Date Format in CSharp (edit)

Utils Class

namespace ConsoleApp1
{
 internal class Program
 {
 private static void Main(string[] args)
 {
 var dtHddt = new System.Data.DataTable();

 dtHddt.Columns.Add("Dosage", typeof(int));
 dtHddt.Columns.Add("Drug", typeof(string));
 dtHddt.Columns.Add("Patient", typeof(string));
 dtHddt.Columns.Add("commandDate", typeof(System.DateTime));

 dtHddt.Rows.Add(25, "Indocin", "David", null);
 dtHddt.Rows.Add(50, "Enebrel", "Sam", System.DateTime.Now);
 dtHddt.Rows.Add(10, "Hydralazine", "Christoff", System.DateTime.Now);
 dtHddt.Rows.Add(21, "Combivent", "Janet", System.DateTime.Now);
 dtHddt.Rows.Add(100, "Dilantin", "Melanie", System.DateTime.Now);

 string s = string.Empty;
 for (int i = 0; i < dtHddt.Rows.Count; i++)
 {
 s = dtHddt.GetSafeDate(i, "commandDate");
 System.Console.WriteLine(s);
 }
 }
 }

 public static class DataTableExt
 {
 public static string GetSafeDate(this System.Data.DataTable dt, int idx, string colName)
 {
 string s = string.Empty;
 try
 {
 if (dt != null &&
 dt.Rows.Count > 0 &&
 dt.Rows[idx][colName] != null &&
 dt.Rows[idx][colName] != System.DBNull.Value)
 {
 var myDateTime = System.Convert.ToDateTime(dt.Rows[idx][colName]);
 s = myDateTime.ToString("dd/MM/yyyy hh:mm:ss tt", System.Globalization.CultureInfo.InvariantCulture);
 }
 }
 catch (System.Exception ex)
 {
 System.Diagnostics.Debug.WriteLine(ex.ToString());
 }
 return s;
 }
 }
}

Usage

dtHddt: System.Data.DataTable
string s = dtHddt.GetSafeDate(0, "commandDate");