Applies to Infiniti v8.2 or later
Please note that from Infiniti v9.3 onwards key fields have been renamed filter fields
Data Source filter fields have a 'Required' check box as shown in the image below:
If the "Required" checkbox is ticked, a data source will not retrieve data until a value has been entered for that filter. If this data source is visible in Produce an error message that says "required filter not supplied" will be displayed.
For example, a data source loads data from a database. In Manage, if the "ID" has been ticked as a "Required" filter field as shown in image above, the data will be queried only once the "ID" is provided. If user doesn't enters the "ID", the data source will not attempt to load any data from the database until that filter has a value.
datasource filter field required prevent data source calls blank called without