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Editorial Team
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Asked: 2026-05-30T16:30:53+00:00

I’m trying to provide a way to forward emails, just as we do in

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I’m trying to provide a way to forward emails, just as we do in Outlook. When the user clicks forward, it opens a form with the original message and header information on top, giving the user an opportunity to modify the body. To get the message, I do the following. 

    var item = (EmailMessage)dataGridEmail.SelectedItem;
    ResponseMessage forward = item.CreateForward();
    textBlockForward.Text = forward.Body;

I get an ServiceObjectPropertyException with message “You must load or assign this property before you can read its value”. If I try to load the value of the body property before accessing, I get NotSupportedException with message “Specified method is not supported”. Is there a way to get the forwarding message before actually sending it?

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1 Answer

  1. Editorial Team

    Instead of using forward.Body, you should use item.Body to populate your textBlockForward control. See Forwarding Email Messages using EWS on MSDN for more details.

    var item = (EmailMessage)dataGridEmail.SelectedItem;
ResponseMessage forward = item.CreateForward();
textBlockForward.Text = item.Body; // needs to come from original message source
forward.BodyPrefix = "new body contents"; // prepended body content
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