CultureInfo on a IValueConverter implementation

Posted by slugster on Stack Overflow See other posts from Stack Overflow or by slugster
Published on 2010-03-18T21:44:30Z Indexed on 2010/03/18 22:01 UTC
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When a ValueConverter is used as part of a binding, one of the parameters to the Convert function is a System.Globalization.CultureInfo object.

Can anyone tell me where this culture object gets its info from?

I have some code that formats a date based on that culture. When i access my silverlight control which is hosted on my machine, it formats the date correctly (using the d/MM/yyyy format, which is set as the short date format on my machine). When i access the same control hosted on a different server (from my client machine), the date is being formatted as MM/dd/yyyy hh:mm:ss - which is totally wrong. Coincidentally the regional settings on the server are set to the same as my client machine.

This is the code for my value converter:

    public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
        if (value is DateTime)
        {
            if (parameter != null && !string.IsNullOrEmpty(parameter.ToString()))
                return ((DateTime)value).ToString(parameter.ToString());
            else
                return ((DateTime)value).ToString(culture.DateTimeFormat.ShortDatePattern);
        }
        return value;
    }

basically, a specific format can be specified as the converter parameter, but if it isn't then the short date pattern of the culture object is used.

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