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POHow do I pass a XSLT parameter to a XmlDataSource correctly?
 

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  1. POHow do I pass a XSLT parameter to a XmlDataSource correctly?
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    <p>I believe I have all the code correct but I can't get it to work. The GridView has allowSorting = true. So in theory, when I click on the column header the xml in the gridview should sort by that column. The XML shows in the GridView, but doesn't sort at all. I'm stumped.</p> <p>DST_Test.Xml</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8" ?&gt; &lt;root&gt; &lt;data name="Test1.Text" xml:space="preserve"&gt; &lt;value&gt;Please Pick Bare Pump&lt;/value&gt; &lt;comment&gt;Tab - Pump Configuration&lt;/comment&gt; &lt;/data&gt; &lt;data name="Test2.Text" xml:space="preserve"&gt; &lt;value&gt;Complete&lt;/value&gt; &lt;comment&gt;A07&lt;/comment&gt; &lt;/data&gt; &lt;data name="Test3.Text" xml:space="preserve"&gt; &lt;value&gt;Confirmed&lt;/value&gt; &lt;comment&gt;A01&lt;/comment&gt; &lt;/data&gt; &lt;/root&gt; </code></pre> <p>DataSrcTransform.xslt</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:msxsl="urn:schemas-microsoft-com:xslt" exclude-result-prefixes="msxsl"&gt; &lt;xsl:param name="sortby"&gt;&lt;/xsl:param&gt; &lt;xsl:output method="xml" indent="yes"/&gt; &lt;!--&lt;xsl:template match="@* | node()"&gt; &lt;xsl:copy&gt; &lt;xsl:apply-templates select="@* | node()"/&gt; &lt;/xsl:copy&gt; &lt;/xsl:template&gt;--&gt; &lt;xsl:template match="root"&gt; &lt;root&gt; &lt;xsl:apply-templates select="data"&gt; &lt;xsl:sort select="$sortby"/&gt; &lt;/xsl:apply-templates&gt; &lt;/root&gt; &lt;/xsl:template&gt; &lt;xsl:template match="data"&gt; &lt;data&gt; &lt;xsl:attribute name="ctrlname"&gt; &lt;xsl:value-of select="@name"/&gt; &lt;/xsl:attribute&gt; &lt;xsl:attribute name="value"&gt; &lt;xsl:value-of select="value" /&gt; &lt;/xsl:attribute&gt; &lt;xsl:attribute name="comment"&gt; &lt;xsl:value-of select="comment" /&gt; &lt;/xsl:attribute&gt; &lt;/data&gt; &lt;/xsl:template&gt; &lt;/xsl:stylesheet&gt; </code></pre> <p>Code-behind</p> <pre><code>Protected Sub Page_PreRender(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.PreRender If Not IsPostBack Then XmlDataSource1.DataFile = "~/App_LocalResources/DST_Test.xml" XmlDataSource1.XPath = "//data" XmlDataSource1.TransformFile = xsltFileName GridView1.DataSource = XmlDataSource1 GridView1.DataBind() End If End Sub Protected Sub GridView1_Sorting(ByVal sender As Object, ByVal e As GridViewSortEventArgs) Handles GridView1.Sorting Select Case e.SortExpression Case "ctrlname" sortAttr = "@name" Case "value" sortAttr = "value" Case "comment" sortAttr = "comment" End Select Dim xslTrnsform As System.Xml.Xsl.XsltArgumentList = New System.Xml.Xsl.XsltArgumentList xslTrnsform.AddParam("sortby", "", sortAttr) XmlDataSource1.EnableCaching = False XmlDataSource1.TransformArgumentList = xslTrnsform XmlDataSource1.DataFile = "~/App_LocalResources/DST_Test.xml" XmlDataSource1.XPath = "//data" XmlDataSource1.TransformFile = xsltFileName GridView1.DataSource = XmlDataSource1 GridView1.DataBind() End Sub </code></pre> <p>HTML</p> <pre><code>&lt;div&gt; &lt;asp:GridView ID="GridView1" runat="server" AllowPaging="True" AllowSorting="True" PageSize="25" AutoGenerateColumns="False"&gt; &lt;Columns&gt; &lt;asp:BoundField DataField="ctrlname" HeaderText="ctrlname" SortExpression="ctrlname" /&gt; &lt;asp:BoundField DataField="value" HeaderText="value" SortExpression="value" /&gt; &lt;asp:BoundField DataField="comment" HeaderText="comment" SortExpression="comment" /&gt; &lt;/Columns&gt; &lt;/asp:GridView&gt; &lt;/div&gt; &lt;asp:XmlDataSource ID="XmlDataSource1" runat="server"&gt; &lt;/asp:XmlDataSource&gt; </code></pre>
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