Yes, you are right. I have mislead you. Only the TabStrip is available before PreRender. The Tabs are added just after PreRender, so you can use the same RadRibbonBar event:
sender, System.EventArgs e)
var tabStrip = RadRibbonBar1.FindControl(RadRibbonBar1.ID +
Please excuse for my mistake and let me know how it goes with the code above.
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