I am scratching my head over something rather stupid yet apparently difficult.
DataView dvFormula = dsFormula.Tables[0].DefaultView; dvFormula.RowFilter = \"
Depending on your data provider, you may need to escape dates with the # character rather than the ' character. In addition, I would format your dates in the format YYYY-MM-DD to ensure it can be recognized as a date correctly.
#
'
YYYY-MM-DD