将SQL转换为Linq,其中有in子句
我想知道如何在VB中将下面列出的SQL查询转换为LINQ查询将SQL转换为Linq,其中有in子句,sql,vb.net,linq,linq-to-sql,sql-to-linq-conversion,Sql,Vb.net,Linq,Linq To Sql,Sql To Linq Conversion,我想知道如何在VB中将下面列出的SQL查询转换为LINQ查询 SELECT FacilityID FROM tblFacilityProjects WHERE FreedomEnabled = True and ProjectID in (840,841,842) 在SQL查询中 SELECT [Id], [UserId] FROM [Tablename] WHERE [UserId] IN (2, 3) 在LINQ中的查询中 利用VB的包含功能 Dim coll As Integer(
SELECT FacilityID
FROM tblFacilityProjects
WHERE FreedomEnabled = True and ProjectID in (840,841,842)
在SQL查询中
SELECT [Id], [UserId]
FROM [Tablename]
WHERE [UserId] IN (2, 3)
在LINQ中的查询中
利用VB的包含
功能
Dim coll As Integer() = {2, 3}
Dim user = From u In tablename Where coll.Contains(u.UserId.Value) New
From {
u.id, u.userid
}
像这样的东西应该可以做到,我想:
Dim projectIds = New Integer() {840, 841, 842}
Dim result = From proj In db.tblFacilityProjects _
Where proj.FreedomEnabled = True AndAlso _
projectIds.Contains(proj.ProjectID) _
Select FacilityID
创建项目ID的列表
Dim list As New List(Of Integer)
list.Add(840)
list.Add(841)
list.Add(842)
现在你必须在LINQ中使用它
dim facilityId = from fp in tblFacilityProjects
where FreedomEnabled == true
where list.Contains(ProjectID)
select new
{
FacilityID=fp.FacilityID
}
对于VB.net,您可能需要做一些调整 正是我想要的。非常感谢。比两个选择更长路线的示例要好,谢谢!