| GetUInt64OrDefault(JsonValue, JsonValueType) | Gets the specified JsonValue as an UInt64 value if expectedType is Undefined or matches the Type property of the specified json parameter and it can be converted to UInt64; otherwise, returns 0. |
| GetUInt64OrDefault(JsonValue, UInt64, JsonValueType) | Gets the specified JsonValue as an UInt64 value if expectedType is Undefined or matches the Type property of the specified json parameter and it can be converted to UInt64; otherwise, returns defaultValue. |