-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]] On
Behalf Of Henning Sittler
Sent: Wednesday, May 22, 2002 1:13
PM
To: Multiple recipients of list
witango-talk
Subject: Witango-Talk: ARG - Form
Image Button
I can't for the life of me figure out what I'm missing
here. I'm including some source code and explanation, so this will be a
lengthy question.
Skip to: ** THE PROBLEM ** to save time.
I'd like to use a Reset button on a form, but using
<input type=image> so that I don't have to use an ugly grey form
button. My Submit image button works great. In fact, the Reset
button works too, but it doesn't reset anything, it acts just like the Submit
button. So I added code to detect a click on the reset button specifically.
My form images are defined on the input form HTML page
as:
<INPUT TYPE=IMAGE
NAME="reset" SRC=""/assets/siteimages/reset.gif""
ALT="Reset" BORDER=0>
<INPUT TYPE=IMAGE
NAME="step"
SRC=""/assets/siteimages/step-billinginformation.gif""
ALT="Billing" BORDER=0>
Clicking on the reset form image button results in
defined x,y image pixel coordinate values being defined and saved in
<@ARG reset.x> and <@ARG reset.y>
I figure I can just check for <@ARG reset.x>,
and see if it has a defined length. If it does, then the rest button has
been clicked, and I should use an HTTP Redirect to reload the form input page.
** THE PROBLEM **
When I click the reset button, my
code does detect this, but the HTTP Redirect does not occur. Meanwhile,
subsequent statements commanding an HTTP Redirect (located in either the same
window or subsequent actions) function as expected. The state containing
the first function call comanding an HTTP Redirect is a cut and paste copy of
the second one seen below, as they should both do the same thing, but the first
one should trigger sooner if the Reset button was clicked instead of the
Submiot button.
This is code borrowed from the T2K Storefront demo,
and modified by me.
user$resetx
is used only for visual display to
the HTML output so I can do my own checking manually.
#### Results HTML ####
<@EXCLUDE>
<@PURGE user$resetx>
<@ASSIGN user$resetx
Value="<@LENGTH STR='<@ARG reset.x>'>">
</@EXCLUDE>
<@IF "<@LENGTH
STR='<@ARG reset.x>'>">
<@ASSIGN user$resetx Value="h2">
<@CALLMETHOD application$Common "HTTPRedirect('<@VAR
application$CGI><@VAR
application$RootPath>Order/Shipping.taf?_function=input&<@USERREFERENCEARGUMENT>')">
</@IF>
<@EXCLUDE>
<@COMMENT>
<@IF "LEN(<@ARG
reset.x>)" TRUE="<@ASSIGN user$resetx Value='<@VAR
user$resetx> - LEN(<@ARG reset.x>)'>" FALSE="">
<@IF "<@CALC
EXPR=LEN(<@ARG reset.x>)> > 0" TRUE="<@ASSIGN
user$resetx Value='<@VAR user$resetx> - LEN(<@ARG
reset.x>)'>" FALSE="">
<@ASSIGN user$resetx Value=<@LENGTH
STR="<@ARG reset.x>">>
</@COMMENT>
<@! "Track all entered or changed values for
user so they dont have to enter them again" >
<@ASSIGN user$ArgShipToName
"<@ARG ShipToName>">
<@ASSIGN user$ArgShipToCompany
"<@ARG ShipToCompany>">
<@ASSIGN user$ArgShipToAddressLine1
"<@ARG ShipToAddressLine1>">
<@ASSIGN
user$ArgShipToAddressLine2 "<@ARG ShipToAddressLine2>">
<@ASSIGN
user$ArgShipToAddressLine3 "<@ARG ShipToAddressLine3>">
<@ASSIGN user$ArgShipToCity
"<@ARG ShipToCity>">
<@ASSIGN user$ArgShipToState
"<@ARG ShipToState>">
<@ASSIGN user$ArgShipToZip
"<@ARG ShipToZip>">
<@ASSIGN user$ArgShipToCountry
"<@ARG ShipToCountry>">
<@ASSIGN user$ArgShipToPhone
"<@ARG ShipToPhone>">
<@ASSIGN user$ShipToResult "BadField">
<@COMMENT>
SET <@VAR user$ShipToResult>
= "BadField" until it passes all the checks below. If it does
not pass the checks, redirect
back to the main input form again.
</@COMMENT>
<@IF "!LEN(<@ARG ShipToName>) OR
LEN(<@ARG ShipToName>) > 100">
<@ASSIGN user$FieldName "you name">
<@ASSIGN user$FieldLength "100">
<@ELSEIF "!LEN(<@ARG
ShipToAddressLine1>) OR LEN(<@ARG ShipToAddressLine1>) >
100">
<@ASSIGN user$FieldName "your address">
<@ASSIGN user$FieldLength "100">
<@ELSEIF "!LEN(<@ARG
ShipToCity>) OR LEN(<@ARG ShipToCity>) > 100">
<@ASSIGN user$FieldName "your city">
<@ASSIGN user$FieldLength "100">
<@ELSEIF "!LEN(<@ARG
ShipToPhone>) OR LEN(<@ARG ShipToPhone>) > 100">
<@ASSIGN user$FieldName "your shipping address phone
number">
<@ASSIGN user$FieldLength "100">
<@ELSEIF "!LEN(<@ARG
ShipToCountry>)">
<@ASSIGN user$ShipToResult "NoCountry">
<@ELSEIF "!LEN(<@ARG
ShipToState>) AND ('<@ARG ShipToCountry>' = 'US' OR '<@ARG
ShipToCountry>' = 'CA')">
<@ASSIGN user$ShipToResult "NoState">
<@ELSEIF "<@LENGTH
STR='<@ARG reset.x>'>">
<@COMMENT>
Double checking for the Reset button here, but this also fails to
trigger the appropriate redirect below.
</@COMMENT>
<@ASSIGN user$ShipToResult "Reset">
<@ASSIGN user$resetx Value=1>
<@PURGE user$ArgShipToName>
<@ELSE>
<@PURGE user$ShipToResult>
<@PURGE user$FieldName>
<@PURGE user$FieldLength>
</@IF>
</@EXCLUDE>
<@IF "LEN(<@VAR
user$ShipToResult>)">
<@! "Return to input form" >
<@CALLMETHOD application$Common "HTTPRedirect('<@VAR
application$CGI><@VAR
application$RootPath>Order/Shipping.taf?_function=input&<@USERREFERENCEARGUMENT>')">
<@COMMENT>
</@COMMENT>
</@IF>
#### End Results HTML ####
The second (last) HTTP Redirect called here does
function properly if the other fields checkout OK. It does not function
properly if the reset button was pressed and reset.x has a value, which should
also mean that <@LENGTH STR='<@ARG reset.x>'> has a value, which
should cause <@ASSIGN user$ShipToResult "Reset">.
Feel free to email me privately. Thanks in
advance for any help.
Henning Sittler
www.inscriber.com
