Clarification on large data combobox - Branched from 174735

Question

have an 40
razor page which contain combobox control.I have loaded data combobx in oninitialize event.The
average record in combobox is 2500 record per page ( single combobox)Is
there any performance or load test issue,If 500 concurrent
user access this page using above scenario (loading large data in oninitialize
event).

Please advise the
best method to handle this scenario.

Vinitha Jeyakumar · Answer

Hi KINS,You can use the ComboBox virtualization feature to improve the UI performance for a large amount of data when EnableVirtualization is true. And you can also use Filtering options to set AllowFiltering as true, initially load only minimal data (Only 10 data) using Query, and then starts to filter as soon as you start typing characters in the component filtered data listed in the popup and you can select it among them. please check the sample and documentation below,Sample: https://www.syncfusion.com/downloads/support/directtrac/general/ze/ComboBoxServer-2020586330Virtualization documentation: https://blazor.syncfusion.com/documentation/combobox/virtualizationFiltering documentation: https://blazor.syncfusion.com/documentation/combobox/filteringRegards,Vinitha