Jquery - Get previous value row in table - javascript

i have dynamic simple table like:
I try to get previous value cell when i click edit button.
Example: when i click first edit button that will alert('a1')
when i click second edit button that will alert('a2')
i try with
$('.edit').click(function(){
alert($(this).parents('tr').prev().children().eq(1).text());
});
it's working well with first edit button because previous row that has one row.
And it't not working with second edit button.
How can i do it (by dynamic previous row) http://jsfiddle.net/bWjbj/
ps: i'm working with next row with
alert($(this).parents('tr').nextAll(':eq(' + ($(this).parent().siblings().eq(0).attr("rowspan")-1) + ')').children().eq(1).text());

http://jsfiddle.net/mblase75/XGdkD/
The problem is that for the second Edit button, the previous table row isn't the row you want -- you want the row two more before that, because that's where the rowspans begin.
Or, to be general: you want the table row belonging to the previous Edit button. In the case of the first edit button, though, you just want the previous row.
So, in code:
$('.edit').click(function () {
var idx = $('.edit').index(this); // which Edit button is this?
if (idx > 0) { // first button
var $tr = $('.edit').eq(idx-1).closest('tr'); // previous row
} else { // not first button
var $tr = $(this).closest('tr').prev('tr'); // previous Edit button's row
}
var $td = $tr.find('td:nth-child(2)'); // second <td> of the row
alert($td.text());
});
Compact version of the same code:
$('.edit').click(function () {
var idx = $('.edit').index(this),
$tr = (idx) ? $('.edit').eq(idx-1).closest('tr') : $(this).closest('tr').prev('tr'),
$td = $tr.find('td:nth-child(2)');
alert($td.text());
});

Related

Finding cell value of dynamically generated table row

I am trying to delete an array record based on what table row is clicked.
This function adds a button to a row and appends it to the end of the table
function addButtons(table, tr){
var delBtn = document.createElement("button");
delBtn.innerHTML = "×"
delBtn.onclick = deleteBu(tr)
tr.appendChild(delBtn);
table.children[1].appendChild(tr)
}
The function below is meant to delete an array record based on the row clicked. For example, in row 1, the first cell is "45". Based on this, the record is deleted if it is found in the array storageProblem.
Here is what I have so far. The issue is because I am using tr as the action listener, so simply clicking on the row will delete the row, it is not localized to the button. But using tr is the only way I have found to get the first td of a row.
function deleteBu(tr){
$(tr).click(function(){
var value=$(this).find('td:first').html();
for(i = 0; i < storageProblem.length; i++){
if(value == storageProblem[i][0]){
storageProblem.splice(i, 14)
loadCallProblemTable()
}
}
})
}
I'm not sure if I've understood your question right but maybe try this solution:
function deleteBu(x) {
var Index = $(x).closest('tr').index();
console.log("Row index: " + Index);
}

Javascript - Listener executing on assignment

So, I'm currently working on a HTML page that displays a table with an editable text box and a delete button for the row for every quote in a list. The list is fetched from a stored file, so I need to dynamically generate this table and its rows every time I fetch it. However, when this code runs, the table generated is empty, because when the listener is added, the delete row function executes and just removes the row right after it's added.
for (var i = 0; i < quotesArray.length; i++) {
//Insert a new row into the table.
var newQuoteRow = quoteList.insertRow(-1);
var cellOne = newQuoteRow.insertCell(0);
var cellTwo = newQuoteRow.insertCell(1);
//Insert editable text boxes for a quote into the row.
var quoteInput = document.createElement('input');
quoteInput.value = quotesArray[i];
quoteInput.className = "quote";
cellOne.appendChild(quoteInput);
//Put a delete button at the end of the row.
var deleteQuoteButton = document.createElement('button');
deleteQuoteButton.innerHTML = "x";
cellTwo.appendChild(deleteQuoteButton);
deleteQuoteButton.addEventListener('click', deleteCurrentQuoteRow(deleteQuoteButton));
}
});
}
function deleteCurrentQuoteRow(buttonToDelete) {
var currentRow = buttonToDelete.parentNode.parentNode; //get the grandparent node, which is the row containing the cell containing the button.
currentRow.parentNode.removeChild(currentRow); //delete the row in the table
}
From what I understand, this problem occurs because the function linked to in the addEventListener method has a parameter, which causes it to execute immediately instead of waiting for a click. However, I can't think of a way to implement this without passing the button being clicked as the parameter, because then I won't know which row to delete. How can I fix this so that the table will actually populate, and the delete button will actually delete a row?
Currently you are invoking the function deleteCurrentQuoteRow and assigning its return value which is undefined as event listener.
Use
deleteQuoteButton.addEventListener('click', function(){
deleteCurrentQuoteRow(this); //Here this refers to element which invoke the event
});
OR, You can modify the function deleteCurrentQuoteRow as
function deleteCurrentQuoteRow() {
var currentRow = this.parentNode.parentNode; //get the grandparent node, which is the row containing the cell containing the button.
currentRow.parentNode.removeChild(currentRow); //delete the row in the table
}
Then you can just pass the function reference as
deleteQuoteButton.addEventListener('click', deleteCurrentQuoteRow);

