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Categories / C# Tutorial / Class

 

Throw Exception from property setting

using System; using System.Collections.Generic; using System.Linq; using System.Text;     public class MyClass     {         public readonly string Name;         private int intVal;         public int Val         {             get             {                 return intVal;             }             set             {                 if (value >= 0 && value <= 10)                     intVal = value;                 else                     throw (new ArgumentOutOfRangeException("Val", value,"Val must be assigned a value between 0 and 10."));             }         }         public override string ToString()         {             return "Name: " + Name + "\nVal: " + Val;         }         private MyClass() : this("Default Name")         {         }         public MyClass(string newName)         {             Name = newName;             intVal = 0;         }     }     class Program     {         static void Main(string[] args)         {             MyClass myObj = new MyClass("My Object");             Console.WriteLine("myObj created.");             for (int i = -1; i <= 0; i++)             {                 try                 {                     myObj.Val = i;                 }                 catch (Exception e)                 {                     Console.WriteLine("Exception {0} thrown.", e.GetType().FullName);                     Console.WriteLine("Message:\n\"{0}\"", e.Message);                 }             }         }     }