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<h1 class="topictitle1">MLTCHCFLD (Multiple-Choice Selection Field) keyword for display files</h1>
<div><p>Use this field-level keyword to define a field as a multiple-choice
selection field.</p>
<div class="section"><p>A multiple-choice selection field is a field that contains a fixed
number of choices from which a user can select multiple choices. The field
appears as a vertical or horizontal list of choices, an input field to the
left of each choice, or as a group of check boxes.</p>
<p>If you see an input
field, instead of a check box to the left of each choice, the selection character
default value is a slash (/). Message CPX5A0C contains the country-designated
selection characters. The value can be changed to allow alternate selection
characters for a multiple-choice selection field. These characters are the
allowed uppercase or lowercase country-designated selection characters. The
characters are defined when the display file is created.</p>
<div class="p">The format
of the keyword is: <pre>MLTCHCFLD[([*RSTCSR | *NORSTCSR]
[*NOSLTIND | *SLTIND]
[[(*NUMCOL nbr-of-cols) | (*NUMROW nbr-of-rows)]
[(*GUTTER gutter-width)]])]</pre>
</div>
<p>Parameters are optional. If
none are specified, the multiple-choice selection field choices will be arranged
in a single vertical column. The user will be allowed to move the selection
cursor out of this field using the arrow keys. There will be three spaces
between choices and selection indicators will be displayed.</p>
<p>The RSTCSR
parameter specifies whether the arrow keys should be allowed to move the selection
cursor outside of the selection field. <samp class="codeph">*RSTCSR</samp> specifies
that the arrow keys will not cause the selection cursor to move outside of
the selection field. <samp class="codeph">*NORSTCSR</samp> specifies that the arrow keys
will cause the selection cursor to leave the selection field. The default
is <samp class="codeph">*NORSTCSR</samp>.</p>
<div class="note"><span class="notetitle">Note:</span> An exception to the restrictions imposed
by <samp class="codeph">*RSTCSR</samp> happens if the selection field is the only field
contained within a pull-down window. In that case, when the selection cursor
is within the leftmost or rightmost columns, the left and right arrow keys
will close the current pull-down window and open the pull-down window associated
with the menu-bar choice to the left or right of the current menu-bar choice.</div>
<p>The <samp class="codeph">*RSTCSR</samp> parameter
is ignored on displays that are not connected to a controller that supports
an enhanced interface for nonprogrammable workstations.</p>
<p>The SLTIND parameter
indicates whether selection indicators (such as check boxes) should be displayed. <samp class="codeph">*NOSLTIND</samp> specifies
that the selection indicators should not be displayed. The default is <samp class="codeph">*SLTIND</samp>.</p>
<div class="p"><samp class="codeph">*NUMCOL</samp> specifies
that this selection field should be displayed in multiple columns with the
choices spread across the columns in this manner: <pre>choice1 choice2 choice3
choice4 choice5 choice6
choice7 choice8 choice9</pre>
</div>
<p>The nbr-of-cols portion of the
parameter specifies how many columns the selection field should contain. Nbr-of-cols
must be a positive integer and the entire multiple-choice selection field
must be able to fit on the display when placed in the specified number of
columns.</p>
<div class="p"><samp class="codeph">*NUMROW</samp> specifies that this selection field
should be displayed in multiple rows with the choices spread across the columns
in this manner: <pre>choice1 choice4 choice7
choice2 choice5 choice8
choice3 choice6 choice9</pre>
</div>
<p>The nbr-of-rows portion of the
parameter specifies how many rows the selection field should contain. Nbr-of-rows
must be a positive integer and the entire multiple-choice selection field
must be able to fit on the display when placed in the specified number of
rows.</p>
<p>The *GUTTER parameter is optional and specifies the number of
spaces to be placed between each column of the multiple-choice selection field.
