$Web Form Name: Difference between revisions
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==Syntax== | ==Syntax== | ||
<p class="syntax"><span class="term">%rc</span> = $Web_Form_Name( field_number ) | <p class="syntax"><span class="term">%rc</span> = <span class="literal">$Web_Form_Name</span>(<span class="term"> field_number</span> ) | ||
</p> | </p> | ||
<var>$Web_Form_Name</var> takes a single argument and returns a string or null if the number references a non-existing field. | <var>$Web_Form_Name</var> takes a single argument and returns a string or null if the number references a non-existing field. | ||
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The only parameter is the number of the form field for which the name is being requested. This parameter must be specified. | The only parameter is the number of the form field for which the name is being requested. This parameter must be specified. | ||
<var>$Web_Form_Name</var> is useful when writing generic server applications, when the server does not know what field name exists at a particular location in a POST request. | ==Usage notes== | ||
<ul> | |||
<li><var>$Web_Form_Name</var> is useful when writing generic server applications, when the server does not know what field name exists at a particular location in a POST request. | |||
</ul> | |||
==Example== | |||
<p class="code">* Get the number of form fields. | <p class="code">* Get the number of form fields. | ||
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<li><var>[[$Web_Form_Parm]]</var> | <li><var>[[$Web_Form_Parm]]</var> | ||
<li><var>[[$Web_Num_Form]]</var> | <li><var>[[$Web_Num_Form]]</var> | ||
<li><var>[[$Web_Form_Parm_Lstr]]</var> | |||
<li><var>[[$Web_Form_Parm_Binary]]</var> | |||
</ul> | </ul> | ||
[[Category:Janus Web Server $functions|$Web_Form_Name]] | [[Category:Janus Web Server $functions|$Web_Form_Name]] | ||
Latest revision as of 04:15, 20 February 2020
Name of form field
$Web_Form_Name retrieves the name of a field on a form.
Syntax
%rc = $Web_Form_Name( field_number )
$Web_Form_Name takes a single argument and returns a string or null if the number references a non-existing field.
The only parameter is the number of the form field for which the name is being requested. This parameter must be specified.
Usage notes
- $Web_Form_Name is useful when writing generic server applications, when the server does not know what field name exists at a particular location in a POST request.
Example
* Get the number of form fields. %x = $Web_Num_Form * Load the field names into an array. For %y From 1 TO %x %field(%y) = $Web_Form_Name(%y) End For