The text within the shapes should be wrapped automatically.
Hello,
RadDiagram supports text wrapping when using html content for each shapes. You can set it through the shapes Html property of the shapes:
<telerik:RadDiagram ID="RadDiagram1" runat="server">
<ShapesCollection>
<telerik:DiagramShape Id="s1" X="100" Y="100" Width="200">
<ContentSettings Html="<div style='width:100px'>Long text content on multiple rows</div>" />
...
The other option is to follow the approach form the RadDiagram Overview demo where the text is split into separate rows utilizing the control's Visual template functionality.
Regards,
Vessy
Progress Telerik
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