# Calculate Field Based On Another Field In Form

Jul 23, 2005

Is there a way I can calculate a field in a form based on another field in
the same form. When clicking submit, both values should be posted to the
next page. I want to be able to type in a value in one field, and
automatically in a second field the value*1,36 should appear.

## Calculate A Field Value Based On An Other Field

Jun 2, 2011

I have designed an online registration system for a non profit in ASP/SQL. After the members register for classes they are automatically redirected to an invoice page with class fees. At the bottom of the page I have a Total Fees field of all the classes. The member is supposed to pay this amount to our organization.

Question: We decided to do an online payment this year and would like to calculate a 2% additional amount on the Total Fees. This amount is paid to the Payment Merchant site. We cannot afford to lose the 2% since we are a non profit.

1) Add a new field under the Total field
2) And calculate the 2% additional fees and do a Grand Total.

## Calculate Age Based On Dob Field?

Nov 23, 2010

I am trying to calculate age based on the date of birth input into a text field.
the date field should allow users to enter a one or two digit month, one or two digit date and a two or four digit year. Users should be able to enter any of the following date formats: 11-2-10, 1-25-2010, or 01/25/2010. On some days it works and others it wont, like 11-1-91 returns that the user is under 18.

function checkAge(){
var stDate = document.getElementById("birth").value;
var dayPartToDate = parseInt(stDate.substring(0,2),10);
var monPartToDate = parseInt(stDate.substring(3,5),10);

[Code]....

## Dynamically Showing Field Based On Text Value From Another Field?

Nov 18, 2009

I have a text field, call it income, that when the input is > 0 I need to dynamically show the next text box, and if it is blank hide the next text box. I would like to use onBlur but can't seem to get it to work.

## Copy And Paste Form RTF Document Into Field In Asp Form Cause It To Bypass Field Length And Javascript Validation - How To Overcome?

Jul 23, 2005

I have a web form with several fields. If I copy & paste from a RTF document into a field, the javascript validation and field length are bypassed and cause the form to fail.

## Populate Form Field Based On Select Option?

Jan 14, 2009

Is there some example js that shows how to populate a text field on a form, based upon what option is chosen in a select form field? The options can be hardcoded and it would be great to also have a default if js is off on the client side.code...

## Make A Button Visibile Based On Form Field Value?

Nov 19, 2009

Buttons visibility is set to hidden to start. Suggestions?

<script Language="JavaScript">
Function CKPMT1()
Var PMT1;
PMT1 = document.Form1.BalPmtPayee.value;
IF PMT1 = "" then ;

[Code]...

## Autopopulate A Field Based On Value In Another Field

Jun 27, 2011

I have two drop down fields. When I select any value in the first drop down i want the second dropdown to automatically populate the value related to the first one. For e.g i have the first field as name and the second field as measured in. If I select 'Potato' in the first dropdown then the second drop down should populate 'kg'.

## Show/Hide Text And Form Field Based On Drop Down Selection

Jul 20, 2005

I'm trying to show/hide a simple piece of text and a text field on a
form based on what choice is made from a drop down box.

<select name="dropdown" size="1">
<option selected value="">Please make a selection</option>
<option value="1">Choice 1</option>
<option value="2">Choice 2</option>
<option value="3">Choice 3</option>
<option value="4">Other</option>
</select>

i.e. if Choice 2 is selected I'd like to display a new <tr> with the
following:

<tr>
<td>New text field:</td>
<td><input name="newField" type="text size="20"></td>
</tr>

if any other choices are made, I don't want to display anything.
I've tried several onchange() functions but can't achieve what I'm
looking for.

## Calculating Total Price Based On Extra Data In Form Field?

Nov 2, 2009

I need the value of my drop down box options to contain size information rather than price. However I would like to be able to calculate a price for the items based on what size the user selects as well as the quantity. Below is the code I came up with (which doesn't work obviously)What can I do to get this to work for me?

<script type="text/javascript">
<!--

[code]....

## Form Validation Field Values Not Saved If One Field Is Not Completed/invalid?

Feb 3, 2009

The following form validation script works, currently if one of the five fields are completed, a message appears the remaining field(s) must be completed etc. Although the information the user has inputted in the first field is cleared. How can this information be available, if there is one problem in the form it doesn't make sense that the user must re-input all the information again. I look forward to hearing your response,

function validate_form ( )
{
valid = true;

[code]....

## Only Validating One Field At A Time In A Multi Field Form?

Aug 17, 2010

my javascript code is only validating one field at a time (as in it validates on field then submits the form, instead of going through the entire thing and then returning it as true and submitting it...) I'm not sure what to do to be honest, I've looked up google to no real avail.. my variables are declared in a seperate file to the actual even handlers and I have heaps of comments through out it, so please don't judge lol i'm still learning Quote:

//Event Registrations (Variable Declarations) found in validation_chkr.js
//Validate Entire Form using validate_join()
function validate_join()

[code]....

