public void AddSibling()
{
// Instanciate a new object
ControlObjectModel controllerItem = new ControlObjectModel
{
ID = Guid.NewGuid(),
Project_ID = Globals.Project_ID,
ObjectName = "New Object",
Description = "New Object Description",
IsChanged = false,
IsNew = true,
ControlObjectType_ID = TypeViewModelLocator.GetTypeVM().GetTypeGroupID("Object"),
ChildControlObjects = new TD.ObservableItemCollection <ControlObjectModel>()
};
// If no item has been selected, put the object in the root of the tree
if (SelectedItem == null)
{
controllerItem.Parent_ID = null;
ControlObjects.Add(controllerItem);
}
// If the selected item is in the root, put the new object in the root also
else if (SelectedItem.Parent_ID == null)
{
controllerItem.Parent_ID = null;
controllerItem.ControlObjectType_ID = SelectedItem.ControlObjectType_ID;
ControlObjects.Insert(ControlObjects.IndexOf(SelectedItem) + 1, controllerItem);
}
// Otherwise get the parent object and add the new object as a child
else
{
ControlObjectModel parentItem = GetController(SelectedItem.Parent_ID);
controllerItem.Parent_ID = SelectedItem.Parent_ID;
controllerItem.ControlObjectType_ID = SelectedItem.ControlObjectType_ID;
parentItem.ChildControlObjects.Insert(parentItem.ChildControlObjects.IndexOf(SelectedItem) + 1, controllerItem);
}
IsChanged = true;
OnFocusRequested("ObjectName");
}
/// <summary>
/// Method triggered by the TreeListViewDragDropBehavior Class. Takes care of moving on item in the tree, which can be from
/// any level to any level
/// </summary>
/// <param name="destination"></param>
public void MoveSelection(TreeListViewRow destination) // Collection<ControlObjectModel> selectedItems, ControlObjectModel destination )
{
if (destination != null)
{
ControlObjectModel destinationItem = (destination.DataContext) as ControlObjectModel;
try
{
// Setup a private collection with the selected items only. This is because the SelectedItems that are part of the view model collection
// will change as soon as we start removing and adding ControlObject
TD.ObservableItemCollection <ControlObjectModel> selectedItems = new TD.ObservableItemCollection <ControlObjectModel>();
foreach (ControlObjectModel item in SelectedItems)
{
selectedItems.Add(item);
}
foreach (ControlObjectModel item in selectedItems)
{
// find the original parent of the object that's moved
ControlObjectModel parentSourceItem = GetController(item.Parent_ID);
// If the parent is in the root level
if (parentSourceItem == null)
{
// Remove the item in the root level
ControlObjects.Remove(item);
}
else
{
// Otherwise remove the item from the child collection
parentSourceItem.ChildControlObjects.Remove(item);
}
TreeListViewDropPosition relativeDropPosition = (TreeListViewDropPosition)destination.GetValue(RadTreeListView.DropPositionProperty);
destination.UpdateLayout();
// If put on top of destination
if (relativeDropPosition == TreeListViewDropPosition.Inside)
{
// the Parent_ID of the item will become the ID of the destination
item.Parent_ID = destinationItem.ID;
destinationItem.ChildControlObjects.Add(item);
}
// If put before or after the destination
else
{
// if the desitination is in the root collection
if (destinationItem.Parent_ID == null)
{
// The parent_ID of the item will also be null
item.Parent_ID = null;
ControlObjects.Insert(ControlObjects.IndexOf(destinationItem), item);
}
else
{
// otherwise the Parent_ID of the item will be the same as that of the destination item
item.Parent_ID = destinationItem.Parent_ID;
// find the Parent of the destination item
parentSourceItem = GetController(destinationItem.Parent_ID);
// Insert the item before or after the destination item in the ChildObject collection of the parent of the destination
if (relativeDropPosition == TreeListViewDropPosition.Before)
{
parentSourceItem.ChildControlObjects.Insert(parentSourceItem.ChildControlObjects.IndexOf(destinationItem), item);
}
else
{
parentSourceItem.ChildControlObjects.Insert(parentSourceItem.ChildControlObjects.IndexOf(destinationItem) + 1, item);
}
}
}
}
}
catch (Exception ex)
{
RadWindow.Alert(new DialogParameters()
{
Header = "Error",
Content = "Error while moving object\n" + ex.Message
});
}
}
}