I.e. a new Rad Dock created and a control dragged into it using design editor
<telerik:RadDock ID="RadDock1" runat="server" Width="300px">
<uc2:EntitySearcher ID="EntitySearcherClients" runat="server" EntityTypeID="1" Mode="SelectProperty" />
<asp:Button ID="ButtonCloseDock" runat="server" Text="Close Searcher" OnClick="ButtonCloseDock_Click" />
</telerik:RadDock>
After fixing this but changing the properties through design editor
<telerik:RadDock ID="RadDock1" runat="server" Width="500px" Height="500px" Top="300px" Left="200px" DefaultCommands="None" DockHandle="Grip" DockMode="Floating" Visible="false">
<ContentTemplate>
<uc2:EntitySearcher ID="EntitySearcherClients" runat="server" EntityTypeID="1" Mode="SelectProperty" />
<asp:Button ID="ButtonCloseDock" runat="server" Text="Close Searcher" OnClick="ButtonCloseDock_Click" />
</telerik:RadDock>
Regards
Nigel