Get the number of rows in a HTML table

Question

I ve browsed the Internet looking for an answer on this but I can t find a solution  I want to count the amount of rows my HTML table has in when a link button is pressed  Can someone help me out please   This is what I have so far        HypSelectAll   click function           var count       gvPerformanceResult   children   length       for  i   0  i  lt  count  i              alert i                 But some reason it returns 0 even though I have about 12 rows in my table  I ve checked my ID name and it s correct

User · Answer

The following code assumes that your table has the ID 'MyTable'

<script language="JavaScript">
<!--
var oRows = document.getElementById('MyTable').getElementsByTagName('tr');
var iRowCount = oRows.length;

alert('Your table has ' + iRowCount + ' rows.');
//-->
</script>

Answer taken from : http://www.delphifaq.com/faq/f771.shtml, which is the first result on google for the query : "Get the number of rows in a HTML table" ;)

User · Answer

Well it depends on what you have in your table   its one of the following If you have only one table  var count       gvPerformanceResult tr   length    If you are concerned about sub tables but this wont work with tbody and thead  if you use them   var count       gvPerformanceResult gt tr   length    Where by this will work  but is quite frankly overkill    var count       gvPerformanceResult gt tbody gt tr   length

User · Answer

Try   var count       gvPerformanceResult tr   length

User · Answer

var x   document getElementById  myTable   rows length

User · Answer

In the DOM  a tr element is  implicitly or explicitly  a child of tbody  thead  or tfoot  not a child of table  hence the 0 you got   So a general answer is   var count       gvPerformanceResult  gt     gt  tr   length    This includes the rows of the table but excludes rows of any inner table

[javascript] Get the number of rows in a HTML table

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