2
在我的WinForm应用程序我用下面的代码来查找用户:LINQ到实体返回所有行
var findUser =
userService.Find(
u => u.UserName == UserNameTextBox.Text.Trim() && u.Password == PasswordTextBox.Text.Trim() && u.IsActive);
并找到实现为我服务层的通用方法方法:
public virtual TEntity Find(Func<TEntity, bool> predicate)
{
return _tEntities.Where(predicate).FirstOrDefault();
}
当我执行了下面的sql代码生成并发送到sql server:
SELECT
[Extent1].[Id] AS [Id],
[Extent1].[FirstName] AS [FirstName],
[Extent1].[LastName] AS [LastName],
[Extent1].[UserName] AS [UserName],
[Extent1].[Password] AS [Password],
[Extent1].[IsAdmin] AS [IsAdmin],
[Extent1].[IsActive] AS [IsActive],
[Extent1].[RowVersion] AS [RowVersion]
FROM [dbo].[Users] AS [Extent1]
什么问题,我怎么能fi x主题?
你find方法应被宣布为'公共虚拟TEntity查找(表达式>谓词)' –
nemesv
2013-02-17 16:33:42
@nemesv:这属于下面的答案部分。 – Slauma 2013-02-17 16:40:27