title: Compare two DATE and get Days in c#
body: <p>Count Number of days by comapaing two date, When you want to compare two date like due Date and return date of a book in library then you can get no of days in this manner</p>
  
  <pre><code>        int TotalDay;
          DateTime due = OldDate;
  
          int day = due.Day;
          int nday = DateTime.Now.Day;
          int mnt = due.Month;
          int nmnt = DateTime.Now.Month;
          int yr = due.Year;
          int nyr = DateTime.Now.Year;
          if (nyr &lt;= yr)
          {
              if (nmnt &lt;= mnt)
              {
                  if (nday &gt; day)
                  {
                      TotalDay = nday - day;
                  }
              }
              else
              {
                  TotalDay = nday - day;
                  m = nmnt - mnt;
                  TotalDay = d + (m * 30);
              }
          }
          else
          {
              TotalDay = nday - day;
              m = nmnt - mnt;
              TotalDay  = d + (m * 30);
              int y = nyr - yr;
              TotalDay  = d + (y * 365);
          }
  </code></pre>