System.ArgumentOutOfRangeException: StartIndex cannot be less than zero.
Parameter name: startIndex
at System.String.Substring(Int32 startIndex, Int32 length)
at Logic_RC_Website.Categories.selection(Boolean Remove, String SelType, String Data, Boolean RemoveAll, String CurrentSelection) in c:\Websites\LogicRC.com\default.aspx.cs:line 508
at Logic_RC_Website.Categories.GetBrands(String ParentCat) in c:\Websites\LogicRC.com\default.aspx.cs:line 4501
at Logic_RC_Website.Categories.LeftFrame(String ParentCat) in c:\Websites\LogicRC.com\default.aspx.cs:line 4083
at Logic_RC_Website.Categories.ShowPage() in c:\Websites\LogicRC.com\default.aspx.cs:line 2130