Update - when I un-check Supports Partial Rendering for the module control - the contents of the TextEditor are saved properly.

However, when I populate the TextEditor, and I assign an empty string to the Text property - the TextEditor retains the previous value  (i.e. whatever was in the TextEditor before it was re-populated with another selection)

I check the length of the string - and even though the line of code in blue executes as expected - the TextEditor retains the previous content if I try to assign the Text property an empty string

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Dim strContent As String = objItem.TemplateContentTX.ToString.Trim

  If strContent.Length > 0 Then
              rtNewsletter.Text = objItem.TemplateContentTX.ToString
     Else
            rtNewsletter.Text = String.Empty  'this code executes - however theTextEditor retains the previous value
  End If

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Note:  I get the same behaviour with all three htmlEditor providers....

I am also experiencing this same issue. I have not yet found a solution, but this is what I have learned:

I am experiencing two different issue - both when using a dnn:texteditor in a module with partial rendering enabled.

1. New Values are not saving - When when I click update, the values are not being saved. I did find this post, but it is a couple of year old: http://www.dotnetnuke.com/Resources/F.... It reports a smilar problem, resolved by registering the submit/update panel in the ajax update panel (enabling partial redering places all of your code in an update panel). I haven't get tried this... but it might be worth a try.

2. The Rad and Telerik Editors don't work . Text does not load. The toolbar items hover-over. The buttons cause the page to scroll to the top - but don't do anything . The Design/HTML/Preview buttons at the bottom don't do anything. Using firebug - I identified the following error when loading the page (with the  texteditor in a Form OnClientCommandExecuting is not defined. Not really sure what this means - but it might give someone else an idea on how to resolve this.

If you do come up with a solution, please share it with us!