private void dragOver(DragEventArgs e)
{
IDataObject dataObject = e.Data;
if (dataObject == null)
{
return;
}
var data = dataObject.GetData(typeof(DraggableRowsBehavior.Data)) as DraggableRowsBehavior.Data;
if (data == null)
{
return;
}
var lbItem = VisualHelpers.FindAncestor <ListBoxItem>(e.OriginalSource);
if (lbItem != null)
{
lbItem.IsSelected = true;
}
// add appropriate device for mappings, if file is empty
if (!Devices.Any())
{
var copy = (data.SenderDataContext as DeviceViewModel).Copy(false);
addDevice(copy);
SelectedDevice = Devices.First();
}
}
public override bool IsValidDropTarget(DependencyObject control)
{
if (getRow(control) != null)
{
return(true);
}
// allow drop on empty selector
var grid = VisualHelpers.FindAncestor <DataGrid>(control);
if (grid != null && !grid.HasItems)
{
return(true);
}
return(false);
}
public override bool IsValidDropTarget(DependencyObject control)
{
if (getListBoxItem(control) != null)
{
return(true);
}
// allow drop on empty selector
var listbox = VisualHelpers.FindAncestor <ListBox>(control);
if (listbox != null && !listbox.HasItems)
{
return(true);
}
return(false);
}
private DataGridRow getRow(DependencyObject control)
{
return(VisualHelpers.FindAncestor <DataGridRow>(control));
}
private ListBoxItem getListBoxItem(DependencyObject control)
{
return(VisualHelpers.FindAncestor <ListBoxItem>(control));
}