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Editorial Team
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Asked: 2026-06-11T02:28:56+00:00

I’m implementing a TreeControl using the DotNetBar Advtree component. However I seem to be

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I’m implementing a TreeControl using the DotNetBar Advtree component. However I seem to be struggling to find the property to make it impossible for a particular node to have any children. What I want to stop the following below;

How to stop this with the TreeControl component?

For example an RSS feed cannot be contained with an RSS feed. Some in effect I want some nodes to be draggable, and can have children, and others only draggable.

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Thanks for any help. I’ve noticed the property NodesIndent which I’ve setting to -1, or 5000 but neither was any help.

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1 Answer

  1. Editorial Team

    Just spotted in the documentation;

    “Gets or sets the new insert position inside of NewParentNode.Nodes collection for the node being dragged. If InsertPosition is -1 the ParentNode refers to the current mouse over node and drag & drop node will be added as child node to it.”

    So basically I can capture whether or not it is being added to as child node, compare the node type and decide whether to accept the drop.

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