XML-将值转换为特定格式

Question

I'm loading a XML file into a GRIDVIEW and I managed to do so. But I'm currently stuck in one thing and that is, when I try to load one specific value (47.138). This value is supposed to be loaded in the following format (Minutes:Seconds.Mileseconds). Which in this case would be "0:47.138" .

My question is, how do I load this type of data and show it in the correct format?

XmlNodeList drivers = doc.GetElementsByTagName("Driver");

        foreach (XmlNode driver in drivers)
        {
            dInfo = new BusObjects.DriverInfo();

if (driver.ChildNodes[i].Name.Equals("BestLapTime"))
                    dInfo.FastestLap = Convert.ToDouble(driver.ChildNodes[i].InnerText).ToString("????");                     
            }

This is my DriverInfo.cs

    private double _fastestlap;

    public double FastestLap
    {
        get { return _fastestlap; }
        set { _fastestlap = value; }
    }

Answer 1

You can create a TimeSpan object and use that to format the text.

TimeSpan ts = TimeSpan.FromSeconds(47.138);
Console.WriteLine(ts.ToString(@"mm\:ss\.fff"));

In your DriverInfo class, you could have a method to do this for you.

public string GetFormattedTime()
{
   TimeSpan ts = TimeSpan.FromSeconds(_fastestlap);
   return ts.ToString(@"mm\:ss\.fff");

   //shorter version if you prefer
   //return TimeSpan.FromSeconds(_fastestlap).ToString(@"mm\:ss\.fff");
}

MSDN has more information about custom TimeSpan formats.

Answer 2

Expanding on keyboardP's answer ....

foreach (XmlNode driver in drivers)
{
  dInfo = new BusObjects.DriverInfo();

  if (driver.ChildNodes[i].Name.Equals("BestLapTime"))
  {
    dInfo.FastestLap = Convert.ToDouble(driver.ChildNodes[i].InnerText);
  }
}

// you can use an auto property for FastestLap
public double FastestLap {get; set;}

// Add another property for FormattedFastestLap:
public string FormattedFastestLap 
{
    get { return TimeSpan.FromSeconds(FastestLap).ToString(@"mm\:ss\.fff"); }
}

In the foreach loop, you are setting the value of the FastestLap, which is a double. By creating another property called FormattedFastestLap, you can access the FastestLap property and convert the double into a string by first converting into a TimeSpan object and then returning the TimeSpan in a formatted string.

In your grid, you then bind the display to the FormattedFastestLap instead of the FastestLap property.