How can I access a select in an HTML table cell - javascript

I added a select to a column of table cells with an ID. Using console.log I can see the select with the ID I gave it but when I try to set the value of the box using the ID I get a NULL reference error. What would the correct reference be for the box? Thanks.
JavaScript
function GetProc_Responce(r, responce) {
var table = "<tr><th>Emp</th><th>RA</th><th>PI</th><th>First Name</th><th>Last Name</th><th>Is A</th><th>Date Created</th><th>Date Modified</th></tr>";
strXml = new XMLSerializer().serializeToString(responce);
//console.log("returnString: " + strXml);
var oParser = new DOMParser();
oDOM = oParser.parseFromString(strXml, "text/xml");
//console.log(oDOM.getElementsByTagName("EmployeeID").length);
var l = oDOM.getElementsByTagName("EmployeeID").length;
for (i = 0; i <= l - 1; i++) {
a = oDOM.getElementsByTagName("Emp")[i];
_Emp = a.childNodes[0].nodeValue;
b = oDOM.getElementsByTagName("RA")[i];
_RA = b.childNodes[0].nodeValue;
c = oDOM.getElementsByTagName("PI")[i];
_PI = c.childNodes[0].nodeValue;
d = oDOM.getElementsByTagName("FirstName")[i];
_FirstName = d.childNodes[0].nodeValue;
e = oDOM.getElementsByTagName("LastName")[i];
_LastName = e.childNodes[0].nodeValue;
f = oDOM.getElementsByTagName("IsA")[i];
_IsA = f.childNodes[0].nodeValue;
g = oDOM.getElementsByTagName("DateCreated")[i];
_DateCreated = g.childNodes[0].nodeValue;
h = oDOM.getElementsByTagName("DateModified")[i];
_DateModified = h.childNodes[0].nodeValue;
table += "<tr><td>" +
a.childNodes[0].nodeValue + "</td><td>" +
b.childNodes[0].nodeValue + "</td><td>" +
c.childNodes[0].nodeValue + "</td><td>" +
d.childNodes[0].nodeValue + "</td><td>" +
e.childNodes[0].nodeValue + "</td><td>" +
//f.childNodes[0].nodeValue + "</td><td>" +
"<select id=\"s1\"><option value=\"0\">0</option><option value=\"1\">1</option></select>" + "</td><td>" +
g.childNodes[0].nodeValue + "</td><td>" +
h.childNodes[0].nodeValue + "</td></tr>";
document.getElementById('Proc').rows.item(3).cells(5).value = 1;
//OR
document.getElementById('s1').selectedValue = 1;
//NEITHER ONE WORKS
}
document.getElementById("Proc").innerHTML = table;
console.log(document.getElementById('Proc').rows(3).cells(5));
}
HTML
<div><center>
<table id="Proc"></table>
</center></div>

You must assign unique id values. Your code assigns all of them the id value s1 which is invalid in HTML.
Change your code as follows to assign s0, s1, s2 ... etc. For clarity I don't repeat the code that is not concerned:
for (i = 0; i <= l - 1; i++)
{
// ...
table += "<tr><td>" +
// ...
e.childNodes[0].nodeValue + "</td><td>" +
"<select id=\"s" + i + "\"><option value=\"0\">0</option><option value=\"1\">1</option></select>" + "</td><td>" +
// ...
}
You can access one of the select elements by its id with getElementById:
var element = document.getElementById('s' + i);
Where i is a number from 0 to the last one assigned in the loop.
You can get or set the value of a select element via its value attribute. For example, to set its value to 1, do:
document.getElementById('s' + i).value = '1';

