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I want to add rows dynamically in a HTML table and the number of the column should be fixed. After adding rows I want to input some text values in each row and column. After entering the text values I want to store it in a database table. How to do that? Here is my code

    function addRow() {
        var root = document.getElementById('mytab').getElementsByTagName('tbody')[0];
        var rows = root.getElementsByTagName('tr');
        var clone = cloneEl(rows[rows.length - 1]);
        root.appendChild(clone);
    }
    function addColumn() {
        var rows = document.getElementById('mytab').getElementsByTagName('tr'), i = 0, r, c, clone;
        while (r = rows[i++]) {
            c = r.getElementsByTagName('td');
            clone = cloneEl(c[c.length - 1]);
            c[0].parentNode.appendChild(clone);
        }
    }
    function cloneEl(el) {
        var clo = el.cloneNode(true);
        return clo;
    }
#mytab td {
  width: 100px;
  height: 20px;
  background: #cccccc;
}
<html>
<head>
    <title>Untitled Document</title>
</head>
<body>
<form action="">
    <input type="button" value="Add a Row" onclick="addRow()">
    <input type="button" value="Add a Column" onclick="addColumn()">
</form>
<br>

<table id="mytab" border="1" cellspacing="0" cellpadding="0">
    <tr>
        <td><input type="text" name="enter1"></td>
        <td><input type="text" name="enter2"></td>
    </tr>

</table>
</body>
</html>

I want to add rows dynamically in a HTML table and the number of the column should be fixed. After adding rows I want to input some text values in each row and column. After entering the text values I want to store it in a database table. How to do that? Here is my code

    function addRow() {
        var root = document.getElementById('mytab').getElementsByTagName('tbody')[0];
        var rows = root.getElementsByTagName('tr');
        var clone = cloneEl(rows[rows.length - 1]);
        root.appendChild(clone);
    }
    function addColumn() {
        var rows = document.getElementById('mytab').getElementsByTagName('tr'), i = 0, r, c, clone;
        while (r = rows[i++]) {
            c = r.getElementsByTagName('td');
            clone = cloneEl(c[c.length - 1]);
            c[0].parentNode.appendChild(clone);
        }
    }
    function cloneEl(el) {
        var clo = el.cloneNode(true);
        return clo;
    }
#mytab td {
  width: 100px;
  height: 20px;
  background: #cccccc;
}
<html>
<head>
    <title>Untitled Document</title>
</head>
<body>
<form action="">
    <input type="button" value="Add a Row" onclick="addRow()">
    <input type="button" value="Add a Column" onclick="addColumn()">
</form>
<br>

<table id="mytab" border="1" cellspacing="0" cellpadding="0">
    <tr>
        <td><input type="text" name="enter1"></td>
        <td><input type="text" name="enter2"></td>
    </tr>

</table>
</body>
</html>

In this code, the problem is when I enter some text and after that, I add rows or column the same text appears in the newly added rows and column. But I want to enter different text in different boxes and I want the no of the column should be fixed to say no of the column should be 5.

  • javascript
  • php
  • jquery
  • html
Share Improve this question edited May 11, 2017 at 22:28 Teymur Mardali 8477 silver badges20 bronze badges asked May 11, 2017 at 22:18 Debasish ChoudhuryDebasish Choudhury 831 gold badge1 silver badge9 bronze badges 1
  • 2 format your code! – Jack Clancy Commented May 11, 2017 at 22:20
Add a ment  | 

1 Answer 1

Reset to default 4

Updated

Hi, you have to clear input values after cloning elements, as below. cleanUpInputs(clone); will check cloned DOM and will remove input values. Check the code below.

function addRow() {
  var root = document.getElementById('mytab').getElementsByTagName('tbody')[0];
  var rows = root.getElementsByTagName('tr');
  var clone = cloneEl(rows[rows.length - 1]);
  cleanUpInputs(clone);
  root.appendChild(clone);
}
function addColumn() {
  var rows = document.getElementById('mytab').getElementsByTagName('tr'), i = 0, r, c, clone;
    while (r = rows[i++]) {
      c = r.getElementsByTagName('td');
      clone = cloneEl(c[c.length - 1]);
      cleanUpInputs(clone);
      c[0].parentNode.appendChild(clone);
    }
}
function cloneEl(el) {
  var clo = el.cloneNode(true);
  return clo;
}

function cleanUpInputs(obj) {
  for (var i = 0; n = obj.childNodes[i]; ++i) {
    if (n.childNodes && n.tagName != 'INPUT') {
      cleanUpInputs(n);
    } else if (n.tagName == 'INPUT' && n.type == 'text') {
      n.value = '';
    }
  }  
}
#mytab td {
width: 100px;
height: 20px;
background: #cccccc;
}
<html>
<head>
    <title>Untitled Document</title>
</head>
<body>
<form action="">
    <input type="button" value="Add a Row" onclick="addRow()">
    <input type="button" value="Add a Column" onclick="addColumn()">
</form>
<br>

<table id="mytab" border="1" cellspacing="0" cellpadding="0">
    <tr>
        <td><input type="text" name="enter1"></td>
        <td><input type="text" name="enter2"></td>
    </tr>

</table>
</body>
</html>

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