Index and length must refer to a location within the string.
Parameter name: length    at System.String.InternalSubStringWithChecks(Int32 startIndex, Int32 length, Boolean fAlwaysCopy)
   at ctrHeader.UpperCaseAll(String text)
   at ctrHeader.SetControl(Page page)
   at controls_rendering_ctrContentQuote.SetControl(Page page)
   at RenderPage.Page_Load(Object sender, EventArgs e)