Specifying the BLANKS Keyword for Display Files

Figure 97 shows how to specify the BLANKS keyword.

Note:
Figure 98, Figure 99, and Figure 100 show some cases that restrict the BLANKS keyword.

Figure 97. Specifying the BLANKS Keyword

|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
00030A            QTY1           5Y 0B  5  2BLANKS(01 'ON=QTY1 IS ALL BLANKS')
00040A            QTY2           5Y 0B  6  2BLANKS(02 'ON=QTY2 IS ALL BLANKS')
00050A            QTY3           5Y 0B  7  2BLANKS(03 'ON=QTY3 IS ALL BLANKS')
     A

Three numeric fields (QTY1, QTY2, and QTY3) are displayed. If the display station user keys values into the fields and presses the Enter key, the following occurs:

Value as Keyed into Fields Value as Passed to Program Condition of Response Indicator
100 00100 Off
0 00000 Off
Blanks 00000 On



Note:
If the display station user presses a Field Exit key or the Erase Input key, the field appears blank because it contains nulls.