I have created an HTML web app in google script this works like a calculator, This app works fine if I add the input in descending order however if I skip the order and update in put data numbers randomly in any column then I am not getting the output properly
Example:- update the numbers in box number 4 and 5 then update in box number 1 you will find the differences in total numbers
Please refer the attached sheet for detailed script
Project Name- Project Proposal Form
$("#rTpe1").keyup(function(e){
$("#rFor1").val(this.value * $("#PerHourRate1").val());
$("#rFor3").val( Number($("#rFor1").val()) +Number($("#rFor2").val()))
});
$("#rTpe2").keyup(function(e){
$("#rFor2").val(this.value * $("#PerHourRate2").val());
$("#rFor3").val( Number($("#rFor1").val()) + Number($("#rFor2").val()))
});
$("#rTpe12").keyup(function(e){
$("#rFor12").val(this.value * $("#PerHourRate3").val());
$("#rFor3").val( Number($("#rFor1").val()) + Number($("#rFor2").val())+ Number($("#rFor12").val()))
});
$("#rTpe13").keyup(function(e){
$("#rFor13").val(this.value * $("#PerHourRate4").val());
$("#rFor3").val( Number($("#rFor1").val()) + Number($("#rFor2").val())+ Number($("#rFor12").val())+ Number($("#rFor13").val()))
});
I could be wrong, but I think that's the main culprit:
If your work your way top to bottom, the output in '#rFor3' is not affected. For example, if you enter values in the first field ('#rTpe1'), this statement
Number($("#rFor2").val()))
will evaluate to '0' because '#rFor2' probably contains an empty string at this point and Number("") will get you a zero. Because all subsequent input fields reference the results of previous calculations ('rTpe2' references 'rFor1', 'rTpe12' references both 'rFor1' and 'rFor2', etc), the sum will come out as correct.
Now consider the reverse scenario. For simplicity, let's make all your rates equal to 1. If you enter the value of '5' into 'rTpe12', the value of 'rFor3' will be
Number("") + Number("") + Number(5*1) == 5; //the first two inputs will contain empty strings at this point
The output of '#rFor3' would be 5. If you go up a step and enter the value of '2' into 'rTpe2', the value of the 'rFor3' output will change to
Number("") + Number(2*1) == 2; the first input will contain an empty string.
The code is not easy to understand, so even if this solution doesn't work for you, consider caching your DOM elements to improve performance and make your code more readable. Currently, you are using jQuery selectors to search the DOM over and over again, which is a serious performance drag. You could also store your calculated value as a variable and simply add values to it instead of recalculating on each input. For example
$('document').ready(function(){
var total = 0;
var input1 = $('#input1');
var input2 = $('#input1');
var input3 = $('#input1');
var output = $('#output');
input1.keyup(function(e){
var value = Number(this.value);
sum += value;
output.val(sum);
});
});
Related
http://live.datatables.net/dalogaci/1/edit
I have an amount of money to be dispersed and am using DataTables to display a list of people and allow entry of an amount next to each person (their share of the disbursement). I want to provide a running total of the amount entered into the table so I can warn when the total to be dispersed has been reached or passed.
Kind regards,
Glyn
You can use the following approach.
In my case, I display the running total in a <div>, rather than an input box, as the value is only for display purposes:
<div id="showsum">Grand Total: $0.00</div>
The end result:
The script for this - which I have tried to explain with comments in the code:
<script type="text/javascript">
// define the table variable here so the doSum()
// function will have access to it, when needed:
var table;
// reads each value from the final column in the table, checks
// if the value is a number (as opposed to blank), and then
// keeps a running total. Ensure we round fractions of pennies
// as needed.
//
// When handling money, use a big number library - see this:
// https://stackoverflow.com/questions/1458633/how-to-deal-with-floating-point-number-precision-in-javascript
//
function doSum() {
//var foop = table.columns(5).nodes().to$();
var sum = 0.0;
// this gets each node (cell) in the final column:
table.columns(5).nodes().to$()[0].forEach(function (item) {
// see if the display value is a number (i.e. not blank):
var amt = parseFloat($('input', item ).val());
if (!isNaN(amt)) {
sum += amt;
}
});
// round and display to 2 decimal places:
sum = (Math.round((sum + Number.EPSILON) * 100) / 100).toFixed(2);
$('#showsum').text("Grand Total: $" + sum);
}
$(document).ready(function() {
table = $('#example').DataTable( {
"columnDefs": [ {
"targets": 5,
"data": function ( row, type, val, meta ) {
// note the use of onchange="doSum()" in the following:
return '<input type="number" min="0" max="99999.99" step=".01" placeholder="0.00" onchange="doSum()">';
}
} ]
} );
} );
</script>
For a change to be added to the grand total, you have to hit "enter", or click outside of the input field, if you type the value in manually.
Because you are dealing with money, the code should really be using a "big number" format to eliminate the risk of inaccuracies in fractions of pennies (due to limitations in floating point arithmetic). For example see here.
