private void GroupsTree_DragDrop(object o, DragDropArgs args)
{
Drag.Finish(args.Context, true, true, args.Time);
if (grid.Selection.Count == 0)
{
return;
}
TreePath path;
TreeViewDropPosition pos;
groupsPanel.GroupsTree.GetDestRowAtPos(args.X, args.Y, out path, out pos);
TreeIter row;
groupsPanel.GroupsTree.Model.GetIter(out row, path);
G group = (G)groupsPanel.GroupsTree.Model.GetValue(row, 2);
using (Message messageDialog = GetMovingToGroupMessage(group.Name)) {
messageDialog.Buttons = MessageButtons.YesNo;
if (messageDialog.Run() != ResponseType.Yes)
{
return;
}
foreach (int selectedIndex in grid.Selection)
{
object entity = grid.Model [selectedIndex];
IPersistableEntity <T> persistableEntity = entity as IPersistableEntity <T>;
if (persistableEntity == null)
{
continue;
}
IHirarchicalEntity hirarchicalEntity = entity as IHirarchicalEntity;
if (hirarchicalEntity == null)
{
continue;
}
if (group.Id == GroupBase <G> .DeletedGroupId)
{
hirarchicalEntity.Deleted = true;
hirarchicalEntity.GroupId = GroupBase <G> .DefaultGroupId;
}
else
{
hirarchicalEntity.Deleted = false;
hirarchicalEntity.GroupId = group.Id;
}
persistableEntity.CommitChanges();
}
OnEntitiesChanged(groupsPanel.GetSelectedGroupId());
OnEntitiesMovedToAGroup();
}
}
protected virtual long?GetEntityGroup(T entity)
{
IHirarchicalEntity groupEnt = entity as IHirarchicalEntity;
if (groupEnt != null)
{
return(groupEnt.GroupId);
}
return(null);
}
protected override void ReinitializeGrid(bool reinitGroups, long?selectedGroup)
{
if (reinitializing)
{
return;
}
try {
reinitializing = true;
if (btnGroups.Active)
{
if (reinitGroups)
{
if (selectedGroup.HasValue)
{
selectedGroupId = selectedGroup.Value;
}
else if (groupsPanel.GroupsCount > 0)
{
selectedGroupId = groupsPanel.GetSelectedGroupId();
}
else
{
LoadSavedGroup();
}
groupsPanel.LoadGroups(GetAllGroups());
if (SelectedItems.Length > 0)
{
T lastSelected = SelectedItems [SelectedItems.Length - 1];
IHirarchicalEntity lastSelectedHieararchical = lastSelected as IHirarchicalEntity;
if (lastSelectedHieararchical == null || !lastSelectedHieararchical.Deleted)
{
selectedGroupId = GetEntityGroup(lastSelected);
}
}
if ((!selectedGroupId.HasValue || !groupsPanel.SelectGroupId((int)selectedGroupId)) &&
groupsPanel.SelectFirstGroup())
{
selectedGroupId = groupsPanel.GetSelectedGroupId();
}
}
SaveGroup();
}
else
{
selectedGroupId = null;
}
GetNewEntities();
grid.GrabFocus();
bool selected = false;
if (selectedId.HasValue)
{
int index = entities.FindIndex(e => Equals(propertyForID.GetValue(e, null), selectedId));
if (index >= 0)
{
grid.Selection.Clear();
grid.Selection.Select(index);
grid.FocusRow(index);
selected = true;
}
}
if (selected)
{
RefreshTotalRows();
}
else
{
SelectFirstRow();
}
} finally {
reinitializing = false;
}
}
