///--------------------------------------------------------------------------------
/// <summary>This method adds a relationship to the view model.</summary>
///
/// <param name="relationship">The relationship to add.</param>
///--------------------------------------------------------------------------------
public void DeleteRelationship(DiagramRelationshipViewModel relationship)
{
// remove diagram relationship from solution diagram
RemoveRelationship(relationship);
// add to deleted relationship list
ItemsToDelete.Add(relationship);
Refresh(false);
}
///--------------------------------------------------------------------------------
/// <summary>This method deletes an entity from the view model and solution.</summary>
///
/// <param name="entity">The entity to remove.</param>
///--------------------------------------------------------------------------------
public void DeleteEntity(DiagramEntityViewModel entity)
{
// remove diagram entity
RemoveEntity(entity, true);
// add to deleted entity list
ItemsToDelete.Add(entity);
Refresh(false);
}
public AddsEditsDeletesSet(
List <TItem> oldItems,
List <TItem> newItems,
Func <TItem, object> keySelector,
Func <TItem, TItem, bool> itemsAreEqualComparer,
Func <TItem, bool> itemCannotBeDeletedSelector = null)
{
OldItems = oldItems;
NewItems = newItems;
foreach (TItem newItem in newItems)
{
object newItemKey = keySelector(newItem);
TItem matchingOldItem = oldItems.FirstOrDefault(oldItem => keySelector(oldItem).Equals(newItemKey));
if (matchingOldItem == null)
{
// No matching old item - this is a new item
ItemsToAdd.Add(newItem);
}
else
{
// Found a matching old item
if (itemsAreEqualComparer(newItem, matchingOldItem))
{
// Items match - the item has not been changed
ItemsWithNoChanges.Add(new OldAndNew <TItem> {
Old = matchingOldItem, New = newItem
});
}
else
{
// Items don't match - there are changes
ItemsToChange.Add(new OldAndNew <TItem> {
Old = matchingOldItem, New = newItem
});
}
}
}
foreach (TItem oldItem in oldItems)
{
object oldItemKey = keySelector(oldItem);
TItem matchingNewItem = newItems.FirstOrDefault(newItem => keySelector(newItem).Equals(oldItemKey));
if (matchingNewItem == null)
{
// No matching new item - this item has been deleted
ItemsToDelete.Add(oldItem);
}
}
if (itemCannotBeDeletedSelector != null)
{
ItemsThatCannotBeDeleted = ItemsToDelete.Where(itemCannotBeDeletedSelector).ToList();
}
}
///--------------------------------------------------------------------------------
/// <summary>This method puts an item into the delete queue.</summary>
///
/// <param name="item">The item to delete.</param>
///--------------------------------------------------------------------------------
public virtual void Delete(WorkspaceViewModel item)
{
ItemsToDelete.Add(item);
Items.Remove(item);
}
///--------------------------------------------------------------------------------
/// <summary>This method adds to PropertyInstance deletes.</summary>
///--------------------------------------------------------------------------------
public void AddToDeletedPropertyInstances(PropertyInstanceViewModel item)
{
ItemsToDelete.Add(item);
Items.Remove(item);
}
///--------------------------------------------------------------------------------
/// <summary>This method adds to Entity deletes.</summary>
///--------------------------------------------------------------------------------
public void AddToDeletedEntities(EntityViewModel item)
{
ItemsToDelete.Add(item);
Items.Remove(item);
}