How do I check particular attributes exist or not in XML?

Question

Part of the XML content:

<section name="Header">   <placeholder name="HeaderPane"></placeholder> </section>  <section name="Middle" split="20">   <placeholder name="ContentLeft" ></placeholder>   <placeholder name="ContentMiddle"></placeholder>   <placeholder name="ContentRight"></placeholder> </section>  <section name="Bottom">   <placeholder name="BottomPane"></placeholder> </section> 

I want to check in each node and if attribute split exist, try to assign an attribute value in a variable.

Inside a loop, I try:

foreach (XmlNode xNode in nodeListName) {     if(xNode.ParentNode.Attributes["split"].Value != "")     {         parentSplit = xNode.ParentNode.Attributes["split"].Value;     } } 

But I'm wrong if the condition checks only the value, not the existence of attributes. How should I check for the existence of attributes?

Answer 1

You can actually index directly into the Attributes collection (if you are using C# not VB):

foreach (XmlNode xNode in nodeListName) {   XmlNode parent = xNode.ParentNode;   if (parent.Attributes != null      && parent.Attributes["split"] != null)   {      parentSplit = parent.Attributes["split"].Value;   } }