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C# ManagementOperationObserver.Completed事件代码示例

本文整理汇总了C#中System.Management.ManagementOperationObserver.Completed事件的典型用法代码示例。如果您正苦于以下问题:C# ManagementOperationObserver.Completed事件的具体用法?C# ManagementOperationObserver.Completed怎么用?C# ManagementOperationObserver.Completed使用的例子?那么, 这里精选的事件代码示例或许可以为您提供帮助。您也可以进一步了解该事件所在System.Management.ManagementOperationObserver的用法示例。


在下文中一共展示了ManagementOperationObserver.Completed事件的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: EnumerateInstancesAsync

//引入命名空间
using System;
using System.Management;

// This example demonstrates how
// to perform an asynchronous instance enumeration.

public class EnumerateInstancesAsync 
{
    public EnumerateInstancesAsync()
    {
        // Enumerate asynchronously using Object Searcher
        // ===============================================

        // Instantiate an object searcher with the query
        ManagementObjectSearcher searcher = 
            new ManagementObjectSearcher(new
            SelectQuery("Win32_Service")); 

        // Create a results watcher object,
        // and handler for results and completion
        ManagementOperationObserver results = new
            ManagementOperationObserver();
        
        // Attach handler to events for results and completion
        results.ObjectReady += new 
            ObjectReadyEventHandler(this.NewObject);
        results.Completed += new 
            CompletedEventHandler(this.Done);

        // Call the asynchronous overload of Get()
        // to start the enumeration
        searcher.Get(results);
          
        // Do something else while results
        // arrive asynchronously
        while (!this.Completed)
        {
            System.Threading.Thread.Sleep (1000);
        }
 
        this.Reset();
    }

    private bool isCompleted = false;

    private void NewObject(object sender,
        ObjectReadyEventArgs obj) 
    {
        Console.WriteLine("Service : {0}, State = {1}", 
            obj.NewObject["Name"],
            obj.NewObject["State"]);
    }

    private bool Completed 
    {
        get
        { 
            return isCompleted;
        }
    }
    
    private void Reset()   
    {
        isCompleted = false;
    }

    private void Done(object sender,
        CompletedEventArgs obj) 
    {
        isCompleted = true;
    }

    public static void Main()
    {
        EnumerateInstancesAsync example =
            new EnumerateInstancesAsync();

        return;
    }
}
开发者ID:.NET开发者,项目名称:System.Management,代码行数:81,代码来源:ManagementOperationObserver.Completed


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