ItemDragEventArgs Class
.NET Framework 3.0
Provides data for the ItemDrag event of the ListView and TreeView controls.
Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in system.windows.forms.dll)
Assembly: System.Windows.Forms (in system.windows.forms.dll)
The following example illustrates the use of ItemDragEventArgs when enabling drag-and-drop operations within a TreeView. The Button property determines whether the dragged node should be moved or copied to its destination. The node, represented by the Item property, is then passed to the TreeView control's DoDragDrop method along with a value indicating the desired effect.
For the complete example, see the TreeView.ItemDrag reference topic.
private void treeView1_ItemDrag(object sender, ItemDragEventArgs e) { // Move the dragged node when the left mouse button is used. if (e.Button == MouseButtons.Left) { DoDragDrop(e.Item, DragDropEffects.Move); } // Copy the dragged node when the right mouse button is used. else if (e.Button == MouseButtons.Right) { DoDragDrop(e.Item, DragDropEffects.Copy); } }
private void treeView1_ItemDrag(Object sender, ItemDragEventArgs e)
{
// Move the dragged node when the left mouse button is used.
if (e.get_Button().Equals(get_MouseButtons().Left)) {
DoDragDrop(e.get_Item(), DragDropEffects.Move);
}
// Copy the dragged node when the right mouse button is used.
else {
if (e.get_Button().Equals(get_MouseButtons().Right)) {
DoDragDrop(e.get_Item(), DragDropEffects.Copy);
}
}
} //treeView1_ItemDrag
Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.Community Additions
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