ReportViewer - Hide PDF Export

Question

I make use of a ReportView component in a VB.Net 2005 app. How can I disable the PDF export functionality, only keeping the MS Excel format?

Answer 1

I had the same problem. I could get the unwanted export options to hide when the report rendered, but it didn't work in the case of a drillthrough report. The following code worked for both the parent and drillthrough reports, using a LocalReport:

    private void SuppressExportButton(ReportViewer rv, string optionToSuppress)
    {
        var reList = rv.LocalReport.ListRenderingExtensions();
        foreach (var re in reList)
        {
            if (re.Name.Trim().ToUpper() == optionToSuppress.Trim().ToUpper()) // Hide the option
            {
                re.GetType().GetField("m_isVisible", BindingFlags.NonPublic | BindingFlags.Instance).SetValue(re, false);
            }
        }
    }

The trick is to call the method from the page PreRender method:

    protected void Page_PreRender(object sender, System.EventArgs e)
    {
        SuppressExportButton(rvMain, "PDF");
        SuppressExportButton(rvMain, "Word");
    }

Answer 2

Using the jon's code above as a reference, I manage to hide "Excel" in the program at runtime. However, I am not good a VB.net so I put a sample in C#. Sorry about that but I hope this helps. One more thing, the report the embedded inside an ASP.net page.

  // This is the Load event of the reports itself.
  // Call the recursive method.
  protected void ReportViewerResults_Load(object sender, EventArgs e)
  {
    CustomizeRV((System.Web.UI.Control)sender);
  }

  // Patterned from Jon.
  // Traverse all controls/child controls to get the dropdownlist.
  // The first dropdown list is the ZoomGroup, followed by the ExportGroup.
  // We just wanted the ExportGroup.
  // When a dropdownlist is found, create a event handler to be used upon rendering.
  private void CustomizeRV(System.Web.UI.Control reportControl)
  {
    foreach (System.Web.UI.Control childControl in reportControl.Controls)
    {
      if (childControl.GetType() == typeof(System.Web.UI.WebControls.DropDownList))
      {
        System.Web.UI.WebControls.DropDownList ddList = (System.Web.UI.WebControls.DropDownList)childControl;
        ddList.PreRender += new EventHandler(ddList_PreRender);
      }
      if (childControl.Controls.Count > 0)
      {
        CustomizeRV(childControl);
      }
    }
  }

  // This is the event handler added from CustomizeRV
  // We just check the object type to get what we needed.
  // Once the dropdownlist is found, we check if it is for the ExportGroup.
  // Meaning, the "Excel" text should exists.
  // Then, just traverse the list and disable the "Excel".
  // When the report is shown, "Excel" will no longer be on the list.
  // You can also do this to "PDF" or if you want to change the text.
  void ddList_PreRender(object sender, EventArgs e)
  {
    if (sender.GetType() == typeof(System.Web.UI.WebControls.DropDownList))
    {
      System.Web.UI.WebControls.DropDownList ddList = (System.Web.UI.WebControls.DropDownList)sender;
      System.Web.UI.WebControls.ListItemCollection listItems = ddList.Items;

      if ((listItems != null) && (listItems.Count > 0) && (listItems.FindByText("Excel") != null))
      {
        foreach (System.Web.UI.WebControls.ListItem list in listItems)
        {
          if (list.Text.Equals("Excel")) 
          {
            list.Enabled = false;
          }
        }
      }
    }
  }

I was trying to select the default item to "PDF" but could not find a way to enable the "Export" text button. :-(

Answer 3

After 4 hours of search I found the solution. I made some little changes to marol's code to be more little:

        Control ReportViewerControl = ReportViewer1.FindControl("Ctl01");
        Control ExportGroupControl = ReportViewerControl.FindControl("Ctl05");
        DropDownList DropDownControl = (DropDownList)ExportGroupControl.FindControl("Ctl00");
        DropDownControl.PreRender += new EventHandler(ddList_PreRender);

Answer 4

This is how you disable a export option, just mark all the ones except Excel to false.
*Don't forget to restart the Reporting Services service.

File: InstallPath\Reporting Services\ReportServer\rsreportserver.config

Enabled:

<Extension Name="EXCEL"
Type="Microsoft.ReportingServices.Rendering.ExcelRenderer.ExcelRenderer,Microsoft.ReportingServices.ExcelRendering"/>

Disabled:

<Extension Name="EXCEL"
Type="Microsoft.ReportingServices.Rendering.ExcelRenderer.ExcelRenderer,Microsoft.ReportingServices.ExcelRendering"
Visible="false"/>

Answer 5

If it helps... the code to hide the excel item em VB.Net (.Net 3.5)

Private Sub CustomizeRV(ByVal ctrl As ReportViewer)

    For Each c As Control In ctrl.Controls

        If c.GetType.ToString = "Microsoft.Reporting.WebForms.ToolbarControl" Then

            For Each ct In c.Controls

                If ct.GetType.ToString = "Microsoft.Reporting.WebForms.ExportGroup" Then

                    Dim cbo As DropDownList = CType(ct.controls(0), DropDownList)

                    AddHandler cbo.PreRender, AddressOf cboExportReportViewer_PreRender

                End If

            Next

        End If

    Next

End Sub

Protected Sub cboExportReportViewer_PreRender(ByVal sender As Object, ByVal e As System.EventArgs)

    Dim cbo = CType(sender, DropDownList)

    For i As Integer = 0 To cbo.Items.Count - 1

        If cbo.Items(i).Text.ToLower = "excel" Then
            cbo.Items.Remove(cbo.Items(i))
            Exit Sub
        End If

    Next

End Sub

... and put a call to CustomizeRV(ReportViewer1) in the page_load event

Answer 6

I've managed to do this on the client side using JavaScript at the bottom of the page.

var exportSelectBox = document.getElementById("ReportViewer1__ctl1__ctl5__ctl0");
exportSelectBox.remove(7);
exportSelectBox.remove(6);
exportSelectBox.remove(5);
exportSelectBox.remove(4);
exportSelectBox.remove(1);
exportSelectBox.remove(1);