title: The Report Viewer Web Control HTTP Handler has not been registered in the application's web.config file
body: <pre><code>    The Report Viewer Web Control HTTP Handler has not been registered in the application's 
  web.config file.  Add &lt;add verb="*" path="Reserved.ReportViewerWebControl.axd" type = 
  "Microsoft.Reporting.WebForms.HttpHandler, Microsoft.ReportViewer.WebForms, Version=9.0.0.0, 
  Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" /&gt; to the system.web/httpHandlers section of the web.config file
  </code></pre>
  
  <p>This error is coming . I have already mentioned this line in http handler but still getting this error </p>
  
  <pre><code>&lt;add path="Reserved.ReportViewerWebControl.axd" verb="*"   type="Microsoft.Reporting.WebForms.HttpHandler, Microsoft.ReportViewer.WebForms, Version=8.0.0.0,    Culture=neutral, PublicKeyToken=0000000000000000" validate="false" /&gt;
  </code></pre>
  
  <p>my html page markup is as follow </p>
  
  <pre><code>&lt;%@ Register Assembly="Microsoft.ReportViewer.WebForms, Version=9.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"
      Namespace="Microsoft.Reporting.WebForms" TagPrefix="rsweb" %&gt;
  
  &lt;asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server"&gt;
  &lt;asp:Button ID="btnsubmit" runat="server" OnClick="GenerateReportButton_Click" /&gt;
      &lt;rsweb:ReportViewer ID="ReportViewer1" runat="server"&gt;
      &lt;/rsweb:ReportViewer&gt;
  &lt;/asp:Content&gt;
  </code></pre>
  
  <p>Web config assemblies section is as follows :</p>
  
  <pre><code>&lt;assemblies&gt;
      &lt;add assembly="System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/&gt;
      &lt;add assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/&gt;
      &lt;add assembly="System.Data.DataSetExtensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/&gt;
      &lt;add assembly="System.Xml.Linq, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/&gt;
      &lt;add assembly="System.Web.DataVisualization, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/&gt;
      &lt;add assembly="System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/&gt;
      &lt;add assembly="Microsoft.ReportViewer.WebForms, Version=9.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/&gt;
      &lt;add assembly="Microsoft.ReportViewer.Common, Version=9.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/&gt;
  &lt;/assemblies&gt;
  </code></pre>