private void DragSource_DragEnter(object sender, Infragistics.DragDrop.DragDropCancelEventArgs e)
{
//set drag data
var xdt = e.DragSource as CardPanel;
var cpr = xdt.TryFindParent <DataRecordPresenter>();
var ep = cpr.DataRecord.DataItem as NeighborhoodWatch;
if (ep == null)
{
e.Cancel = true;
}
else
{
e.Data = ep;
}
//change allow or not
e.OperationType = OperationType.DropNotAllowed;
if (e.DropTarget is XamDataTreeNodeControl)
{
XamDataTreeNodeControl drca = e.DropTarget as XamDataTreeNodeControl;
var dtnode = drca.Node;
if (dtnode != null)
{
DirectoryNode dr = dtnode.Data as DirectoryNode;
if (dr.IsFolder)
{
e.OperationType = OperationType.Move;
}
}
}
}
private void xamDataTreeAccount_NodeDragEnd(object sender, Infragistics.DragDrop.DragDropEventArgs e)
{
if (e.OperationType != null && e.OperationType == OperationType.Copy)
{
XamDataTreeNode origNode = e.Data as XamDataTreeNode;
if (origNode == null)
{
return;
}
PortfolioVM porfVm = origNode.Data as PortfolioVM;
if (porfVm == null)
{
return;
}
XamDataTreeNodeControl treeNodeCtrl = e.DropTarget as XamDataTreeNodeControl;
if (treeNodeCtrl == null)
{
return;
}
AccountVM acctVm = treeNodeCtrl.Node.Data as AccountVM;
if (acctVm == null)
{
return;
}
XElement portfElem = porfVm.Persist();
var cloned = PortfolioVM.Load(acctVm, portfElem);
acctVm.AddPorfolio(cloned);
ViewModel.Persist();
}
}
private void DragSource_DragOver(object sender, Infragistics.DragDrop.DragDropMoveEventArgs e)
{
if (e.DropTarget is XamDataTreeNodeControl)
{
XamDataTreeNodeControl drca = e.DropTarget as XamDataTreeNodeControl;
var dtnode = drca.Node;
if (dtnode == null)
{
e.OperationType = OperationType.DropNotAllowed;
}
}
}
