Sorry, I didn't get back to you early, but I was out of town in personal 
trip.

Anyways,  I added the XmlNamespaceManager and it worked great thanks,

Claudio Taboada.

Stefan Misch wrote:
> Claudio,
> 
> your XML defines a default namespace so you must XmlNamespaceManager to 
> define that NS. Note that you must specify a prefix and then use that prefix 
> in your XPath expression to fully qualify the nodes. The correct XPath is 
> "//def:List[@Title='Events']/@Name". See my example in thread "Parsing XML 
> in C#" as of 10/25/06.
> 
> HTH,
> Stefan
> 
> 
> "Claudio Taboada" <ctaboada@t...> schrieb im Newsbeitrag 
> news:%23scOh4nIGHA.668@T......
>> Hello everyone,
>>
>> I am trying to extract the value of an attribute using C#. I know that the 
>> XPath expression that I am trying to use works fine(See style sheet 
>> below), but It is not working in C#. why?
>>
>> I get the error "Object reference not set to an instance of an Object".
>>
>> I also try with the line below, but I got the same error message.
>>
>> xmlResponse.DocumentElement.SelectSingleNode("List[@Title='Events']").Attributes.GetNamedItem("Name").Value;
>>
>> Any help is appreciated,
>>
>> Regards,
>>
>> Claudio Taboada.
>>
>> // C# Code
>>
>> private void button2_Click(object sender, System.EventArgs e)
>> {
>>     string temp;
>>     try
>>     {
>>         XmlDocument xmlResponse = new XmlDocument();
>>         xmlResponse.LoadXml(textBox1.Text);
>>         temp = "List[@Title='Events']/@Name";
>>         temp = xmlResponse.SelectSingleNode(temp).InnerXml;
>>         MessageBox.Show(temp);
>>     }
>>     catch (Exception Ex)
>>     {
>>         MessageBox.Show(Ex.Message);
>>     }
>> }
>>
>> // This is the xml in textBox1
>>
>> <Lists xmlns="http://schemas.microsoft.com/sharepoint/soap/">
>>     <List DocTemplateUrl="" DefaultViewUrl="/Lists/Contacts/AllItems.aspx" 
>> ID="{11EC53AD-FECD-42D6-92D7-D25EA1493E3F}" Title="Contacts" 
>> Name="{522FB575-A3F6-4211-8C07-E91D1074BF12}" />
>>     <List DocTemplateUrl="" DefaultViewUrl="/Lists/Events/AllItems.aspx" 
>> ID="{95A133D8-A03D-4C1B-8897-8A8468E9A7D6}" Title="Events" 
>> Name="{567FB575-A3F6-4211-8C07-E91D1074BF34}" />
>>     <List DocTemplateUrl="" DefaultViewUrl="/Lists/General 
>> Discussion/AllItems.aspx" ID="{559FB575-A3F6-4211-8C07-E91D1074BFA4}" 
>> Title="General Discussion" Name="{559FB575-A3F6-4211-8C07-E91D1074BFA4}" 
>> />
>> </Lists>
>>
>>
>> // This is the style sheet that gives me what I want
>>
>> <?xml version="1.0" encoding="UTF-8"?>
>> <xsl:stylesheet version="1.0" 
>> xmlns:xsl="http://www.w3.org/1999/XSL/Transform" 
>> xmlns:fo="http://www.w3.org/1999/XSL/Format">
>>
>>     <xsl:template match="/">
>>         <xsl:apply-templates/>
>>     </xsl:template>
>>
>>     <xsl:template match="Lists">
>>         <test>
>>             <field1><xsl:value-of select="List[@Title='Events']/@Name" 
>> /></field1>
>>         </test>
>>     </xsl:template>
>>
>> </xsl:stylesheet> 
> 
>