void _superList_DragDropEx(object sender, SuperlistDragEventArgs ea)
{
bool changed = false;
GroupSection gs = ea.SectionOver as GroupSection;
if (gs != null)
{
IDataObject dataObject = ea.DragEventArgs.Data;
string[] formats = dataObject.GetFormats();
foreach (string format in formats)
{
object[] items = dataObject.GetData(format) as object[];
foreach (object item in items)
{
RowIdentifier ri = item as RowIdentifier;
if (ri != null)
{
foreach (Person p in ri.Items)
{
ApplyDragDropChanges(gs.RowIdentifier.GroupColumns, (Person)gs.RowIdentifier.Items[0], p);
changed = true;
}
}
}
}
}
if (changed)
{
_superList.Items.Sort();
}
}
void _superList_DragOver(object sender, SuperlistDragEventArgs e)
{
//
// In this example we're interested if the section over has a grouped section
// for an ancestor. If it does then we allow dropping on the section
GroupSection gs = e.SectionOver.GetAncestor <GroupSection>(true);
if (gs != null)
{
e.SectionAllowedToDropOn = gs;
return;
}
e.DragEventArgs.Effect = DragDropEffects.None;
}
void _listControl_DragOverEx(object sender, SuperlistDragEventArgs ea)
{
ListControl senderControl = sender as ListControl;
if (senderControl != null)
{
Person[] items = PersonsFromDataObject(ea.DragEventArgs.Data);
foreach (Person p in items)
{
if (senderControl.Items.IndexOf(p) != -1)
{
return; // don't allow items to be dropped on ourself.
}
}
ea.SectionAllowedToDropOn = ea.SectionOver;
return;
}
ea.DragEventArgs.Effect = DragDropEffects.None;
}
void _listControl_DragDropEx(object sender, SuperlistDragEventArgs ea)
{
ListControl senderControl = sender as ListControl;
if (senderControl != null)
{
Person[] persons = PersonsFromDataObject(ea.DragEventArgs.Data);
if (sender == _listControl1) // we remove the persons from the other list in this example and add to the sender
{
_listControl2.Items.RemoveRange(persons);
}
else
{
_listControl1.Items.RemoveRange(persons);
}
senderControl.Items.AddRange(persons);
}
}