ScriptX打印功能在IE8中不起作用
[英]ScriptX Print functionality is not working in IE8
问题描述
I have a requirement of printing documents and I am using ScriptX for this purpose. 
我需要打印文档，并且为此使用了ScriptX。 Everything works fine and prints the documents in IE11.But in IE8,I am getting an error,Error: The value of the property '$' is null or undefined, not a Function object. 一切正常，并且可以在IE11中打印文档。但是在IE8中，我收到一个错误消息，错误：属性“ $”的值为null或未定义，不是Function对象。
My printing code looks like this 我的打印代码如下所示
function PrintFunctionality(url, title,data)
{
if (!!navigator.userAgent.match(/Trident\/7\./)) {
//alert('ie browser');
var printWindow = window.open('', '', 'height=400,width=800');
var htmltext = '<html><head><title>' + title + '</title>';
htmltext += "<object id='factory' style='display:none' classid='clsid:1663ed61-23eb-11d2-b92f-008048fdd814' codebase='http://localhost/smsx.cab#Version=7,5,0,20'></object>";
htmltext += "<script src='http://localhost/jquery-1.8.2.min.js'></script>";
htmltext += "<script src='http://localhost/meadco-scriptx-1.0.2.js' type='text/javascript'></script>";
htmltext += "<script type='text/javascript'>";
htmltext += "$(function () {";
htmltext += "if (MeadCo.ScriptX.Init()) {MeadCo.ScriptX.PrintPage(false);}});</script>";
htmltext += '</head><body>';
htmltext += data;
htmltext += '</body></html>';
printWindow.document.write(htmltext);
printWindow.document.close();
printWindow.focus();
printWindow.print();
printWindow.close();
return false;
}
};
and the installed version of script x in my system is: 我系统中脚本x的安装版本是：
The installed version of ScriptX is: 7.5.0.20 ScriptX的安装版本为：7.5.0.20
The installed version of Security Manager is: 7.5.0.20 安全管理器的安装版本为：7.5.0.20
The installed version of Print component is: 7.5.0.20 打印组件的安装版本为：7.5.0.20
Any thing to change in the code to work for IE8 ? 有什么需要更改代码才能适用于IE8的东西吗？
1 个解决方案
解决方案1
0 2015-03-13 15:22:30
Background - there are a number of issues: 背景-存在许多问题：
- the printing functionality as shown will not run because IE 8 is Trident v4 如图所示的打印功能将无法运行，因为IE 8是Trident v4
- The code is assuming that the behaviour on document.close() is synchronous - it isn't. 该代码假定document.close（）上的行为是同步的-并非如此。 Neither the loading of script files nor the initialisation of ScriptX is synchronous. 脚本文件的加载和ScriptX的初始化都不是同步的。 when printWindow.close() is called the browser is possibly still downloading stuff and/or running startup code and kills the window before it has a chance to start the print. 当调用printWindow.close（）时，浏览器可能仍在下载内容和/或运行启动代码，并在有机会开始打印之前杀死窗口。 That is works with IE11 is because everything is in the cache and it is being used on a 'fast' machine. 之所以可以使用IE11，是因为所有内容都在缓存中，并且正在“快速”计算机上使用。
- jQuery does not initialise properly in this scenario (proof: remove all references to ScriptX and script leaving simply jQuery inclusion and $(function() {}}); -- it still errors even with jQuery 1.3 jQuery在这种情况下无法正确初始化（证明：删除对ScriptX和脚本的所有引用，仅保留jQuery包含和$（function（）{}}）；-即使使用jQuery 1.3，它仍然会出错
- The code is trying to print the document twice - via MeadCo.ScriptX.PrintPage() and printWindow.print(). 该代码尝试两次通过MeadCo.ScriptX.PrintPage（）和printWindow.print（）打印文档。
In this scenario, jQuery and meaco-scriptx-1.0.2 offer no real benefit. 在这种情况下，jQuery和meaco-scriptx-1.0.2并没有真正的好处。
This is a temporary window that should be able to assume that ScriptX is already installed. 这是一个临时窗口，应该能够假定已经安装了ScriptX。 The answer/change to make it work in any version of IE is to go old-school: 使它在任何版本的IE中都可以使用的答案/更改是过时的：
function PrintFunctionality(url, title, data) {
var printWindow = window.open('', '', 'height=400,width=800');
var htmltext = '<html><head><title>' + title + '</title>';
htmltext += "<object id='factory' style='display:none' classid='clsid:1663ed61-23eb-11d2-b92f-008048fdd814'></object>";
htmltext += "<" + "script type='text/javascript'>";
htmltext += "function printDocument() { window.setTimeout('window.close()',3000); factory.printing.print(false); }</" + "script>";
htmltext += "</head><body onload='printDocument()'>";
htmltext += data;
htmltext += '</body></html>';
printWindow.document.write(htmltext);
printWindow.document.close();
return false;
}
Note that the window closes itself and it does after a delay that is deemed long enough for the print to have completed (spooled). 请注意，该窗口会自行关闭，并且会在被认为足以使打印完成（假脱机）的延迟后关闭。 It is a quirk of this scenario that you must call window.setTimeout() before calling factory.printing.print() or the timeout may not fire. 在这种情况下，您必须在调用factory.printing.print（）之前先调用window.setTimeout（），否则可能不会触发超时。
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