How to sort Resource dictionary keys in wpf?

Hi EveryOne,

                    I need to sort ResourceDictionary keys in wpf. My Resource Dictionary consists of keys and values and i need to maintain in sorting order. I tried with the help of SortedList and stored in the resource dictionary. But its not coming as sorting order. can any one provide me a sample to solve this problem with the sample?

Thanks In advance

Stalin Raj.