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

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

RelayCommand.cs

Source:RelayCommand.cs

...9{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>120        ///     true if this command can be executed; otherwise, false.121        /// </returns>122        public bool CanExecute(object parameter)123        {124            return _canExecute == null ? true : _canExecute((T)parameter);125        }126        /// <summary>127        ///     Defines the method to be called when the command is invoked.128        /// </summary>129        /// <param name="parameter">130        ///     Data used by the command. If the command does not require data to be passed, this object can be131        ///     set to <see langword="null" />.132        /// </param>133        public void Execute(object parameter)134        {135            _execute((T)parameter);136        }...

CanExecute

Using AI Code Generation

1{2    {3        private readonly Action<object> _execute;4        private readonly Predicate<object> _canExecute;5        public RelayCommand(Action<object> execute)6            : this(execute, null)7        {8        }9        public RelayCommand(Action<object> execute, Predicate<object> canExecute)10        {11            if (execute == null)12                throw new ArgumentNullException("execute");13            _execute = execute;14            _canExecute = canExecute;15        }16        public bool CanExecute(object parameter)17        {18            return _canExecute == null ? true : _canExecute(parameter);19        }20        public event EventHandler CanExecuteChanged;21        public void Execute(object parameter)22        {23            _execute(parameter);24        }25        public void RaiseCanExecuteChanged()26        {27            if (CanExecuteChanged != null)28            {29                CanExecuteChanged(this, EventArgs.Empty);30            }31        }32    }33}34{35    {36        public SampleDataGroup(string uniqueId, string title, string subtitle, string imagePath, string description)37        {38            this.UniqueId = uniqueId;39            this.Title = title;40            this.Subtitle = subtitle;41            this.ImagePath = imagePath;42            this.Description = description;43        }44        public string UniqueId { get; private set; }45        public string Title { get; private set; }46        public string Subtitle { get; private set; }47        public string ImagePath { get; private set; }48        public string Description { get; private set; }49        public override string ToString()50        {51            return this.Title;52        }53    }54}55{56    {57        public SampleDataItem(string uniqueId, string title, string subtitle, string imagePath, string description, string content)58        {59            this.UniqueId = uniqueId;60            this.Title = title;61            this.Subtitle = subtitle;62            this.ImagePath = imagePath;63            this.Description = description;64            this.Content = content;65        }66        public string UniqueId { get; private set; }67        public string Title { get; private set; }68        public string Subtitle { get; private set; }69        public string ImagePath {

CanExecute

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.Data;9using Windows.UI.Xaml.Input;10using Windows.UI.Xaml.Media;11using Windows.UI.Xaml.Navigation;12using AppUIBasics.Common;13using AppUIBasics.Data;14using Windows.UI.Xaml.Media.Imaging;15using Windows.UI.Xaml.Media.Animation;16using Windows.UI.Xaml.Controls.Primitives;17using Windows.UI.Xaml.Automation.Peers;18using Windows.UI.Xaml.Automation.Provider;19using Windows.UI.Core;20using Windows.UI;21using Windows.UI.ViewManagement;22using Windows.UI.Xaml.Hosting;23{24    {25        private NavigationViewItem selectedItem;26        private List<NavigationViewItem> menuItems = new List<NavigationViewItem>();27        private List<NavigationViewItem> topNavMenuItems = new List<NavigationViewItem>();28        private List<NavigationViewItem> footerMenuItems = new List<NavigationViewItem>();29        private List<NavigationViewItem> overflowItems = new List<NavigationViewItem>();30        private List<NavigationViewItem> topNavOverflowItems = new List<NavigationViewItem>();31        private List<NavigationViewItem> footerOverflowItems = new List<NavigationViewItem>();32        private List<NavigationViewItemBase> allMenuItems = new List<NavigationViewItemBase>();33        private List<NavigationViewItemBase> allTopNavMenuItems = new List<NavigationViewItemBase>();34        private List<NavigationViewItemBase> allFooterMenuItems = new List<NavigationViewItemBase>();35        private List<NavigationViewItemBase> allTopNavOverflowItems = new List<NavigationViewItemBase>();36        private List<NavigationViewItemBase> allFooterOverflowItems = new List<NavigationViewItemBase>();37        private List<NavigationViewItemBase> allOverflowItems = new List<NavigationViewItemBase>();38        public NavigationViewPage()39        {40            this.InitializeComponent();41            Loaded += NavigationViewPage_Loaded;42        }43        private void NavigationViewPage_Loaded(object sender, RoutedEventArgs e)44        {45            menuItems.Add(HomeItem);46            menuItems.Add(PlaylistsItem);47            menuItems.Add(AlbumsItem);48            menuItems.Add(StationsItem);49            menuItems.Add(DownloadsItem);50            menuItems.Add(VideosItem);

