$Web Num Form: Difference between revisions
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<span class="pageSubtitle"><section begin="desc" />Number of form fields with non-null data<section end="desc" /></span> | <span class="pageSubtitle"><section begin="desc" />Number of form fields with non-null data<section end="desc" /></span> | ||
$Web_Num_Form retrieves the number of fields on a form containing non-null data. | |||
$Web_Num_Form takes a single optional argument and returns a number. | |||
==Syntax== | ==Syntax== | ||
<p class="syntax"><section begin="syntax" /> %COUNT = $Web_Num_Form( fieldname ) | <p class="syntax"><section begin="syntax" /> %COUNT = $Web_Num_Form( fieldname ) | ||
<section end="syntax" /></p> | <section end="syntax" /></p> | ||
===Syntax terms=== | |||
<table class="syntaxTable"> | <table class="syntaxTable"> | ||
<tr><th>fieldname</th> | <tr><th>fieldname</th> | ||
| Line 16: | Line 16: | ||
</td></tr></table> | </td></tr></table> | ||
==Examples== | |||
An application written to handle forms generically would need to determine the number of input fields on a form before finding the names of the fields. | An application written to handle forms generically would need to determine the number of input fields on a form before finding the names of the fields. | ||
<p class="code"> %F_COUNT = $Web_Num_Form | <p class="code">%F_COUNT = $Web_Num_Form | ||
IF %F_COUNT EQ 7 THEN | |||
JUMP TO PROCESS_NETSCAPE | |||
ELSE | |||
JUMP TO PROCESS_OTHER_BROWSERS | |||
END IF | |||
</p> | </p> | ||
This is sample code from an application that sends a slightly different form to Netscape browser users than it does to other browsers. $Web_Num_Form is used to detect the number of fields on the form, and to route processing accordingly. This example uses the fact that for some reason the number of form fields returned will be 7 for Netscape clients but some other number for other browsers. To more precisely determine what browser the client is using, use "$WEB_HDR_PARM('USER-AGENT')". | |||
This is sample code from an application that sends a slightly different form to Netscape browser users than it does to other browsers. $Web_Num_Form is used to detect the number of fields on the form, and to route processing accordingly. This example uses the fact that for some reason the number of form fields returned will | |||
==See also== | ==See also== | ||
Revision as of 14:30, 13 June 2012
<section begin="desc" />Number of form fields with non-null data<section end="desc" />
$Web_Num_Form retrieves the number of fields on a form containing non-null data.
$Web_Num_Form takes a single optional argument and returns a number.
Syntax
<section begin="syntax" /> %COUNT = $Web_Num_Form( fieldname ) <section end="syntax" />
Syntax terms
| fieldname | Specifies to count only the form fields that match fieldname. If omitted, returns the count of all form fields. |
|---|
Examples
An application written to handle forms generically would need to determine the number of input fields on a form before finding the names of the fields.
%F_COUNT = $Web_Num_Form IF %F_COUNT EQ 7 THEN JUMP TO PROCESS_NETSCAPE ELSE JUMP TO PROCESS_OTHER_BROWSERS END IF
This is sample code from an application that sends a slightly different form to Netscape browser users than it does to other browsers. $Web_Num_Form is used to detect the number of fields on the form, and to route processing accordingly. This example uses the fact that for some reason the number of form fields returned will be 7 for Netscape clients but some other number for other browsers. To more precisely determine what browser the client is using, use "$WEB_HDR_PARM('USER-AGENT')".