Expand/Collapse the children Objects of group Object

GroupNode Expand or Collapse

Diagram control has built-in support to expand/collapse the nodes by using the node’s "IsExpanded" property. We can enable/disable the node’s "IsExpanded" property to expand/collapse the child nodes of the current node. This behavior works fine within the group node as well.

The following code illustrates to expand the parent node:

[C#]

Syncfusion.Windows.Forms.Diagram.Rectangle rect = new Syncfusion.Windows.Forms.Diagram.Rectangle(100, 100, 100, 100);
rect.IsExpanded = true;

[VB]

Dim rect As New Syncfusion.Windows.Forms.Diagram.Rectangle(100, 100, 100, 100)
rect.IsExpanded = True

The following code illustrates to collapse the parent node:

[C#]

Syncfusion.Windows.Forms.Diagram.Rectangle rect = new Syncfusion.Windows.Forms.Diagram.Rectangle(100, 100, 100, 100);
rect.IsExpanded = false;

[VB]

Dim rect As New Syncfusion.Windows.Forms.Diagram.Rectangle(100, 100, 100, 100)
rect.IsExpanded = False

Conclusion

I hope you enjoyed learning about how to expand/Collapse the children Objects of group Object.

You can refer to our  WinForms Diagram feature tour page to learn about its other groundbreaking feature representations. You can also explore our WinForms Diagram documentation to understand how to create and manipulate data.

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