Hi
I need to disable the export excel in report viewer in asp.ne
I have debugged , shows "Object reference not set to an instance of an object" in this line
"Dim ListRenderingExtensions As System.Reflection.MethodInfo = m_previewService.FieldType.GetMethod("ListRenderingExtensions", Flags)"
pls help me
maideen
Protected Sub DisableFormat(ByRef viewer As ReportViewer, ByVal formatName As String)
Const Flags As System.Reflection.BindingFlags = System.Reflection.BindingFlags.NonPublic + System.Reflection.BindingFlags.Public + System.Reflection.BindingFlags.Instance
Dim m_previewService As System.Reflection.FieldInfo = viewer.LocalReport.GetType().GetField("m_previewService", Flags)
Dim ListRenderingExtensions As System.Reflection.MethodInfo = m_previewService.FieldType.GetMethod("ListRenderingExtensions", Flags)
Dim previewServiceInstance As Object = m_previewService.GetValue(viewer.LocalReport)
Dim extensions As IList = ListRenderingExtensions.Invoke(previewServiceInstance, Nothing)
Dim name As System.Reflection.PropertyInfo = extensions(0).GetType().GetProperty("Name", Flags)
Dim extension As Object
For Each extension In Extensions
If (String.Compare(name.GetValue(extension, Nothing).ToString(), formatName, True) = 0) Then
Dim m_isVisible As System.Reflection.FieldInfo = extension.GetType().GetField("m_isVisible", System.Reflection.BindingFlags.NonPublic + System.Reflection.BindingFlags.Instance)
m_isVisible.SetValue(extension, True)
Dim m_isExposedExternally As System.Reflection.FieldInfo = extension.GetType().GetField("m_isExposedExternally", System.Reflection.BindingFlags.NonPublic + System.Reflection.BindingFlags.Instance)
m_isExposedExternally.SetValue(extension, True)
Exit For
End If
Next extension
End Sub
Protected Sub ReportViewer1_PreRender(sender As Object, e As EventArgs) Handles ReportViewer1.PreRender
Call DisableFormat(Me.ReportViewer1, "Excel") ' Disable EXCEL format
End Sub
