We use cookies to give you the best experience on our website. If you continue to browse, then you agree to our privacy policy and cookie policy.
Unfortunately, activation email could not send to your email. Please try again.
Syncfusion Feedback

How do I extend the functionality of the Essential Diagram TextNode and RichTextNode classes?


The first step is to create the custom Text or RichText node types in your application by subclassing the base Essential Diagram TextNode or RichTextNode classes. Once the custom text node has been defined, you will have to initialize the Diagram Text/RichTextTool to use this class in place of the default TextNode/RichTextNode. This is done by accessing the TextTool/RichTextTool from the Diagram's Controller using the Controller.GetTool(string toolname) with 'TextTool'/'RichTextTool' as the tool name, and initializing it's TextTool.TextFactory/RichTextTool.RichTextFactory property with a delegate that creates the derived TextNode/RichTextNode type. A sample factory delegate is shown below,


// Factory method for creating rich text nodes for the RichTextTool.

protected RichTextNode MyRichTextFactory(RectangleF bounds, string text)


Syncfusion.Windows.Forms.Diagram.RichTextNode rtfNode = new MyRichTextNode("Rich Text");

rtfNode.Bounds = bounds;

return rtfNode;



' Factory method for creating rich text nodes for the RichTextTool.

Protected Function MyRichTextFactory(ByVal bounds As RectangleF, ByVal text As String) As RichTextNode

Dim rtfNode As Syncfusion.Windows.Forms.Diagram.RichTextNode = New MyRichTextNode("Rich Text")

rtfNode.Bounds = bounds

Return rtfNode

End Function

Article ID: Published Date: Last Revised Date: Platform: Control:
187 04/30/2011 07/10/2014 Windows Forms Diagram
Did you find this information helpful?
Add Comment
You must log in to leave a comment

Warning Icon You are using an outdated version of Internet Explorer that may not display all features of this and other websites. Upgrade to Internet Explorer 8 or newer for a better experience.Close Icon