/// <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<ObjectModel> selectedItems, ObjectModel destination )
{
if (destination != null)
{
ObjectModel destinationItem = (destination.DataContext) as ObjectModel;
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 objects
TD.ObservableItemCollection <ObjectModel> selectedItems = new TD.ObservableItemCollection <ObjectModel>();
foreach (ObjectModel item in SelectedItems)
{
selectedItems.Add(item);
}
foreach (ObjectModel item in selectedItems)
{
// find the original parent of the object that's moved
ObjectModel parentSourceItem = GetObject(item.Parent_ID);
// If the parent is in the root level
if (parentSourceItem == null)
{
// Remove the item in the root level
Objects.Remove(item);
}
else
{
// Otherwise remove the item from the child collection
parentSourceItem.ChildObjects.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.ChildObjects.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;
Objects.Insert(Objects.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 = GetObject(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.ChildObjects.Insert(parentSourceItem.ChildObjects.IndexOf(destinationItem), item);
}
else
{
parentSourceItem.ChildObjects.Insert(parentSourceItem.ChildObjects.IndexOf(destinationItem) + 1, item);
}
}
}
}
}
catch (Exception ex)
{
RadWindow.Alert(new DialogParameters()
{
Header = "Error",
Content = "Error while moving object\n" + ex.Message
});
}
}
}
/// <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<PropertyModel> selectedItems, PropertyModel destination )
{
if (destination != null)
{
PropertyModel destinationItem = (destination.DataContext) as PropertyModel;
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 objects
TD.ObservableItemCollection <PropertyModel> selectedItems = new TD.ObservableItemCollection <PropertyModel>();
foreach (PropertyModel item in SelectedItems)
{
selectedItems.Add(item);
}
foreach (PropertyModel item in selectedItems)
{
// find the original parent of the object that's moved
PropertyModel parentSourceItem = GetProperty(item.Parent_ID);
// If the parent is in the root level
if (parentSourceItem == null)
{
// Remove the item in the root level
Properties.Remove(item);
}
else
{
// Otherwise remove the item from the child collection
parentSourceItem.ChildProperties.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.ChildProperties.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;
Properties.Insert(Properties.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 = GetProperty(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.ChildProperties.Insert(parentSourceItem.ChildProperties.IndexOf(destinationItem), item);
}
else
{
parentSourceItem.ChildProperties.Insert(parentSourceItem.ChildProperties.IndexOf(destinationItem) + 1, item);
}
}
}
}
}
catch (Exception ex)
{
RadWindow.Alert(ex.Message);
}
}
//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 objects
// TD.ObservableItemCollection<PropertyModel> selectedItems = new TD.ObservableItemCollection<PropertyModel>();
// foreach (PropertyModel item in SelectedItems)
// {
// selectedItems.Add(item);
// }
// foreach (PropertyModel item in selectedItems)
// {
// // find the original parent of the object that's moved
// PropertyModel parentSourceItem = GetProperty(item.Parent_ID);
// // If the parent is in the root level
// if (parentSourceItem == null)
// // Remove the item in the root level
// Properties.Remove(item);
// else
// // Otherwise remove the item from the child collection
// parentSourceItem.ChildProperties.Remove(item);
// if (destination != null)
// {
// TreeListViewDropPosition relativeDropPosition = (TreeListViewDropPosition)destination.GetValue(RadTreeListView.DropPositionProperty);
// PropertyModel destinationItem = (destination.DataContext) as PropertyModel;
// // 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.ChildProperties.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;
// Properties.Insert(Properties.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 = GetProperty(destinationItem.Parent_ID);
// // Insert the item above the destination item in the ChildObject collection of the parent of the destination
// if (relativeDropPosition == TreeListViewDropPosition.Before)
// parentSourceItem.ChildProperties.Insert(parentSourceItem.ChildProperties.IndexOf(destinationItem), item);
// else
// parentSourceItem.ChildProperties.Insert(parentSourceItem.ChildProperties.IndexOf(destinationItem) + 1, item);
// }
// }
// }
// else // destination is null, i.e. below the tree
// {
// item.Parent_ID = null;
// Properties.Add(item);
// }
// }
//}
//catch (Exception ex)
//{
// RadWindow.Alert(ex.Message);
//}
}