/// <summary>
/// Gets called when the mouse enters the control while dragging.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void _DragEnter(object sender, DragEventArgs e)
{
var treeView = sender as TreeView;
if (treeView == null || treeView != this._treeView)
{
return;
}
if (!e.Data.GetDataPresent("System.Windows.Forms.TreeNode", false) || (TreeNode)e.Data.GetData("System.Windows.Forms.TreeNode") != this._draggedNode)
{
e.Effect = DragDropEffects.None;
return;
}
var screen = new Drawing.Point(e.X, e.Y);
var client = treeView.PointToClient(screen);
var window = client;
DragHelper.ImageList_DragEnter(treeView.Handle, window.X, window.Y);
// Enable timer for scrolling dragged item
this._dragScrollTimer.Enabled = true;
e.Effect = DragDropEffects.Move;
}
private void TemplateTree_DragEnter(object sender, System.Windows.Forms.DragEventArgs e)
{
Point point = TemplateTree.PointToClient(new Point(e.X, e.Y));
DragHelper.ImageList_DragEnter(TemplateTree.Handle, point.X, point.Y);
e.Effect = DragDropEffects.Move;
}
private void treeView1_DragEnter(object sender, System.Windows.Forms.DragEventArgs e)
{
if (e.Data.GetDataPresent(DataFormats.Text))
{
e.Effect = DragDropEffects.Move;
}
else
{
e.Effect = DragDropEffects.None;
}
DragHelper.ImageList_DragEnter(this.treeView1.Handle, e.X - this.treeView1.Left,
e.Y - this.treeView1.Top);
}
protected override void OnDragEnter(DragEventArgs drgevent)
{
try
{
DragHelper.ImageList_DragEnter(this.Handle, drgevent.X - this.Left,
drgevent.Y - this.Top);
// Enable timer for scrolling dragged item
this.timer.Enabled = true;
}
catch (Exception e)
{
ACSLog.InsertLog(MessageBoxIcon.Error, e);
}
}
private void suiteTreeView_DragEnter(object sender, DragEventArgs e)
{
DragHelper.ImageList_DragEnter(this.suiteTreeView.Handle, e.X - this.suiteTreeView.Left, e.Y - this.suiteTreeView.Top);
this.timer.Enabled = true;
}
private void BetterTreeView_DragEnter(object sender, DragEventArgs e)
{
DragHelper.ImageList_DragEnter(Handle, e.X - Left,
e.Y - Top);
}