Custom Form entity

A Custom Form is a form for which the code remains free.

Examples of custom forms include:

A non-database form, such as a login form.
A database form with only a single operation, such as an insert-only form.
A form that serves as the user interface for JSON calls.

A Custom Form entity is represented as a 4fdc file which can be opened and edited in Form Designer.

When a Custom Form entity is implemented from the diagram, the 4fdc file is created as well the following generated code:

The PUBLIC TYPE definition related to the records of the custom form.
The uiOpenForm function used by incoming relations to open the custom form (and uiOpenFormByKey if the records of the custom form contain a unique key).
The functions related to the outgoing relations.

Important: If you create a non-database custom form and involve it in a relation with a form that specifies a database, update the non-database custom form to specify the name of the database in its databaseName property.

The generated code can be customized.

Custom forms provide features not supported by CRUD forms:

Multiple master records are supported.
A form without any record is supported. This is typically a form with a static field.

Right-click the Custom Form entity in the diagram to display a context menu of options.

Table 1. Context Menu Options
Menu Option	Description
Open	Opens form in Form Designer.
Implement Custom Form	Creates a new blank Custom Form definition file (4fdc) to design from scratch.
Implement Custom Form from Database	Provides a wizard to create a Custom Form definition file (4fdc), allowing you to pick the columns and general display of your form. This option is generally preferred. The form can be modified after it is created.
Convert to	Converts entity from one type to another.
Add Relation To	Add a relation starting from the select form.
Locate in Project	Locates and highlights the selected item in the project.
Filter Items...	The Filter View dialog allows you to hide and show items on a diagram.