easyUI MVC3一些注意的东东(2)

一、验证输入是小数的方法：

  例子：

<input id="Residualvalue" value="@Model.Residualvalue" class="easyui-numberbox" data-options="precision:2,required:true" />

二、多个表的leftjoin

例子：

 var q = from e in db.FA_Assert
                    join t in db.FA_AssertType on e.TypeID equals t.Id
                    join d in db.Sys_Department on e.BelongDepartmentID equals d.ID into td
                    from d in td.DefaultIfEmpty()
                    join u in db.Sys_User on e.KeeperID equals u.ID into tu from u in tu.DefaultIfEmpty()
                    join i in db.FA_DicItem on e.GetMethodID equals i.ID into ti from i in ti.DefaultIfEmpty()
                    join p in db.FA_DicItem on e.DepreciationMethodID equals p.ID into tp from p in tp.DefaultIfEmpty()
                    where e.TypeID ==id
                    orderby e.ID
                    select new
                    {
                        ID = e.ID,
                        AssocateID = e.AssocateID,
                        TypeName = t.Name ,
                        AssertName = e.AssertName,
                        GetMethodID = i.Dic_ItemName ,
                        OriginalValue = e.OriginalValue,
                        Count = e.Count,
                        GetDate = e.GetDate,
                        UsefulLife = e.UsefulLife,
                        DepreciationMethodID = e.DepreciationMethodID  ,
                        Residualvalue = e.Residualvalue,
                        BelongDepartmentID = d.DeptName ,
                        KeeperID = u.NickName ,
                        PicID = e.PicID,
                        BarCode = e.BarCode
                    };