Final note: I see this question was down-voted. I think that may have been because you only link to your demo code, instead of showing the relevant parts in the question itself. The link to the demo is useful - but showing code in the question itself is generally a "must-do", I think.
I have a datatable with 10 columns which are grouped in 4:4:2 manner. Now the first two groups(of 4) are fixed while the last 2 can be added to any of the groups(single or both at a time) based on a condition.
Is there a way to set indexes for columns so that they can be ordered based on a condition ?
I see that Primefaces reorder using drag n drop gives the kind of result Im looking for except I want the reordering to be programmable and set before the table is displayed.
I had basically the same problem: after allowing the user to rearrange columns, it is easy to save the arrangement into a cookie, but how to restore the order a day later?
As far as I know, there are no primefaces method to this but can be hacked with a little javascript. (I tried with primefaces 6.0)
1) Give all the columns unique styleClasses, like:
styleClass="mystyle col0"
styleClass="mystyle col1"
styleClass="mystyle col2"
...
2) Convert the styleClass strings into valid css selectors, and store the required order of columns as an order of those, like:
".mystyle.col2,.mystyle.col0,.mystyle.col1"
Put it into a cookie, or store and get back as you like.
3) Write a javascript function to rearrange the cells into the required order:
function reorder() {
var o = getCookie('orderString');
var a = o.split(",");
for (var i = a.length - 1; i >= 0; i--) {
$(a[i]).each(function() {
$(this).prependTo($(this).parent())
});
}
}
function getCookie(name) {
var value = "; " + document.cookie;
var parts = value.split("; " + name + "=");
if (parts.length === 2)
return parts.pop().split(";").shift();
}
(Don't use EL expressions to get back the order string from a backing bean, because it evaluates on page render, so won't update if the user rearranges the columns again.)
4) Execute reorder() "every time you need it".
You'll certainly need it on page loads:
$(document).ready(function() {
reorder();
});
but also on paging events, so add something like this:
<p:ajax event="page" oncomplete="reorder();" />
(And perhaps other times I've not met yet.)
I'm generating a table using xslt, but for this question I'll keep that side out of it, as it relates more to the actual generated structure of a html table.
What I do is make a vertical table as follows, which suits the layout needed for the data concerned that originated in a spreadsheet. Example is contrived for brevity, actual data fields contain lengthy strings and many more fields.
Title: something or rather bla bla
Description: very long desription
Field1: asdfasdfasdfsdfsd
Field2: asdfasfasdfasdfsdfjasdlfksdjaflk
Title: another title
Description: another description
Field1:
Field2: my previous field was blank but this one is not, anyways
etc.
The only way so far I found to generate such a html table is using repeating tags for every field and every record e.g.:
<tr><th>Title</th><td>something or rather bla bla</td></tr>
<tr><th>Description</th><td>very long desription</td></tr>
...
<tr><th>Title</th><td>another title</td></tr>
<tr><th>Description</th><td>another description</td></tr>
...
Of course this is semantically incorrect but produces correct visual layout. I need it to be semantically correct html, as that's the only sane way of later attaching a filtering javascript facility.
The following correct semantically produces an extremely wide table with a single set of field headers on the left:
<tr><th>Title</th><td>something or rather bla bla</td><td>another title</td></tr>
<tr><th>Description</th><td>very long desription</td><td>another description</td></tr>
...
So to summarise, need a html table (or other html structure) where it's one record under another (visually) with repeating field headers, but the field headers must not be repeated in actual code because that would wreck any record based filtering to be added later on.
Yo. Thanks for updating your question, and including some code. Typically you'd also post what you've tried to correct this issue - but I'm satisfied enough with this post.
Since you want the repeating headers in vertical layout (not something I've seen often, but I can understand the desire), you don't have to modify the HTML formatting, just use a bit more JavaScript to figure it out. I haven't gone through and checked to see if I'm doing things efficiently (I'm probably not, since there are so many loops), but in my testing the following can attach to a vertical table and filter using a couple variables to indicate how many rows there are in each entry.
