1. Home
  2. Forum
  3. Blazor
  4. ComboBox cannot be virtualized

ComboBox cannot be virtualized

Hello, when I use combobox, virtualization has no effect. I loaded 5000 pieces of data, and there is no effect of virtualization. What should I do? Thank you


Attachment: download_8425fe20.rar

4 Replies
DR Deepak Ramakrishnan Syncfusion Team September 10, 2021 04:10 PM UTC

Hi Ljq, 

Greetings from Syncfusion support. 

We have checked the ComboBox component with 5000 data and virtualization support. Unfortunately, the reported issue does not occurred at our end. So, we have taken video and attached it below.  


For your convenience, we have prepared the sample and attached it below. 


Still issue persists, please share the issue reproducing sample or modify the attached sample with reported issue along with Syncfusion NuGet version that will help us to check and proceed further from our end. 

Regards, 
Deepak R. 


LJ ljq September 11, 2021 10:56 AM UTC

Thank you very much for your reply. I know how to use it


LJ ljq September 13, 2021 04:49 AM UTC

Hello, one more question,I Need to provide the Load On-Demand support for the ComboBox component. Whenever the user reaches the end of the list item. The new items should be loaded dynamically from the service/database, But I don't know how


SP Sureshkumar P Syncfusion Team September 13, 2021 12:10 PM UTC

Hi Ljq, 
Thanks for your update. 

We would like to say this our virtualization feature works as your expected load on demand when your scroller reach the end of the previously rendered list. We have demonstrated the virtualization feature with video demonstration with onactioncomplete event. Please check the below video demonstration to know more about our virtualization feature. 
As per our video the initial data loaded based on Take query property. Then we have loaded 20 counts data dynamically when each time scroller reach the end of the position. 
Regards, 
Sureshkumar P 


Loader.
Up arrow icon