本文整理匯總了VB.NET中System.Linq.Expressions.Expression<TDelegate>類的典型用法代碼示例。如果您正苦於以下問題：VB.NET Expression<TDelegate>類的具體用法？VB.NET Expression<TDelegate>怎麽用？VB.NET Expression<TDelegate>使用的例子？那麽, 這裏精選的類代碼示例或許可以為您提供幫助。
在下文中一共展示了Expression<TDelegate>類的1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: Func
' Lambda expression as executable code.
Dim deleg As Func(Of Integer, Boolean) = Function(ByVal i) i < 5
' Invoke the delegate and display the output.
MsgBox(String.Format("deleg(4) = {0}", deleg(4)))
' Lambda expression as data in the form of an expression tree.
Dim expr As System.Linq.Expressions.Expression(Of Func(Of Integer, Boolean)) = Function(ByVal i) i < 5
' Compile the expression tree into executable code.
Dim deleg2 As Func(Of Integer, Boolean) = expr.Compile()
' Invoke the method and print the output.
MsgBox(String.Format("deleg2(4) = {0}", deleg2(4)))輸出：
deleg(4) = True deleg2(4) = True