Here we'll get div object
var div = document.getElementById('test');
Here we'll get table object
var table = div.getElementsByTagName('table')[0];
Here we'll add new select to td
table.rows[0].cells[0].innerHTML += '<select id="s2"></select>';
Search existed select (with id="s1")
var select_1 = table.rows[0].cells[0].getElementsByTagName('select')[0];
console.log(select_1);
Search all selects in td
var select_array = table.rows[0].cells[0].getElementsByTagName('select');
console.log(select_array);
https://jsfiddle.net/e59dzhsy/

document.getElementById('Proc').rows.item(3).cells(5) references a td, which does not have a value.
document.getElementById('s1') references the select box
you want document.getElementById('Proc').rows.item(3).cells(5).children[0] to reference the select
A better method would be to use some of the built in tag finding functions such as document.getElementById('Proc').rows[3].getElementsByTagName('select')[0]. Then you don't have to deal with what column the select is in. Of course, if you have more than one select on the row, then you'll need to do something different. At that point, I'd suggest adding class names to your selects so you can use document.getElementById('Proc').rows[3].getElementsByClassName('select1')[0]

Related

How to get on row click value from different cells?

Actually i'm trying to set value of a td inside a table in a variable but i'm getting the
row.getElementByTagName is not a function
at selectRow (user.aspx?ID=2:47)
The function is called on tr onclick and has as attribute this
While now i just would show the value of 2nd and 3rd td in an alert.
Here is the script
function selectRow(row) {
var firstInput = row.getElementsByTagName('input')[0];
var user = row.getElementByTagName('td')[1];
var soft = row.getElementByTagName('td')[2];
firstInput.checked = !firstInput.checked;
if (firstInput.checked) {
alert("AGGIUNGI " + user + " " + soft);
//document.getElementById('frame').src = "user.aspx?ADDUSER=" + user + "&SOFT=" + soft;
} else {
//document.getElementById('frame').src = "user.aspx?DELUSER=" + user + "&SOFT=" + soft;
alert("ELIMINA " + user + " " + soft);
}
}
You can do this in jQuery
var tds = $(row).find("td");
var user = tds.get(1);
var soft = tds.get(2);

JQuery mobile list prepend

trying to prepend my list in jquery mobile but I just can't get the divider to be on top of the most recent item added to the listview.
I've tried prepending the item that's being added but it then switches the divider to the bottom.
function loadScanItems(tx, rs) {
var rowOutput = "";
var $scanItems = $('#scanItems');
$scanItems.empty();
var bubbleCount = 0;
for (var i = 0; i < rs.rows.length; i++) {
bubbleCount = bubbleCount + 1;
//rowOutput += renderScan(rs.rows.item(i));
var row = rs.rows.item(i)
var now = row.added_on;
var date = get_date(now);
rowOutput += '<li data-icon="false"><div class="ui-grid-b"><div class="ui-block-a" style="width:50%"><h3>Su # ' + row.sunum + '</h3><p> Bin # ' + row.binnum + '</p></div><p class="ui-li-aside"><strong>' + date + '</strong></p><div class="ui-block-b" style="width:20%"></div><div class="ui-block-c" style="width:25%"><br><p>User: ' + row.userid + '</p></div></div></li>';
// rowOutput += '<li>' + row.sunum + row.binnum+ "<a href='javascript:void(0);' onclick='webdb.deleteScan(" + row.ID + ");'>Delete</a></li>";
}
$scanItems.append('<li data-role="list-divider">Scanned Items <span class="ui-li-count">' + bubbleCount + '</span></li>').listview('refresh');
$scanItems.append(rowOutput).listview('refresh');
}
The code is above with it correctly formatted with the divider on top but the list items being appended to the bottom instead of prepended to the top.
Thanks!
The problem is that your are building a string with all the scan items. That string already has an order so whether you prepend or append makes no difference. Try this simple change.
Change:
rowOutput += '<li data-icon="false">...</li>';
to:
rowOutput = '<li data-icon="false">...</li>' + rowOutput;
This will put your rowOutput string in the correct order before appending to the listview.
Here is a working DEMO

JavaScript & HTML - Modifying dynamically created subclasses within a dynamically created class

