Dynamically Change Values in Dropdown

Question

I am bringing in a list as the Datasource and it will produce a dropdown with all of the list elements. But what if the page already brought in the entire list, but then a filter is applied and I only want half of the list to show on the dropdown? Can the dropdown list update without refreshing the webpage?

Berly Christopher · Accepted Answer

Hi Nathanael, 
  
Greetings from Syncfusion support. 
  
We can achieve the requested requirement with help of take query in the filtering event as mentioned below code example.  
  




public Query Querydata { get; set; }   
public void onFlitering(FilteringEventArgs e) 
    { 
        Querydata = new Query().Take(5); 
} 
 
  
Based on this, we can showcase the required item in the popup after filtering functionality.  
  
Sample Link: https://www.syncfusion.com/downloads/support/directtrac/general/ze/DDL_Take_163929-595580361  
  
Regards, 
Berly B.C