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

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

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

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

                return output;
            }
            
            // handle for supported conversions.
            switch (sourceType)
            {
                case BuiltInType.Boolean:
                {
                    return (bool)value; 
                }
                    
                case BuiltInType.SByte:   return Convert.ToBoolean((byte)value);
                case BuiltInType.Byte:    return Convert.ToBoolean((byte)value);
                case BuiltInType.Int16:   return Convert.ToBoolean((short)value);
                case BuiltInType.UInt16:  return Convert.ToBoolean((ushort)value);
                case BuiltInType.Int32:   return Convert.ToBoolean((int)value);
                case BuiltInType.UInt32:  return Convert.ToBoolean((uint)value);
                case BuiltInType.Int64:   return Convert.ToBoolean((long)value);
                case BuiltInType.UInt64:  return Convert.ToBoolean((ulong)value);
                case BuiltInType.Float:   return Convert.ToBoolean((float)value);
                case BuiltInType.Double:  return Convert.ToBoolean((double)value);

                case BuiltInType.String:
                {
                    return XmlConvert.ToBoolean((string)value); 
                }
            }
            
            // conversion not supported.
            return DBNull.Value;
        }