How to set font properties for newly added items Annotations in WPF Diagram (SfDiagram)?

In the WPF Diagram, you can set font properties for newly added Annotations by handling the ItemAdded event. In this event, you can check specific conditions and apply the diagram’s font properties to the font properties of the newly added elements. We have provided the code example for how to achieve this.

Code Snippet:

private void MainWindow_ItemAdded(object sender, ItemAddedEventArgs args)
{
   if (args.Item is NodeViewModel node)
   {
       if (node.Annotations != null)
       {
           foreach (var annotation in (AnnotationCollection)node.Annotations)
           {
               if (annotation is AnnotationEditorViewModel)
               {
               //DgmCtl is the instance of the SfDiagram
                  annotation.FontFamily = DgmCtl.FontFamily;
               }
               else if (annotation is TextAnnotationViewModel)
               {
                  annotation.FontFamily = DgmCtl.FontFamily;
               }
           }
       }
   }
} 

Conclusion
I hope you enjoyed learning about how to set font properties for newly added items Annotations in WPF Diagram
You can refer to our WPF Diagram feature tour page to learn about its other groundbreaking feature representations and documentation, and how to quickly get started for configuration specifications.

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