A Code Table Hierarchy is defined by a Code Table, which is the top level of a linked hierarchy of Code Tables. The Code Table Hierarchy record itself is purely an administrative facility to allow hierarchies to be grouped in one place.

Example

• Your application requires Users to select a city from a large number of pre-defined cities. In order to simplify the user experience, you decide that the user should first select their country and this will then filter the city list down to a more manageable size.
• You define a Code Table Hierarchy for Cities in your application in a file called CT_CitiesHierarchy.ctx. This hierarchy has a top level Code Table 'Country' which in turn cascades to a 'City' Code Table. When you build your application, the data manager will create this Code Table hierarchy definition record.
• User Ronan Rooney is entering a claim. He reaches the 'Select your City' screen and is presented with a drop-down list of countries, beside which is an unpopulated list of cities. Ronan selects his country of origin (Ireland) and the drop down list of cities is automatically populated with the cities of Ireland. Ronan selects Dublin and continues to fill out his claim form.

Technical Notes