public Component Find(string FullPath)
{
// ------------------------------------------------------
// Locates a component with the specified full path
// e.g. /RootComponent/Child/SubChild
// ------------------------------------------------------
if (FullPath == "")
{
throw new Exception("Cannot call Find with a blank path");
}
if (FullPath[0] != Component.Delimiter)
{
throw new Exception("Path must be fully qualified: " + FullPath);
}
int Pos = FullPath.IndexOf(Component.Delimiter, 1);
string RootName, NamePath;
if (Pos == -1)
{
RootName = FullPath.Substring(1);
NamePath = "";
}
else
{
RootName = FullPath.Substring(1, Pos - 1);
NamePath = FullPath.Substring(Pos + 1);
}
if (RootName.ToLower() != RootComponent.Name.ToLower())
{
return(null);
}
if (NamePath == "")
{
return(RootComponent);
}
else
{
return(RootComponent.Find(NamePath));
}
}
public static XmlNode Find(XmlNode Node, string NamePath)
{
// ----------------------------------------------------
// Find a child with the specified NamePath. NamePath
// can be a single child name or a path delimited with
// '/' characters e.g. ChildNode/SubChildNode or /RootNode/ChildNode
// Returns null if no child found.
// ----------------------------------------------------
if (Node == null)
{
return(null);
}
if (NamePath == "")
{
throw new Exception("Cannot call FindByName with a blank path");
}
if (NamePath[0] == Delimiter)
{
Node = Node.OwnerDocument.DocumentElement;
int Pos = NamePath.IndexOf(Delimiter, 1);
string RootName;
if (Pos == -1)
{
RootName = NamePath.Substring(1);
NamePath = "";
}
else
{
RootName = NamePath.Substring(1, Pos - 1);
NamePath = NamePath.Substring(Pos + 1);
}
if (RootName.ToLower() != Name(Node).ToLower())
{
return(null);
}
if (NamePath == "")
{
return(Node);
}
}
string ChildName, Remainder;
int PosDelimiter = NamePath.IndexOf(Delimiter);
if (PosDelimiter != -1)
{
ChildName = NamePath.Substring(0, PosDelimiter);
Remainder = NamePath.Substring(PosDelimiter + 1);
}
else
{
ChildName = NamePath;
Remainder = "";
}
if (ChildName == "..")
{
return(Find(Node.ParentNode, Remainder));
}
else if (ChildName.Length > 0 && ChildName[0] == '@')
{
return(Node.Attributes[ChildName.Substring(1)]);
}
else
{
foreach (XmlNode Child in Node.ChildNodes)
{
if (Name(Child).ToLower() == ChildName.ToLower())
{
if (Remainder == "")
{
return(Child);
}
else
{
return(Find(Child, Remainder));
}
}
}
}
return(null);
}