Format date with StringFormat in TextBlock in WPF

Question

I have stored date in database without slashing for some reason . it means that I have a date field like 20110602.

As i want to retrieve this date and show it in a textblock I need a formatting to show this date as a normal date with slash.

How can i use StringFormat in this way ? ... does anyone konw what format should I use to convert "20110602" to 2011/06/02 ?

<TextBlock  Text="{Binding CreatedDate, StringFormat=?????"

Update your database, do not do it on the client. StringFormat won't help you anyway, but you might use converter — Snowbear
– Snowbear, Commented Jun 10, 2012 at 19:21
I have to do it because i'm using Persian Date Time .. and i don't have equivalent control either in UI nor I have this type in Sql server ... and I NEED a formatter to do this — Pouyan
– Pouyan, Commented Jun 10, 2012 at 19:25

Nick Babcock · Accepted Answer · 2012-06-10 19:33:45Z

4

If you perfer the route of implementing a converter:

class dateTimeConverter : IValueConverter
{
    public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
        string dateString = (string)value;
        return DateTime.ParseExact(dateString, "yyyyMMdd", System.Globalization.CultureInfo.InvariantCulture);
    }

    public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
        throw new NotImplementedException();
    }
}

Then in your xaml

<TextBlock Text="{Binding Path=<path>, Converter={StaticResource <dateTimeConverterKey>}, StringFormat=\{0:yyyy/MM/dd\}}"/>

answered Jun 10, 2012 at 19:33

Nick Babcock

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Comments

eyossi · Accepted Answer · 2012-06-10 19:24:41Z

1

Try the DateTime.ParseExact method:

  dateString = "Sun 15 Jun 2008 8:30 AM -06:00";
  format = "ddd dd MMM yyyy h:mm tt zzz";
  try {
     result = DateTime.ParseExact(dateString, format, provider);
     Console.WriteLine("{0} converts to {1}.", dateString, result.ToString());
  }
  catch (FormatException) {
     Console.WriteLine("{0} is not in the correct format.", dateString);
  }

in your case i believe that the format should be:

 format = "yyyyMMdd";

for more info: http://msdn.microsoft.com/en-us/library/w2sa9yss.aspx

answered Jun 10, 2012 at 19:24

eyossi

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2 Comments

Pouyan Over a year ago

Thanks very much introducing this method but I want to use this formatter in a Binding .. so i need a way to do it in Xaml not in C#

eyossi Over a year ago

Couldn't get it from your question before it was edited... sorry that i couldn't help

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