private void mergeList_DragOver(object sender, DragEventArgs e)
{
// Drag and drop denied by default.
e.Effect = DragDropEffects.None;
// Is it a valid format?
DragDropItem ud = e.Data.GetData(typeof(DragDropItem)) as DragDropItem;
if (ud != null)
{
//we only ever want an entry in 1x in the list. Remove any duplicates, so you can reorder from the filesystem treeview
TreeNode[] nodes = mergeList.Nodes.Find(ud.Name, false);
if (ud.Source == DragDropItem.SourceType.Drive)
{
if (nodes.Length < 1)
{
e.Effect = DragDropEffects.Copy;
}
}
else
{
e.Effect = DragDropEffects.Copy;
}
}
}
private void mergeList_DragDrop(object sender, DragEventArgs e)
{
// Is it a valid format?
DragDropItem ud = e.Data.GetData(typeof(DragDropItem)) as DragDropItem;
if (ud != null)
{
Point newPoint = mergeList.PointToClient(new Point(e.X, e.Y));
TreeNode selected = mergeList.GetNodeAt(newPoint.X, newPoint.Y);
CheckDrop(mergeList, ud, selected);
}
}
//enable dragging for mergelist
private void mergeList_MouseDown(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
// Get the node underneath the mouse.
TreeNode selected = mergeList.GetNodeAt(e.X, e.Y);
mergeList.SelectedNode = selected;
// Start the drag-and-drop operation with a cloned copy of the node.
if (selected != null)
{
DragDropItem ud = new DragDropItem(selected.Text, DragDropItem.SourceType.Merge);
mergeList.DoDragDrop(ud, DragDropEffects.All);
}
}
}
private void driveAndDirTreeView_MouseDown(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
// Get the node underneath the mouse.
TreeNode selected = driveAndDirTreeView.GetNodeAt(e.X, e.Y);
driveAndDirTreeView.SelectedNode = selected;
// Start the drag-and-drop operation with a cloned copy of the node.
if (selected != null)
{
DragDropItem ud = new DragDropItem(GetSelectedNodesPath(selected), DragDropItem.SourceType.Drive);
if (!String.IsNullOrEmpty(ud.Name))
{
driveAndDirTreeView.DoDragDrop(ud, DragDropEffects.All);
}
}
}
}
private void CheckDrop(TreeView targetTree, DragDropItem newPath, TreeNode selected)
{
// TODO: On Add check to make sure that the root (Or this) node have not already been covered.
if (!String.IsNullOrEmpty(newPath.Name))
{
TreeNode tn = new TreeNode
{
Text = newPath.Name,
ImageKey = newPath.Name,
SelectedImageKey = newPath.Name,
Name = newPath.Name
};
//no node below? stick this at the bottom of the list, else put in before the one your over.
int index = (selected == null) ? targetTree.Nodes.Count - 1 : selected.Index;
//we only ever want an entry in 1x in the list. Remove any duplicates, so you can reorder from the filesystem treeview
TreeNode[] nodes = targetTree.Nodes.Find(newPath.Name, false);
if (nodes.Length > 0)
{
if (nodes[0].Index < index)
{
targetTree.Nodes.Insert(index + 1, tn);
nodes[0].Remove();
}
else if (nodes[0].Index > index)
{
targetTree.Nodes.Insert(index, tn);
nodes[0].Remove();
}
}
else if (newPath.Source == DragDropItem.SourceType.Drive)
{
targetTree.Nodes.Insert(index, tn);
}
targetTree.SelectedNode = tn;
RestartExpectedOutput();
}
}
