本文整理汇总了C#中System.Linq.Expressions.ConditionalExpression类的典型用法代码示例。如果您正苦于以下问题:C# ConditionalExpression类的具体用法?C# ConditionalExpression怎么用?C# ConditionalExpression使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
ConditionalExpression类属于System.Linq.Expressions命名空间,在下文中一共展示了ConditionalExpression类的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,您的评价将有助于系统推荐出更棒的C#代码示例。
示例1:
// Add the following directive to your file:
// using System.Linq.Expressions;
int num = 100;
// This expression represents a conditional operation.
// It evaluates the test (first expression) and
// executes the iftrue block (second argument) if the test evaluates to true,
// or the iffalse block (third argument) if the test evaluates to false.
Expression conditionExpr = Expression.Condition(
Expression.Constant(num > 10),
Expression.Constant("num is greater than 10"),
Expression.Constant("num is smaller than 10")
);
// Print out 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<Func<string>>(conditionExpr).Compile()());
输出:
IIF("True", "num is greater than 10", "num is smaller than 10") num is greater than 10