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Full Screen Mode
Updated on Aug 24, 2026
As the name implies, the Full Screen Mode feature of RadEditor for ASP.NET AJAX allows you to view the editor as you would in a normal fullscreen window.

If you would like to open the editor in full screen mode when the page is loaded, you can use the editor's Fire client-side method to fire the ToggleScreenMode command as shown below:
ASP.NET
<script type="text/javascript">
function OnClientLoad(editor, args)
{
editor.fire("ToggleScreenMode");
}
</script>
<telerik:RadEditor RenderMode="Lightweight" runat="server" ID="RadEditor1" OnClientLoad="OnClientLoad">
<Content>Full Screen Mode on Load</Content>
</telerik:RadEditor>