Extracting Data Of A Dynamic Html Table Using DOM?
Nov 4, 2011
I'm using DOM in javascript to extract data from a dynamically generated html table( table id ="tableId"). Each cell of the table includes an input field to get user input. The problem is below javascript returns "null" always when retrieving the input field value? What I'm doing wrong here?
var mytable = document.getElementById('tableId');
var mytablebody = mytable.getElementsByTagName("tbody")[0];
var myrow = mytablebody.getElementsByTagName("tr")[0];[code]....
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Jan 21, 2011
I want to parse data from tables in webpages , there are no problems when I parse regular HTML tables, but it seems to be impossible to get any data from dynamic pages that update themself automatically.how to extract data from dynamic web pages? My goal is to read webpages with an application written in java, parse the page and clean the data and store it in a database.
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Dec 9, 2011
I have a costestimatorslider using jquery ui slider as:
$(function() {
As you can see I can add the value from the slider ui.value without any problem.Now I would like to be able to ADD or Extract the$('.cost') value to other value as Total(total=parseInt($('#total').html());.) which is Sum of some other calculations stored in a HTML table cell in the page as:
I tried to do it by this way butFirstof all it doubled the value which makesense and it's wrong!, besides itcouldn'textract the cost from the total.
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Jun 7, 2010
I have a dynamic HTML table which gets populated by coldfusion and displayed in the page, I have a column called performace which holds numeric values. I need to select the top 3 best performace value in the column and then highlight the entire row in different colours (top 3 values for performance). Can any one help me in doing it?My server can run only Javascript and coldfusion, No Ajax/PHP.I need a complete set of code which such that I will add the script and it performs the calculating and highlighting part.
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Apr 17, 2010
Currently I have this web database app that I wrote in which I have a page with 3 tables. When I want to enter data into the table I currently select the table name from a drop down list and then have a javascript window open containing a form. The form is processed using php and oracle. The parent window which is the page containing the 3 tables then gets reloaded and, behold you can see a row contaiing the data underneath the choosen table. Have a picture in your mind of my setup?
Ok, what I would like is to try and eliminate the popup window. On each of the table headers I would like to have a button that when clicked, adds a row of input cells, say 6 for example . They should be able to have as many rows as they want. I would also like to add a submit button and a remove row button. And that is it.
From there I can handle the input of the multiple rows with php arrays and array splice to get the indexing I want. That is no problem. I have just never done anything dynamic and have very little javascript experience.
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Jul 23, 2010
I tried to add links to open local xml files in browser in a dynamic table cells. I tried all ways but I think I miss something. I can open them without table just by document.write(xmlfile location).
Here is my code.
function showResultsTable(searched, srchedname) {
// get the reference for the body
var mybody = document.getElementsByTagName("body")[0];
// creates a <table> element and a <tbody> element
mytable = document.createElement("table");
mytable.setAttribute('id', 'resulttable');
mytablebody = document.createElement("tbody");
// creating all cells
var mycurrent_cell = new Array();
for(var j = 0; j < srchedname.length; j++) {
// creates a <tr> element
mycurrent_row = document.createElement("tr");
mycurrent_cell[0] = document.createElement("td");
currenttext = document.createTextNode(j);
mycurrent_cell[0].appendChild(currenttext);
mycurrent_row.appendChild(mycurrent_cell[0]);
mycurrent_cell[1] = document.createElement("td");
link = document.createElement("a");
link.name = ""+srchedname[j]);
link.href = "C:\AAA\TestCasesList.xml";
mycurrent_cell[1].appendChild(link);
mycurrent_row.appendChild(mycurrent_cell[1]);
mycurrent_cell[2] = document.createElement("td");
currenttext = document.createTextNode(searched[j]);
mycurrent_cell[2].appendChild(currenttext);
mycurrent_row.appendChild(mycurrent_cell[2]);
// appends the row <tr> into <tbody>
mytablebody.appendChild(mycurrent_row);
}
// appends <tbody> into <table>
mytable.appendChild(mytablebody);
// appends <table> into <body>
mybody.appendChild(mytable);
// sets the border attribute of mytable to 2;
mytable.setAttribute("border", "2");
}
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Jun 7, 2010
I have a dynamic HTML table which gets populated by coldfusion and displayed, I have a column called performace which holds numeric values. I need to select the top 3 best performace value in the column and then highlight the entire rows in different colours. Can any one help me in doing it?
