'length': object is null or undefined

tsmith

Hello, I'm currently using Datatables as a client-side "skin" for my asp.net Gridview control and it works perfectly. Although when I try to attach it to a asp.net Listview control, I get the error below:

Line: 31
Error: Unable to get value of the property 'length': object is null or undefined

I get this error when debugging and in IE9. I don't know what it means and because of this I can't fix it. I ensured that the page html does include a and tags. I actually made the html look exactly like the gridview's html and it still didn't work.

Please help me, I would love to use Datatables again for this application. Thanks.

function pageLoad() {
$('#orders').dataTable({
"aaSorting": [],
"aoColumns": [
{ "bSortable": false, "bSearchable": false },
null,
{ "bSortable": false, "bSearchable": false },
{ "bSortable": false, "bSearchable": false },
{ "bSortable": false, "bSearchable": false },
{ "bSortable": false, "bSearchable": false },
{ "bSortable": false, "bSearchable": false }
]
});
};

tsmith

For those who are interested, I was able to solve my problem. Length was related sType so the solution below solved my issue. Because of this I was able to use Datatables and apply them against an asp.net Listview control. Awesome tool.

function pageLoad() {
$('#orders').dataTable({
"bSort": false,
"bAutoWidth": false,
"aoColumns": [
{ "sType": "string" },
{ "sType": "string" },
{ "sType": "string" },
{ "sType": "string" },
{ "sType": "string" },
{ "sType": "string" },
{ "sType": "string" }
]
});
};

allan

Which version of DataTables were you using? If the 1.8 development images I'd be most interested in seeing your table with this error occurring so I can address the issue.

Thanks,
Allan

tsmith

DataTables-1.7.6 version







Name


Plan


Objective


Step


Note


Due Date










Simpson, Lora








Schizzna, Lora






I'm guessing it has something to do with "colspan" attribute.

allan

Ah yes - that would do it. DataTables doesn't currently have any support for colspan or rowspan in the TBODY element - sorry. The main reason is that columns and rows are treated independently - thus each cell must be 'resolvable' (required for sorting, filtering etc).

Allan