Custom date format for WPF Calendar CalendarItems
I plan to use a WPF Calendar control to display fiscal month/years. When I set the control's DisplayMode to "Year", the months (for my en-开发者_Go百科CA culture) are displayed as "Jan", "Feb", etc. I'd like to display them as "01", "02", etc but can't find a way to do this.
From Reflector, the CalendarItem.SetYearModeMonthButtons() method has code like this:
CalendarButton childButton = child as CalendarButton;
DateTime day = new DateTime(this.DisplayDate.Year, count + 1, 1);
childButton.DataContext = day;
childButton.SetContentInternal(DateTimeHelper.ToAbbreviatedMonthString(new DateTime?(day), DateTimeHelper.GetCulture(this)));
childButton.Visibility = Visibility.Visible;
ToAbbreviatedMonthString uses DateTimeFormatInfo.AbbreviatedMonthNames and gets the CultureInfo from the XmlLanguage returned by FrameworkElement.Language, and I don't think there is a way to create a custom XmlLanguage to fake out the month names.
So your only option seems to be to change the control template for the CalendarButton. You can do something like this:
<toolkit:Calendar DisplayMode="Year">
<toolkit:Calendar.CalendarButtonStyle>
<Style TargetType="primitives:CalendarButton">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="primitives:CalendarButton">
<primitives:CalendarButton>
<TextBlock Text="{Binding Month, StringFormat=00}"/>
</primitives:CalendarButton>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</toolkit:Calendar.CalendarButtonStyle>
</toolkit:Calendar>
That will also affect the year buttons, which will now all show '01' (since they all represent January 1), and doesn't highlight the current month, but it should give you a start if you want to take that approach.
精彩评论