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MasterPage Method and Codebehind

kwilliams

By kwilliams
in .NET

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kwilliams Member

kwilliams

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I'm using the ASP.NET MasterPage method for my new site, that includes a XML/XSLT transformation. Now I'm trying to create a form with XSLT and ASP.NET that uses a XSLT paramater to change the displayed data. I found a MSDN Library item "XSLT Parameters" at http://msdn2.microsoft.com/en-us/library/dfktf882.aspx, and it works great statically. Now I'm trying to implement the same concept on my MasterPage site, but when I put this code into the content page's codebehind doc, the parameter isn't being passed back from the ASP.NET content page to the XSLT doc.I'm hoping that I won't have to move the transformation to the content page, as that would defeat the point in me creating a dynamic site by using the MasterPage method. Below I'm including the code that I have so far. Also, here are some questions that I haven't been able to answer yet:Q: How should I go about using this method with a MasterPage method (including outputting the data in the <body> tag of the document)?If I have to move the transformation from the master page to the content page, ...Q: ...is there a way to create ONE central doc that contains the transformation setup for ease of future maintenance?Q: ...is there a way to have arguments on the content's codebehind page while keeping the XML/XSL transformation on the master page?If anyone can let me know where I'm going wrong, that would be great. Thanks.**********Working static version code**********XML doc (default.xml):

<?xml version="1.0" encoding="UTF-8"?><default>	<item id="top">Hello</item>	<item id="middle">World</item>	<item id="bottom">!</item></default>

XSL doc (default.xsl):

<?xml version="1.0" encoding="ISO-8859-1"?><xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"><xsl:output method="xml" encoding="UTF-8" indent="yes"/>	<xsl:template match="/">		<xsl:for-each select="default">			<xsl:value-of select="item" /><br />		</xsl:for-each>	</xsl:template></xsl:stylesheet>

ASP.NET doc (default.aspx):

<%@ Page Language="VB" %><%@ Import Namespace="System" %><%@ Import Namespace="System.IO" %><%@ Import Namespace="System.Xml" %><%@ Import Namespace="System.Xml.XPath" %><%@ Import Namespace="System.Xml.Xsl" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><script runat="server">	Partial Class _default		Inherits System.Web.UI.Page		Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)		Dim strThisPage_xml As String = "/docs/xml/default.xml"		Dim strThisPage_xsl As String = "/docs/xslt/default.xsl"		'Load recordId		Dim recordId_qs As String = Request.QueryString("record_id")		'Create the XPathDocument object		Dim doc As New XPathDocument(Server.MapPath(strThisPage_xml))		'Create the XslTransform object		Dim xslDoc As New XslCompiledTransform()		xslDoc.Load(Server.MapPath(strThisPage_xsl))		'Create the XsltArgumentList object		Dim args As New XsltArgumentList()		args.AddParam("record_id", "", recordId_qs)		'Perform the transformation - pass in the parameters in the XsltArgumentList		xslDoc.Transform(doc, args, Response.Output)		End Sub	End Class</script><html xmlns="http://www.w3.org/1999/xhtml" ><head runat="server"></head><body>	<form id="form1" runat="server">	<div>		</div>	</form></body></html>

HTML output:

<?xml version="1.0" encoding="utf-8"?>	Hello<br />	World<br />	!<br /><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml" ><head></head><body>	<form name="form1" method="post" action="default.aspx" id="form1"><div><input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="/wEPDwUKMTUxMzcyMjQyN2RkH2aryQjMtUhd8XjhSLZBSbhs5W8=" /></div>	<div>		<!-- ***THIS IS WHERE I WANT THE OUTPUT TO BE*** -->	</div>	</form></body></html>

**********Non-working dynamic version code**********XML doc (default.xml):

<?xml version="1.0" encoding="UTF-8"?><default>	<item id="top">Hello</item>	<item id="middle">World</item>	<item id="bottom">!</item></default>

XSL doc (default.xsl):

<?xml version="1.0" encoding="ISO-8859-1"?><xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"><xsl:output method="xml" encoding="UTF-8" indent="yes"/>	<xsl:template match="/">		<script>			<![CDATA[			function MM_jumpMenu(targ,selObj,restore){ //v3.0				eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");				if (restore) selObj.selectedIndex=0;			}			]]>		</script>		<select name="selectcategory" onChange="MM_jumpMenu('parent',this,0)"><option value="" selected="true">- Select a Category -</option>			<xsl:for-each select="default">				<option value="{@id}"><xsl:value-of select="item" /></option>			</xsl:for-each>		<select>	</xsl:template></xsl:stylesheet>

Master Page codebehind (MasterPage.master.vb):

Partial Class MasterPage	Inherits System.Web.UI.MasterPage	Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)		'Assign maincolumn XML/XSLT transformation properties		xslTransform_mc.DocumentSource = "/docs/xml/default.xml"		xslTransform_mc.TransformSource = "/docs/xslt/default.xsl"	End SubEnd Class

Master Page (MasterPage.master):

<%@ Master Language="VB" CodeFile="MasterPage.master.vb" Inherits="MasterPage" Debug="True" %><%@ Import Namespace="System" %><%@ Import Namespace="System.IO" %><%@ Import Namespace="System.Xml" %><%@ Import Namespace="System.Xml.XPath" %><%@ Import Namespace="System.Xml.Xsl" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"><html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"><head id="Head1" runat="server"></head><body>	<div id="content">		<!-- Dynamic MainColumn -->		<asp:Xml id="xslTransform_mc" runat="server"></asp:Xml>		</div><!-- end content --></body></html>

ASP.NET codebehind doc (default.aspx.vb):

Partial Class _default	Inherits System.Web.UI.Page	Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)		'Create the XsltArgumentList object		Dim args As New XsltArgumentList()		args.AddParam("record_id", "", recordId_qs)	End SubEnd Class

ASP.NET doc (default.aspx):

<%@ Page Language="VB" MasterPageFile="~/MasterPage.master" AutoEventWireup="false" CodeFile="default.aspx.vb" Inherits="_default" title="Home Page" %>

HTML output: nothing shows up. (I would hope that selecting "default.xml?record_id=top" from the drop-down menu would pull up "Hello".)

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kwilliams Member

kwilliams

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Well, I googled "XsltArgumentList Transform Source", and I came up with a lot of great resources for what I was looking for. The one that worked for me is titled "Create ASP.NET pages from XML data", and it's located at http://articles.techrepublic.com.com/5100-22_11-1050062.html. So I just added this bit of code to the default.aspx page:'Assign maincolumn XML/XSLT transformation propertiesxslTransform_mc.DocumentSource = strThisPage_xmlxslTransform_mc.TransformSource = strThisPage_xslxslTransform_mc.TransformArgumentList = args...and the arguments were applied to the XML/XSL transformation. Next, I'll be working on implementing this solution within the MasterPage method. If anyone can give me any pointers on that, that would be great. Thanks again.

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