Problem:
I have a dynamically created HTML table, that is used for filling out time sheets. It is created programmatically - there is no formal control. The design is a mix of CSS with text boxes being created through JavaScript. Now each 'row' of this table is in a class called 'divRow', and is separated from the others by having 'r' and the number of the row assigned to it as the class (i.e 'divRow r1', 'divRow r2', etc.).
Within each of these 'divRow's, I have cells in a class called 'divCell cc'. These do not have any identifiers in the class name. At the very last cell, I have a 'Total' column, which ideally calculates the total of the row and then adds it into a dynamically created text box.
What I have at the moment:
// Function to create textboxes on each of the table cells.
$(document).on("click", ".cc", function(){
var c = this;
if(($(c).children().length) === 0) {
var cellval = "";
if ($(c).text()) {
cellval = $(this).text();
if(cellval.length === 0) {
cellval = $(this).find('.tbltxt').val();
}
}
var twidth = $(c).width() + 21;
var tid= 't' + c.id;
if(tid.indexOf('x17') >= 0){
var thtml = "<input id='t" + c.id + "' type='text' Class='tbltxt' style='width: " + twidth + "px;' readonly />";
eval(spproc(spcol(t[getx(c.id)],thtml,tid,twidth)));
//var getRow = $(this).parent().attr('class'); - this gets the 'divRow r#' that it is currently on.
var arr = document.getElementsByClassName('cc');
var tot = 0;
for(var i = 0; i<arr.length; i++){
if(parseInt(arr[i].innerHTML) > 0){
tot += parseInt(arr[i].innerHTML);}
}
$('#t' + c.id).focus();
$(this).children().val(tot);
}else{
var thtml = "<input id='t" + c.id + "' type='text' Class='tbltxt' style='width: " + twidth + "px;' />";
eval(spproc(spcol(t[getx(c.id)],thtml,tid,twidth)));
$('#t' + c.id).focus();
$('#t' + c.id).val(cellval);
}}
});
As you can see, when the user clicks on the 'divCell cc', it creates a text box if one is not present. If the user clicks on the 17th column ('x17'), then it runs the for loop, and assigns the value of the total to the text box.
What I need to happen:
So what happens now is that the last cell sums the total of each cell that has a value. However, they are not row-dependent. I need it to calculate based on the row that it is currently 'on'. So if I'm calculating the 2nd row, I don't want the sum of the first, second and third being entered into the total, I just want the 2nd rows' values summed.
What I've tried:
I've tried looping through and using the 'divRow r#' number to try and get the items in the array that end in that number. (cells are given an id of 'x#y#' and the text boxes assigned to those cells are given an id of 'tx#y#').
I've tried getting elements by the cell class name, and then getting their parent class and sorting by that; didn't get far though, keep running into simple errors.
Let me know if you need more explanation.
Cheers,
Dee.
For anyone else that ever runs into this issue. I got it. I put the elements by the row class into an array, and then using that array, I got the childNodes from the row class. The reason the variable 'i' starts at 2 and not 0 is because I have 2 fields that are not counted in the TimeSheet table (Jobcode and description). It's working great now.
Cheers.
$(document).on("click", ".cc", function(){
var c = this;
if(($(c).children().length) === 0) {
var cellval = "";
if ($(c).text()) {
cellval = $(this).text();
if(cellval.length === 0) {
cellval = $(this).find('.tbltxt').val();
}
}
var twidth = $(c).width() + 21;
var tid= 't' + c.id;
if(tid.indexOf('x17') >= 0){
var thtml = "<input id='t" + c.id + "' type='text' Class='tbltxt' style='width: " + twidth + "px;' readonly />";
eval(spproc(spcol(t[getx(c.id)],thtml,tid,twidth)));
// Get current row that has focus
var getRow = $(this).parent().attr('class');
// Get the row number for passing through to the next statement
var rowPos = getRow.split('r', 5)[1];
// Get all the elements of the row class and assign them to the rowClass array
var rowClass = document.getElementsByClassName('r' + rowPos)
// Given the rowClass, get the children of the row class and assign them to the new array.
var arr = rowClass.item(0).childNodes
// Initialize the 'total' variable, and give it a value of 0
var tot = 0;
// Begin for loop, give 'i' the value of 2 so it starts from the 3rd index (avoid the Req Code and Description part of the table).
for(var i = 2; i<arr.length; i++){
if(parseInt(arr[i].innerHTML) > 0){
tot += parseInt(arr[i].innerHTML);}
}
// Assign focus to the 'Total' cell
$('#t' + c.id).focus();
// Assign the 'total' variable to the textbox that is dynamically created on the click.
$(this).children().val(tot);
}else{
var thtml = "<input id='t" + c.id + "' type='text' Class='tbltxt' style='width: " + twidth + "px;' />";
eval(spproc(spcol(t[getx(c.id)],thtml,tid,twidth)));
$('#t' + c.id).focus();
$('#t' + c.id).val(cellval);
}}
});

