i have used Below Code
<telerik:RadFileExplorer RenderMode="Lightweight"
OnClientLoad="OnClientLoad"
EnableFilterTextBox="true"
EnableViewState="true"
runat="server" ID="FileExplorer1" Width="800px" Height="400px"
EnableOpenFile="false"
EnableCopy="false"
EnableFilteringOnEnterPressed="true"
Configuration-EnableAsyncUpload="false">
<Configuration ViewPaths="~/MappedDir/" ></Configuration>
</telerik:RadFileExplorer>
Filter not working please help