looking at the client-side filter commandArgument, it has this format: ColumnName|?FilterValue|?FilterFunction
Is the '?' character used so you have two characters as delimiters ('|?').
Or is it used for something else. If the latter, I can strip the first character from the value to use it. But if the former I assume I can just split the commandArgument on '|?'.
If I do the split, I just want make sure you won't be changing this delimiter.