/// <summary>
/// Creates a new command.
/// </summary>
/// <param name="execute">The execution logic.</param>
/// <param name="canExecute">The execution status logic.</param>
public RelayCommand(Action <object> execute, Predicate <object> canExecute)
{
Diag.DataBindingPresentation();
if (execute == null)
{
throw new ArgumentNullException("execute");
}
_execute = execute;
_canExecute = canExecute;
try
{
Diag.UpdateLog("(5) " + this.GetType().FullName + ";\t" + System.Reflection.MethodBase.GetCurrentMethod().Name + ";\t" +
_execute.Method.Name + ";\t" +
_execute.Method.ToString() + ";\t" +
_execute.Target.ToString());
}
catch (Exception ex)
{
Diag.UpdateLog("(5) " + this.GetType().FullName + ";\t" + System.Reflection.MethodBase.GetCurrentMethod().Name + ";\t" + ex.Message);
}
}
/// <summary>
/// Creates a new command that can always execute.
/// </summary>
/// <param name="execute">The execution logic.</param>
public RelayCommand(Action <object> execute) : this(execute, null)
{
Diag.DataBindingPresentation();
try
{
Diag.UpdateLog("(4) " + this.GetType().FullName + ";\t" + System.Reflection.MethodBase.GetCurrentMethod().Name + ";\t" + execute.ToString());
}
catch (Exception ex)
{
Diag.UpdateLog("(4) " + this.GetType().FullName + ";\t" + System.Reflection.MethodBase.GetCurrentMethod().Name + ";\t" + ex.Message);
}
}
static App()
{
Diag.UpdateLog(true, "--------------------------------------------------------------------------");
Diag.DataBindingPresentation();
// This code is used to test the app when using other cultures.
//
//System.Threading.Thread.CurrentThread.CurrentCulture =
// System.Threading.Thread.CurrentThread.CurrentUICulture =
// new System.Globalization.CultureInfo("it-IT");
// Ensure the current culture passed into bindings is the OS culture.
// By default, WPF uses en-US as the culture, regardless of the system settings.
//
FrameworkElement.LanguageProperty.OverrideMetadata(
typeof(FrameworkElement),
new FrameworkPropertyMetadata(XmlLanguage.GetLanguage(CultureInfo.CurrentCulture.IetfLanguageTag)));
}
//[DebuggerStepThrough]
public void Execute(object parameter)
{
Diag.UpdateLog("(341567) Relay Command Execute()\t" + this.ToString());
_execute.Invoke(parameter);
}
protected override void OnStartup(StartupEventArgs e)
{
base.OnStartup(e);
MainWindow _mainWindow = new MainWindow();
// Create the ViewModel to which
// the main _mainWindow binds.
string path = "Data/customers.xml";
MainWindowViewModel _mainWindowViewModel = new MainWindowViewModel(path);
#region MainWindow KeyDown
//Delegate to handle KeyDown events-----------------------
KeyEventHandler KeyDown = delegate(object sender, KeyEventArgs arg)
{
if (arg.Key == Key.F4)
{
_mainWindowViewModel.OnToggleButtonClicked();
}
};
//Hook to capture KeyDown events
_mainWindow.KeyDown += KeyDown;
#endregion MainWindow KeyDown
// When the ViewModel asks to be closed,
// close the _mainWindow.
EventHandler handler = null;
handler = delegate
{
try
{
Diag.UpdateLog("(1)\t" + GetType().FullName + ";\t" + System.Reflection.MethodBase.GetCurrentMethod().Name);
}
catch (Exception ex)
{
Diag.UpdateLog("(1)\t" + GetType().FullName + ";\t" + System.Reflection.MethodBase.GetCurrentMethod().Name + ";\t" + ex.Message);
}
_mainWindowViewModel.WSVMRequestClose -= handler;
_mainWindowViewModel.MainWindowViewModelRequestClose -= handler;
_mainWindow.KeyDown -= KeyDown;
_mainWindow.Close();
};
_mainWindowViewModel.WSVMRequestClose += handler;
_mainWindowViewModel.MainWindowViewModelRequestClose += handler;
// Allow all controls in the _mainWindow to
// bind to the ViewModel by setting the
// DataContext, which propagates down
// the element tree.
_mainWindow.DataContext = _mainWindowViewModel;
_mainWindow.Show();
}
