Replies

• tuurtnt@hotmail.com Posts: 7Questions: 0Answers: 0

  October 2010

  The same error is in the full version of the file:
  
  Uncaught TypeError: Cannot read property 'asSorting' of undefined LINE 6631
• carlhoerberg Posts: 1Questions: 0Answers: 0

  October 2010

  Make sure that your THEAD cells uses TH and not TD
• jkadakia Posts: 2Questions: 0Answers: 0

  April 2011

  Thanks a ton Carl.
• Tobsn Posts: 1Questions: 0Answers: 0

  September 2011

  what if i load the column names from the server? i'm getting this error and i pass in a iColumns sColumns. :/
• allan Posts: 63,689Questions: 1Answers: 10,500 Site admin

  September 2011

  If you load column names from the server, you need to do some kind of post processing on the Ajax response form the server since DataTables won't automatically put in any column information from the server. For example you could do $.ajax() to get the initialisation you want for the DataTable and then just use that for the initialisation.
  
  Allan
• Josepsmith Posts: 1Questions: 0Answers: 0

  January 2012

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• macool Posts: 1Questions: 0Answers: 0

  September 2012

  Hey,
  I had this error too. I solved it by changing my table's HTML. I didn't have thead and tbody, so I did:
  
  [code]
  
  
  
  Column 1
  Column 2
  
  
  
  
  Row 1
  Row 1
  
  
  
  [/code]
• OliverRC Posts: 2Questions: 0Answers: 0

  October 2012

  I had this problem when I incorrectly defined my aaSorting like this:
  [code]"aaSorting": [0, 'asc'][/code]
  instead of:
  [code]"aaSorting": [[0, 'asc']][/code]
• merve Posts: 3Questions: 0Answers: 0

  December 2012

  what if i dont need thead? is it possible?
• allan Posts: 63,689Questions: 1Answers: 10,500 Site admin

  December 2012

  No - DataTables requires a thead element - http://datatables.net/usage/#prerequisites
  
  Allan
• aknudsen Posts: 2Questions: 0Answers: 0

  December 2012

  I ran into this issue too, I definitely think DataTables should detect that the table doesn't define any 'th' elements and throw a corresponding exception. The current error is way too indirect and difficult to relate to the originating issue (i.e., that the table doesn't define column headers).
• allan Posts: 63,689Questions: 1Answers: 10,500 Site admin

  December 2012

  It isn't as simple as that I'm afraid - DataTables can actually create a thead element for you if it does detect one, you need to supply sName for the columns and it will create the element. This is useful for dynamically created tables.
  
  Ultimately yes, there should be a 'debug' version of DataTables that provides trace information about everything so every little issue can be tracked and understood, but like jQuery the general view with DataTables is that there isn't much error handling since it is redundant code once you've got your table correctly setup.
  
  Not to say it isn't useful! I really do want to do a debug version, and have done for years. Other things just keep taking priority!
  
  Allan
• aknudsen Posts: 2Questions: 0Answers: 0

  December 2012

  Didn't realize it'd be that infeasible to throw an exception in case table headers are missing, but then again I'm not a JavaScript guru.
• allan Posts: 63,689Questions: 1Answers: 10,500 Site admin

  December 2012

  No its not infeasible - you'd just do `if ( $('thead', table).length === 0 ) { throw 'No thead!'; }` - what I'm suggesting is that it isn't practical since DataTables can, under certain conditions, inject and build a thead element, with columns for you - so simply not having a thead is not a valid test (in this specific case).
  
  So certainly it is possible (as most things are with a little extra code :-) ), but adding error conditions is not something I want to put into DataTables core at this time - it would be suitable for a debug version, which is on the cards, but a good way out (with v1.10 taking priority at the moment).
  
  Allan
• DmitryKrasnikov Posts: 2Questions: 0Answers: 0

  February 2013 edited February 2013

  I'm having this issue with "Uncaught TypeError: Cannot read property 'className' of undefined " and it drives me crazy. Double checked table structure - yes, it has thead and tbody element
  The error happens with simple initializaition with no parameters
  
  error happens here:
  /* Classes */
  if ( bClass )
  {
  nCell.className += ' '+oCol.sClass;
  }
  
  my debug code is http://debug.datatables.net/iqilic
• DmitryKrasnikov Posts: 2Questions: 0Answers: 0

  February 2013

  my fault. i had inconsistent td number between tr.