Right-to-Left Support
The RadButton fully supports right-to-left (RTL) language locales (Figure 1).In order to turn on the RTL support you should set dir=rtl to the html or body element or at least to its parent element (Figure 1). You can also use the direction:rtl CSS property.
<div dir="rtl">
<telerik:RadButton RenderMode="Lightweight" runat="server" ID="RadButton1" Text="Push Button 1">
<Icon SecondaryIconCssClass="rbUpload" SecondaryIconRight="10" SecondaryIconTop="3" />
</telerik:RadButton>
<br />
<br />
<telerik:RadButton RenderMode="Lightweight" runat="server" ID="RadButton2" Text="Link Button 1" ButtonType="LinkButton">
</telerik:RadButton>
<br />
<br />
<telerik:RadButton RenderMode="Lightweight" ID="BuiltinIconsButton2" runat="server" ButtonType="StandardButton"
ToggleType="CustomToggle" AutoPostBack="false">
<ToggleStates>
<telerik:RadButtonToggleState SecondaryIconCssClass="rbOk" Text="OK" />
<telerik:RadButtonToggleState SecondaryIconCssClass="rbCancel" Text="Cancel" />
</ToggleStates>
</telerik:RadButton>
</div>