Writing formatted text at a bookmark in Word

[chakotha]

I been going over a few of the posts on opening Word documents and writing to them at a Bookmark through VB.NET and I have that working OK. What I would like to do is use bold and underlining formatting (and more no doubt)

At the top of the class I have

Private WordApp As New Word.Application

and the main code is:

Dim fileName As Object = "C:\Proposal.doc"
        Dim [readOnly] As Object = False
        Dim isVisible As Object = True

        Dim missing As Object = System.Reflection.Missing.Value

        Dim WordDoc As New Word.Document

        WordApp.Visible = True
        WordDoc = WordApp.Documents.Open(fileName, missing,
[readOnly], missing, missing, missing, missing, missing, missing,
 missing, missing, isVisible)

        WordApp.Activate()

        WordDoc.Bookmarks.Item("MyBookmark").Range.Text = "I am a line of text"

If I were to start typing at the start of the document the following works:

WordApp.Selection.Font.Bold = True
        WordApp.Selection.TypeText("Bold Text")
        WordApp.Selection.Font.Bold = False

but I can't this working at the bookmark.

Help much appreciated