Firstly, here's the HTML I'm testing this one with. Notice I have a div with the id of filters, and each of my filter inputs has a custom attribute named filter that matches the header of the rows they are supposed to filter:
<div id='filters'>
Title: <input filter='Title'><br>
Desc: <input filter='Description'>
</div>
<table>
<tr><th>Title</th><td>abcd</td></tr>
<tr><th>Description</th><td>efgh</td></tr>
<tr><th>Title</th><td>ijkl</td></tr>
<tr><th>Description</th><td>mnop</td></tr>
<tr><th>Title</th><td>ijkl</td></tr>
<tr><th>Description</th><td>mdep</td></tr>
<tr><th>Title</th><td>ijkl</td></tr>
<tr><th>Description</th><td>mnop</td></tr>
<tr><th>Title</th><td>ijkl</td></tr>
<tr><th>Description</th><td>mnop</td></tr>
</table>
Here are the variables I use at the start:
var filterTable = $('table');
var rowsPerEntry = 2;
var totalEntries = filterTable.find('tbody tr').size() / rowsPerEntry;
var currentEntryNumber = 1;
var currentRowInEntry = 0;
And this little loop will add a class for each entry (based on the rowsPerEntry as seen above) to group the rows together (this way all rows for an entry can be selected together with a class selector in jQuery):
filterTable.find('tbody tr').each(function(){
$(this).addClass('entry' + currentEntryNumber);
currentRowInEntry += 1;
if(currentRowInEntry == rowsPerEntry){
currentRowInEntry = 0;
currentEntryNumber += 1;
}
});
And the magic; on keyup for the filters run a loop through the total number of entries, then a nested loop through the filters to determine if that entry does not match either filter's input. If either field for the entry does not match the corresponding filter value, then we add the entry number to our hide array and move along. Once we've determined which entries should be hidden, we can show all of the entries, and hide the specific ones that should be hidden:
$('#filters input').keyup(function(){
var hide = [];
for(var i = 0; i < totalEntries; i++){
var entryNumber = i + 1;
if($.inArray(entryNumber, hide) == -1){
$('#filters input').each(function(){
var val = $(this).val().toLowerCase();
var fHeader = $(this).attr('filter');
var fRow = $('.entry' + entryNumber + ' th:contains(' + fHeader + ')').closest('tr');
if(fRow.find('td').text().toLowerCase().indexOf(val) == -1){
hide.push(entryNumber);
return false;
}
});
}
}
filterTable.find('tbody tr').show();
$.each(hide, function(k, v){
filterTable.find('.entry' + v).hide();
});
});
It's no masterpiece, but I hope it'll get you started down the right path.
Here's a fiddle too: https://jsfiddle.net/bzjyfejc/
I'm trying to create a flash application that will keep track of user generated values. The app should basically allow the user to input the name of the item and it's cost. The total costs should then be added up to show a total value to the user. I can probably figure out how to add the values together, but I'm not really sure how to allow the user to create a list and then allow the user to save it. Can anyone point me towards a tutorial or point me in the right direction?
I am using variables to add user inputed numbers to come up with a total. The first problem is that actionscript 3.0 does not allow variables for texts. I just converted it to 2.0 to fix this. The second problem, is when I test the app and put in my values and click submit, I get NaN in the total values field. Is there a reason why it wouldn't add the values?
Here is the code I used for the submit button:
on (release) {
total = Number(rent) + Number(food) + Number(travel) + Number(entertainment) + Number(bills);
}
Am I missing anything?
Can I give the input text instance names and then give them variables? How are some ways to go about this?
Thanks for the help!
Have an object array, say for example
var stack:Array = new Array();
Then push the item name and it's cost to that array when user inputs, like
stack.push({item:AAA, cost:xx});
So that you can generate the list whenever you want with that array.
You have to see how this works in code. A list in actionscript could be stored inside an array, vector, dictionary or even an Object.
Var myList:Array = [];
myList.push({name: "item 1", cost: 5 });
myList.push({name: "item 2", cost: 7.5 });
If you want to grab the 'product' of "item 1" from the list, you have to create a function for that, lets call it getProductByName
function getProductByName(name:String):Object
{
for each(var product:Object in myList)
{
if (product.name === name) return product;
}
return null; // no match found
}
You can call that function like this:
var product = getProductByName("item 1");
trace(product.cost); // 5
And you can alter the product, so lets make it more expensive
product.cost += 1;
trace(product.cost); // 6
Have fun! If you are using classes, you would create one for the product, with public name and cost, and in that case you'de better use a vector, to ensure working with the right type.
This is what fixed the issue for me in action script 3.0:
myButton.addEventListener(MouseEvent.CLICK, addThem);
function addThem(e:MouseEvent)
{
totalField.text = String ( Number(field1.text) + Number(field2.text) + ....);
}
I also had to name the instances appropriately.
I'm attempting to alter the contents of certain parts of a HTML form through usage of the URL. For a text field, I'm aware that this will suffice,
http://<domain>?fieldname=ping&anotherfield=pong
On the form there are multiple select braces (drop down boxes); Is it possible to pick an int or string value through the url for this?
There seems to be little documentation on this (or even people trying to do the same)...
You haven't specified how you want to do this, but I'll assume that you want to use JavaScript:
To get a value from QueryString:
getQueryStringArgument = function(key) {
var hu = window.location.search.substring(1);
var gy = hu.split("&");
for (i = 0; i < gy.length; i++) {
var ft = gy[i].split("=");
if (ft[0] == key)
return ft[1];
}
}
To set the selected value of the select list:
document.getElementById("sel").value = getQueryStringArgument("id");
For a text field, I'm aware that this will suffice
No, it won't (at least, not in a generic way).
For a text field, the default value is specified by the value attribute. There might be a server side script that populates it based on query string data, but there doesn't have to be.
On the form there are multiple select braces (drop down boxes); Is it possible to pick an int or string value through the url for this?
Again, this requires an attribute to be set (selected on <option>), and that could (again) be set by a server side script based on the query string data.