I have a MultiColumnComboBox that works as expected unless the search returns more than a certain number of items. I'm not sure what the limit is, if I get 1500 results, it displays fine, but 5000 results and it is as if nothing matched and I get no items in the combo.
Is this a configurable setting, and is there a way to throw up a message saying something like "too many results, refine your search"?
3 Answers, 1 is accepted
Hello Robert,
As far as I can understand, upon filtering in the widget, the remote may return up to 5000 items, which are about to be rendered in the MultiColumnComboBox drop-down. Most probably the issue, in that case, is the inability of the browser to process and render the large amount of HTML that has to be generated.
In such a case, I would recommend you to use the virtualization functionality available for the widget. Than functionality re-uses HTML elements for displaying different portions of the list of items. That would allow you to generate and render only a portion of the entire list of HTML elements in the drop-down. Here you could find a Demo sample demonstrating how virtualization could be implemented for the MultiColumnComboBox. Here is some more info on the functionality and its configuration.
Regards,
Veselin Tsvetanov
Progress Telerik
Rank 1
Veteran
Hi Robert,
I am afraid that the Kendo drop-down widgets (including the MultiColumnComboBox) do not have a configuration option that would allow you to display user message when too many items are to be loaded in the pop-up. Having that said, I would recommend you to enable the virtualization functionality in the widget.
Regards,
Veselin Tsvetanov
Progress Telerik