public static bool DiffTwoList <TEntity>(EntityList <TEntity> before, EntityList <TEntity> after, out BindingCollection <TEntity> add, out BindingCollection <TEntity> upd, out BindingCollection <TEntity> del) where TEntity : EntityBase <TEntity>
{
add = new BindingCollection <TEntity>();
upd = new BindingCollection <TEntity>();
del = new BindingCollection <TEntity>();
if ((before == null) && (after != null))
{
add = after.Entities;
}
else if ((before != null) && (after == null))
{
del = before.Entities;
}
else if ((before != null) && (after != null))
{
del = new BindingCollection <TEntity>(before.Entities.Except(after.Entities, new EntityIdComparer <TEntity>()).ToList <TEntity>());
foreach (TEntity entity in after.Entities.Except(before.Entities, new EntityFullComparer <TEntity>()))
{
if (entity.IsNewEntity)
{
add.Add(entity);
}
else
{
upd.Add(entity);
}
}
}
return(add.Count == 0 && upd.Count == 0 && del.Count == 0);
}
public void Fill(BindingCollection <T> newList)
{
if (newList == null)
{
_Entitys = new BindingCollection <T>();
}
else
{
_Entitys = newList;
}
if (_Entitys.Count == 0 || _Entitys.IndexOf(Current) == -1)
{
Current = null;
}
else
{
Current = Current;
}
if (_BindingSource != null)
{
_BindingSource.DataSource = Entities;
int pos = _Entitys.IndexOf(Current);
_BindingSource.Position = pos;
}
}
public BindingCollection(BindingCollection <T> list)
: base(list)
{
IBindingList asBindingList = list as IBindingList;
if (asBindingList != null)
{
asBindingList.ListChanged += SourceListChanged;
}
}
public EntityList(List <T> list)
{
if (list == null)
{
_Entitys = new BindingCollection <T>();
}
else
{
_Entitys = new BindingCollection <T>(list);
}
if (_Entitys.Count > 0)
{
Current = _Entitys[0];
}
}
public static BindingCollection <TEntity> DiffTwoListAndGetDel <TEntity>(EntityList <TEntity> before, EntityList <TEntity> after) where TEntity : EntityBase <TEntity>
{
BindingCollection <TEntity> result = new BindingCollection <TEntity>();
if ((before != null) && (after == null))
{
result = before.Entities;
}
else if ((before != null) && (after != null))
{
result = new BindingCollection <TEntity>(before.Entities.Except(after.Entities, new EntityIdComparer <TEntity>()).ToList <TEntity>());
}
return(result);
}
public static BindingCollection <TEntity> DiffTwoListAndGetUpd <TEntity>(EntityList <TEntity> before, EntityList <TEntity> after) where TEntity : EntityBase <TEntity>
{
BindingCollection <TEntity> result = new BindingCollection <TEntity>();
if ((before != null) && (after != null))
{
foreach (TEntity entity in after.Entities.Except(before.Entities, new EntityFullComparer <TEntity>()))
{
if (!entity.IsNewEntity)
{
result.Add(entity);
}
}
}
return(result);
}
public EntityList <T> Clone()
{
BindingCollection <T> bindingListView = new BindingCollection <T>();
if (_Entitys != null)
{
foreach (T entity in _Entitys)
{
bindingListView.Add(entity.Clone());
}
}
EntityList <T> entityList = new EntityList <T>(bindingListView);
if (Current != null)
{
entityList.Current = Current.Clone();
}
entityList.Caption = Caption;
return(entityList);
}
public EntityList()
{
_Entitys = new BindingCollection <T>();
}
