I'm getting some very strange date formatting issues in my Silverlight application. My local culture is set to UK, yet I am consistently seeing US dates popping up all over the place. I can easily hardcode these to UK format in specific loactions using:
<UserControl ... Language="en-GB"...>
But as I'm sure you'd all agree this is a terrible thing to do.
I have tried setting the Lanaguage to en-GB in the main application and this has partial success. I have also tried Justin Angels suggestion (posted here: How to change date format in Silverlight DatePicker control?), again only partial success.
An example of the issue can be seen here:
http://lh3.ggpht.com/%5FL9TmtwXFtew/Sw5aVZJfG1I/AAAAAAAAGkI/6jYnsB91HjI/image%5Fthumb%5B1%5D.png http://lh3.ggpht.com/%5FL9TmtwXFtew/Sw5aVZJfG1I/AAAAAAAAGkI/6jYnsB91HjI/image%5Fthumb%5B1%5D.png
The datagrid on the parent page shows UK formatting, whilst the information in the ChildWindow shows US formatting ...grrrr
Anyone have a definitive solution for solving this across a whole application?
Thanks,
Mark
You can data bind Language property of the root visual element. Take a look at my question here:
How to switch UI Culture of data binding on the fly in Silverlight
Can you not use the SelectedDateFormat property of the datepicker? If you want to do this once could you not create your own usercontrol that derives from the original with this value preset, then use your derived control throughout your app?
Kindness,
Dan
Shot in the dark, but does changing the browser's Language Preference make a differnence? I.e. in IE Tools-->Internet Options-->Languages.
HTH
Mark
You can set the date format for your entire application in the application start up event as follows.This will override any regional settings on the users machine
Thread.CurrentThread.CurrentCulture = (CultureInfo)Thread.CurrentThread.CurrentCulture.Clone();
Thread.CurrentThread.CurrentCulture.DateTimeFormat.ShortDatePattern = dd/MM/yyyy";
Related
I'm currently using the Extended WPF Toolkit and from that i'm using the Propertybox. This box displays all properties of a bound element. While this works great, there is one problem. I'm using Nullable... so it does not display this enum correctly (it just gives a textbox). If i changed the enum to a normal enum (not nullable), then it displays the items correctly in a combobox.
To solve this, i tried the IItemsSource interface as described in the documentation, but this won't allow me to add a "null" value either.
I know i could solve this by adding a fake "null" value to my enumlist, but i would like to avoid this. Does anyone here know how i could make my nullable display correctly?
Kind regards
Tom
Control documentation:
https://wpftoolkit.codeplex.com/wikipage?title=PropertyGrid
UPDATE SOLUTION:
I "solved" it by using a different control. http://www.codeproject.com/Articles/87715/Native-WPF-4-PropertyGrid. This grid supports it out of the box.
SOLUTION: I "solved" it by using a different control. https://github.com/xceedsoftware/wpftoolkit. This grid supports Nullable out of the box, and has some filtering functions for the properties you want to display that are not included in the Community Edition of the WPF Toolkit.
Update 2020: Added link to current webpage.
I have set two different cultures to the thread as:
Thread.CurrentThread.CurrentCulture = "fi-FI"
Thread.CurrentThread.CurrentUICulture = "en-Us"
But the calender text is shown in Finnish culture.
I need to keep the Text(Translations) based on CurrentUICulture and Text Format based on CurrentCulture.
Can you please suggest how can it be done for it?
That is not possible. The Calendar control only reacts to the CurrentCulture value. CurrentUICulture is used by the ResourceManager to load up different strings, images etc. used in the UI, but that is not where the day/month names are stored. They are part of the .NET framework itself. To get the functionality you want you will have to write your own implementation of the DatePicker and/or TimePicker controls. Perhaps you could download the code for the Silverlight Toolkit and use that as a base for your own implementation. What you are looking for is basically a way of overriding the names of months and days manually. Maybe it is even possible to extend the controls and add that functionality on top, but I doubt it.
I want to take advantage of DateTimePicker's date validation, but the calendar seemed cumbersome to our customers for setting the date (they'd rather do it using just the keyboard, tabbing their way through the form).
So I took a long look at the documentation and found that one way to get rid of the calendar was setting the ShowUpDown property to true. So I got this:
However, our customers are now saying that they don't want to use the spin button, and therefore they don't want it to be visible/accesible. i.e. they want this:
However, if i set ShowUpDown to false, I'm back to the calendar. Is there another way?
Had to roll my own Custom Control. Luckily, some other guy from the team has already written custom controls so I have example code to get started. Anyway, what good is a framework if I have to do this kind of things myself? Hope they solved this in .net 4.5...
EDIT: Using a MaskedTextBox with ValidatingType = typeof(System.Date) is a better solution. Sorry .NET!
My RIA enabled Silverlight Application is setting the thread culture in the App constructor (this is absolutley okay since it is an intranet application and will never ever be used by someone who is not german):
public App() {
InitializeComponent();
Thread.CurrentThread.CurrentCulture = new CultureInfo("de-DE");
}
It does what it should, the DataForms are displaying datetime values in german notation. BUT: it is spontaneously changing to en-US notation when navigating between items in the data source that is bound to the DataForm. Why?
It seems that the thread culture is not inherited by every control. Just for fun I displayed the Language of the control, and it was alwas set to en-US. To solve this, I hard coded the language de-DE in the style for the DataForm.
The same problem was described by Hannes (in german). Surprisingly in this case it was exactly the other way round: the DataForm was german, but the grid was english.
As Marc Wittke said, the thread culture is not inherited by every control (why on earth???)
Any way, you do not need to hardcode the values, this put this line in your Control constructor:
Language = XmlLanguage.GetLanguage(CultureInfo.CurrentCulture.Name);
And you control will use the CurrentCulture.
Cheers,
André
I am searching for a DateTimePicker control which can be used as a textbox so user can enter date/time data at will (ie; type in the string "11/09/2008 12:30:00") or can select date/time from a drop down list that contains a calendar/time box (what i meant is that this control can provide both options as mentioned). If you have found such a flexible control (and free too) please give me the needed information to obtain it.
There's the DatePicker and Calendar controls from the WPF team, but I don't believe they handle times (as in your example) - just dates. Worth a look though.
Have a look at this WPF Date Picker question.
Cheers
Telerik has a decent DateTimePicker control but it's not free.
Old question, but for anyone interested... Extended WPF Toolkit™ Community Edition is free (also has a premium option) and contains a DateTimePicker which I have found to be very useful in WPF!
I am not sure whether you don't want to use JQuery or not aware of it. But here is this free/open source date time picker from JQuery which does exactly what you are looking for, plus lot more.