本文整理汇总了C#中System.Linq.Expressions.TryExpression类的典型用法代码示例。如果您正苦于以下问题:C# TryExpression类的具体用法?C# TryExpression怎么用?C# TryExpression使用的例子?那么, 这里精选的类代码示例或许可以为您提供帮助。
TryExpression类属于System.Linq.Expressions命名空间,在下文中一共展示了TryExpression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: DivideByZeroException
// Add the following directive to the file:
// using System.Linq.Expressions;
// A TryExpression object that has a Catch statement.
// The return types of the Try block and all Catch blocks must be the same.
TryExpression tryCatchExpr =
Expression.TryCatch(
Expression.Block(
Expression.Throw(Expression.Constant(new DivideByZeroException())),
Expression.Constant("Try block")
),
Expression.Catch(
typeof(DivideByZeroException),
Expression.Constant("Catch block")
)
);
// The following statement first creates an expression tree,
// then compiles it, and then runs it.
// If the exception is caught,
// the result of the TryExpression is the last statement
// of the corresponding Catch statement.
Console.WriteLine(Expression.Lambda<Func<string>>(tryCatchExpr).Compile()());
输出:
Catch block