Enabling Fluid behavior of RadEditor (Width="100%") causes the tools not to collapse with a smaller view-port. Also, there are some further visual glitches with the toolbar. Solution 1: Add a CSS rule to expand the height of the tool-groups automatically. .<SkinName>.reToolbar { height:auto !important; } Solution 2: Enable Lightweight rendering (or Auto). <telerik:RadEditor ID="RadEditor1" Skin="Silk" RenderMode="Lightweight" runat="server" Width="100%" > </telerik:RadEditor>
The fluid behavior can be easy improved by loading a optimized tools file for the specified skin which has smaller groups e.g. The following tools group <?xml version="1.0" encoding="utf-8" ?> <root> ... <tools name="DropdownToolbar" > <tool name="InsertSymbol"/> <tool name="InsertTable"/> <tool name="InsertFormElement" /> <tool name="InsertSnippet"/> <tool name="ImageMapDialog"/> <tool name="InsertCustomLink" shortcut="CTRL+ALT+K / CMD+ALT+K"/> <tool separator="true"/> <tool name="ConvertToLower" /> <tool name="ConvertToUpper" /> <tool separator="true"/> <tool name="Zoom"/> <tool name="ModuleManager" /> <tool name="ToggleScreenMode" shortcut="F11 / CMD+F11"/> <!--<tool name="Help" shortcut="F1"/>--> <tool name="AboutDialog" /> </tools> </root> could be modified to: <?xml version="1.0" encoding="utf-8" ?> <root> ... <tools name="DropdownToolbar" > <tool name="InsertSymbol"/> <tool name="InsertTable"/> <tool name="InsertFormElement" /> <tool name="InsertSnippet"/> <tool name="ImageMapDialog"/> <tool name="InsertCustomLink" shortcut="CTRL+ALT+K / CMD+ALT+K"/> </tools> <tools> <tool name="ConvertToLower" /> <tool name="ConvertToUpper" /> </tools> <tools> <tool name="Zoom"/> <tool name="ModuleManager" /> <tool name="ToggleScreenMode" shortcut="F11 / CMD+F11"/> <tool name="AboutDialog" /> </tools> </root> More detailed information about configuring toolbars can be found in this help article: http://docs.telerik.com/devtools/aspnet-ajax/controls/editor/functionality/toolbars/overview