Hi
I have a large list which has recently gone to over 5000 items in SharePoint 2013 Online. I've got around the view limit so far by filtering views, however I've now run into another issue. The list has one-to-many relationship with another list, in which I've therefore created a lookup column to the large list.
I'm using SharePoint Designer, and on the edit form for the large list I have a related list view to the child list, and when you wish to add a new item to the child list, it pops up a new child item form in which I've put the ID from the parent into the query string. The child list form has a dropdown for the parent lookup list, and up until recently, I'd been able to use jquery to select the parent item from the query string value and disable all the other values in the drop down. That ensured that the correct parent item was entered into the form as it was saved.
Now, when the child form loads, I get this error message: "This is a lookup column that displays data from another list that currently exceeds the List View Threshold defined by the administrator (5000)."
I've searched around for a solution but so far come up with nothing. I can't change the list view threshold as it's SharePoint Online. I could in theory archive some of the items to a new list, but that would take some time as I'd also have to recreate the custom forms I'm using and probably also a couple of workflows.
What I'd like to do, is to somehow not use the default dropdown that appears when you add the SharePoint:FormField to the form in SharePoint Designer. I have tried using SPFilterDropdown from SPServices to filter to the individual value I need, but no joy (it works ok when there are less than 5000 values in the list), and using jQuery to somehow replace the field seems to be not possible either because the relevant properties of the field are lost when it displays the error message, which is just a <span> with nothing else.
Does anyone have any ideas what to do?!
Thanks in advance,
Duncan