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C# ConsoleCancelEventHandler代理代码示例

本文整理汇总了C#中System.ConsoleCancelEventHandler代理的典型用法代码示例。如果您正苦于以下问题:C# ConsoleCancelEventHandler代理的具体用法?C# ConsoleCancelEventHandler怎么用?C# ConsoleCancelEventHandler使用的例子?那么恭喜您, 这里精选的代理代码示例或许可以为您提供帮助。


ConsoleCancelEventHandler代理属于System命名空间,在下文中一共展示了ConsoleCancelEventHandler代理的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: Main

//引入命名空间
using System;

class Sample 
{
    public static void Main()
    {
        ConsoleKeyInfo cki;

        Console.Clear();

        // Establish an event handler to process key press events.
        Console.CancelKeyPress += new ConsoleCancelEventHandler(myHandler);
        while (true)
        {
            Console.Write("Press any key, or 'X' to quit, or ");
            Console.WriteLine("CTRL+C to interrupt the read operation:");

            // Start a console read operation. Do not display the input.
            cki = Console.ReadKey(true);

            // Announce the name of the key that was pressed .
            Console.WriteLine($"  Key pressed: {cki.Key}\n");

            // Exit if the user pressed the 'X' key.
            if (cki.Key == ConsoleKey.X) break;
        }
    }

    protected static void myHandler(object sender, ConsoleCancelEventArgs args)
    {
        Console.WriteLine("\nThe read operation has been interrupted.");

        Console.WriteLine($"  Key pressed: {args.SpecialKey}");

        Console.WriteLine($"  Cancel property: {args.Cancel}");

        // Set the Cancel property to true to prevent the process from terminating.
        Console.WriteLine("Setting the Cancel property to true...");
        args.Cancel = true;

        // Announce the new value of the Cancel property.
        Console.WriteLine($"  Cancel property: {args.Cancel}");
        Console.WriteLine("The read operation will resume...\n");
    }
}
开发者ID:.NET开发者,项目名称:System,代码行数:46,代码来源:ConsoleCancelEventHandler

输出:

Press any key, or 'X' to quit, or CTRL+C to interrupt the read operation:
Key pressed: J

Press any key, or 'X' to quit, or CTRL+C to interrupt the read operation:
Key pressed: Enter

Press any key, or 'X' to quit, or CTRL+C to interrupt the read operation:

The read operation has been interrupted.
Key pressed: ControlC
Cancel property: False
Setting the Cancel property to true...
Cancel property: True
The read operation will resume...

Key pressed: Q

Press any key, or 'X' to quit, or CTRL+C to interrupt the read operation:
Key pressed: X


注:本文中的System.ConsoleCancelEventHandler代理示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。