It can only be specified if either *NUMCOL or *NUMROW has been specified and
must immediately follow the (*NUMxxx #) parameter. The gutter-width must be
a positive integer of at least 2. If *GUTTER is not specified, the default
of gutter-width is set to three spaces.</p>
<p>A field containing
the MLTCHCFLD keyword must contain one or more CHOICE and CHCCTL keywords
defining the choices for the field.</p>
<p>The field containing the MLTCHCFLD
keyword must be defined as an input-capable field with the data type Y and
length of two. The position specified for the field is the position of the
input field displayed to the left of the first choice or of the uppermost
check box. If *NOSLTIND is used on the PULLDOWN keyword and the device is
attached to a controller that supports an enhanced interface for nonprogrammable
workstations, the position is the first character of the text for the first
choice. On input, the field contains the number of the choices selected, or
0 if no choice was selected. On output, the value of the field is ignored.</p>
<p>Provide
a minimum of two spaces between the end of the previous field and the position
specified for the multiple choice field. This allows an ending attribute for
the previous field, and a beginning attribute for the multiple choice field.
These attributes cannot overlap.</p>
<p>The following keywords can be specified
on a field with the MLTCHCFLD keyword:</p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" width="100%" frame="void" border="0" rules="none"><tbody><tr><td valign="top" width="50%"><p>ALIAS<br />
AUTO(RA)<br />
BLANKS<br />
CHANGE<br />
CHCAVAIL<br />
CHCUNAVAIL<br />
CHCSLT<sup>1</sup><br />
CHCCTL<br />
CHECK(ER, FE)<sup>2</sup><br />
CHOICE</p>
</td>
<td valign="top" width="50%"><p>CHGINPDFT<br />
COLOR<sup>3</sup><br />
FLDCSRPRG<br />
DSPATR(RI UL BL CS HI ND PC)<sup>3</sup><br />
ERRMSG<br />
ERRMSGID<br />
INDTXT<br />
OVRATA<br />
OVRATR<br />
PUTRETAIN<br />
TEXT</p>
</td>
</tr>
</tbody>
</table>
</div>
<div class="note"><span class="notetitle">Notes:</span> <ol><li>CHCSLT functions only if the multiple-choice selection field is displayed
in a pull-down menu that does not display selection indicators, when PULLDOWN(*NOSLTIND)
is specified.</li>
<li>Check(FE) applies only to a display attached to a controller that does
not support an enhanced interface.</li>
<li>If the COLOR or DSPATR keyword is specified for a field with the MLTCHCFLD
keyword, it applies only to the input field portion of the selection field
on character-based displays.</li>
</ol>
</div>
<p>Option indicators are not valid for this keyword.</p>
</div>
<div class="example"><h4 class="sectiontitle">Example</h4><p>The following example shows how to specify
the MLTCHCFLD keyword:</p>
<pre>|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
A
A R RECORD
A F1 2Y 0B 3 35MLTCHCFLD
A 01 CHOICE(1 '&gt;Undo ')
A CHOICE(2 &amp;MARKTXT);
A CHOICE(3 '&gt;Copy ')
A CHCCTL(1 &amp;CTLONE1 MSG1111 QUSER/A)
A CHCCTL(2 &amp;CTLTWO1 &amp;MSG1 &amp;LIB/&amp;MSGF);
A CHCCTL(3 &amp;CTLTHR1);
A CTLONE1 1Y 0H
A CTLTWO1 1Y 0H
A CTLTHR1 1Y 0H
A MSGF 10A P
A LIB 10A P
A MARKTXT 10A P
A</pre>
<p>The CHCCTL keyword is required for each CHOICE keyword
used for the MLTCHCFLD.</p>
<p>On input, the hidden field for the CHCCTL keyword
indicates whether the choice was selected. 0 indicates the choice was not
selected; 1 indicates the choice was selected. On output, the hidden field
controls the availability of the choice, and is used to set a default selection
of a choice. 0 indicates the choice should be available, 1 indicates the choice
should be selected by default, and 2 indicates the choice is unavailable.
Other values, such as 0, are truncated.</p>
</div>
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<div class="familylinks">
<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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