我的 LINQ 查询如下
Dim Query = From t In New XPQuery(Of xUser)(Xpo.Session.DefaultSession)
.Where("Name=John").Select("new (Name as FirstName)")
不幸的是我得到了错误No property or field 'John' exists in type 'xUser'
当然,我的 xUser 类中不存在这样的属性,但是我可以修复它吗?
在 DynamicLinq 类中阅读后,我发现了这个函数
Function FindPropertyOrField(ByVal type As Type, ByVal memberName As String, ByVal staticAccess As Boolean) As MemberInfo
Dim flags As BindingFlags = BindingFlags.Public Or BindingFlags.DeclaredOnly Or _
If(staticAccess, BindingFlags.Static, BindingFlags.Instance)
For Each t As Type In SelfAndBaseTypes(Type)
Dim members As MemberInfo() = t.FindMembers(MemberTypes.Property Or MemberTypes.Field, _
flags, type.FilterNameIgnoreCase, memberName)
If members.Length <> 0 Then Return members(0)
Next
Return Nothing
End Function
如何编辑我的“错误”查询?我在这里做错了什么?
谢谢你的时间。