Opc.Ua.ContentFilter.ToExpandedNodeId C# (CSharp) Method

        private static object ToExpandedNodeId(object value, BuiltInType sourceType)
        {            
            // check for array conversions.
            Array array = value as Array;

            if (array != null)
            {
                ExpandedNodeId[] output = new ExpandedNodeId[array.Length];

                for (int ii = 0; ii < array.Length; ii++)
                {
                    output[ii] = (ExpandedNodeId)Cast(array.GetValue(ii), BuiltInType.ExpandedNodeId);
                }

                return output;
            }
            
            // handle for supported conversions.
            switch (sourceType)
            {
                case BuiltInType.ExpandedNodeId:
                {
                    return (ExpandedNodeId)value; 
                }

                case BuiltInType.NodeId:
                {
                    return (ExpandedNodeId)(NodeId)value; 
                }

                case BuiltInType.String:
                {
                    return ExpandedNodeId.Parse((string)value);
                }
            }
            
            // conversion not supported.
            return null;
        }