My server can run only Javascript and coldfusion, No Ajax/PHP.
Hint : Something like a code to highlight a <tr id=#idx#> with this ID = #idx#.
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Jul 19, 2010
Below is my Coding done. A dynamic HTML table is generated text boxes in table Rows(Dissable mode) with EDIT & DELETE buttons. When user clicks on Edit button, particular row(Text Box) should be enable to edit the values generated.
But Unfortunately in my coding, always the fist row only gets enabled.
<script type="text/javascript">
function m(id){
document.getElementById('Record_id').disabled=false;
document.getElementById('file_number').disabled=false;
return false;
[Code]....
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Jul 6, 2009
I have multiple rows of data in an HTML table. E.g., financial transactions. In each row I have an HTML dropdown SELECT with options (user will select transaction tag). I want the transactionID and selected tagID to pass to an onchange event for that unique row. The transactionID comes through for the unique row of data, but I
[Code]...
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Oct 30, 2006
I'm slowly discovering the world of JavaScript, so I'm not sure I'm
attacking this problem in the right manner, thus if I'm in the wrong
newsgroup, my apologies.
What I'm trying to do is extract some news items from a web site. To
do this, I'm using Microsoft Word VBA and using the following bit of
script:
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Sep 1, 2011
I am new to javascript, Please help me with the issue below. My javascript code below should actually fetch the data from html table on button click.
function displaymessage()
{
alert ("button pressed");
var table_cells = new Array();
var table7 = document.getElementById('Auth');
[Code]...
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Jan 18, 2011
What will be the best way to extract dynamically changing information from a web page that holds XML?I have to extract some data from multiple web pages.These sites contain XML code that dynamically reloads (and changes) parts of the page.Since only small parts get a refresh (perhaps 200 bytes every 5 seconds) it wouldn't be efficient (and also might lead to negative reactions from the server) to reload the whole page (about 40k) every time.How could I best determine these updated contents and send them to the program that further processes them?I am familiar with several programming languages but unfortunately have very little knowledge of internet programming.
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Sep 17, 2010
I'm trying to get some average rgb values from an image in one canvas object and apply them via fillstyle to a rectangle in another canvas object.I have a dropdown that loads an image onChange()="ChangeBaseWood()" into a canvas object. The second canvas object is to be filled with an average color based on the content of the first canvas onClick="GetBaseColor()". For simplicity I've replaced the for loop with just the values of pixel 0,0. Where I think I am assigning the rgb values, the error console keeps reporting that var sample is undefined at the line "var redpart = sample[0].
function ChangeBaseWood(){
var dropdown = document.getElementById('woodvalue');
var woodcanvas = document.getElementById('basewood');[code]....
I've tried various things to assign the redpart,grnpart and blupart but I'm missing something basic.
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Jun 9, 2009
I'm trying to write code that will extract from an XML file and then display the results. Keep getting a syntax error.
HTML:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>[code]....
My intention was to access all of the tags (name, genre, and hitsong) in the XML file. Thought that var musicianInfo = xmlDoc.getElementsByTagName("*"); would do that. Then, loop through each tag and display the result.
Why isn't it working?
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Jul 11, 2011
I am having some problems to solve what i will explain next:
I am reading a xml into a html table code...
This code only give me the textboxes that have values and the correspondent value.
What can i do to have more than the value of the textbox, ie, return the value of that and the value of another column in the same row?
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Jul 5, 2009
Here is what I'm trying to do. I will pass a directory to a PHP script, that script will then return an array of filenames back to the javascript that called it. In the javascript I want to take the filenames returned and create links to them in an unordered list.
The PHP code to get the filenames is done and when I run the script I get an array that I have formatted into json... an example of the encoded array is as follows...
