How to perform the node drag drop between a WinForms XPToolBar and TreeViewAdv?
Perform the node drag drop between XPToolBar and TreeViewAdv
Please refer the following steps to be performed to achieve this:
1. Place the TreeViewAdv and XPToolBar on the form.
2. Add nodes to the TreeViewAdv.
3. Set the AllowDrop property as True of the XPToolBar.
4. Handle the TreeViewAdv MouseDown event to access the node which is to be dragged.
5. Handle the DragDrop and DragEnter events of XPToolBar to determine what is dragged from the TreeViewAdv.
Please refer the below code snippet which illustrates this:
C#
private void xpToolBar1_DragEnter(object sender, System.Windows.Forms.DragEventArgs e)
{
Console.WriteLine("XPToolBar Drag Enter");
if (e.Data.GetDataPresent(typeof(TreeNodeAdv)))
e.Effect = DragDropEffects.Copy;
else
e.Effect = DragDropEffects.None;
}
private void xpToolBar1_DragDrop(object sender, System.Windows.Forms.DragEventArgs e)
{
Console.WriteLine("XPToolBar Drag Drop");
if (e.Data.GetDataPresent(typeof(TreeNodeAdv)))
{
TreeNodeAdv node = e.Data.GetData(typeof(TreeNodeAdv)) as TreeNodeAdv;
BarItem bitem = new BarItem(node.Text);
this.xpToolBar1.Items.Add(bitem);
}
}
private void treeViewAdv1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
// get the point where the mouse was left clicked
Point p = this.treeViewAdv1.PointToClient(Control.MousePosition);
// get the node at the left click point
TreeNodeAdv node = this.treeViewAdv1.PointToNode(p);
this.treeViewAdv1.SelectedNode = node;
this.treeViewAdv1.Refresh();
DoDragDrop(node, DragDropEffects.Copy);
}
}
VB
Private Sub XpToolBar1_DragDrop(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DragEventArgs) Handles XpToolBar1.DragDrop
Console.WriteLine("XPToolBar Drag Drop")
If e.Data.GetDataPresent(GetType(TreeNodeAdv)) Then
Dim node As TreeNodeAdv = CType(IIf(TypeOf e.Data.GetData(GetType(TreeNodeAdv)) Is TreeNodeAdv, e.Data.GetData(GetType(TreeNodeAdv)), Nothing), TreeNodeAdv)
Dim bitem As BarItem = New BarItem(node.Text)
Me.XpToolBar1.Items.Add(bitem)
End If
End Sub
Private Sub XpToolBar1_DragEnter(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DragEventArgs) Handles XpToolBar1.DragEnter
Console.WriteLine("XPToolBar Drag Enter")
If e.Data.GetDataPresent(GetType(TreeNodeAdv)) Then
e.Effect = DragDropEffects.Copy
Else
e.Effect = DragDropEffects.None
End If
End Sub
Private Sub TreeViewAdv1_MouseDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles TreeViewAdv1.MouseDown
If e.Button = Windows.Forms.MouseButtons.Left Then
' get the point where the mouse was left clicked
Dim p As Point = Me.TreeViewAdv1.PointToClient(Control.MousePosition)
' get the node at the left click point
Dim node As TreeNodeAdv = Me.TreeViewAdv1.PointToNode(p)
Me.TreeViewAdv1.SelectedNode = node
Me.TreeViewAdv1.Refresh()
DoDragDrop(node, DragDropEffects.Copy)
End If
End Sub
Sample: https://help.syncfusion.com/support/samples/KB/Tools.Windows/TDragDrop/DragDrop.zip
