XsltArgumentList.AddParam(String, String, Object) Method

public:
 void AddParam(System::String ^ name, System::String ^ namespaceUri, System::Object ^ parameter);

public void AddParam(string name, string namespaceUri, object parameter);

member this.AddParam : string * string * obj -> unit

Public Sub AddParam (name As String, namespaceUri As String, parameter As Object)

Parameters

Exceptions

Examples

The following example uses the AddParam method to create a parameter representing the current date and time.

using System;
using System.IO;
using System.Xml;
using System.Xml.Xsl;

public class Sample
{

 public static void Main()
 {

 // Create the XslCompiledTransform and load the stylesheet.
 XslCompiledTransform xslt = new XslCompiledTransform();
 xslt.Load("order.xsl");

 // Create the XsltArgumentList.
 XsltArgumentList xslArg = new XsltArgumentList();

 // Create a parameter which represents the current date and time.
 DateTime d = DateTime.Now;
 xslArg.AddParam("date", "", d.ToString());

 // Transform the file.
 using (XmlWriter w = XmlWriter.Create("output.xml"))
 {
 xslt.Transform("order.xml", xslArg, w);
 }
 }
}

Imports System.IO
Imports System.Xml
Imports System.Xml.Xsl

Public Class Sample

 Public Shared Sub Main()

 ' Create the XslCompiledTransform and load the stylesheet.
 Dim xslt As New XslCompiledTransform()
 xslt.Load("order.xsl")

 ' Create the XsltArgumentList.
 Dim xslArg As New XsltArgumentList()

 ' Create a parameter which represents the current date and time.
 Dim d As DateTime = DateTime.Now
 xslArg.AddParam("date", "", d.ToString())

 Using w As XmlWriter = XmlWriter.Create("output.xml")
 ' Transform the file.
 xslt.Transform("order.xml", xslArg, w)
 End Using

 End Sub
End Class

The example uses the following two data files as input.

order.xml

<!--Represents a customer order-->
<order>
 <book ISBN='10-861003-324'>
 <title>The Handmaid's Tale</title>
 <price>19.95</price>
 </book>
 <cd ISBN='2-3631-4'>
 <title>Americana</title>
 <price>16.95</price>
 </cd>
</order>

order.xsl

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
 <xsl:param name="date"/>
 <xsl:template match="/">
 <order>
 <date><xsl:value-of select="$date"/></date>
 <total><xsl:value-of select="sum(//price)"/></total>
 </order>
 </xsl:template>
</xsl:stylesheet>

Remarks

The parameter should correspond to a W3C type. The following table shows the W3C types, either XPath or XSLT, and the corresponding.NET class.

*This is equivalent to a node set that contains a single node.

If the parameter object being invoked from within the style sheet is not one of the above, it is converted according to the following rules:

• CLR numeric types are converted to Double.

• The DateTime type is converted to String.

• IXPathNavigable types are converted to XPathNavigator. XPathNavigator[] is converted to XPathNodeIterator.

All other types throw an error.

See also

• XSLT Extension Objects
• XSLT Parameters
• Using the XslCompiledTransform Class