将时间格式00:44:50转换为（'00：44：50.240000'）

Question

            string val;
            val = Request.Form["timerData"].ToString();            
            TimeSpan ts = TimeSpan.FromMilliseconds(Convert.ToInt32(val.ToString()));
            lbTime.Text = ts.ToString();

• Here lbTime.Text returns me the time value in 00:44:50 format.

• In my Sql Database I have used Time(7) datatype for time and its
  Default value is ('00:00:00.0000000')

• I want to convert this format 00:44:50 To ('00:44:50.240000') and enter it in database using update statement.

Time Above is for Example Purpose

Please help me with the same.

Answer 1

If your update statement is parameterized or you use a stored procedure, passing a TimeSpan to a time(7) column should work perfectly fine . Something like this:

public static void UpdateTimestamp( int id , TimeSpan ts )
{
  using ( SqlConnection connection = new SqlConnection( "some-connect-string" ) )
  using ( SqlCommand    command    = connection.CreateCommand() )
  {
    command.CommandText = "update foo set duration = @duration where id = @id" ;

    command.Parameters.AddWithValue( "@id"       , id ) ;
    command.Parameters.AddWithValue( "@duration" , ts ) ;

    connection.Open() ;
    int rowsAffected = command.ExecuteNonQuery() ;
    connection.Close() ;

    if ( rowsAffected == 0 ) throw new InvalidOperationException( "That didn't work B^(" ) ;
    if ( rowsAffected >  0 ) throw new InvalidOperationException( "That shouldn't have happend B^(" ) ;

  }

  return ;

}

Answer 2

Try one of these:

DateTime date1 = new DateTime(2008, 8, 29, 19, 27, 15, 18);
CultureInfo ci = CultureInfo.InvariantCulture;

Console.WriteLine(date1.ToString("hh:mm:ss.f", ci));
// Displays 07:27:15.0
Console.WriteLine(date1.ToString("hh:mm:ss.F", ci));
// Displays 07:27:15
Console.WriteLine(date1.ToString("hh:mm:ss.ff", ci));
// Displays 07:27:15.01
Console.WriteLine(date1.ToString("hh:mm:ss.FF", ci));
// Displays 07:27:15.01
Console.WriteLine(date1.ToString("hh:mm:ss.fff", ci));
// Displays 07:27:15.018
Console.WriteLine(date1.ToString("hh:mm:ss.FFF", ci));
// Displays 07:27:15.018

You can even use more 'FFFFF's in order to represents up to seven most significant digits of the seconds fraction.

Taken from: http://msdn.microsoft.com/en-us/library/8kb3ddd4.aspx

Does it helps?

Answer 3

In your last expression you say

ts.ToString()

This overload only displays fractional seconds if not all digits are zero. You may want to use a custom format string, as in

ts.ToString(@"hh\:mm\:ss\.fffffff")

instead. This ought to work in .NET 4.5 and 4.0. See MSDN: Custom TimeSpan Format Strings .

Answer 4

I used the same code only mistake was i was converting value to int before passing it to timespan

string val;
            val = Request.Form["timerData"].ToString();            
            TimeSpan ts = TimeSpan.FromMilliseconds(Convert.ToDouble(val.ToString()));
            lbTime.Text = ts.ToString();

Solved