How to apply String functions in Advancedatagrid itemRenderer

Is it possible to get right of "~" char in advance datagrid column ? I've tried itemRenderer property but no success. For example, I want to remove all repe开发者_Python百科ated occurrence of "102.Dangerous Flora" and just to keep right of "~".

ArrayCollection is set as data provide for the grid.

alt text http://4.bp.blogspot.com/_T_-j3ZLqfNQ/TE6C_dgi6mI/AAAAAAAABqU/LFNf_bOK3zQ/s1600/3.PNG

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use like this.....

for that sign use these without space

& # 126 ;