[英]Javascript errors are hidden in ASP.NET application
I have an ASP.NET(4.5)
webform application which uses JavaScript
. 我有一个使用
JavaScript
的ASP.NET(4.5)
Webform应用程序。 And I am using IE11
. 我正在使用
IE11
。 The problem is if there is any error in this javascript(external file) nothing happens. 问题是,如果此javascript(外部文件)中没有任何错误,则什么也不会发生。
For example if I rename my file from a.js to b.js application continues running and nothing is showing in the IE. 例如,如果我将文件从a.js重命名为b.js,则应用程序将继续运行,而IE中则没有任何显示。
Or In my code I had: 或者在我的代码中,我有:
<asp:LinkButton runat="server" OnClientClick="OpenWindow('.//Documents//TechnicalSupport.pdf');" ..... >
And OpenWindow was not defined in the Javascript file so the link button was not working. 而且在Javascript文件中未定义OpenWindow,因此链接按钮不起作用。 From user perspective a click on the link did not do anything, no error messages or anything else.
从用户的角度来看,单击链接不会执行任何操作,也不会显示错误消息或其他任何内容。
The only way I can see it to press F12
and see what happened(OpenWindow is not defined). 我看到它的唯一方法是按
F12
键并查看发生了什么(未定义OpenWindow)。
Question : Is there any way to show the java script errors in the ASP.NET
app? 问题:有什么方法可以显示
ASP.NET
应用程序中的Java脚本错误? In above case I want to at least be able to log error " OpenWindow is not defined
" 在上述情况下,我至少希望能够记录错误“
OpenWindow is not defined
”
In response to your question 回答您的问题
Is there any way to show the java script errors in the ASP.NET app?
有什么方法可以显示ASP.NET应用程序中的Java脚本错误?
Yes, there is a way : 是的, 有一种方法 :
window.onerror = function(msg, url, linenumber) {
//To show the error in the app
alert('Error message: '+msg+'\nURL: '+url+'\nLine Number: '+linenumber);
//To show the error in the Javascript console (Press F12)
console.log('Error message: '+msg+'\nURL: '+url+'\nLine Number: '+linenumber);
return true;
}
You can't access a file directly in JS, but you could access by WebService or check this answer about PageMethods to Log the error in a file, just change the code in the static method 您不能直接在JS中访问文件,但可以通过WebService访问或检查有关PageMethods的答案以将错误记录在文件中,只需在静态方法中更改代码即可
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