{"filename:["file01.jpg","file02.jpg","file03.jpg","file04.jpg","file05.jpg","file06.jpg"]};
So here is the jquery I'm trying to use to get the filenames and create my links... But I must be missing something because my variable... data ... is empty... but status is Success.
[Code]...
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Jun 16, 2011
I am having data in table. There is an checkbox in each row . I want checked rows to be exported to excel file when user click export button.
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Oct 20, 2010
I have a JSON structure in API.When I call the API in my code it returns as the same JSON .I have to print this JSON result as table with pagination in Javascript. The table should be dynamic with previous and next buttons and the table should populate the results according to the JSON and each page should have 20 entries and then the remaining entries should go on the next page and I should be able to go back and forth in the table using previous and next respectively.tell me the exact code of how to start with getting JSON from the API and then write the JSON data in the form of dynamic table with pagination.
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Jul 23, 2005
I'm an ASP developer by trade, but I've had to create client side
scripts with JavaScript many times in the past. Simple things, like
validating form elements and such.
Now I've been assigned the task of extracting content from a given HTML
page. If anyone's familiar with the Yahoo! Store order confirmation
screen, I need to be able to grab the total amount from the table to
the right-hand side. (Sample File:
http://www.2beyourself.com/t/sample.html)
If you view the source, this is in a table and enclosed with ugly html.
the value I want to retrieve is wrapped with b tags. Originally I was
thinking of using innerHTML or innerText for extracting the value. But
I find that we cannot gain control of this piece of the Yahoo! Store to
make it work!
So after talking with peers, we thought of reading in the entire HTML
page and using regular expressions to try and extract the value.
Something along the lines of: '<b>[0-9]+.[0-9]{2}</b/>'
I'm not sure how to accomplish this. Could someone please point me in
the right direction? If this solution is even a good one. If you have
something better, I'm all ears! (eyes) If using the regular expression
would be a good solution, I need to find out how to read in the entire
HTML doc, and then parse out that piece.
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Feb 1, 2007
I'm attempting to write a quick piece of Javascript code that will
validate if the end user of the javascript has the necessary VML
attributes set in their HTML. The problem in IE is that "xmlns:v"
does not appear in their attributes property or the
getAttribute('xmlns:v') calls. The real kicker is that the 'xmlns'
attribute does return something.
The HTML Snippet would look like this:
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May 29, 2009
I want to change the content of <TD> tag of a HTML table sorted by alphabets(A-Z) in a different HTML table using javascript?
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Aug 21, 2009
I wonder if i can make the variable data which is [data] in jQuery.post( url, [data], [callback], [type] ) dynamic. for instance, this is the form i want to send,
PHP Code:
<form action="send_xml.php" method="post" enctype="multipart/form-data" id="form_send"><input type="checkbox" id="var_1" class="checkbox"/><input type="checkbox" id="var_2" class="checkbox"/></form>
[Code]...
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Nov 12, 2009
I have written some JavaScript that I can use to remove a table row from a table. If I have the table:
[Code]...
I also have JavaScript that will add a row to the same table. I've found that if I add a bunch of rows, when I delete one, there is a small amount of whitespace added between the permanent row and the others. It seems like while the row is removed, some remnants of it remain. Is there a way to get rid of it completely?
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Jan 25, 2007
I am trying to make a dynamic table which will automatically update after running a query. My Table contains 4 columns.
I am trying to update the table by adding rows of information to it. But i am able to add only one column, how can i insert 4 columns and make the table resize automatically. Code:
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May 30, 2010
I wasn't sure if this should go in the JavaScript or PHP forum, so I decided JavaScript.
I have created a site that has a form where the user can create as many rows as wanted. I really have no idea how I can then get this information to use in PHP.
Here is my JavaScript function creating the rows code...
I read something about naming each element something such as 'el[]' and then iterating through it on the PHP side, but that didn't make much sense to me. I have only been using PHP for a few weeks now so I'm pretty new.
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Dec 30, 2002
Would this be ok to use???
<script>
src=data1.js language="javascript" type="text/javascript"
function newdata()
src=data2.js language="javascript" type="text/javascript"
</script>
<a href="javascript:newdata()">new data
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