When a Form loads it may be necessary to default some data. There are two ways of doing this.
- providing default values for the Fields in the FAB Workbench
- implementing method DETERMINE_INITIAL_FIELD_VALUES
1. Providing default values using the FAB Workbench
Using the Fields editor, enter the default value in the 'Default' column
2. Implement method DETERMINE_INITIAL_FIELD_VALUES
Note: default values set in DETERMINATE_INITIAL_FIELD_VALUES overrides any default set in the workbench.
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3. Implement method DETERMINE_FIELD_VALUES_ON_LOAD
This method is used to provide default data and to overwrite existing Form data at various stages through out the Form life-cycle.
This method provides a parameter I_HEADER_INSTANCE which allows the method to determine the current state of the Form via fields such as
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This method is called once for each field in the form via parameter I_FIELD_NAME and the method may set the value of each field using the parameter E_FIELD_VALUE.
A typical implementation is as follows:
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