System.Xml.XmlNamespaceManager.LookupNamespaceDecl C# (CSharp) Méthode

        private int LookupNamespaceDecl( string prefix ) {
            if ( useHashtable ) {
                int declIndex;
                if ( hashTable.TryGetValue( prefix, out declIndex ) ) {
                    while ( declIndex != -1 && nsdecls[declIndex].uri == null ) {
                        declIndex = nsdecls[declIndex].previousNsIndex;
                    }
                    return declIndex;
                }
                return -1;
            }
            else {
                // First assume that prefix is atomized
                for( int thisDecl = lastDecl; thisDecl >= 0; thisDecl -- ) {
                    if ( (object)nsdecls[thisDecl].prefix == (object)prefix && nsdecls[thisDecl].uri != null ) {
                        return thisDecl;
                    }
                }

                // Non-atomized lookup
                for( int thisDecl = lastDecl; thisDecl >= 0; thisDecl -- ) {
                    if ( String.Equals( nsdecls[thisDecl].prefix, prefix ) && nsdecls[thisDecl].uri != null ) {
                        return thisDecl;
                    }
                }
            }
            return -1;
        }