Remove , at end of string

[Gaurav_Bahuguna]

input string - EMAIL EXTRACTION FAILED CUSTOMER , COMMERCIAL , WS FLATE RATE , TRADE ,EMAIL EXTRACTION FAILED CUSTOMER , COMMERCIAL , WS FLATE RATE , TRADE ,

I want to remove the comma in the end after TRADE

[Pradeep_Shiv]

inputString =inputString.TrimEnd.Trim(","c)