本文整理匯總了VB.NET中System.Linq.Expressions.Expression.Condition方法的典型用法代碼示例。如果您正苦於以下問題：VB.NET Expression.Condition方法的具體用法？VB.NET Expression.Condition怎麽用？VB.NET Expression.Condition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.Linq.Expressions.Expression的用法示例。
在下文中一共展示了Expression.Condition方法的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: test
' Add the following directive to your file:
' Imports System.Linq.Expressions
Dim num As Integer = 100
' This expression represents a conditional operation;
' it will evaluate the test (first expression) and
' execute the ifTrue block (second argument) if the test evaluates to true,
' or the ifFalse block (third argument) if the test evaluates to false.
Dim conditionExpr As Expression = Expression.Condition(
Expression.Constant(num > 10),
Expression.Constant("n is greater than 10"),
Expression.Constant("n is smaller than 10")
)
' Print the expression.
Console.WriteLine(conditionExpr.ToString())
' The following statement first creates an expression tree,
' then compiles it, and then executes it.
Console.WriteLine(
Expression.Lambda(Of Func(Of String))(conditionExpr).Compile()())輸出：
IIF("True", "num is greater than 10", "num is smaller than 10")
num is greater than 10