The Second step is to set up tree control for the “Parent-Child tree” and defining an attribute to establish a relationship between the parent’s entity and the child’s entity in the “Entity Design” (See 9.3).

For the “Basic information tree” type, the definition of the attribute in relation to an entity that is to be displayed in the grid is a Form Design ( See 7.1.2.10.1.1.)

Set Assign list relationship for two Entities:

The next step is setting up the assign list. To get more Information about setting up the Assign List (See 7.1.2.21).

Assign list form control is use in Add Book Form.

Drop-Down of Assign list is set like:

Assignment list is connected to the entity “Categories”, containing the Tree.

After defining the assignment list the form behavior with Tree Form control should be defined in “others” form control features of the Assign List.

To be displayed as pop-up window.