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How to use RelayCommand method of AppUIBasics.Common.RelayCommand class

Best WinAppDriver code snippet using AppUIBasics.Common.RelayCommand.RelayCommand

RelayCommand.cs

Source:RelayCommand.cs

...3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using System.Windows.Input;7// Taken from: https://raw.githubusercontent.com/Microsoft/Windows-universal-samples/master/Samples/XamlUIBasics/cs/AppUIBasics/Common/RelayCommand.cs8namespace FluentFiles.Common9{10    /// <summary>11    /// A command whose sole purpose is to relay its functionality 12    /// to other objects by invoking delegates. 13    /// The default return value for the CanExecute method is 'true'.14    /// <see cref="RaiseCanExecuteChanged"/> needs to be called whenever15    /// <see cref="CanExecute"/> is expected to return a different value.16    /// </summary>17    public class RelayCommand : ICommand18    {19        private readonly Action _execute;20        private readonly Func<bool> _canExecute;21        /// <summary>22        /// Raised when RaiseCanExecuteChanged is called.23        /// </summary>24        public event EventHandler CanExecuteChanged;25        /// <summary>26        /// Creates a new command that can always execute.27        /// </summary>28        /// <param name="execute">The execution logic.</param>29        public RelayCommand(Action execute)30            : this(execute, null)31        {32        }33        /// <summary>34        /// Creates a new command.35        /// </summary>36        /// <param name="execute">The execution logic.</param>37        /// <param name="canExecute">The execution status logic.</param>38        public RelayCommand(Action execute, Func<bool> canExecute)39        {40            if (execute == null)41                throw new ArgumentNullException("execute");42            _execute = execute;43            _canExecute = canExecute;44        }45        /// <summary>46        /// Determines whether this <see cref="RelayCommand"/> can execute in its current state.47        /// </summary>48        /// <param name="parameter">49        /// Data used by the command. If the command does not require data to be passed, this object can be set to null.50        /// </param>51        /// <returns>true if this command can be executed; otherwise, false.</returns>52        public bool CanExecute(object parameter)53        {54            return _canExecute == null ? true : _canExecute();55        }56        /// <summary>57        /// Executes the <see cref="RelayCommand"/> on the current command target.58        /// </summary>59        /// <param name="parameter">60        /// Data used by the command. If the command does not require data to be passed, this object can be set to null.61        /// </param>62        public void Execute(object parameter)63        {64            _execute();65        }66        /// <summary>67        /// Method used to raise the <see cref="CanExecuteChanged"/> event68        /// to indicate that the return value of the <see cref="CanExecute"/>69        /// method has changed.70        /// </summary>71        public void RaiseCanExecuteChanged()72        {73            var handler = CanExecuteChanged;74            if (handler != null)75            {76                handler(this, EventArgs.Empty);77            }78        }79    }80    public class RelayCommand<T> : ICommand81    {82        private readonly Action<T> _execute;83        private readonly Predicate<T> _canExecute;84        /// <summary>85        ///     Occurs when changes occur that affect whether or not the command should execute.86        /// </summary>87        public event EventHandler CanExecuteChanged;88        /// <summary>89        ///     Initializes a new instance of <see cref="DelegateCommand{T}" />.90        /// </summary>91        /// <param name="execute">92        ///     Delegate to execute when Execute is called on the command.  This can be null to just hook up a93        ///     CanExecute delegate.94        /// </param>95        /// <remarks><seealso cref="CanExecute" /> will always return true.</remarks>96        public RelayCommand(Action<T> execute)97            : this(execute, null)98        {99        }100        /// <summary>101        ///     Creates a new command.102        /// </summary>103        /// <param name="execute">The execution logic.</param>104        /// <param name="canExecute">The execution status logic.</param>105        public RelayCommand(Action<T> execute, Predicate<T> canExecute)106        {107            if (execute == null)108                throw new ArgumentNullException("execute");109            _execute = execute;110            _canExecute = canExecute;111        }112        /// <summary>113        ///     Defines the method that determines whether the command can execute in its current state.114        /// </summary>115        /// <param name="parameter">116        ///     Data used by the command.  If the command does not require data to be passed, this object can117        ///     be set to null.118        /// </param>119        /// <returns>...

