本文整理匯總了VB.NET中System.Linq.Expressions.Expression.IfThenElse方法的典型用法代碼示例。如果您正苦於以下問題：VB.NET Expression.IfThenElse方法的具體用法？VB.NET Expression.IfThenElse怎麽用？VB.NET Expression.IfThenElse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.IfThenElse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: GetType
' Add the following directive to the file:
' Imports System.Linq.Expressions
Dim test As Boolean = True
' This expression represents the conditional block.
Dim ifThenElseExpr As Expression = Expression.IfThenElse(
Expression.Constant(test),
Expression.Call(
Nothing,
GetType(Console).GetMethod("WriteLine", New Type() {GetType(String)}),
Expression.Constant("The condition is true.")
),
Expression.Call(
Nothing,
GetType(Console).GetMethod("WriteLine", New Type() {GetType(String)}),
Expression.Constant("The condition is false.")
)
)
' The following statement first creates an expression tree,
' then compiles it, and then runs it.
Expression.Lambda(Of Action)(ifThenElseExpr).Compile()()輸出：
The condition is true.