protected internal override void OnDragOver(DragEventArgs e)
{
base.OnDragOver(e);
PropertyEditor lastHoverEditor = this.hoverEditor;
this.hoverEditor = this.PickEditorAt(e.X, e.Y, true);
if (this.hoverEditor == this)
{
this.hoverEditor = null;
}
if (lastHoverEditor != this.hoverEditor && lastHoverEditor != null)
{
lastHoverEditor.OnDragLeave(EventArgs.Empty);
}
if (lastHoverEditor != this.hoverEditor && this.hoverEditor != null)
{
e.Effect = DragDropEffects.None;
this.hoverEditor.OnDragEnter(e);
}
if (this.hoverEditor != null)
{
Point editorLoc = this.GetChildLocation(this.hoverEditor);
DragEventArgs childEvent = new DragEventArgs(
e.Data,
e.KeyState,
e.X - editorLoc.X,
e.Y - editorLoc.Y,
e.AllowedEffect,
e.Effect);
this.hoverEditor.OnDragOver(childEvent);
e.Effect = childEvent.Effect;
}
else
{
e.Effect = DragDropEffects.None;
}
}
