I noticed that a simple collapsed dock I have is still showing a bit of the contents when the page loads. If I expand it and collapse it, then it will display properly. Version I have is 2019.2.514
I checked and noticed it was using the Lightweight render mode and that it would be missing "overflow:hidden" in the css in the initial page load.
Code
<telerik:RadDockLayout runat="server" ID="DockLayoutExceptions"> <telerik:RadDockZone runat="server" ID="DockZoneException" Orientation="Vertical" MinHeight="40px" MinWidth="300px"> <telerik:RadDock RenderMode="Lightweight" runat="server" ID="DockExceptions" Title="Exceptions" EnableDrag="False" DockMode="Docked" Collapsed="True"> <Commands> <telerik:DockExpandCollapseCommand /> </Commands> <ContentTemplate> <cust:ExceptionTable runat="server" ID="tblOrderExceptions" Type="Order" /> </ContentTemplate> </telerik:RadDock> </telerik:RadDockZone></telerik:RadDockLayout>
Attached are images showing the generated CSS at the page load and after expanding and collapsing again.
