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How to move caret pos in radeditor

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RichTextBox
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Kenneth
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Kenneth asked on 13 Aug 2014, 03:50 PM
I want to traverse a document and programatically insert merge fields at specific locations.
Below I wrote some code that does traverse the document, but InsertField always inserts the merge filed at the document start. Pos is being moved but it seems the radeditor document caret pos is not.

How can I move the caret position of the rededitor to match where the documnetposition class is positioned?

Also I want to replace keywords in my document with the merge fields, so how do I delete the current word?

Code:

Using reader As New StreamReader(fs)
 
    Dim s As String = reader.ReadToEnd
    Dim provider_xaml As New Telerik.Windows.Documents.FormatProviders.Xaml.XamlFormatProvider
    Dim radEditor As New Telerik.Windows.Documents.Model.RadDocumentEditor(provider_xaml.Import(s))
    Dim pos As New Telerik.Windows.Documents.DocumentPosition(radEditor.Document)
 
    pos.MoveToFirstPositionInDocument()
 
    Do Until Telerik.Windows.Documents.DocumentPosition.IsAtDocumentEnd(pos)
 
        pos.MoveToNextWordStart()
        Dim w As String = pos.GetCurrentSpanBox.Text
        If w.StartsWith("&") Then
            Dim field As New Telerik.Windows.Documents.Model.MergeField
            field.DisplayMode = Telerik.Windows.Documents.Model.FieldDisplayMode.Code
            field.PropertyPath = "Name"
            radEditor.InsertField(field)
        End If
 
    Loop
 
End Using

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Kenneth
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answered on 13 Aug 2014, 07:47 PM
After looking at my code more closely, it does not traverse the document as I expected.  MoveToNextWordStart seems to move within the current word (perhaps the definition of a word would be useful) moving different positions within the word...so I guess I don't know how to traverse a document...

Essentially I want to do a find and replace, but the finds is keyed off of a pattern, like '&{some_text]' and the replace is with a merge filed.

The source document will be rtf, the result will be saved as xaml.  I know how to do everything except the 'find' part.  movetonextwordstart is not acting like I expected
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Kenneth
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answered on 13 Aug 2014, 09:47 PM
I've decided the best way to do this is with the search and regex, so my new code is below.

Once selected, I want to replace the selected text with a merge filed.  How would I do that?

Using reader As New StreamReader(fs)
 
    Dim s As String = reader.ReadToEnd
 
    Dim provider_rtf As New Telerik.Windows.Documents.FormatProviders.Rtf.RtfFormatProvider
 
    editor.Document = provider_rtf.Import(s)
    editor.Document.Selection.Clear()
 
    Dim search As New Telerik.Windows.Documents.TextSearch.DocumentTextSearch(editor.Document)
 
    For Each foundText As Telerik.Windows.Documents.TextSearch.TextRange In search.FindAll("&\(.*\)|&\[.*\]|&[0-9]*")
 
        editor.Document.Selection.AddSelectionStart(foundText.StartPosition)
        editor.Document.Selection.AddSelectionEnd(foundText.EndPosition)
 
    Next
 
    editor.Document.MailMergeDataSource.ItemsSource = EmployeeList
 
End Using
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Kenneth
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answered on 14 Aug 2014, 02:01 AM
Solved.  There was an interesting problem when my regex matched two of my find strings that were butted up against each other, like this:
&[123]&[456].  In this case when I used FindAll and looped through the results, after I replaced &[123] then next match was corrupted, like this: 23 Name}&[456]. th next insert threw an exception that inline was not part of the document, which is true, it was replaced.

I solved this problem my using find instead of find all, that way I'm not changing the document underneath.  Code follows:

In case you are wondering, I'm converting my old rtf fils with my own brand of mergefield into the xam format.

Using reader As New StreamReader(fs)
 
      Dim s As String = reader.ReadToEnd
      Dim provider_rtf As New Telerik.Windows.Documents.FormatProviders.Rtf.RtfFormatProvider
 
      editor.Document = provider_rtf.Import(s)
      editor.Document.Selection.Clear()
 
      Dim search As New Telerik.Windows.Documents.TextSearch.DocumentTextSearch(editor.Document)
 
      Do
          Dim foundText As Telerik.Windows.Documents.TextSearch.TextRange = search.Find("&\(.*\)|&\[.*?\]|&[0-9]*")
 
          If foundText Is Nothing Then Exit Do
 
          editor.Document.Selection.AddSelectionStart(foundText.StartPosition)
          editor.Document.Selection.AddSelectionEnd(foundText.EndPosition)
          Dim sel As String = editor.Document.Selection.GetSelectedText
 
          'todo: replace sel with correct merge field
 
          Dim field As New Telerik.Windows.Documents.Model.MergeField
          field.DisplayMode = Telerik.Windows.Documents.Model.FieldDisplayMode.Code
          field.PropertyPath = "Name"
          editor.InsertField(field)
      Loop
 
      editor.Document.MailMergeDataSource.ItemsSource = EmployeeList
 
  End Using


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Petya
Telerik team
answered on 18 Aug 2014, 11:18 AM
Hi Kenneth,

I'm glad to hear you were able to replicate the desired scenario and thank you for sharing your solution with the community. Should you have any additional questions please feel free to get back to us.

Regards,
Petya
Telerik
 
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Kenneth
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Kenneth
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Petya
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