How to autoselect radio buttons in jQuery

I have a form that contains several rows of radio buttons. When a button is selected in the first row (only first row), I need the subsequent rows to be auto-selected one position over (to the right) from the previous selection until end of table is reached.
Result should look like this, after clicking on "MD" in the first row:
Desired Output
See JSFiddle Example Here
The solution should be relative-position-based if that makes any sense. The only element with consistent ID is the table ("#skuTable").
What I have so far is this (console logging to debug):
$("#skuTable tr").first().find("input:radio").on("click", function(){
var $this = $(this);
console.log($this);
console.log($this.position());
console.log($this.parents("tbody").children("tr:nth-child(2)").find("input:radio").first().prop('checked', true));
});
What that manages to do is select the first radio button on the following row. I need some help figuring out how to select the next radio button relative to the first one's position.
This is how I did it:
var rows = $("#skuTable tr");
rows.eq(0).find("input:radio").each(function(i) {
$(this).on("click", function() {
for(var m = 0, n = rows.length;m < n;m++) {
rows.eq(m).find("input:radio").eq(i + m).attr("checked", true);
}
});
});
DEMO: https://jsfiddle.net/Lnk9p55x/4/
one more solution:
$("#skuTable").find("input:radio").on("click", function(){
loop = 0;
$("input").prop("checked",false);
index = $(this).parent().index("td");
$.each($("table tbody tr"), function() {
$("table tbody tr:eq("+loop+")").find("td:eq("+index+")").find("input:radio").prop('checked', true);
index++;
loop++;
});
});
https://jsfiddle.net/Lnk9p55x/7/

Expand and collapse in table row

I have a table which is being generated from server side and it looks like this.
Now the requirement is to hide all the column of Category B, remove duplicate rows for Category A and show entries of corresponding entries of Category B in expand-collapse way. Each A1 Name Column cell will have a expand button and when it is clicked the entries of B columns of that row will be shown below that.
I'm able to hide B category and remove duplicate rows by
var hide_duplicate_row = function () {
var seen = {};
$('td:nth-child(2)').each(function () {
var txt = $(this).text();
if (seen[txt])
$(this).closest('tr').hide();
else
seen[txt] = true;
});
};
var show_only_head = function(){
$('td:nth-child(4),th:nth-child(4)').hide();
$('td:nth-child(3),th:nth-child(3)').hide();
}
hide_duplicate_row();
show_only_head();
Fiddle: http://jsfiddle.net/ME3kG/3/
but I'm stuck with the expand collapse part, how do I populate the B category's row data in this way? Any input on this will be appreciated, thanks.
Full table:
Desired table:
Here is the plan for this:
Goes through the table rows one by one:
$('table tr').each(function () {
On each row get the content you need:
var cell_3 = $("td:nth-child(3)", this).html(); // a3
var cell_4 = $("td:nth-child(4)", this).html(); // a4
While you are still processing the current row modify the A1 column like this:
$( "td:nth-child(1)", this ).append( '<div class="toggle">' + cell_3 + ' - ' + cell_4 + '</div>' );
Now you should have a newly generated DIV in each A1 column. You'll need to assign a toggle functionality on 'click' event and you should be done. The END.
It seems you are developing using jQuery and this is the reason to explain you the idea, not giving you the exact code. :-)
EDIT 1:
Here is the final code, according to the few specific requirements: http://jsfiddle.net/ME3kG/26/ and some formatting: http://jsfiddle.net/ME3kG/30/
Add a div in your td which is hidden onload and display it on click event

How to tell if a row contains cells with textbox with javascript

I have a table that is built dynamically from a user specified query to a database and I want to give the user the option to edit the data from the generated HTML table. When the user double clicks on the row containing the data they want to edit, I have a new row appear underneath it with textboxes for them to submit new values. Right now, when the user clicks double clicks two rows, both rows of textboxes remain in the table and I want to delete the first row before the second shows up. My question is, what is a good was to find table rows containing textboxes so that I can perhaps use JavaScript's deleteRow() function?
I'm generating rows like so:
function editRow(row) {
var table = document.getElementById("data");
var newRow = table.insertRow(row.rowIndex + 1);
var cell;
for (var i = 0; i < row.childNodes.length; i++) {
cell = newRow.insertCell(i);
textBox = document.createElement("input");
textBox.type = "text";
textBox.placeholder = row.childNodes[i].innerHTML;
textBox.style.textAlign = "center";
textBox.style.width = "90%";
cell.appendChild(textBox);
}
}
and the only way I can I can think of doing it is something like (pseudo code):
for all table rows
if row.childNodes.innerHTML contains 'input'
deleteRow(index)
Thanks for the help
You could use jQuery. Assuming row is a DOM element, this should work:
var textBoxes = $("input:text", row);
i guess the easiest option would be to add the created rows to an array. This way you simply have to delete the rows inside the array and not iterate through the whole table.
I ended up doing the following:
function editRow(row) {
var table = document.getElementById("data");
clearExistingTextBoxes(table);
...
}
function clearExistingTextBoxes(table) {
var tBoxRow = table.getElementsByTagName("input");
if (tBoxRow.length > 0) {
tBoxRow = tBoxRow[0].parentNode.parentNode;
table.deleteRow(tBoxRow.rowIndex);
}
}
Assuming I'm only going to be clearing one row at a time.

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