Hi

When i try to use more than 500 or i'm using 5000 to 10000 Records in RadCombobox , it is getting very slow while searching the text.
i seen the Demo link in that You are using upto 100 Records only.. so only it was fast.
See my Code and Give me the solution.

<

 

telerik:RadComboBox ID="RadComboBox3" AllowCustomText="true" runat="server" Width="289px" Filter

 

 

 

Height="200px" DataSourceID="SqlDataSource1" DataTextField="BillingName"

 

 

 

 

EmptyMessage

 

 

 

</telerik:RadComboBox

 

 

<

 

asp:SqlDataSource ID="SqlDataSource1" runat="server"

 

 

 

 

ConnectionString="<%$ ConnectionStrings:TestConString %>"

 

 

 

 

SelectCommand

 

 

 

</asp:SqlDataSource

 

 

Hello Ashok,

The best approach to optimize the performance speed of Telerik RadComboBox when using huge amount of items is using the load-on-demand feature.  The load-on-demand mechanism loads the items only when the user types or clicks in the field or the drop-arrow image. It filters the Items server-side before they are loaded in the control and the Filter feature performs filtering at client-side.
And I recommend you to retrieve data in portions - with use of ShowMoreResultsBox and VirtualScrolling options.

Take a look at the this demo which demonstrates the various Load On Demand Modes.

Thanks,
Shinu.