Question

How to traverse a table using DOM & javascript to get input values to put in php variables?

Asked by: IT79637

Hi Experts:

I have a table where the first row is written in html.  See: "Row 1 HTML" in the code section below.

When I add a new row to the table, I use javascript and DOM elements.  See "Javascript to add rows 2...n". in code section below.

In the image below, row 1 is html and rows 2-5 are buried in the DOM (no html code).

How do I traverse the table, rows 2 to n,  to retrieve the value in the input fields: BU, Dept, GL Acct, Project, Task, Amount so I can put them in php variables and pass the values to the server for validation and other  processing?

The fields are named as follows: bu1, bu2,...,bu5. There can bu up to 100 rows. The other fields are similarly named.

Thanks much.
Cheers!!!

Row 1 HTML
------------
<table id="distline" width="675"  cellpadding="3" cellspacing="0" >
    <tr class="blck12">
      <td bgcolor="7C7C7C"></td>
      <td size="3" align="center" class="lbl">1</td>
      <td><input  name="bu1"   type="text" size="5"   maxlength = "5"  value="" tabindex="100"/></td>
      <td><input  name="dept1" type="text" size="5"   maxlength = "5"  value="" tabindex="101"/></td>
      <td><input  name="acct1" type="text" size="9"   maxlength = "9"  value="" tabindex="102"/></td>
      <td><input  name="proj1" type="text" size="5"   maxlength = "5"  value="" tabindex="103"/></td>
      <td><input  name="task1" type="text" size="5"   maxlength = "5"  value="" tabindex="104"/></td>
      <td><input  name="amt1"  type="text" size="14"  maxlength = "14" value="" tabindex="105"/></td>
      <td>
          <input type="image"  class="addrow" alt="add row" src="images/rowOutAdd.png" id="addrow"
            onmouseout= "this.src='images/rowOutAdd.png'"
            onmouseover="this.src='images/rowOverAdd.png'"
            onmousedown="this.src='images/rowDownAdd.png'"  onclick="addRowToTable(); return false"/>&nbsp;
          <input type="image"  class="delrow" alt="del row" src="images/rowOutDel.png" id="delrow"
            onmouseout= "this.src='images/rowOutDel.png';"
            onmouseover="this.src='images/rowOverDel.png'"
            onmousedown="this.src='images/rowDownDel.png'"  onclick="removeRowFromTable(); return false"/>
            <input  name="dlrow" id="dlrow"  type="hidden" size="1"   maxlength = "1"  value="" /></td>
      <td bgcolor="7C7C7C"></td>
    </tr>
</table>
 
Javascript to add rows 2...n.
-----------------------------------
function addRowToTable()
{
  var tbl = document.getElementById('distline');
  var lastRow = tbl.rows.length;
  var i = lastRow + 1;
  var row = tbl.insertRow(lastRow);
  row.className="blck11";
 
  // cell 0  css
  var cell0  = row.insertCell(0);
  cell0.style.backgroundColor = "#7C7C7C";
  cell0.style.topMargin = "3px";
 
  // cell 1 line no
  var cell1 = row.insertCell(1);
  cell1.style.textAlign = "center";
  cell1.style.fontFamily =  "Arial, Helvetica, sans-serif";
  cell1.style.fontSize = "12px";
  cell1.style.fontStyle = "normal";
  cell1.style.fontWeight  = "bolder";
  cell1.appendChild(document.createTextNode(i) );
 
  // cell 2 bu
  var cell2 = row.insertCell(2);
  var el = document.createElement('input');
  el.type = "text";
  el.id = 'bu' + (i);
  el.size = 5;
  el.maxLenght = 5;
  el.value = "";
  cell2.appendChild(el);
 
  // cell 3 dept
  var cell3 = row.insertCell(3);
  var el = document.createElement('input');
  el.type = "text";
  el.id = 'dept' + (i);
  el.size = 5;
  el.maxLenght = 5;
  el.value =  "";
  cell3.appendChild(el);
 
  // cell 4 account
  var cell4 = row.insertCell(4);
  var el = document.createElement('input');
  el.type = "text";
  el.id = 'acct' + (i);
  el.size = 9;
  el.maxLenght = 9;
  el.value =  "";
  cell4.appendChild(el);
 
  // cell 5 project
  var cell5 = row.insertCell(5);
  var el = document.createElement('input');
  el.type = "text";
  el.id = 'proj' + (i);
  el.size = 5;
  el.maxLenght = 5;
  el.value =  "";
  cell5.appendChild(el);
 
  // cell 6 task
  var cell6 = row.insertCell(6);
  var el = document.createElement('input');
  el.type = "text";
  el.id = 'task' + (i);
  el.size = 5;
  el.maxLenght = 5;
  el.value =  "";
  cell6.appendChild(el);
 
  // cell 7 amount
  var cell7 = row.insertCell(7);
  var el = document.createElement('input');
  el.type = "text";
  el.id = 'amt' + (i);
  el.size = 14;
  el.maxLenght = 14;
  el.value =  "";
  cell7.style.fontFamily = "Arial, Helvetica, sans-serif";
  cell7.style.fontSize  = "12px";
  cell7.style.fontStyle = "normal";
  cell7.style.fontWeight = "500";
  cell7.style.color = "#000000";
  cell7.style.textDecoration = "none";
  cell7.appendChild(el);
 
  // cell 8 empty
  var cell8 = row.insertCell(8);
 
  // cell 9 css
  var cell9 = row.insertCell(9);
  cell9.style.backgroundColor = "#7C7C7C";
  cell9.style.topMargin = "3px"
}

                                  
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Asked On
2008-12-06 at 10:37:36ID23963206
Tags

javascirpt

,

DOM

Topic

Document Object Model

Participating Experts
1
Points
500
Comments
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Answers

 

by: mplungjanPosted on 2008-12-07 at 00:56:04ID: 23115136

Since you give them unique ID's no need to travers

Save the number of entries and do

for (var i=0;i<nofEntries;i++) {
 var currentBu = document.getElementById('bu'+i).value
}

 

by: IT79637Posted on 2008-12-07 at 08:22:59ID: 23116234

Cool!!!
So simple!!!
I'm going to give it a try now.

Thanks.

20120131-EE-VQP-002

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