问题
I actually found this, but like the OP says it's a hacky solution, and like the votes say not a beautiful one. My program has one window.
I have a UI with 2 possible cultures, de-DE and en-US, and a button that switches the language.
Every text changes when I press that button, only the text in the DatePickers texbox doesn't, until I click on the DatePickers button, then it changes the shown date to the right format (and opens the DatePicker popup).
How can I make the shown date switch with the language? Isn't there some wpf option I can use to make it update the shown date?
Only Binding it has is SelectedDate="{Binding Path=FileDate, Mode=TwoWay}, and it works well so far.
I tried doing the following on switch of language, but it doesn't make the text change:
Thread.CurrentThread.CurrentCulture = new System.Globalization.CultureInfo((string)getSetting("Language"));
Thread.CurrentThread.CurrentUICulture = new System.Globalization.CultureInfo((string)getSetting("Language"));
FileDate = FileDate; //This one Notifies about the propertychange, so I hoped it would refresh the text.
回答1:
Ok so I got another idea, and it works great, doesn't feel like a hack, and is easy to do:
When switching the language, beside setting the CurrentCulture and CurrentUICulture, I go
FileDate = DateTime.Now;
That apperently makes the DatePicker realize the Culture has changed.
回答2:
In addition to answer of squirrelkiller I would like to mention that the DatePicker (.net 4.6.1) also does not automatically take CurrentUICulture.DateTimeFormat.FirstDayOfWeek. It has to be set per Datepicker instance indiviually. I posted this also here
来源：https://stackoverflow.com/questions/39096350/wpf-datepicker-date-doesnt-switch-with-culture