RelayCommand

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Windows.UI.Xaml;7using Windows.UI.Xaml.Controls;8using Windows.UI.Xaml.Controls.Primitives;9using Windows.UI.Xaml.Data;10using Windows.UI.Xaml.Input;11using Windows.UI.Xaml.Media;12using Windows.UI.Xaml.Navigation;13{14    {15        public MainPage()16        {17            this.InitializeComponent();18        }19        private void Button_Click(object sender, RoutedEventArgs e)20        {21            this.Frame.Navigate(typeof(BlankPage1));22        }23    }24}25using System;26using System.Collections.Generic;27using System.Linq;28using System.Text;29using System.Threading.Tasks;30using Windows.UI.Xaml;31using Windows.UI.Xaml.Controls;32using Windows.UI.Xaml.Controls.Primitives;33using Windows.UI.Xaml.Data;34using Windows.UI.Xaml.Input;35using Windows.UI.Xaml.Media;36using Windows.UI.Xaml.Navigation;37{38    {39        public BlankPage1()40        {41            this.InitializeComponent();42        }43        private void Button_Click(object sender, RoutedEventArgs e)44        {45            this.Frame.Navigate(typeof(MainPage));46        }47    }48}49using System;50using System.Collections.Generic;51using System.Linq;52using System.Text;53using System.Threading.Tasks;54using Windows.UI.Xaml;55using Windows.UI.Xaml.Controls;56using Windows.UI.Xaml.Controls.Primitives;57using Windows.UI.Xaml.Data;58using Windows.UI.Xaml.Input;59using Windows.UI.Xaml.Media;60using Windows.UI.Xaml.Navigation;

RelayCommand

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using System.Windows.Input;7{8    {9        private Action<object> _execute;10        private Predicate<object> _canExecute;11        public RelayCommand(Action<object> execute)12            : this(execute, null)13        {14        }15        public RelayCommand(Action<object> execute, Predicate<object> canExecute)16        {17            _execute = execute;18            _canExecute = canExecute;19        }20        public bool CanExecute(object parameter)21        {22            return _canExecute == null ? true : _canExecute(parameter);23        }24        {25            {26                if (_canExecute != null)27                    CommandManager.RequerySuggested += value;28            }29            {30                if (_canExecute != null)31                    CommandManager.RequerySuggested -= value;32            }33        }34        public void Execute(object parameter)35        {36            _execute(parameter);37        }38    }39}

RelayCommand

Using AI Code Generation

1using System;2using System.Windows.Input;3using AppUIBasics.Common;4{5    {6        private ICommand _navigateCommand;7        public ICommand NavigateCommand => _navigateCommand ?? (_navigateCommand = new RelayCommand<string>(Navigate));8        private void Navigate(string destination)9        {10            switch (destination)11            {12                    NavView_Navigate("Home", new Microsoft.UI.Xaml.Media.Animation.EntranceNavigationTransitionInfo());13                    break;14                    NavView_Navigate("Settings", new Microsoft.UI.Xaml.Media.Animation.EntranceNavigationTransitionInfo());15                    break;16                    break;17            }18        }19    }20}21private void Button_Click(object sender, RoutedEventArgs e)22        {23            this.Frame.Navigate(typeof(Page2));24        }25<Button x:Name="btnNextPage" Content="Next Page" Command="{Binding NavigateCommand}" CommandParameter="Page2" />26private void Button_Click(object sender, RoutedEventArgs e)27        {28            this.Frame.Navigate(typeof(Page2));29        }30<Button x:Name="btnNextPage" Content="Next Page" Command="{Binding NavigateCommand}" CommandParameter="Page2" />

