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Hello, so I came across this post here: https://datatables.net/forums/discussion/comment/150173/#Comment_150173

That error is commonly asked about. You can search to forum for the error Cannot set property '_DT_CellIndex' of undefined to get ideas of where to look, Such as this [thread](https://datatables.net

Sounds like this thread has the same problem.

https://datatables.net/forums/discussion/comment/177739/#Comment_177739

Thanks, this was reported a while ago, see here. I'll see if it can be expedited.

Start with thisexample from this thread.

There are a few threads discussing that, try this one here.

https://datatables.net/forums/discussion/comment/190137/#Comment_190137

Disregard, I found a solution from this post and it works like a charm! https://datatables.net/forums/discussion/comment/186663/#Comment_186663

This thread should help, it's asking the same thing.

Do you want the OR search within a column or across all columns in the row?

One option is to create the child row as a Datatable. Then create a second format function for the child Datatable. You can start with this blog to see how to create a child Datatable. You can ign…

This example from this thread may help. You would need to do something similar to that,

Yep, entirely possible. This example from this thread may help you to get started,

The plugin you have is basically an AND search so both columns need to be within the range to display. Sounds like you want an OR search. For an OR search you will need to combine the boolean resul…

Another option is to use the RowGroup Extension. This thread shows examples of collapsing groups with a click - similar to child details. Start with the example Colin links to in his first response.

This thread should help, it's asking the same thing.

Look at the browser's console, you are getting this error:

You'll need to make the columns.render a bit smarter - as you need to also declare the tooltip in there too. This example here from this thread may help, as it is doing that,

This looks very similar to this thread - with a new user ID!. I'm not clear why you would ask the same question twice, but please don't, it wastes everyone's time.