private void List_MouseMove(object sender, MouseEventArgs e)
{
// Get the current mouse position
Point mousePos = e.GetPosition(null);
Vector diff = startPoint - mousePos;
if (e.LeftButton == MouseButtonState.Pressed &&
(Math.Abs(diff.X) > SystemParameters.MinimumHorizontalDragDistance ||
Math.Abs(diff.Y) > SystemParameters.MinimumVerticalDragDistance))
{
// Get the dragged ListViewItem
ListView listView = sender as ListView;
ListViewItem listViewItem =
FindAnchestor <ListViewItem>((DependencyObject)e.OriginalSource);
if (listViewItem != null)
{
// Find the data behind the ListViewItem
HlpTable row = (HlpTable)listView.ItemContainerGenerator.
ItemFromContainer(listViewItem);
// Initialize the drag & drop operation
DataObject dragData = new DataObject("myFormat", row);
DragDrop.DoDragDrop(listViewItem, dragData, DragDropEffects.Move);
}
}
}
private void DropList_Drop(object sender, DragEventArgs e)
{
if (e.Data.GetDataPresent("myFormat"))
{
HlpTable contact = e.Data.GetData("myFormat") as HlpTable;
ListView listView = sender as ListView;
ListViewItem listViewItem =
FindAnchestor <ListViewItem>((DependencyObject)e.OriginalSource);
// Find the data behind the ListViewItem
HlpTable row = (HlpTable)listView.ItemContainerGenerator.
ItemFromContainer(listViewItem);
row.Mapping = contact.Mapping;
listView.ItemsSource = sh.GetSelectTable[1].ColumnsList;
ICollectionView view = CollectionViewSource.GetDefaultView(sh.GetSelectTable[1].ColumnsList);
view.Refresh();
}
}