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+---
+title: Scheduler backend filtering
+description: How to load scheduler events (appointments) on demand from the backend page by page?
+type: how-to
+page_title: Load Scheduler appointments on demand
+slug: scheduler-kb-lod-server
+position: 
+tags: 
+ticketid: 1531423
+res_type: kb
+---
+
+## Environment
+<table>
+	<tbody>
+		<tr>
+			<td>Product</td>
+			<td>Scheduler for Blazor</td>
+		</tr>
+	</tbody>
+</table>
+
+
+## Description
+How do I "page" the scheduler data? I want to load on demand only the currently visible appointments in the view from the backend to improve performance.
+
+## Solution
+You can use the events the component provides to pass the current view and date to the data service so it can implement a high performant query to return only the necessary items, instead of returning all available appointments.
+
+You can find an example in the following sample project: [Scheduler - Load Appointments On Demand](https://github.com/telerik/blazor-ui/tree/master/scheduler/load-appointments-on-demand)