Assembly: PresentationFramework (in PresentationFramework.dll)
The following example uses the property to insert content at the beginning of a FlowDocument.
// Create a new, empty FlowDocument. FlowDocument flowDoc = new FlowDocument(); // Insert an initial paragraph at the beginning of the empty FlowDocument. flowDoc.Blocks.Add(new Paragraph(new Run( "Since the new FlowDocument is empty at this point, this will be the initial content " + "in the FlowDocument." ))); // Insert a line-break at the beginnign of the document, before the previously inserted paragraph. flowDoc.Blocks.InsertBefore(flowDoc.Blocks.FirstBlock, new Paragraph(new LineBreak())); // Insert another paragraph at the beginning of the document. flowDoc.Blocks.InsertBefore(flowDoc.Blocks.FirstBlock, new Paragraph(new Run( "This paragraph will be inserted before the previously added paragraph, replacing the previously" + "added paragraph as the first paragraph in the document." )));
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.