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HtmlFormatProvider Exception

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RichTextBox

This is a migrated thread and some comments may be shown as answers.

keith schaefer asked on 07 Oct 2010, 05:48 PM

Hi,

I am trying to import HTML into a RichTextBox using HtmlFormatProvider.
It is throwing an exception

{System.NullReferenceException: Object reference not set to an instance of an object.

This is the Code i am using

var provider = new HtmlFormatProvider();

OpenFileDialog openDialog = new OpenFileDialog();

openDialog.Multiselect = false;

bool? dialogResult = openDialog.ShowDialog();

if (dialogResult == true) {

using (FileStream stream = openDialog.File.OpenRead()) {

stream.Seek(0, SeekOrigin.Begin);

rich.Document = provider.Import(stream);

}

This is my XAML

<Controls:RadRichTextBox x:Name="rich" >

<Controls:RadRichTextBox.Document>

<Model:RadDocument>

</Model:RadDocument>

</Controls:RadRichTextBox.Document>

</Controls:RadRichTextBox>

This is the HTML i am trying to import

<HTML> <BODY> Test Html </BODY> </HTML>

This is the Stack Trace.

   at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at System.Windows.UIElement.UpdateLayout()
   at Telerik.Windows.Documents.UI.DocumentPresenterBase.UpdateEditorLayout()
   at Telerik.Windows.Documents.UI.DocumentPresenterBase.DoOnDocumentChanged()
   at Telerik.Windows.Documents.UI.DocumentPresenterBase.OnOwnerChanged()
   at Telerik.Windows.Documents.UI.DocumentPresenterBase.set_Owner(RadRichTextBox value)
   at Telerik.Windows.Controls.RadRichTextBox.InitActiveEditorPresenter()
   at Telerik.Windows.Controls.RadRichTextBox.set_Document(RadDocument value)
   at SilverlightApplication1.MainPage.Button_Click_1(Object sender, RoutedEventArgs e)
   at System.Windows.Controls.Primitives.ButtonBase.OnClick()
   at System.Windows.Controls.Button.OnClick()
   at System.Windows.Controls.Primitives.ButtonBase.OnMouseLeftButtonUp(MouseButtonEventArgs e)
   at System.Windows.Controls.Control.OnMouseLeftButtonUp(Control ctrl, EventArgs e)
   at MS.Internal.JoltHelper.FireEvent(IntPtr unmanagedObj, IntPtr unmanagedObjArgs, Int32 argsTypeIndex, String eventName)

Thanks !

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HtmlFormatProvider Exception

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