Static Constuctor

Author: ewdlop

CSharpClassLibrary/StaticConstructor/Animals.cs

@@ -0,0 +1,31 @@
+namespace CSharpClassLibrary.StaticConstructor;
+
+public class Animals
+{
+    private readonly string _description;
+    private readonly string _speciesBinomialName;
+
+    public string Description { get { return _description; } }
+    public string SpeciesBinomialName { get { return _speciesBinomialName; } }
+
+    private Animals(string description, string speciesBinomialName)
+    {
+        _description = description;
+        _speciesBinomialName = speciesBinomialName;
+    }
+
+    private static readonly Animals _dog;
+    private static readonly Animals _cat;
+    private static readonly Animals _boaConstrictor;
+
+    public static Animals Dog { get { return _dog; } }
+    public static Animals Cat { get { return _cat; } }
+    public static Animals BoaConstrictor { get { return _boaConstrictor; } }
+
+    static Animals()
+    {
+        _dog = new Animals("Man's best friend", "Canis familiaris");
+        _cat = new Animals("Small, typically furry, killer", "Felis catus");
+        _boaConstrictor = new Animals("Large, heavy-bodied snake", "Boa constrictor");
+    }
+}

CSharpClassLibrary/StaticConstructor/ScopeMonitor.cs

@@ -0,0 +1,14 @@
+namespace CSharpClassLibrary.StaticConstructor;
+
+class ScopeMonitor
+{
+    static string firstPart = "http://www.example.com/";
+    static string fullUrl;
+    static string urlFragment = "foo/bar";
+
+    static ScopeMonitor()
+    {
+        fullUrl = firstPart + urlFragment;
+
+    }
+}

CSharpClassLibrary/StaticConstructor/ViewModel.cs

@@ -0,0 +1,23 @@
+using System.Collections.ObjectModel;
+using System.Threading.Tasks;
+
+namespace CSharpClassLibrary.StaticConstructor;
+
+public class ViewModel<T>
+{
+    public ObservableCollection<T> Data { get; set; }
+
+    //static async method that behave like a constructor       
+    async public static Task<ViewModel<T>> BuildViewModelAsync()
+    {
+        //ObservableCollection<T> tmpData = await GetDataTask();
+        ObservableCollection<T> tmpData = null;
+        return new ViewModel<T>(tmpData);
+    }
+
+    // private constructor called by the async method
+    private ViewModel(ObservableCollection<T> Data)
+    {
+        this.Data = Data;
+    }
+}

DontRunMe/Program.cs

@@ -36,7 +36,7 @@ IEnumerable<bool> FourtyTwo(string filename, string[] args)
     //try
     //{
     //    var process = Process.Start(filename, args);
-    //    while (!process.HasExited)
+    //    while (!process.HasExited && process.Responding)
     //    {
     //        yield return false;
     //    }
@@ -54,4 +54,14 @@ IEnumerable<bool> FourtyTwo(string filename, string[] args)
     UriBuilder uri = new UriBuilder(codeBase);
     string path = Uri.UnescapeDataString(uri.Path);
     return Path.GetDirectoryName(path);
+}
+
+public record test
+{
+
+}
+
+public class X : test
+{
+
 }