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Commit ba88892

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author
ahotko
committed
Added Enums Sample
1 parent 5127d2f commit ba88892

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4 files changed

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4 files changed

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‎CSharp Code Samples/CodeSamples/Alterations/Extensions/ClassExtensions.cs‎

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@@ -1,5 +1,7 @@
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using System;
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using System.ComponentModel;
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using System.Linq;
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using System.Reflection;
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using System.Text;
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namespace CodeSamples.Alterations.Extensions
@@ -32,5 +34,30 @@ public static void WriteToConsole(this string value)
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{
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Console.WriteLine($"Contents Of String = {value}");
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}
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public static string GetDescription<T>(this T enumerationValue) where T : struct
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{
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Type type = enumerationValue.GetType();
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if (!type.IsEnum)
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{
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throw new ArgumentException("EnumerationValue must be of Enum type", "enumerationValue");
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}
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//Tries to find a DescriptionAttribute for a potential friendly name
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//for the enum
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MemberInfo[] memberInfo = type.GetMember(enumerationValue.ToString());
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if (memberInfo != null && memberInfo.Length > 0)
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{
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object[] attrs = memberInfo[0].GetCustomAttributes(typeof(DescriptionAttribute), false);
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if (attrs != null && attrs.Length > 0)
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{
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//Pull out the description value
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return ((DescriptionAttribute)attrs[0]).Description;
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}
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}
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//If we have no description attribute, just return the ToString of the enum
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return enumerationValue.ToString();
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}
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}
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}

‎CSharp Code Samples/CodeSamples/CodeSamples.csproj‎

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<Compile Include="Comparing\Equatable.cs" />
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<Compile Include="ConditionalDefines\ConditionalDefinesSample.cs" />
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<Compile Include="Constants.cs" />
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<Compile Include="Enums\EnumSample.cs" />
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<Compile Include="ISampleExecute.cs" />
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<Compile Include="MultiThreading\BackgroundWorkerSample.cs" />
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<Compile Include="MultiThreading\MultithreadingSample.cs" />
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using System;
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using System.ComponentModel;
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using CodeSamples.Alterations.Extensions;
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namespace CodeSamples.Enums
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{
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internal enum WeekDay
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{
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Monday,
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Tuesday,
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Wednesday,
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Thursday,
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Friday,
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Saturday,
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Sunday
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}
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internal enum Priority : short
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{
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Lowest = -2,
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Low = -1,
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Normal = 0,
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High = 1,
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Highest = 2
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}
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[Flags]
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internal enum SidesAndCorners
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{
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None = 0,
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Top = 1,
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Bottom = 2,
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Left = 4,
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Right = 8,
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//
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TopLeft = Top | Left,
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TopRight = Top | Right,
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BottomLeft = Bottom | Left,
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BottomRight = Bottom | Right,
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//
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Full = Top | Bottom | Left | Right
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}
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internal enum Status
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{
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[Description("Not Completed")]
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NotCompleted,
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Completed,
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Error
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}
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public class EnumSample : SampleExecute
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{
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private void OutputSidesAndCorners(SidesAndCorners sidesAndCorners)
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{
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Console.WriteLine($"SidesAndCorners Enum values: default={sidesAndCorners.ToString()}, string={sidesAndCorners.ToString("g")}, flags={sidesAndCorners.ToString("f")}, decimal={sidesAndCorners.ToString("d")}, hex=0x{sidesAndCorners.ToString("x")}");
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}
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public override void Execute()
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{
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Title("EnumSampleExecute");
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Section("Simple Enum");
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//'This must be Thursday,' said Arthur to himself, sinking low over his beer. 'I never could get the hang of Thursdays.'
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WeekDay weekDay = WeekDay.Thursday;
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Console.WriteLine($"weekDay Enum value: default={weekDay.ToString()}, string={weekDay.ToString("g")}, decimal={weekDay.ToString("d")}, hex=0x{weekDay.ToString("x")}");
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var enumValues = Enum.GetNames(typeof(WeekDay));
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Console.WriteLine("WeekDays Enum values:");
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foreach (string value in enumValues)
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{
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Console.WriteLine(value);
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}
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LineBreak();
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Section("Typed Enum (short)");
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Priority priority = Priority.Low;
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Console.WriteLine($"Priority Enum values: default={priority.ToString()}, string={priority.ToString("g")}, decimal={priority.ToString("d")}, hex=0x{priority.ToString("x")}");
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priority = Priority.Normal;
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Console.WriteLine($"Priority Enum values: default={priority.ToString()}, string={priority.ToString("g")}, decimal={priority.ToString("d")}, hex=0x{priority.ToString("x")}");
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priority = Priority.Highest;
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Console.WriteLine($"Priority Enum values: default={priority.ToString()}, string={priority.ToString("g")}, decimal={priority.ToString("d")}, hex=0x{priority.ToString("x")}");
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Section("Enum Flags");
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SidesAndCorners sidesAndCorners = SidesAndCorners.Bottom;
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OutputSidesAndCorners(sidesAndCorners);
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sidesAndCorners = SidesAndCorners.Full;
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OutputSidesAndCorners(sidesAndCorners);
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sidesAndCorners = SidesAndCorners.Top | SidesAndCorners.Bottom;
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OutputSidesAndCorners(sidesAndCorners);
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sidesAndCorners = SidesAndCorners.TopLeft;
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OutputSidesAndCorners(sidesAndCorners);
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//checking flags
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Console.WriteLine($"sidesAndCorners.Top is set={sidesAndCorners.HasFlag(SidesAndCorners.Top)}");
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Console.WriteLine($"sidesAndCorners.TopLeft is set={sidesAndCorners.HasFlag(SidesAndCorners.TopLeft)}");
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Console.WriteLine($"sidesAndCorners.Full is set={sidesAndCorners.HasFlag(SidesAndCorners.Full)}");
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Console.WriteLine($"sidesAndCorners.Bottom is set={sidesAndCorners.HasFlag(SidesAndCorners.Bottom)}");
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Section("Enum with Description");
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Status status= Status.NotCompleted;
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Console.WriteLine($"status value: default={status.ToString()}, string={status.ToString("g")}, decimal={status.ToString("d")}, hex=0x{status.ToString("x")}");
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var statusValues = Enum.GetValues(typeof(Status));
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Console.WriteLine("Status Enum values:");
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foreach (Status value in statusValues)
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{
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Console.WriteLine($"value={value.ToString()}, description={value.GetDescription<Status>()}");
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}
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LineBreak();
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Finish();
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}
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}
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}

‎CSharp Code Samples/CodeSamples/Program.cs‎

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using CodeSamples.Classes;
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using CodeSamples.Comparing;
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using CodeSamples.ConditionalDefines;
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using CodeSamples.Enums;
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using CodeSamples.MultiThreading;
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using CodeSamples.Patterns;
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using CodeSamples.SOLID.S01_SingleResponsibilityPrinciple_SRP;
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conditionalDefinesSample.Execute();
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#endregion
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#region Enums
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var enumSample = new EnumSample();
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enumSample.Execute();
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#endregion
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Console.WriteLine();
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Console.WriteLine("End Code Samples");
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