/// <summary>
/// Creates and shows a document that contains a single object view model for the existing entity.
/// Since CollectionViewModelBase is a POCO view model, an the instance of this class will also expose the EditCommand property that can be used as a binding source in views.
/// </summary>
/// <param name="projectionEntity">Entity to edit.</param>
public virtual void Edit(TProjection projectionEntity)
{
if (Repository.IsDetached(projectionEntity))
{
return;
}
TPrimaryKey primaryKey = Repository.GetProjectionPrimaryKey(projectionEntity);
int index = Entities.IndexOf(projectionEntity);
projectionEntity = ChangeTrackerWithKey.FindActualProjectionByKey(primaryKey);
if (index >= 0)
{
if (projectionEntity == null)
{
Entities.RemoveAt(index);
}
else
{
Entities[index] = projectionEntity;
}
}
if (projectionEntity == null)
{
DestroyDocument(GetDocumentManagerService().FindEntityDocument <TEntity, TPrimaryKey>(primaryKey));
return;
}
GetDocumentManagerService().ShowExistingEntityDocument <TEntity, TPrimaryKey>(this, primaryKey);
}
void OnSelectEntityMessage(SelectEntityMessage message)
{
if (!IsLoaded)
{
return;
}
var projectionEntity = ChangeTrackerWithKey.FindActualProjectionByKey(message.PrimaryKey);
if (projectionEntity == null)
{
FilterExpression = null;
projectionEntity = ChangeTrackerWithKey.FindActualProjectionByKey(message.PrimaryKey);
}
SelectedEntity = projectionEntity;
}
TProjection FindLocalProjectionWithSameKey(TProjection projectionEntity)
{
bool primaryKeyAvailable = projectionEntity != null && Repository.ProjectionHasPrimaryKey(projectionEntity);
return(primaryKeyAvailable ? ChangeTrackerWithKey.FindLocalProjectionByKey(Repository.GetProjectionPrimaryKey(projectionEntity)) : null);
}
