add_data_item

Description:

public void add_data_item (string key, string? item)

Establishes a relationship between key and item internally in the setting which may be retrieved later.

Should not be used to store passwords or other secrets, which is what add_secret is for.

Before 1.24, item must not be null and not an empty string. Since 1.24, item can be set to an empty string. It can also be set to null to unset the key. In that case, the behavior is as if calling remove_data_item.

Parameters:

this	the SettingVpn
key	a name that uniquely identifies the given value `item`
item	the value to be referenced by `key`