同步执行异步功能

Question

同步执行异步功能

Dev*_*Dev -2 c# asynchronous winforms async-await .net-4.5

我已经对这个主题进行了大量的搜索,我在这个网站上阅读了关于这个主题的大部分帖子,但是我仍然感到困惑,我需要一个直接的答案.这是我的情况:

我有一个已建立的Winform应用程序,我无法将其全部"异步".我现在被迫使用一个全部写为异步函数的外部库.

在我的申请中,我有

/// <summary>
/// This function I can't change it to an 'async'
/// </summary>
public void MySyncFunction()
{
    //This function is my point in my application where I have to call the
    //other 'async' functions but I can't change the function itself to 'async'

    try
    {
        //I need to call the MyAsyncDriverFunction() as if it is a synchronous function
        //I need the driver function to finish execution and return before processing the code that follows it
        //I also need to be able to catch any exceptions
        MyAsyncDriverFunction(); 

        //Rest of the code have to wait for the above function to return
    }
    catch (Exception exp)
    {
        //Need to be able to handle the exception thrown 
        //from the MyAsyncDriverFunction here.  
    }
}

public static async Task<IEnumerable<string>> MyAsyncDriverFunction()
{
    try
    {
        var strCollection = await AsyncExternalLibraryFunction1();
        var strCollection2 = await AsyncExternalLibraryFunction2();

        return strCollection;
    }
    catch (Exception exp)
    {
        //Need to be able to catch an exception and re-throw it to the caller function
    }
}

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如代码中所述,我需要能够: