本文整理汇总了VB.NET中System.Linq.Expressions.Expression.Condition方法的典型用法代码示例。如果您正苦于以下问题:VB.NET Expression.Condition方法的具体用法?VB.NET Expression.Condition怎么用?VB.NET Expression.Condition使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Linq.Expressions.Expression 的用法示例。
在下文中一共展示了Expression.Condition方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的VB.NET代码示例。
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()())
开发者ID:VB.NET开发者,项目名称:System.Linq.Expressions,代码行数:22,代码来源:Expression.Condition 输出:
IIF("True", "num is greater than 10", "num is smaller than 10")
num is greater than 10
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