129 RequiredIf validation attribute I've written a that requires a particular property value when a different property has a certain value (what you require) or when a different property has anything but a specific value. This is the code that may help:
16 How to add property to a python class dynamically? Say you have an object that you want to add a property to. Typically, I want to use properties when I need to begin managing access to an attribute in code that has downstream usage, so that I can maintain a consistent API.
Browse area code 209 phone numbers, prefixes and exchanges. The 209 area code serves Stockton, Modesto, French Camp, Fresno, Merced, covering 71 ZIP codes in 10 counties.
Find 209 area code details including city, time zone, and map. Lookup area code 209 phone number, name, and location.
Area codes 209 and 350 are telephone area codes in the North American Numbering Plan (NANP) for the U.S. state of California. Their service area includes the northern San Joaquin Valley and Sierra Foothills, including Stockton, Modesto and Merced.
Get information and map of 209area code, California which shows the counties covered in it. Also get the county list which belongs to area code 209.
209 Area Code Map, Where is 209 Area Code in California - Maps of World
209 is an area code located in the state of California, US. The largest city it serves is Fresno. Find out where 209 area code zone from, which states, counties and cities it covers. Get the most exact information on time zones here.