Please refer below code
C#
DataTable dt = new DataTable();
dt.Columns.AddRange(new DataColumn[] {
new DataColumn("Id",typeof(int)),
new DataColumn("Name",typeof(string)),
new DataColumn("Dob",typeof(DateTime))
});
dt.Rows.Add(1, "Daivd", DateTime.Parse("2015-02-02"));
dt.Rows.Add(2, "Kevin", DateTime.Parse("2015-03-05"));
dt.Rows.Add(1, "Jhon", DateTime.Parse("2015-05-05"));
DateTime date = DateTime.Parse("2015-02-02");
var result = from row in dt.AsEnumerable()
where Convert.ToDateTime(row["Dob"]).ToShortDateString() == date.ToShortDateString()
select row;
I hope this will help you out.