query in if statement

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i have tried this code but its always giving me ouptut as afternoon please check it and tell me where i go wrong....

C#

if (DateTime.Now.Hour >= 00 && DateTime.Now.Hour <= 11.59)
               {
                   query = "UPDATE Registration_Master SET session= 'MORNING' WHERE regCode= '" + code + "'";
                   com = new SqlCommand(query, con);
                   com.CommandType = CommandType.Text;
                   com.ExecuteNonQuery();
               }
               else if (DateTime.Now.Hour >= 1 && DateTime.Now.Hour <= 17)
               {
                   query = "UPDATE Registration_Master SET session= 'AFTERNOON' WHERE regCode= '" + code + "'";
                   com = new SqlCommand(query, con);
                   com.CommandType = CommandType.Text;
                   com.ExecuteNonQuery();
               }
               else if (DateTime.Now.Hour >= 18 && DateTime.Now.Hour <= 19)
               {
                   query = "UPDATE Registration_Master SET session= 'EVENING' WHERE regCode= '" + code + "'";
                   com = new SqlCommand(query, con);
                   com.CommandType = CommandType.Text;
                   com.ExecuteNonQuery();
               }
               else if (DateTime.Now.Hour >= 20 && DateTime.Now.Hour <= 24)
               {
                   query = "UPDATE Registration_Master SET session= 'NIGHT' WHERE regCode= '" + code + "'";
                   com = new SqlCommand(query, con);
                   com.CommandType = CommandType.Text;
                   com.ExecuteNonQuery();
               }

Posted 1-Nov-12 20:00pm

sumit kausalye

Updated 1-Nov-12 20:04pm

Mehdi Gholam

v2

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3 solutions

Solution 1

Try (keep the 24hr format 1pm -> 13):

C#

else if (DateTime.Now.Hour >= 13 && DateTime.Now.Hour <= 17)

Posted 1-Nov-12 20:07pm

Mehdi Gholam

Comments

MT_ 2-Nov-12 2:18am

Yup. I think thats the problem...

Solution 2

Morning
00 to 12
AfterNoon
12.01 to 17
Evening
17.01 to 19
Night
19.01 to 24

Please change if condition and try this..

Posted 1-Nov-12 20:11pm

sarathtamil

Comments

Kuthuparakkal 2-Nov-12 2:31am

Can not have values like 12.01 or 17.01 for an int32 datatype, it's a fallacy

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Kuthuparakkal · Accepted Answer · 2012-11-01T20:18:00

DateTime.Now.Hour is Integer value, and it varies from 0 to 23... try the code below:

C#

string session = "";
  if (DateTime.Now.Hour >= 6 && DateTime.Now.Hour < 12)
      {
         session = "Morning";
      }
      else if (DateTime.Now.Hour >= 12 && DateTime.Now.Hour < 18)
      {
         session = "Afternoon";
      }
      else if (DateTime.Now.Hour >= 18 && DateTime.Now.Hour < 20)
      {
         session = "Evening";
      }
      else
      {
         session = "Night";
      }

       query = "UPDATE Registration_Master SET session= '" + session +"' WHERE regCode= '" + code + "'";
       com = new SqlCommand(query, con);
       com.CommandType = CommandType.Text;
       com.ExecuteNonQuery();