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</html><description>[ad_1] If your DateFormat is always be going to like Jan-14 Feb-14 Mar-14 Apr-14 May-14 Jun-14 then you can try to use the ParseExact to convert it to the DateTime and then apply the SUM on it to get the result you want. var result = dataList.Where(x =&gt; DateTime.ParseExact(x.monthName, "MMM-yy", CultureInfo.InvariantCulture) &gt; DateTime.ParseExact("Mar-15", "MMM-yy", CultureInfo.InvariantCulture)) ... Read more</description></oembed>
