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Validation of a select Menu using <cfselect>
Author: Dave Watts
Short Link: http://www.houseoffusion.com/groups/cf-talk/thread.cfm/threadid:911#304906
> Your fix is great - if you control your own CF Server, but if
> you've got a client who's on a shared box, then you need
> another work-around.
No, you can just copy the existing JS files to your own directory, then use
the SCRIPTSRC attribute of CFFORM.
Dave Watts, CTO, Fig Leaf Software
http://www.figleaf.com/
Fig Leaf Training: Adobe/Google/Paperthin Certified Partners
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Author: Heather Harkins
Short Link: http://www.houseoffusion.com/groups/cf-talk/thread.cfm/threadid:911#304853
Thanks, Phillip --
This is something that has irked me for years. Due to its limitations, I've never
really used CFFORM extensively, but I thought I'd give it a go for a new project
and hit this immediately.
Your fix is great - if you control your own CF Server, but if you've got a client
who's on a shared box, then you need another work-around. My charming husband has
a solution:
So, you take the SERIOUSLY FLAWED CFSELECT-generated validation function (called
_CF_hasValue) and set it to a new variable, called _CF_hasValue_old.
Then, you run through your NEW function, now called by the original one's name.
If the function finds a select box of size 1 on the form, it will loop through
the values until it finds one that is not only SELECTED but also has a VALUE (the
latter little tidbit is NOT something that CF validation checks for.
Ridiculous!). If it finds one, it breaks out of the function. Otherwise, it
continues on and will returns false.
On the other hand, if the field in question isn't a single-select, then the old
CF Validating function will run.
** Caveat: this assumes that Adobe's not going to be changing the names of any
functions with newer versions... ?? So use at your own risk.
So, for example, I configured my form like this (using attribute "queryposition"
to manage my valueles OPTION tag relative to my query output):
<CFFORM... blah blah>
<CFSELECT name="ThingID" required="Yes" size="1" queryposition="below"
message="Please make a Thing selection." value="ThingID" query="qThingTypes"
display="Things">
<OPTION>Please select a Thing Type</OPTION>
</CFSELECT>
<[SUBMIT]>
</CFFORM>
<SCRIPT>
var _CF_hasValue_old = _CF_hasValue;
_CF_hasValue=function(_b,_c,_d)
{
if (_b.type == 'select-one')
{
var bSelected = false;
for (var i=0; i<_b.options.length; i++)
{
if (_b.options[i].selected == true && _b.options[i].value != '')
{
bSelected = true;
break;
}
}
return bSelected;
}
else
return _CF_hasValue_old(_b,_c,_d);
}
</SCRIPT>
==================================================================
----- Excess quoted text cut - see Original Post for more -----
htm
Author: Phillip Molaro
Short Link: http://www.houseoffusion.com/groups/cf-talk/thread.cfm/threadid:911#211914
I just found this posted by a user in the LiveDocs and it works great!
What you need to do is to edit the javascript that the CF server writes so that
it also checks for a null value (your value="" part of your first option item).
This is a simple code change in a javascript template file. Edit this file:
C:\CFusionMX7\wwwroot\CFIDE\scripts\cfform.js
Inside this file, modify line #73 this way:
ORIGINAL:
else if (obj_type == "SELECT")
{
for (i=0; i < obj.length; i++)
{
if (obj.options[i].selected)
return true;
}
return false;
}
MODIFIED:
else if (obj_type == "SELECT")
{
for (i=0; i < obj.length; i++)
{
if (obj.options[i].selected && obj.options[i].value != "")
return true;
}
return false;
}
You may need to restart your coldfusion service, but otherwise this will work
with the standard required="yes" method in your cfselect tag.
Giving credit where credit is due:
http://livedocs.macromedia.com/coldfusion/5.0/CFML_Reference/Tags91.htm
Author: Bryan LaPlante
Short Link: http://www.houseoffusion.com/groups/cf-talk/thread.cfm/threadid:911#4028
Make it <option value=""></option>
----- Excess quoted text cut - see Original Post for more -----
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Author: Mak Wing Lok
Short Link: http://www.houseoffusion.com/groups/cf-talk/thread.cfm/threadid:911#4015
try to change <option selected></option>
to <option></option>
----- Excess quoted text cut - see Original Post for more -----
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Author: John Cowie
Short Link: http://www.houseoffusion.com/groups/cf-talk/thread.cfm/threadid:911#4001
Hi Everyone. I am running into a problem validating a select menu using
<cfform>. All of my <cfinput> tags are validating fine but the select
menu doesn't seem to be working.
Here is the code that I am using. If anyone can see what I am doing
wrong I would appreciate the help.
Thanks in advance
John
<cfform action="addrecord.cfm" method="POST">
<cfselect name="Status_Field" size="1" message="Please select a
category" required="Yes">
<option selected></option>
<option value="Member">Member</option>
<option value="Non-Member">Non-Member</option>
<option value="Student">Student</option>
<option value="Educator">Educator</option>
</cfselect>
</cfform>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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May 24, 2012
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