## Jquery :: Form Field Clear \ Form Field Reset?

Nov 12, 2011

i think this will help people a lot, cuz i couldn't find any simple answer by googling 3 hours...i need a very very simple jquery form field reset.here is the picture what i need:

HTML Code:
<script type='text/javascript' src='http://code.jquery.com/jquery-1.6.4.min.js'></script>
<script>

[code]....

## Calculate Field Values Using Javascript

Feb 26, 2006

Can someone explain how I can use javascript (I am assuming this is the best
way to do it) to add two field values together. I.e. field 1 plus field 2
equals field 3 (this is in a php form)

Also how can I set a field to be a value depending on what the user selects,
i.e. they may have eight items to select from and each one has a different
value.

The above javascript will then use that value to add to another field value
to give a me a total value....

## Copy Date From Field To Field In A Form

Feb 15, 2006

I have a site for property bookings with 2 calendars to enter start and end date. The calendar im using doesnt have any obvious facility to copy yhe date to 2 fields so each one has to be done, months in advance this can be a real pain.

Does anyone have any ideas how i can take the data inserted into one field and copy it to the second?

## JQuery :: (.) Period In Value Field - Show/hide A Div Based Based On The Selection Made Via A Dropdown

Apr 9, 2010

Im using a jQuery script to show/hide a div based based on the selection made via a dropdown.

<script type="text/javascript" src="jquery-1.3.2.min.js"></script>

The problem im having is that the value used in the dropdown lists are price values eg 10.00

Consequently jQuery seems to interprit these as css notations, meaning the code doesnt work.

## Pre Populate Text Field Based On Another Text Field

Jan 23, 2010

I'm developing a web page. It includes 2 text boxes. One text box for city and another text box for std code. I wrote the code for auto suggestion to city. Now i want to pre populate the STD code when ever a known city is selected (when city is selected from the recommendations displayed for city field).

## Invoice Form - User Can Add - Input Field - After Adding A New Input Field - The Content In The Other Fields Is Deleted

Sep 1, 2011

I'm now working on kind of invoice form which in it the user can add as much input field as he wants.

The problem is that after adding a new input field - the content in the other fields is deleted.

Code:

## Sum Of Array Elements - Add And Delete Dynamic Rows And Auto Calculate The Amount Field By Multiplying Qty And Rate

Mar 21, 2011

This is my code to add and delete dynamic rows and auto calculate the amount field by multiplying qty and rate.

[Code]...

## Form Text Field/SUBMIT Links To Onsite URL - On Home Page - Text Field And Submit Button ?

Feb 22, 2009

I have a website containing 26 subdirectories 'a' to 'z'

On the home page I want a text field and submit button

If someone for example types 'j' it will go to the 'j' folder home page

Does anyone know where I might find code like this?

## Dynamically Set A Field Based Upon A Parameter

Jul 23, 2005

Is something like this possible?

A form with x fields named
field1, field2, ... fieldx

I'd like to set the field specified in the parameter

function SetUnknownField(FieldID)
{
document.myform.field+FieldID+.value="Something calculated";
}

## Show A Field Based On Another Fields Value?

Mar 9, 2011

I am trying to show a field based on another field's value and hide it it initially... like when you want students to select their schools if they have gone for education ortherwise the school field remains inactive...I have the folowing scipt but it is not being fired on page load...

<script type="text/javascript">
{
var tName = 'dbo.Register';

[code]....

## Update Field Based On What Is Selected

Oct 7, 2009

I am trying to create this form to update a field when a certain item is selected from a dropdown menu. I would like to have it to where when heat pump is selected from heating type, the AFUE field that originally has a value of 80 needs to be updated to 7.7. I would also like for the wording to be changed... Instead of having it say Current AFUE or HSPF, have it to where when a Single Speed Furnace or Variable Speed Furnace then it says AFUE below it, when Heat Pump is selected then it says HSPF, and if Electric Heat is selected do not have anything or even delete the whole field.

[Code]....

## Fill Value Of Text Field Based On Dropdown?

Sep 25, 2010

What im trying to do is for each item selected from the drop down, display its value in a text box (GAC). I have attached a picture of the image to clarify.

The drop down items are populated from a database, and each item has an associated GAC value. The remaining inputs are user supplied and all the inputs including the drop down item and its value are is stored in a different table in the database.

## Autocomplete Field For 'city' Based On 'state'?

Dec 29, 2010

Here is what I'm envisioning: The user selects a state, then in the 'Cities' box, he starts typing the name of his city. However, it autocompletes the name for him based on the state he chose. So if he chose California and started typing in "Los Angeles", it would autocomplete "Los Angeles" for him. Does that make sense? Is there a script out there that can do this?

## Changing Hidden Field Value Based On Selected Option

Aug 25, 2009

how to Change a Hidden Fields Name based on selected option. The hidden fields name is sent off and I need to change the name depending on what option they select. For if they select MyList the hidden field name needs to be SelectLists[40] or if they select testlist the hidden field name needs to be SelectLists[41]. This is probably way, way off but I've done this and it doesn't work.

[Code]....