Adding Extra Rows in a html table

unistake · October 21, 2009

Hi all,

I am having trouble trying to edit a bit of javascript. Basically, I would like to be able to click an 'add button' that would add an extra row of form fields to the table.

I was hoping someone could highlight the parts of the script I need to edit - in order to create more columns but still has the same functions as this script. ( I would like about 15 columns!)

Also, is there a way to simply add a row with the same values as the above row just for convenience? - maybe to reduce the amount of code that would need adding?

Thanks for the help. the code I have is....

<head>
<script type="text/javascript" language="javascript">
// Last updated 2006-02-21
function addRowToTable()
{
  var tbl = document.getElementById('tblSample');
  var lastRow = tbl.rows.length;
  // if there's no header row in the table, then iteration = lastRow + 1
  var iteration = lastRow;
  var row = tbl.insertRow(lastRow);
  
  // left cell
  var cellLeft = row.insertCell(0);
  var textNode = document.createTextNode(iteration);
  cellLeft.appendChild(textNode);
  
  // right cell
  var cellRight = row.insertCell(1);
  var el = document.createElement('input');
  el.type = 'text';
  el.name = 'txtRow' + iteration;
  el.id = 'txtRow' + iteration;
  el.size = 40;
  
  el.onkeypress = keyPressTest;
  cellRight.appendChild(el);
  
  // select cell
  var cellRightSel = row.insertCell(2);
  var sel = document.createElement('select');
  sel.name = 'selRow' + iteration;
  sel.options[0] = new Option('text zero', 'value0');
  sel.options[1] = new Option('text one', 'value1');
  cellRightSel.appendChild(sel);
}
function keyPressTest(e, obj)
{
  var validateChkb = document.getElementById('chkValidateOnKeyPress');
  if (validateChkb.checked) {
    var displayObj = document.getElementById('spanOutput');
    var key;
    if(window.event) {
      key = window.event.keyCode; 
    }
    else if(e.which) {
      key = e.which;
    }
    var objId;
    if (obj != null) {
      objId = obj.id;
    } else {
      objId = this.id;
    }
    displayObj.innerHTML = objId + ' : ' + String.fromCharCode(key);
  }
}
function removeRowFromTable()
{
  var tbl = document.getElementById('tblSample');
  var lastRow = tbl.rows.length;
  if (lastRow > 2) tbl.deleteRow(lastRow - 1);
}
function openInNewWindow(frm)
{
  // open a blank window
  var aWindow = window.open('', 'TableAddRowNewWindow',
   'scrollbars=yes,menubar=yes,resizable=yes,toolbar=no,width=400,height=400');
   
  // set the target to the blank window
  frm.target = 'TableAddRowNewWindow';
  
  // submit
  frm.submit();
}
function validateRow(frm)
{
  var chkb = document.getElementById('chkValidate');
  if (chkb.checked) {
    var tbl = document.getElementById('tblSample');
    var lastRow = tbl.rows.length - 1;
    var i;
    for (i=1; i<=lastRow; i++) {
      var aRow = document.getElementById('txtRow' + i);
      if (aRow.value.length <= 0) {
        alert('Row ' + i + ' is empty');
        return;
      }
    }
  }
  openInNewWindow(frm);
}
</script>
</head>
<body><form action="tableaddrow_nw.html" method="get">
<table border="1" id="tblSample">
  <tr>
    <th colspan="3">Sample table</th>
  </tr>
  <tr>
    <td>1</td>
    <td><input name="txtRow1" type="text"
     id="txtRow1" onKeyPress="keyPressTest(event, this);" value="default value" size="40" /></td>
    <td>
    <select name="selRow0">
    <option value="value0">text zero</option>
    <option value="value1" selected>text one</option>
    </select>
    </td>
  </tr>
</table>
<p><input type="button" value="Add another" onClick="addRowToTable();" />
  </p>
<p>
  <input type="button" value="Remove Last Row" onClick="removeRowFromTable();" />
  <input type="button" value="Add Logbook" onClick="validateRow(this.form);" />
</p>
</form>
</body>

unistake · October 22, 2009

any ideas?

unistake · October 24, 2009

anyone?

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Adding Extra Rows in a html table

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