Creating an array object within an array object

I have an array object that needs another array object added to it. So i have details of the object that need the rows in a table to be added to that object as an array. I have tried a few suggestions on stackoverflow , but none seems to be working, and i am not sure this has something to do with the fact that the table is created by js.
// Adding Cosignment number
$('#parcel-overview').append(
// Add main tables which will display the added packages
'<table border="1">' +
'<thead><tr><th>Packages</th><th>Weight</th> <th>Vol Weight</th><th>Charge Weight</th> <th>Price</th></tr></thead><tbody id="parcels-added-overview"></tbody> ' +
'</table>'
);
for (var i = 0; i < packageNum; i++) {
var ii = (i + 1).toString();
// Working out volemetric weight
wei = $('#added-parcels #weighting-' + ii + ' input').val();
len = $('#added-parcels #lengthing-' + ii + ' input').val();
wid = $('#added-parcels #widthing-' + ii + ' input').val();
hei = $('#added-parcels #heighting-' + ii + ' input').val();
//Calculating Volumetric weight
tot = ((len * wid * hei) / 5000).toFixed(1);
pri = (tot * 23).toFixed(2);
chr = (tot * 12).toFixed(2);
$('#parcels-added-overview').append(
'<tr>' +
'<td class="par-id">' + (i + 1).toString() + '</td>' +
'<td class="par-weight">' + wei.toString() + ' kg\'s</td>' +
'<td class="par-vol-weight">' + tot.toString() + ' kg\'s</td>' +
'<td class="par-charge-weight">R ' + chr.toString() + '</td>' +
'<td class="par-price">R ' + pri.toString() + ' </td>' +
'</tr>'
);
}
I then want to add the values of that table that have been added dynamically to an object array that is then added to the primary object array.
var parcelObj = new Object();
$.each($('#parcels-added-overview tr'),function (index) {
parcelObj.parcelId = $(this).children('.par-id').text();
parcelObj.totalWeight = $(this).children('.par-weight').text();
parcelObj.volWeight = $(this).children('.par-vol-weight').text();
parcelObj.chargeWeight = $(this).children('.par-charge-weight').text();
parcelObj.overallPrice = $(this).children('.par-price').text();
parcelsArr.push(parcelObj);
});
consignmentObj.parcels = parcelsArr;
consignmentsArr.push(consignmentObj);
I might be a n00b , but this code (although i think its fairly verbose ) should work.
Does the $(this).children not identify directly on each() row that it is iterating over?
When i add console.log(consignmentsArr); i get the array within the object as it should be but the values for the parcel object are just repeating the last row of the table.
1: Object
deliName: ""
deliStreet: ""
docType: "Document"
insurance: "None"
parcels: Array[2]
0: Object
chargeValue:"R34.43"
overallPrice:"R43.54"
parcelId:"2"
totalWeight:"65 kg's"
volWeight:"63 kg's"
1: Object
chargeValue:"R34.43"
overallPrice:"R43.54"
parcelId:"2"
totalWeight:"65 kg's"
volWeight:"63 kg's"
Why can I not get the first row values to be added to parcels[0]?
Thanks
Try to declare parcelObj object inside the function.
$.each($('#parcels-added-overview tr'),function (index) {
var parcelObj = new Object();
parcelObj.parcelId = $(this).children('.par-id').text();
parcelObj.totalWeight = $(this).children('.par-weight').text();
parcelObj.volWeight = $(this).children('.par-vol-weight').text();
parcelObj.chargeWeight = $(this).children('.par-charge-weight').text();
parcelObj.overallPrice = $(this).children('.par-price').text();
parcelsArr.push(parcelObj);
});
consignmentObj.parcels = parcelsArr;
consignmentsArr.push(consignmentObj);

