Import and Export in WPF RichTextBox (SfRichTextBoxAdv)

The SfRichTextBoxAdv allows you to import/export word documents (.docx, .doc), rich text format documents (.rtf), HTML documents (.htm, .html), XAML documents (.xaml) and text documents (.txt).
The following sample code demonstrates how to import contents from a file into SfRichTextBoxAdv.

// Imports the document.
void ImportDocument ()
{
    // Initializes the open file dialog.
    OpenFileDialog openFileDialog = new OpenFileDialog()
    {
        Filter = "All supported files (*.docx,*.doc,*.htm,*.html,*.rtf,*.txt,*.xaml)|*.docx;*.doc;*.htm;*.html;*.rtf;*.txt;*.xaml|Word Document (*.docx)|*.docx|Word 97 - 2003 Document (*.doc)|*.doc|Web Page (*.htm,*.html)|*.htm;*.html|Rich Text File (*.rtf)|*.rtf|Text File (*.txt)|*.txt|Xaml File (*.xaml)|*.xaml",
        FilterIndex = 1,
        Multiselect = false
    };

    if ((bool)openFileDialog.ShowDialog())
    {
        // Loads the file into RichTextBoxAdv.
        richTextBoxAdv.Load(openFileDialog.FileName);
        // Sets the File name as Document Title.
        richTextBoxAdv.DocumentTitle = openFileDialog.FileName.Remove(openFileDialog.FileName.LastIndexOf("."));
    }
}
' Imports the document.
Private Sub ImportDocument()
	' Initializes the open file dialog.
	Dim openFileDialog As New OpenFileDialog() With { _
		Key .Filter = "All supported files (*.docx,*.doc,*.htm,*.html,*.rtf,*.txt,*.xaml)|*.docx;*.doc;*.htm;*.html;*.rtf;*.txt;*.xaml|Word Document (*.docx)|*.docx|Word 97 - 2003 Document (*.doc)|*.doc|Web Page (*.htm,*.html)|*.htm;*.html|Rich Text File (*.rtf)|*.rtf|Text File (*.txt)|*.txt|Xaml File (*.xaml)|*.xaml", _
		Key .FilterIndex = 1, _
		Key .Multiselect = False _
	}

	If CBool(openFileDialog.ShowDialog()) Then
		' Loads the file into RichTextBoxAdv.
		richTextBoxAdv.Load(openFileDialog.FileName)
		' Sets the File name as Document Title.
		richTextBoxAdv.DocumentTitle = openFileDialog.FileName.Remove(openFileDialog.FileName.LastIndexOf("."))
	End If
End Sub

The following code example demonstrates how to export SfRichTextBoxAdv contents into a file.

// Exports the document.
void ExportDocument ()
{    
    // Initializes the file save picker.
    SaveFileDialog saveFileDialog = new SaveFileDialog()
    {
        Filter = "Word Document (*.docx)|*.docx|Word 97 - 2003 Document (*.doc)|*.doc|Web Page (*.htm,*.html)|*.htm;*.html|Rich Text File (*.rtf)|*.rtf|Text File (*.txt)|*.txt|Xaml File (*.xaml)|*.xaml",
        FilterIndex = 1
    };
    if ((bool)saveFileDialog.ShowDialog())
    {
        // Saves the document content into a file.
        richTextBoxAdv.Save(saveFileDialog.FileName);
    }
}
' Exports the document.
Private Sub ExportDocument()
	' Initializes the file save picker.
	Dim saveFileDialog As New SaveFileDialog() With { _
		Key .Filter = "Word Document (*.docx)|*.docx|Word 97 - 2003 Document (*.doc)|*.doc|Web Page (*.htm,*.html)|*.htm;*.html|Rich Text File (*.rtf)|*.rtf|Text File (*.txt)|*.txt|Xaml File (*.xaml)|*.xaml", _
		Key .FilterIndex = 1 _
	}
	If CBool(saveFileDialog.ShowDialog()) Then
		' Saves the document content into a file.
		richTextBoxAdv.Save(saveFileDialog.FileName)
	End If
End Sub

NOTE

When the SfRichTextBoxAdv control encounters an unsupported element, it does not render the element, instead, it continues to the next supported element and render it. Examples of unsupported elements are AutoShapes, watermarks, charts, SmartArt, WordArt, equations, document structure tags, styles, wrapping styles, fields other than hyperlinks, absolutely positioned tables, and absolutely positioned images.

UI Commands for importing/exporting documents

The following code example demonstrates how to bind commands for performing importing and exporting documents.

<!-- Binds button to the OpenDocumentCommand -->
<Button Content="Open" Command="RichTextBoxAdv:SfRichTextBoxAdv.OpenDocumentCommand" CommandTarget="{Binding ElementName=richTextBoxAdv}" />
<!-- Binds button to the SaveDocumentCommand -->
<Button Content="Save" Command="RichTextBoxAdv:SfRichTextBoxAdv.SaveDocumentCommand" CommandTarget="{Binding ElementName=richTextBoxAdv}" />

NOTE

In order to perform import/export documents, the standard keyboard shortcuts such as CTRL + O, CTRL + S can also be used.

Asynchronous import settings

Show or hide the loading page number

The SfRichTextBoxAdv control shows the current loading page number by default at the bottom right corner of the control while loading the document asynchronously. You can hide this loading page number by using the ShowPageNumber property of LoadAsyncSettings class.

The following code example demonstrates how to hide the loading page number in SfRichTextBoxAdv control.

<RichTextBoxAdv:SfRichTextBoxAdv x:Name="richTextBoxAdv">
       <RichTextBoxAdv:SfRichTextBoxAdv.LoadAsyncSettings>
           <RichTextBoxAdv:LoadAsyncSettings ShowPageNumber="False"/>
       </RichTextBoxAdv:SfRichTextBoxAdv.LoadAsyncSettings>
</RichTextBoxAdv:SfRichTextBoxAdv>
// Initializes a new instance of RichTextBoxAdv.
SfRichTextBoxAdv richTextBoxAdv = new SfRichTextBoxAdv();
////Hides the loading page number.
richTextBoxAdv.LoadAsyncSettings.ShowPageNumber = false;
' Initializes a new instance of RichTextBoxAdv.
Dim richTextBoxAdv As New SfRichTextBoxAdv()
' Hides the loading page number.
richTextBoxAdv.LoadAsyncSettings.ShowPageNumber = false

NOTE

This API is supported starting from release version v17.4.0.X.