/// <summary>
///
/// </summary>
/// <param name="e"></param>
protected virtual void OnEntityChanged(EntityChangedEventArgs e)
{
IBaseDao dao = this.Dao;
if (dao == null)
{
throw new ArgumentException("dao is null!");
}
try
{
switch (e.EntityChangedType)
{
case EntityChangedType.Add:
dao.Save(e.Entity);
break;
case EntityChangedType.Edit:
dao.Update(e.Entity);
break;
case EntityChangedType.Delete:
dao.Delete(e.Entity);
break;
default:
throw new NotSupportedException("invalid e.EntityChangedType");
}
e.Exception = null;
}
catch (Exception ex)
{
e.Exception = ex;
ExceptionProcess.ProcessWithNotify(ex);
//if (this.ArchiveGridHelper.m_bThrowExceptionWhenBllError)
//{
// throw;
//}
//else
//{
// ExceptionProcess.ProcessWithNotify(ex);
// //base.SearchManager.ReloadData();
//}
}
}
/// <summary>
/// 处理位于Position位置的Entity改变后的事情（保存，更新界面）
/// </summary>
/// <returns></returns>
public virtual bool ProcessEntityChanged(int position)
{
object entity = this.DisplayManager.Items[position];
if (entity == null)
{
throw new ArgumentException("Position is invalid!");
}
EntityChangedEventArgs arg;
ListChangedEventArgs arg2;
switch (this.State)
{
case StateType.Add:
arg = new EntityChangedEventArgs(EntityChangedType.Add, entity);
arg2 = new ListChangedEventArgs(ListChangedType.ItemAdded, position);
break;
case StateType.Delete:
arg = new EntityChangedEventArgs(EntityChangedType.Delete, entity);
arg2 = new ListChangedEventArgs(ListChangedType.ItemDeleted, position);
break;
case StateType.Edit:
arg = new EntityChangedEventArgs(EntityChangedType.Edit, entity);
arg2 = new ListChangedEventArgs(ListChangedType.ItemChanged, position);
break;
default:
throw new InvalidOperationException("Invalid State");
}
OnEntityChanged(arg);
if (arg.Exception == null)
{
OnListChanged(arg2);
return true;
}
else
{
if (arg.Exception is InvalidUserOperationException)
{
// 只是提示，不刷新。而且在Dao中，不清空内部Dao数据（Clear）。
}
else
{
DoOnFailedOperation();
}
return false;
}
}