I want to write WPF MVVM application with Multilingual User Interface. (on same screen) I have a "change language" button.And I want to when I clicked the button user interface language will change I want to use translating the UI English From Turkish and Turkish from English with a button.s I prepared all resx file and I m sharing all my codes. My codes work properly.(But language doesnt change when I click the button UI language doesnt change
I m sharing all my codes please help me.
//MainWindow.xaml It's my xaml class I use bindings and resources.
<Window x:Class = "WPFLocalization.MainWindow"
xmlns = "http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x = "http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local = "clr-namespace:WPFLocalization"
xmlns:p = "clr-namespace:WPFLocalization.Properties"
Title = "{x:Static p:Resources.Title}" Height = "350" Width = "604">
<Grid>
<TextBox x:Name = "textBox" HorizontalAlignment = "Left" Height = "23"
Margin = "128,45,0,0" TextWrapping = "Wrap" VerticalAlignment = "Top" Width = "304"/>
<Label x:Name = "label" Content = "{x:Static p:Resources.Name}"
HorizontalAlignment = "Left" Margin = "52,45,0,0" VerticalAlignment = "Top" Width = "86"/>
<TextBox x:Name = "textBox1" HorizontalAlignment = "Left" Height = "23"
Margin = "128,102,0,0" TextWrapping = "Wrap" VerticalAlignment = "Top" Width = "304"/>
<Label x:Name = "label1" Content = "{x:Static p:Resources.Address}"
HorizontalAlignment = "Left" Margin = "52,102,0,0" VerticalAlignment = "Top" Width = "86"/>
<TextBox x:Name = "textBox2" HorizontalAlignment = "Left" Height = "23"
Margin = "128,157,0,0" TextWrapping = "Wrap" VerticalAlignment = "Top" Width = "80"/>
<Label x:Name = "label2" Content = "{x:Static p:Resources.Age}"
HorizontalAlignment = "Left" Margin = "52,157,0,0" VerticalAlignment = "Top" Width = "86"/>
<Button x:Name = "button" Content = "{x:Static p:Resources.OK_Button}"
HorizontalAlignment = "Left" Margin = "128,241,0,0" VerticalAlignment = "Top" Width = "80"/>
<Button x:Name = "button1" Content = "{x:Static p:Resources.Cancel_Button}"
HorizontalAlignment = "Left" Margin = "265,241,0,0" VerticalAlignment = "Top" Width = "80">
</Button>
<Button x:Name = "button2" Content = "{x:Static p:Resources.Help_Button}"
HorizontalAlignment = "Left" Margin = "380,241,0,0" VerticalAlignment = "Top" Width = "70"/>
<Button x:Name="button3" Command= "{Binding ChangeButtonCommand}" Content= "{x:Static p:Resources.Change_Button}"
HorizontalAlignment="Left" Margin="470,241,0,0" VerticalAlignment="Top" Width="100"/>
</Grid>
</Window>
//LocalizationViewModel.cs It 's my MVVM class.
using System;
using System.Collections.Generic;
using System.Linq;
using System.ComponentModel;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Configuration;
using System.Globalization;
using System.Reflection;
using System.Resources;
namespace WPFLocalization
{
class LocalizationViewModel : ViewModelBase
{
public LocalizationViewModel()//Constructor
{
}
#region Commands
#region changeButtonCommand
private DelegateCommand _changeButtonCommand;
public DelegateCommand ChangeButtonCommand
{
get
{
return _changeButtonCommand ?? (_changeButtonCommand = new DelegateCommand(ExecuteLocalization, CanExecuteLocalization));
}
}
public bool CanExecuteLocalization()
{
return true;
}
public void ExecuteLocalization()
{
Thread.CurrentThread.CurrentUICulture = new CultureInfo ("en-US");
Thread.CurrentThread.CurrentCulture = new CultureInfo("en-US");
}
}
#endregion
#endregion
}
// DelegateCommand.cs// its constant.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Input;
namespace WPFLocalization
{
//https://www.codecompiled.com/wpf/implementing-icommand-in-wpf-using-mvvm/
public class DelegateCommand : ICommand
{
public event EventHandler CanExecuteChanged
{
add { CommandManager.RequerySuggested += value; }
remove { CommandManager.RequerySuggested -= value; }
}
private readonly Action _executeMethod;
private readonly Func<bool> _canExecuteMethod;
public DelegateCommand(Action executeMethod, Func<bool> canExecuteMethod)
{
_executeMethod = executeMethod;
_canExecuteMethod = canExecuteMethod;
}
//public void RaiseCanExecuteChanged()
//{
// if (CanExecuteChanged != null)
// CanExecuteChanged(this, new EventArgs());
//}
public bool CanExecute()
{
if (_canExecuteMethod != null)
{
return _canExecuteMethod();
}
return true;
}
public void Execute()
{
if (_executeMethod != null)
{
_executeMethod();
}
}
bool ICommand.CanExecute(object parameter)
{
return CanExecute();
}
void ICommand.Execute(object parameter)
{
Execute();
}
}
public class DelegateCommand<T> : ICommand
{
public event EventHandler CanExecuteChanged
{
add { CommandManager.RequerySuggested += value; }
remove { CommandManager.RequerySuggested -= value; }
}
private readonly Action<T> _executeMethod;
private readonly Func<T, bool> _canExecuteMethod;
#region Constructors
public DelegateCommand(Action<T> executeMethod)
{
_executeMethod = executeMethod;
}
public DelegateCommand(Action<T> executeMethod, Func<T, bool> canExecuteMethod)
{
_executeMethod = executeMethod;
_canExecuteMethod = canExecuteMethod;
}
#endregion
#region Public Methods
public bool CanExecute(T parameter)
{
if (_canExecuteMethod != null)
{
return _canExecuteMethod(parameter);
}
return true;
}
public void Execute(T parameter)
{
if (_executeMethod != null)
{
_executeMethod(parameter);
}
}
#endregion
#region ICommand Members
bool ICommand.CanExecute(object parameter)
{
if (parameter == null &&
typeof(T).IsValueType)
{
return _canExecuteMethod == null;
}
return CanExecute((T)parameter);
}
void ICommand.Execute(object parameter)
{
Execute((T)parameter);
}
#endregion
}
}
I don't take error message. Only UI doesn't change. please help me
