large" ForeColor="#000099" style="z-index: 1; left: 0px; top: 142px; position: absolute; width: 1179px; text-align: center" Text="Employee Vacation/Sick Days by Area Report"></asp:Label>
<rsweb:ReportViewer ID="rv_EmployeeReportByArea" runat="server" Font-Names="Verdana" Font-Size="8pt" style="z-index: 1; left: 29px; top: 280px; position: absolute; height: 400px; width: 710px" WaitMessageFont-Names="Verdana" WaitMessageFont-Size="14pt">
<LocalReport ReportEmbeddedResource="CEI_PerformanceReviews.VacationSick_ReportByArea.rdlc">
<DataSources>
<rsweb:ReportDataSource DataSourceId="ObjectDataSource2" Name="Dilbert_VacationSickByArea" />
</DataSources>
</LocalReport>
</rsweb:ReportViewer>
<asp:ObjectDataSource ID="ObjectDataSource2" runat="server" SelectMethod="GetData" TypeName="CEI_PerformanceReviews.Dilbert_VacationSickByAreaTableAdapters.VacationSick_CalculationsByAreaProcTableAdapter" OldValuesParameterFormatString="original_{0}">
<SelectParameters>
<asp:ControlParameter ControlID="ddl_Year" DefaultValue="2014" Name="Year" PropertyName="SelectedValue" Type="String" />
</SelectParameters>
</asp:ObjectDataSource>
<asp:ObjectDataSource ID="ObjectDataSource1" runat="server" SelectMethod="GetData" TypeName="CEI_PerformanceReviews.Dilbert_VacationSickByAreaTableAdapters.VacationSick_CalculationsByAreaProcTableAdapter" OldValuesParameterFormatString="original_{0}">
<SelectParameters>
<asp:ControlParameter ControlID="ddl_Year" Name="Year" PropertyName="SelectedValue" Type="String" />
</SelectParameters>
</asp:ObjectDataSource>
</asp:Content>
VB Code Behind:
Imports Microsoft.Reporting.WebForms
Public Class VacationSick_EmployeeReportByArea
Inherits System.Web.UI.Page
'Declare Variables
Dim Choose_Year As String
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
'Default the Year in ddl to this year
If (Page.IsPostBack) = False Then
ddl_Year.SelectedValue = Now.Year
End If
'When the page loads, fill the report with the current year's data
Choose_Year = ddl_Year.SelectedValue.ToString()
rv_EmployeeReportByArea.LocalReport.ReportPath = "VacationSick\VacationSick_ReportByArea.rdlc"
Dim Param As New ReportParameter("Year", "2014")
rv_EmployeeReportByArea.LocalReport.SetParameters({Param})
rv_EmployeeReportByArea.ServerReport.Refresh()
End Sub
These 4 Code Blocks from the file Dilbert_VacationSickByArea.Designer.vb are executed and then it goes back to the PageLoad code for the ReportViewer:
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(), _
Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")> _
Public Property ClearBeforeFill() As Boolean
Get
Return Me._clearBeforeFill
End Get
Set
Me._clearBeforeFill = value
End Set
End Property
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(), _
Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")> _
Protected Friend ReadOnly Property Adapter() As Global.System.Data.SqlClient.SqlDataAdapter
Get
If (Me._adapter Is Nothing) Then
Me.InitAdapter
End If
Return Me._adapter
End Get
End Property
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(), _
Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")> _
Protected ReadOnly Property CommandCollection() As Global.System.Data.SqlClient.SqlCommand()
Get
If (Me._commandCollection Is Nothing) Then
Me.InitCommandCollection
End If
Return Me._commandCollection
End Get
End Property
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(), _
Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")> _
Protected Friend ReadOnly Property Adapter() As Global.System.Data.SqlClient.SqlDataAdapter
Get
If (Me._adapter Is Nothing) Then
Me.InitAdapter
End If
Return Me._adapter
End Get
End Property
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(), _
Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")> _
Protected Friend ReadOnly Property Adapter() As Global.System.Data.SqlClient.SqlDataAdapter
Get
If (Me._adapter Is Nothing) Then
Me.InitAdapter
End If
Return Me._adapter
End Get
End Property

Answer 1

Try printing your report only If Not Me.Page.IsPostBack.
You can also remove rv_EmployeeReportByArea.ServerReport.Refresh() because you're using a LocalReport.