| GetInt64OrDefault(JsonValue, JsonValueType) | Gets the specified JsonValue as an Int64 value if expectedType is Undefined or matches the Type property of the specified json parameter and it can be converted to Int64; otherwise, returns 0. |
| GetInt64OrDefault(JsonValue, Int64, JsonValueType) | Gets the specified JsonValue as an Int64 value if expectedType is Undefined or matches the Type property of the specified json parameter and it can be converted to Int64; otherwise, returns defaultValue. |