Default actions ease the implementation of the controller by providing expected actions.
According to the sub-dialogs defined in a (declarative or procedural) DIALOG block, the runtime system creates a set of default actions. These actions are provided to ease the implementation of the controller. For example, when using an INPUT ARRAY sub-dialog, the dialog instruction will automatically create the insert, append and delete default actions.
Table 1 lists the default actions created for the DIALOG interactive instruction, according to the sub-dialogs defined:
Default action | Control Block execution order |
---|---|
help |
Shows the help topic defined by the HELP clause. Only created when a HELP clause or option is defined for the sub-dialog. |
insert |
Inserts a new row before current row. Only created if INPUT ARRAY is used; action creation can be avoided with INSERT ROW = FALSE attribute. |
append |
Appends a new row at the end of the list. Only created if INPUT ARRAY is used; action creation can be avoided with APPEND ROW = FALSE attribute. |
delete |
Deletes the current row. Only created if INPUT ARRAY is used; action creation can be avoided with DELETE ROW = FALSE attribute. |
nextrow |
Moves to the next row in a list displayed in one row of fields. Only created if DISPLAY ARRAY or INPUT ARRAY used with a screen record having only one row. |
prevrow |
Moves to the previous row in a list displayed in one row of fields. Only created if DISPLAY ARRAY or INPUT ARRAY used with a screen record having only one row. |
firstrow |
Moves to the first row in a list displayed in one row of fields. Only created if DISPLAY ARRAY or INPUT ARRAY used with a screen record having only one row. |
lastrow |
Moves to the last row in a list displayed in one row of fields. Only created if DISPLAY ARRAY or INPUT ARRAY used with a screen record having only one row. |
find |
Opens the fglfind dialog window to let the user enter a search value, and seeks to the row matching the value. Only created if the context allows built-in find. |
findnext |
Seeks to the next row matching the value entered during the fglfind dialog. Only created if the context allows built-in find. |
INPUT ARRAY arr TO sr.* ATTRIBUTES( INSERT ROW=FALSE, APPEND ROW=FALSE, ... ) ...