CanExecute

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Windows.UI.Xaml.Controls;7using Windows.UI.Xaml.Navigation;8{9    {10        public CommandingPage()11        {12            this.InitializeComponent();13        }14        protected override void OnNavigatedTo(NavigationEventArgs e)15        {16            base.OnNavigatedTo(e);17            List<SampleData> data = new List<SampleData>();18            data.Add(new SampleData() { Title = "Sample 1", Description = "Description for Sample 1" });19            data.Add(new SampleData() { Title = "Sample 2", Description = "Description for Sample 2" });20            data.Add(new SampleData() { Title = "Sample 3", Description = "Description for Sample 3" });21            data.Add(new SampleData() { Title = "Sample 4", Description = "Description for Sample 4" });22            data.Add(new SampleData() { Title = "Sample 5", Description = "Description for Sample 5" });23            data.Add(new SampleData() { Title = "Sample 6", Description = "Description for Sample 6" });24            listView.ItemsSource = data;25        }26        private void OnListViewItemClick(object sender, ItemClickEventArgs e)27        {28            var item = e.ClickedItem;29            var data = item as SampleData;30            if (data != null)31            {32                textBox.Text = data.Title + ": " + data.Description;33            }34        }35    }36    {37        public string Title { get; set; }38        public string Description { get; set; }39    }40}41using System;42using System.Collections.Generic;43using System.Linq;44using System.Text;45using System.Threading.Tasks;46using Windows.UI.Xaml.Controls;47using Windows.UI.Xaml.Navigation;48{49    {50        public CommandingPage()51        {52            this.InitializeComponent();53        }54        protected override void OnNavigatedTo(NavigationEventArgs e)

CanExecute

Using AI Code Generation

1private void OnClick(object sender, RoutedEventArgs e)2{3    if (command.CanExecute(null))4    {5        command.Execute(null);6    }7}8private void OnClick(object sender, RoutedEventArgs e)9{10    if (command.CanExecute(null))11    {12        command.Execute(null);13    }14}15private void OnClick(object sender, RoutedEventArgs e)16{17    if (command.CanExecute(null))18    {19        command.Execute(null);20    }21}22private void OnClick(object sender, RoutedEventArgs e)23{24    if (command.CanExecute(null))25    {26        command.Execute(null);27    }28}29private void OnClick(object sender, RoutedEventArgs e)30{31    if (command.CanExecute(null))32    {33        command.Execute(null);34    }35}36private void OnClick(object sender, RoutedEventArgs e)37{38    if (command.CanExecute(null))39    {40        command.Execute(null);41    }42}43private void OnClick(object sender, RoutedEventArgs e)44{45    if (command.CanExecute(null))46    {47        command.Execute(null);48    }49}50private void OnClick(object sender, RoutedEventArgs e)51{52    if (command.CanExecute(null))53    {54        command.Execute(null);55    }56}

CanExecute

Using AI Code Generation

1private void Button_Click(object sender, RoutedEventArgs e)2{3    if (this._command.CanExecute(null))4    {5        this._command.Execute(null);6    }7}8private void Button_Click(object sender, RoutedEventArgs e)9{10    if (this._command.CanExecute(null))11    {12        this._command.Execute(null);13    }14}15private void Button_Click(object sender, RoutedEventArgs e)16{17    if (this._command.CanExecute(null))18    {19        this._command.Execute(null);20    }21}22private void Button_Click(object sender, RoutedEventArgs e)23{24    if (this._command.CanExecute(null))25    {26        this._command.Execute(null);27    }28}29private void Button_Click(object sender, RoutedEventArgs e)30{31    if (this._command.CanExecute(null))32    {33        this._command.Execute(null);34    }35}36private void Button_Click(object sender, RoutedEventArgs e)37{38    if (this._command.CanExecute(null))39    {40        this._command.Execute(null);41    }42}43private void Button_Click(object sender, RoutedEventArgs e)44{45    if (this._command.CanExecute(null))46    {47        this._command.Execute(null);48    }49}50private void Button_Click(object sender, RoutedEventArgs e)51{

CanExecute

Using AI Code Generation

1private bool CanExecuteMethod()2{3    return true;4}5private void ExecuteMethod()6{7}8private void InitializeCommands()9{10    command = new AppUIBasics.Common.RelayCommand(ExecuteMethod, CanExecuteMethod);11}12private bool CanExecuteMethod()13{14    return true;15}16private void ExecuteMethod()17{18}19private void InitializeCommands()20{21    command = new AppUIBasics.Common.RelayCommand(ExecuteMethod, CanExecuteMethod);22}

CanExecute

Using AI Code Generation

1{2    private string _text;3    private ICommand _buttonCommand;4    public MainPage()5    {6        this.InitializeComponent();7    }8    {9        get { return _text; }10        set { _text = value; }11    }12    {13        {14            return _buttonCommand ?? (_buttonCommand =15            new RelayCommand(OnButtonCommand, CanExecuteButtonCommand));16        }17    }18    private void OnButtonCommand()19    {20    }21    private bool CanExecuteButtonCommand()22    {23        return !string.IsNullOrEmpty(Text);24    }25}26{27    private string _text;28    private ICommand _buttonCommand;29    public MainPage()30    {31        this.InitializeComponent();32    }33    {34        get { return _text; }35        set { _text = value; }36    }37    {38        {39            return _buttonCommand ?? (_buttonCommand =40            new RelayCommand(OnButtonCommand, CanExecuteButtonCommand));41        }42    }43    private void OnButtonCommand()44    {45    }46    private bool CanExecuteButtonCommand()47    {48        return !string.IsNullOrEmpty(Text);49    }50}51{52    private string _text;53    private ICommand _buttonCommand;54    public MainPage()55    {56        this.InitializeComponent();57    }58    {59        get { return _text; }60        set { _

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