How to dynamically assign an id to an image

var intFields = 0;
var maxFields = 10;
function addElement() {
"use strict";
var i, intVal, contentID, newTBDiv, message = null;
intVal = document.getElementById('add').value;
contentID = document.getElementById('content');
message = document.getElementById('message');
if (intFields !== 0) {
for (i = 1; i <= intFields; i++) {
contentID.removeChild(document.getElementById('strText' + i));
}
intFields = 0;
}
if (intVal <= maxFields) {
for (i = 1; i <= intVal; i++) {
intFields = i;
newTBDiv = document.createElement('div');
newTBDiv.setAttribute('id', 'strText' + intFields);
newTBDiv.innerHTML = "<input placeholder='recipient" + intFields + "#email.com' type='text' name='" + intFields + "'/><a href='javascript:removeElement();'><img id='strImg + " + intFields + "' src='images/minus.png' alt='Add A Field'/></a><input type='text' value='" + newTBDiv.id + "'/>";
contentID.appendChild(newTBDiv);
message.innerHTML = "Successfully added " + intFields + " fields.";
}
} else {
for (i = 1; i <= maxFields; i++) {
intFields = i;
newTBDiv = document.createElement('div');
newTBDiv.setAttribute('id', 'strText' + intFields);
newTBDiv.innerHTML = "<input placeholder='recipient" + intFields + "#email.com' type='text' name='" + intFields + "'/><a href='javascript:removeElement();'><img id='strImg + " + intFields + "' src='images/minus.png' alt='Add A Field'/></a><input type='text' value='" + newTBDiv.id + "'/>";
contentID.appendChild(newTBDiv);
message.innerHTML = "Unable to create more than 10 receipient fields!";
}
}
}
My script here dynamically adds up to 10 fields where users will be able to enter an email address and to the right of the text box i add an image of a minus sign that calls another script. I'm having trouble working out how to assign and keep track of the minus signs. I need to be able to have the minus sign script's recognize the text box it is by and remove it. I can write the remove script easily enough but I'm unsure of how to tell the image which text box to remove. Any help, suggestions, or comments are greatly appreciated.
Thanks,
Nick S.
You can add a class to the field called minus and then check through like that. I would suggest using jquery for this.
To add the class
$("#element").addClass("minus");
To remove all elements with that class
$("body input").each(function (i) {
if($(this).attr("class") == "minus"){
$(this).remove();
}
});
The two best options, imo, would be 1) DOM-traversal, or 2) manipulating ID fragments.
Under the first way, you would pass a reference to the element where the event takes place (the minus sign) and then navigate the DOM from there to the get the appropriate text box (in jQuery you could use $(this).prev(), for example).
Under the second way, you would assign a prefix or a suffix to the ID of the triggering element (the minus sign), and the same prefix or suffix to the target element (the text box). You can then (again) generate the appropriate ID for your target element by simple string manipulation of the ID from the triggering element.
Is that sufficient to get you started?
Try adding a class to the field and the same class to the minus sign.
So add this right after the setAttribute id,
newTBDiv.setAttribute('class', 'field' + intFields);
then just remove any elements that have that class.

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