Metro JavaScript try / catch失败 [英] Metro JavaScript try/catch fails

问题描述

在Metro JavaScript应用中遇到try / catch问题的其他人都失败了 - 即没有例外？ 第一个症状是，如果你包含标准的jQuery，应用程序就会爆炸，因为jQuery依赖于一个正常运行的try / catch。 在winRT API对象上调用不存在的函数时，也无法
捕获异常。 我很惊讶我没有看到任何投诉，因为这是任何认真工作的完整显示。

Anyone else having problems with try/catch in a Metro JavaScript app failing - i.e. catching no exceptions?  The first symptom is that the app blows up if you include standard jQuery, as jQuery depends on a functioning try/catch.  Also fails to catch an exception when calling a non-existent function on a winRT API object.  I'm surprised I haven't seen any complaints, as this is a complete show-stopper for any serious work.

Visual Studio标准JavaScript窗口Metro风格固定布局项目。

Visual Studio standard JavaScript windows Metro Style Fixed Layout project.

Microsoft Visual Studio 11

版本11.0.40825.2 PREREL

Microsoft .NET Framework

版本4.5.65530 PREREL

已安装版本：Ultimate

Microsoft Visual C＃11开发人员预览   01019-315-4422943-70030

Microsoft Visual Studio 11
Version 11.0.40825.2 PREREL
Microsoft .NET Framework
Version 4.5.65530 PREREL
Installed Version: Ultimate
Microsoft Visual C# 11 Developer Preview   01019-315-4422943-70030

推荐答案

嗨GlennW23，

Hi GlennW23,

您能否提供有关未被捕获的例外的更多详细信息？如果我在虚拟函数中的try / catch块中生成异常，它会按预期捕获。

Can you provide more details on the exceptions which aren't being caught? If I generate an exception in a try/catch block in a dummy function it gets caught as expected.

function button_click(e)
{
    try 
    {
        Debug.writeln("button_click");
        thisFunctionDoesNotExist();
     } 
    catch(ex)
    {
        Debug.writeln("caught exception: " + ex);
    }
}

很多人都在使用
jQuery在Metro风格的应用程序中成功，因此您的特定情况可能会出现异常。

- Rob

Many people are using jQuery successfully in Metro style apps so there is likely something unusual about your specific scenario.

--Rob

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