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InvocationExpression Class
Visual Studio 2008
Represents an expression that applies a delegate or lambda expression to a list of argument expressions.
Assembly: System.Core (in System.Core.dll)
The following example creates an InvocationExpression that represents invoking a lambda expression with specified arguments.
Dim largeSumTest As System.Linq.Expressions.Expression(Of System.Func(Of Integer, Integer, Boolean)) = _ Function(num1, num2) (num1 + num2) > 1000 ' Create an InvocationExpression that represents applying ' the arguments '539' and '281' to the lambda expression 'largeSumTest'. Dim invocationExpression As System.Linq.Expressions.InvocationExpression = _ System.Linq.Expressions.Expression.Invoke( _ largeSumTest, _ System.Linq.Expressions.Expression.Constant(539), _ System.Linq.Expressions.Expression.Constant(281)) Console.WriteLine(invocationExpression.ToString()) ' This code produces the following output: ' ' Invoke((num1, num2) => ((num1 + num2) > 1000),539,281)
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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