如何从ASP参数传递给XSL？ [英] How do I pass a parameter from ASP to XSL?
问题描述
我在写一个简单的ASP页面显示基于XML的一些团队轮班。这里的XML：
I'm writing a simple asp page to show a team rota based on some XML. Here's the XML:
<rota>
<shift date="20091201" primary="Chan" secondary="John" notes="notes"></shift>
<shift date="20091202" primary="Mike" secondary="Alex" notes="notes"></shift>
<shift date="20091203" primary="Ross" secondary="Mike" notes="notes"></shift>
<shift date="20091204" primary="Neil" secondary="Ross" notes="notes"></shift>
</rota>
我想我的asp网页中显示今天的罗塔细节和可能的细节在接下来的几天。因为后来我想能够设置一个有朝一日，看看谁的工作旁边，我希望能够从ASP传递一个YYYYMMDD日期的处理XML的XSL。
I want my asp page to show today's rota details and maybe the details for the next couple of days. Since later on I'd like to be able to set a day in the future to see who's working around then I want to be able to pass a YYYYMMDD date from the ASP to the XSL that processes the XML.
这里的XSL我到目前为止，只突出了硬codeD当前日期现在：
Here's the XSL I have so far, just highlighting the hardcoded 'current' date for now:
<xsl:template match="rota">
<html>
<head>
<title>Team Rota</title>
<LINK type="text/css" rel="stylesheet" href="http://www.csfb.net/homepage/global/scripts/csfb_intranet.css"/>
</head>
<body>
<table border="1">
<TR><TH>Date</TH><TH>Primary</TH><TH>Secondary</TH><TH>Notes</TH></TR>
<xsl:for-each select="shift">
<tr>
<xsl:choose>
<xsl:when test="@date = '20091203'">
<td bgcolor='FFF0F0'><xsl:value-of select="@date"/></td>
</xsl:when>
<xsl:otherwise>
<td><xsl:value-of select="@date"/></td>
</xsl:otherwise>
</xsl:choose>
<td><xsl:value-of select="@primary"/></td>
<td><xsl:value-of select="@secondary"/></td>
<td><xsl:value-of select="@notes"/></td>
</tr>
</xsl:for-each>
</table>
</body>
</html>
</xsl:template>
和这里的ASP，还没有传递任何参数：
and here's the ASP, not yet passing any parameters:
''// Load the XML
sourcefile = "rota.xml"
set source = Server.CreateObject("Microsoft.XMLDOM")
source.async = false
source.load(sourceFile)
''// Load the XSL
styleFile = Server.MapPath("rota.xsl")
set style = Server.CreateObject("Microsoft.XMLDOM")
style.async = false
style.load(styleFile)
htmltext = source.transformNode(style)
Response.Write htmltext
那么，如何一）参数传递给XSL和b）拿起参数，并在XSL使用它？
So how do I a) pass a parameter to the XSL and b) pick up that parameter and use it in the XSL?
感谢您的任何指导。
推荐答案
在你XSL创建一个 XSL。
In you xsl create a xsl:parameter at the top before all your templates.
<xsl:parameter name="showdate"/>
现在你可以把这个就像你将一个变量： -
You can now treat this like you would a variable:-
<xsl:when test="@date = $showdate">
为了在你需要使用一个XSL处理器对象允许您处理前添加参数来传递参数。反过来你从一个XSL模板对象的实例的处理器。反过来，你需要一个FreeThreadedDOMDocument分配到模板的样式表参数。因此，code是更复杂的： -
In order to pass a parameter in you need to use an XSL processor object which allows you to add the parameter before processing. In turn you get a processor from an instance of an XSL Template object. In turn you need a FreeThreadedDOMDocument to assign to the templates stylesheet parameter. Hence the code is more complex:-
Dim xsl : Set xsl = CreateObject("MSXML2.FreeThreadedDOMDocument.3.0")
xsl.async = false
xsl.load xslFile
Dim xml : Set xml = CreateObject("MSXML2.DOMDocument.3.0")
xml.async = false
xml.load sourceFile
Dim xslTemplate : Set xslTemplate = CreateObject("MSXML2.XSLTemplate.3.0")
xslTemplate.stylesheet = xsl;
Dim processor : Set processor = xslTemplate.createProcessor()
processor.addParameter "showDate", "20091203"
processor.input = source
processor.transform()
Response.Write processor.output
它的诱人分配Response对象处理器的输出参数，它工作得很好，而且更有效率。然而MSXML的最新服务包已经做了这样不兼容的技术与ASP的响应对象实施的IStream。
Its tempting to assign the Response object to the processor's output parameter which works quite well and is more efficient. However recent Service packs of MSXML have made such a technique incompatible with ASP's implementation of IStream in the Response object.
因此多数民众赞成你怎么做正式的，我是怎么做的，通常是到源XML的根节点注入一些arbitary属性然后使用一个变量： -
So thats how you do it officially, how I do it normally is to inject some arbitary attribute on to the source XML's root node then use a variable:-
xml.documentElement.setAttribute("_showDate", "20091203")
现在你可以使用一个变量而不是一个参数主模板中： -
Now you can use a variable instead of a parameter inside your main template:-
<xsl:template match="rota">
<xsl:variable name="showdate" select="@_showDate" />
<html> ...
<xsl:when test="@date = $showdate">
在此方法，您可以使用您已经使用变换code这要简单得多。
In this approach you can use the transform code you are already using which is much simpler.
这篇关于如何从ASP参数传递给XSL？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
