When an App loads it may be necessary to default some data. There are four ways of doing this.
- Providing default values for the Fields in the FAB Workbench
- Assigning a User Parameter ID (e.g. Parameter ID WRK from the User Master record)
- Implementing methods DETERMINE_INITIAL_FIELD_VALUES or DETERMINE_FIELD_VALUES_ON_LOAD
- Setting the values during load of the Application using Javascript
1. Providing default values for the fields in the FAB Workbench
Using the Fields editor, enter the default value in the 'Default' column
2. Assigning a User Parameter ID
Note |
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Default values set in #1 is overwritten by this setting. |
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Setup a PID in your user profile.
Use SAP tcode SU01 and go to Parameters tab.
In this example the PID for WRK for this user has been set to 1000.
In your App assign the PID name to you variable. It will automatically assign the value of the PID to the field.
3. Implementing methods DETERMINE_INITIAL_FIELD_VALUES or DETERMINE_FIELD_VALUES_ON_LOAD
A. DETERMINE_INITIAL_FIELD_VALUES
Note |
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Values set using methods #1 and #2 are overwritten by this implementation |
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B. 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:
4. Set values on load of the Application using Javascript
Note |
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Values set using methods #1, #2 and #3 are overwritten by this implementation |
On the function defined in the OnLoad of the Page, the values can be set.
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