107 lines
6.4 KiB
HTML
107 lines
6.4 KiB
HTML
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<meta name="DC.Title" content="SFLSCROLL (Subfile Scroll) keyword for display files" />
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">SFLSCROLL (Subfile Scroll) keyword for display files</h1>
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<div><p>Use this field-level keyword in the subfile control record format
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to return the relative record number of the subfile record that is at the
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top of the subfile when control is given back to your program.</p>
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<div class="section"><p>This keyword has no parameters.</p>
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<p>This field must have the
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keyboard shift attribute of signed numeric with zero decimal positions. It
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has to be 5 digits in length, and it must be defined as a hidden field. The
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hidden field will not display an input field on the screen.</p>
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<p>This field
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is returned to your program as part of the input for this subfile control
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record. If control is returned to your program by pressing the enter key,
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then the value returned will be the relative record number of the top subfile
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record currently displayed.</p>
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<p>With the ROLLUP or ROLLDOWN keywords, control
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is returned to the program when pressing a Page Up or a Page Down key will
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page beyond the end of the subfile. Without ROLLUP or ROLLDOWN, a message
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is displayed. If control is returned to your program because of the ROLLUP
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keyword, then the value returned will be the relative record number of the
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top subfile record on the next page. If control is returned to your program
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because of the ROLLDOWN keyword then a 1 will be returned in the relative
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record number field.</p>
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<div class="note"><span class="notetitle">Note:</span> The ROLLUP keyword is the same as the PAGEDOWN
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keyword and the ROLLDOWN keyword is the same as the PAGEUP keyword.</div>
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<p>SFLSCROLL
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is not allowed when SFLSIZ equals SFLPAG.</p>
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<p>This keyword is valid only
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for the subfile control record format.</p>
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<p>This keyword is helpful when
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scroll bars are used. (When SFLEND(*SCRBAR) is specified.) When the user interacts
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with the scroll bar, the hidden field that contains SFLSCROLL contains the
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relative record number of the record the user wants displayed. Control will
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only be returned to your program when the user attempts to scroll into parts
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of the subfile that are not written to or if the enter key is pressed. Another
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keyword that might be useful is SFLRCDNBR will *TOP as a parameter. After
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you have added records to the subfile, redisplay the subfile with the SFLRCDNBR
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in effect. Use the same number for this keyword that was returned to the SFLSCROLL
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keyword.</p>
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<p>You cannot specify the SFLROLVAL, the SFLSCROLL and the SFLRCDNBR
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keywords for the same field.</p>
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<p>Only one SFLSCROLL keyword is allowed in
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the subfile control record.</p>
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<p>Option indicators are not valid for this
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keyword.</p>
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</div>
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<div class="example"><h4 class="sectiontitle">Example</h4><p>The following example shows how to specify
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the SFLSCROLL keyword.</p>
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<pre>|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
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A
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A R SFLRCD SFL
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A CTLFLD 1Y 0H SFLCHCCTL
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A F1 4A O 6 10
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A R SFLCTLRCD SFLCTL(SFLRCD)
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A SFLSNGCHC
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A SFLPAG(5) SFLSIZ(&SFLSIZ);
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A SFLDSP SFLDSPCTL
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A ROLLUP(10)
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A 10 SFLEND(*SCRBAR)
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A F3 5S 0H SFLSCROLL
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A F2 4S 0H SFLRCDNBR(CURSOR *TOP)
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A SFLSIZ 5S 0P
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A 1 30'Panel Title'
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A 4 5'Multiple selection list:'</pre>
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<p>In
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this example, field F3 contains the relative record number of the subfile
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record that is at the top of the subfile when control is given back to the
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program.</p>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzakcmstkeyent.htm" title="You type the keyword entries that define display files in positions 45 through 80 (functions).">DDS keyword entries for display files (positions 45 through 80)</a></div>
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</div>
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</div>
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</body>
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