I am having a problem finding a child node (c#)

Hi !

My XML is a bit like this:

<Layers><Layer><OverlapNames>
       ...</OverlapNames><CommonNames>
       ...</CommonNames><SnapNames><SnapName Name="zzz" /><SnapName Name="yyy" /></SnapNames</Layer></Layers>

I have this initial XmlNode which returns a valid object:

XmlNode nodeLayer = xmlDoc.SelectSingleNode(String.Format("Layers/Layer[@Name=\"{0}\"]", strLayer));

Now what I want to do is try to find within this node if there is a SnapNames/SnapName with a value of, eg: zzz.

So I thought this would work (where strLayer2 is "zzz":

XmlNode nodeLayer2 = nodeLayer.SelectSingleNode(String.Format(".//SnapsNames/SnapName[@Name=\"{0}\"]", strLayer2));

// Also tried:
XmlNode nodeLayer2 = nodeLayer.SelectSingleNode(String.Format("SnapsNames/SnapName[@Name=\"{0}\"]", strLayer2));

But nodeLayer2 is always null! The only way I have managed to do it so far is like this:

bool bIsSnapName = false;
if (nodeLayer.HasChildNodes)
{
  for (int i=0; i<nodeLayer.ChildNodes.Count; i++)
  {
      if (nodeLayer.ChildNodes[i].Name == "SnapNames")
      {
           XmlNode nodeSnapNames = nodeLayer.ChildNodes[i];
           XmlNode nodeSnapName = nodeSnapNames.SelectSingleNode(String.Format("SnapName[@Name=\"{0}\"]", strLayer2));
           if (nodeSnapName != null)
           {
              bIsSnapName = true;
              break;
           }
      }
  }
}

What am I doing wrong? How can I take the nodeLayer object and return the sub node from SnapNames/SnapName where Name = "zzz"?

Thanks.