C# and WPF tutorial files

2017-05-29 21:01:07 +01:00
parent dfdd754362
commit 1cb838df3a
107 changed files with 5760 additions and 0 deletions
--- a/WPF/03-TreeViewsSimpleViewModel/WpfTreeView/Directory/ViewModels/Base/RelayCommand.cs
+++ b/WPF/03-TreeViewsSimpleViewModel/WpfTreeView/Directory/ViewModels/Base/RelayCommand.cs
@ -0,0 +1,64 @@
+using System;
+using System.Windows.Input;
+
+namespace WpfTreeView
+{
+    /// <summary>
+    /// A basic command that runs an Action
+    /// </summary>
+    public class RelayCommand : ICommand
+    {
+        #region Private Members
+
+        /// <summary>
+        /// The action to run
+        /// </summary>
+        private Action mAction;
+
+        #endregion
+
+        #region Public Events
+
+        /// <summary>
+        /// The event thats fired when the <see cref="CanExecute(object)"/> value has changed
+        /// </summary>
+        public event EventHandler CanExecuteChanged = (sender, e) => { };
+
+        #endregion
+
+        #region Constructor
+
+        /// <summary>
+        /// Default constructor
+        /// </summary>
+        public RelayCommand(Action action)
+        {
+            mAction = action;
+        }
+
+        #endregion
+
+        #region Command Methods
+
+        /// <summary>
+        /// A relay command can always execute
+        /// </summary>
+        /// <param name="parameter"></param>
+        /// <returns></returns>
+        public bool CanExecute(object parameter)
+        {
+            return true;
+        }
+
+        /// <summary>
+        /// Executes the commands Action
+        /// </summary>
+        /// <param name="parameter"></param>
+        public void Execute(object parameter)
+        {
+            mAction();
+        }
+
+        #endregion
+    }
+}