本文整理匯總了VB.NET中System.Data.Objects.CompiledQuery.Compile方法的典型用法代碼示例。如果您正苦於以下問題：VB.NET CompiledQuery.Compile方法的具體用法？VB.NET CompiledQuery.Compile怎麽用？VB.NET CompiledQuery.Compile使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類System.Data.Objects.CompiledQuery的用法示例。
在下文中一共展示了CompiledQuery.Compile方法的3個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的VB.NET代碼示例。
示例1: CompiledQuery5
ReadOnly s_compQuery5 = _
CompiledQuery.Compile(Of AdventureWorksEntities, DateTime, Decimal, IQueryable(Of SalesOrderHeader))( _
Function(ctx, orderDate, totalDue) From product In ctx.SalesOrderHeaders _
Where product.OrderDate > orderDate _
And product.TotalDue < totalDue _
Order By product.OrderDate _
Select product)
Sub CompiledQuery5()
Using context As New AdventureWorksEntities()
Dim orderedAfterDate As DateTime = New DateTime(2003, 3, 8)
Dim amountDue As Decimal = 300.0
Dim orders As IQueryable(Of SalesOrderHeader) = _
s_compQuery5.Invoke(context, orderedAfterDate, amountDue)
For Each order In orders
Console.WriteLine("ID: {0} Order date: {1} Total due: {2}", _
order.SalesOrderID, order.OrderDate, order.TotalDue)
Next
End Using
End Sub示例2: CompiledQuery2
ReadOnly s_compQuery2 As Func(Of AdventureWorksEntities, Decimal, IQueryable(Of SalesOrderHeader)) = _
CompiledQuery.Compile(Of AdventureWorksEntities, Decimal, IQueryable(Of SalesOrderHeader))( _
Function(ctx As AdventureWorksEntities, total As Decimal) _
From order In ctx.SalesOrderHeaders _
Where (order.TotalDue >= total) _
Select order)
Sub CompiledQuery2()
Using context As New AdventureWorksEntities()
Dim totalDue As Decimal = 200.0
Dim orders As IQueryable(Of SalesOrderHeader) = s_compQuery2.Invoke(context, totalDue)
For Each order In orders
Console.WriteLine("ID: {0} Order date: {1} Total due: {2}", _
order.SalesOrderID, _
order.OrderDate, _
order.TotalDue)
Next
End Using
End Sub示例3: CompiledQuery1_MQ
ReadOnly s_compQuery1 As Func(Of AdventureWorksEntities, ObjectQuery(Of SalesOrderHeader)) = _
CompiledQuery.Compile(Of AdventureWorksEntities, ObjectQuery(Of SalesOrderHeader))( _
Function(ctx) ctx.SalesOrderHeaders)
Sub CompiledQuery1_MQ()
Using context As New AdventureWorksEntities()
Dim orders As ObjectQuery(Of SalesOrderHeader) = s_compQuery1.Invoke(context)
For Each order In orders
Console.WriteLine(order.SalesOrderID)
Next
End Using
End Sub