RelayCommand

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.IO;4using System.Linq;5using System.Runtime.InteropServices.WindowsRuntime;6using Windows.Foundation;7using Windows.Foundation.Collections;8using Windows.UI.Xaml;9using Windows.UI.Xaml.Controls;10using Windows.UI.Xaml.Controls.Primitives;11using Windows.UI.Xaml.Data;12using Windows.UI.Xaml.Input;13using Windows.UI.Xaml.Media;14using Windows.UI.Xaml.Navigation;15{16    {17        public Page4()18        {19            this.InitializeComponent();20        }21    }22}23    <Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">24using System;25using System.Collections.Generic;26using System.IO;27using System.Linq;28using System.Runtime.InteropServices.WindowsRuntime;29using Windows.Foundation;30using Windows.Foundation.Collections;31using Windows.UI.Xaml;32using Windows.UI.Xaml.Controls;33using Windows.UI.Xaml.Controls.Primitives;34using Windows.UI.Xaml.Data;35using Windows.UI.Xaml.Input;36using Windows.UI.Xaml.Media;37using Windows.UI.Xaml.Navigation;38{

RelayCommand

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using AppUIBasics.Common;7using Windows.UI.Xaml;8using Windows.UI.Xaml.Controls;9{10    {11        public RelayCommand ButtonCommand { get; private set; }12        public CommandPage()13        {14            this.InitializeComponent();15            ButtonCommand = new RelayCommand(OnButtonCommand);

RelayCommand

Using AI Code Generation

1{2    {3        private Action<object> execute;4        private Predicate<object> canExecute;5        public RelayCommand(Action<object> execute, Predicate<object> canExecute = null)6        {7            this.execute = execute;8            this.canExecute = canExecute;9        }10        public bool CanExecute(object parameter)11        {12            return canExecute == null || canExecute(parameter);13        }14        {15            add { CommandManager.RequerySuggested += value; }16            remove { CommandManager.RequerySuggested -= value; }17        }18        public void Execute(object parameter)19        {20            execute(parameter);21        }22    }23}24{25    {26        private Action<object> execute;27        private Predicate<object> canExecute;28        public RelayCommand(Action<object> execute, Predicate<object> canExecute = null)29        {30            this.execute = execute;31            this.canExecute = canExecute;32        }33        public bool CanExecute(object parameter)34        {35            return canExecute == null || canExecute(parameter);36        }37        {38            add { CommandManager.RequerySuggested += value; }39            remove { CommandManager.RequerySuggested -= value; }40        }41        public void Execute(object parameter)42        {43            execute(parameter);44        }45    }46}47{48    {49        private Action<object> execute;50        private Predicate<object> canExecute;51        public RelayCommand(Action<object> execute, Predicate<object> canExecute = null)52        {53            this.execute = execute;54            this.canExecute = canExecute;55        }56        public bool CanExecute(object parameter)57        {58            return canExecute == null || canExecute(parameter);59        }60        {61            add { CommandManager.RequerySuggested += value; }62            remove { CommandManager.RequerySuggested -= value; }63        }

RelayCommand

Using AI Code Generation

1private RelayCommand _navigateCommand;2{3    {4            ?? (_navigateCommand = new RelayCommand(5            () =>6            {7            }));8    }9}10<Button Content="Navigate" Command="{Binding NavigateCommand}" />11private void Button_Click(object sender, RoutedEventArgs e)12{13}14private void Button_Click(object sender, RoutedEventArgs e)15{16}17private void Button_Click(object sender, RoutedEventArgs e)18{19}20private void Button_Click(object sender, RoutedEventArgs e)21{22}

RelayCommand

Using AI Code Generation

1{2    {3        return new RelayCommand(() => MyMethod());4    }5}6<Button Content="Click Me" Command="{Binding MyCommand}" />7{8    {9        return new RelayCommand(() => MyMethod(), () => CanExecute);10    }11}12<Button Content="Click Me" Command="{Binding MyCommand}" />13{14    {15        return new RelayCommand(() => MyMethod(), (parameter) => CanExecute);16    }17}18<Button Content="Click Me" Command="{Binding MyCommand}" />19{20    {21        return new RelayCommand(() => MyMethod(), (parameter) => CanExecute, false);22    }23}24<Button Content="Click Me" Command="{Binding MyCommand}" />25{26    {27        return new RelayCommand(() => MyMethod(), (parameter) => CanExecute, true);28    }29}30<Button Content="Click Me" Command="{Binding MyCommand}" />31{32    {33        return new RelayCommand(() => MyMethod(), (parameter) => CanExecute, true);34    }35}36<Button Content="Click Me" Command="{Binding MyCommand}" />

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