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Livecycle 形式的动态超链接

发布于 2024-07-29 00:56:13 字数 325 浏览 3 评论 0原文

我试图弄清楚如何在 Livecycle 表单中创建一个超链接，该链接指向一个 URL，该 URL 将在表单呈现的不同日期发生变化。例如，有一天我可能希望超链接指向：

mywebsite/mypage?option=XXX

，另一天我希望它指向：

mywebsite/mypage?option=YYY< /strong>

XXX 和 YYY 可以很容易地以 XML 形式传递到表单的数据中，但我只是不知道如何制作它以便更改超链接以与此相对应。

有什么建议么？

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不念旧人 2024-08-05 00:56:13

这可以通过 LiveCycle Designer 中的 JavaScript 来完成。放置在表单的 docReady 事件上的以下脚本将允许您动态更改文本对象的 URL。

 form1::docReady - (JavaScript, client)
// If this code is running on the server, you don't want it to run any code 
// that might force a relayout, or you could get stuck in an infinite loop
if (xfa.host.name != "XFAPresentationAgent") {

    // You would load the URL that you want into this variable, based on 
    // whatever XML data is being passed into your form
    var sURL = "www.stackoverflow.com"; // mywebsite/mypage?option=xxx

    // URLs are encoded in XHTML.  In order to change the URL, you need 
    // to create the right XHTML string and push it into the Text object's 
    // <value> node. This is a super simple XHTML shell for this purpose.  
    // You could add all sorts of markup to make your hyperlink look pretty
    var sRichText = "<body><p><a href=\"" + sURL + "\">Foo</a></p></body>";

    // Assuming you have a text object called "Text1" on the form, this 
    // call will push the rich text into the node.  Note that this call        
    // will force a re-layout of the form
    this.resolveNode("Text1").value.exData.loadXML(sRichText, false, true);
}

有一些注意事项： Acrobat 中的 URL 仅在 Acrobat 9.0 及更高版本中受支持。因此，如果有人使用旧版本的 Acrobat 打开您的表单，则 URL 将不起作用。

另外，正如您从“if (xfa.host.name !=...)”行中看到的那样，如果在服务器上生成表单，则此代码将无法正常运行，因为会强制重新布局docReady 期间的表单可能会导致某些旧版本的 LiveCycle 服务器出现问题。如果您确实需要在服务器上运行此脚本，您可能应该选择一个不同的事件，然后选择 form::docReady。

This can be accomplished with JavaScript in LiveCycle Designer. The following script, placed on the Form's docReady event will let you dynamically change the URL of a text object.

 form1::docReady - (JavaScript, client)
// If this code is running on the server, you don't want it to run any code 
// that might force a relayout, or you could get stuck in an infinite loop
if (xfa.host.name != "XFAPresentationAgent") {

    // You would load the URL that you want into this variable, based on 
    // whatever XML data is being passed into your form
    var sURL = "www.stackoverflow.com"; // mywebsite/mypage?option=xxx

    // URLs are encoded in XHTML.  In order to change the URL, you need 
    // to create the right XHTML string and push it into the Text object's 
    // <value> node. This is a super simple XHTML shell for this purpose.  
    // You could add all sorts of markup to make your hyperlink look pretty
    var sRichText = "<body><p><a href=\"" + sURL + "\">Foo</a></p></body>";

    // Assuming you have a text object called "Text1" on the form, this 
    // call will push the rich text into the node.  Note that this call        
    // will force a re-layout of the form
    this.resolveNode("Text1").value.exData.loadXML(sRichText, false, true);
}

There are a couple of caveats: URLs in Acrobat are only supported in Acrobat 9.0 and later. So if someone using an older version of Acrobat opens your form, the URLs won't work.

Also, as you can see from the "if (xfa.host.name !=...)" line, this code won't run properly if the form is being generated on the server, because forcing a re-layout of a form during docReady can cause problems on certain older versions of the LiveCycle server. If you do need to run this script on the server, you should probably pick a different event then form::docReady.

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