In this step, you will add an C1AccordionExtender control to associate with the panel to create the accordion and set some of its properties.

1. Click the Panel smart tag and select Add Extender from the Panel Tasks menu.
2. In the Extender Wizard, select C1AccordionExtender and click OK. An AccordionExtender control is added to the page and the TargetControlID is set to Panel1.

   
        <cc1:C1AccordionExtender ID="Panel1_C1AccordionExtender" runat="server"
           TargetControlID="Panel1">
       </cc1:C1AccordionExtender>
                           
   

• Select View | Properties Window in the Visual Studio menu.
• Click the drop-down list at the top of the window and select Panel1_C1AccordionExtender.

Next to the ExpandDirection property, click the drop-down arrow and select Right. Next to the Theme property, select midnight. In the next step you will set the expand event with wijaccordion.