ISDBTreeNode::OnDragDrop

From MMWiki

CoClass SDBTreeNode, Interface ISDBTreeNode

Property Get/Let OnDragDrop As String

Property description

Name of an event function in ISDBTreeNode::UseScript file that is called to handle drag and drop. The function is called with the following parameters:

destNode

Target tree node.

srcNode

The node from which the list of tracks to be dragged originates.

songList

List of tracks that are dragged.

dropType

is either

• 1 - Copy - Tracks are expected to be copied.
• 2 - Move - Tracks are expected to be moved.

test

if true, the drop operation should not occur, the method is only expected to return a value that indicates what kind of operation is by default expected. It can be any of values used in 'dropType' parameter and in addition the following can be used

• 0 - No drop - tracks cannot be dropped here.
• 3 - Just Move - Tracks can only be moved here (no copied). User cannot change the shape of cursor to copy.
• 4 - Just Copy - Tracks can only be copied here (no moved). User cannot change the shape of cursor to move.

Example code

' The function can look like:
 
Function LyricistDragDrop( destNode, srcNode, SongList, DropType, Test)
  If Test Then
    LyricistDragDrop = 2         ' Move operation
  Else
    Dim i, itm
    For i=0 To SongList.Count-1
      Set itm = SongList.Item(i)
      itm.Lyricist = destNode.CustomData
      itm.UpdateDB
    Next
  End If
End Function

Related Topics

• ISDBTreeNode::UseScript