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Unity Engine

CanStartDrag(CanStartDragArgs)

This function is called whenever a TreeViewItem is clicked and dragged. It returns false by default.
Read time 1 minuteLast updated 11 days ago

Definition

Warning
Removed. TreeView is now deprecated. You can likely now use TreeView\<int\> instead and not think more about it. But if you were using that identifier to store InstanceID data, you should instead opt to upgrade your TreeViews to use TreeView\<InstanceID\> to get the proper typing.
protected virtual bool CanStartDrag(TreeView.CanStartDragArgs args)

Parameters

args

CanStartDragArgs

Returns

Type

Description

bool

Remarks

Override this function so it returns true to enable drag and drop behavior for TreeViewItems.
You control TreeView drag and drop in the following order:\
  1. override TreeView.CanStartDrag to enable dragging TreeViewItems.\
  2. override SetupDragAndDrop to set which TreeViewItems are dragged.\
  3. override TreeView.HandleDragAndDrop to control the drag and drop behavior of the TreeView.\