I have a panel bar in my application. The use case with my application is, I wanted to change the color of Panel bar when my project goes through various stages, Ex: Stage 1,2,3,4. May be like

For Stage 1: Red,

Stage 2: Orange,

Stage 3: Blue,

Stage 4: Green

Is this possible? If possible how to do it.

Thanks,

SC

Hello,

The easiest way to change the colors in the PanelBar would be to set a custom CssClass to the PanelBar from the server-side. Then you can use pure CSS to control the colors of any items inside the PanelBar.

<style>
    .RadPanelBar.red-panelbar .rpItem .rpLink {
        background-color: red;
        background-image: none;
        /* original values for Default skin*/
        /* background-color: #e6e6e6;*/
        /* background-image: linear-gradient(#fafafa,#e6e6e6);*/
    }
</style>
<telerik:RadPanelBar ID="RadPanelBar1" runat="server" RenderMode="Lightweight" CssClass="red-panelbar">
    <Items>
        <telerik:RadPanelItem Text="Item 1"></telerik:RadPanelItem>
        <telerik:RadPanelItem Text="Item 2"></telerik:RadPanelItem>
        <telerik:RadPanelItem Text="Item 3"></telerik:RadPanelItem>
        <telerik:RadPanelItem Text="Item 4"></telerik:RadPanelItem>
    </Items>
</telerik:RadPanelBar>

For further customization, you can follow the suggestions in the first two points of the Improve Your Debugging Skills with Chrome DevTools blog post explaining how to inspect the generated HTML and check the applied styles for various elements. 

• Inspect the Generated HTML of a Control;
• See the Applied Styles;

Once you know the styles you need to override, you can use the same style selector and add "html body " in front of it to make it more specific, "stronger". More on CSS specificity you can find here: 

• Specifics on CSS Specificity;
• CSS Specificity: Things You Should Know;
• Specificity - CSS | MSDN;

Regards,
Peter Milchev
Progress Telerik