Page History
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A
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filter
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manages
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its
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associated
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instance
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list.
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When
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a
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RAMP
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screen
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deletes,
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adds
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or
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changes
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business
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object
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instances,
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it
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needs
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to
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notify
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the
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filter
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that
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a
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change
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has
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occurred.
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Create
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the
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Filter
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with
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Program
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Coding
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Assistant
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To
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create
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a
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filter
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that
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listens
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for
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changes
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from
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RAMP
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screens
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use
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the
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Program
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Coding
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Assistant
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and
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select
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the
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option
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Routine
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to
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listen
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for
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changes
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and
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update
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the
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instance
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list:
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This option creates Filter Code which Automatically Handles Changes to Instance List.
Add AVSIGNALEVENT Function to the Button Script
Add an AVSIGNALEVENT Function in the button script of your RAMP destination screen for the button that handles the change (typically Save or Delete) to signal to the filter that the instance list needs to change.
For example, in a RAMP screen that updates an object, add this statement to its SAVE button script:
AVSIGNALEVENT("Update_List_Entry", "BUSINESSOBJECT", objListManager.AKey1
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[0...
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The
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event
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being
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signaled
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is
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named
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Update_List_Entry,
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and
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the
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value
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being
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passed
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is
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the
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identifier
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of
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the
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instance
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that
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has
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been
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updated.
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To
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handle
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the
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saving
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of
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a
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newly
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created
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object,
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you
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must
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pass
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to
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the
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filter
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the
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identifier
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of
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the
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object.
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For
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example,
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to
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add
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a
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new
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employee
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with
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employee
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number,
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you
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would
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first
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capture
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the
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employee
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number
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on
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the
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screen
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using
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the GETVALUE Function and store it as a property of the objGlobal object, and then pass it to the filter:
objGlobal.utxtEmployeeCode = GETVALUE("utxtEmployeeCode");
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SENDKEY(KeyEnter);
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AVSIGNALEVENT("Add_List_Entry", "BUSINESSOBJECT", objGlobal.utxtEmployeeCode);
(The utxtEmployeeCode field is the employee number field that has been defined as a text field on the destination screen.)
The
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standard
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event
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names
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you
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can
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use
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to
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update
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the
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instance
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list
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are:
- Refresh_Instance_List
- Update_List_Entry
- Add_List_Entry
- Delete_List_Entry.