Need help to edit code LINQ?

Hey @fairymemay

Kindly use this in your query condition,

DateTime.ParseExact(x("Issue Date").ToString, "yyyyMMdd", System.Globalization.CultureInfo.InvariantCulture) <= Date.ParseExact(x("วันที่รับเล่ม (<=)").ToString.Trim,"dd/M/yyyy",System.Globalization.CultureInfo.InvariantCulture)

The above condition will only do the date column comparison as requested for other columns you can add along with this.

Thanks
#nK