static void Main(string[] args)
{
Operations operationObj = new Operations();
ArithmeticHandler arithObj1, arithObj2, arithObj3;
arithObj1 = new ArithmeticHandler(operationObj.Addition);
arithObj1 += new ArithmeticHandler(operationObj.Subtraction);
arithObj2 = new ArithmeticHandler(operationObj.Addition);
arithObj2 -= new ArithmeticHandler(operationObj.Subtraction);
////Multicasting a delegate
//arithObj3 = arithObj1 + arithObj2;
//Anonymous Method
ArithmeticHandler arithobj1 = delegate(int n1, int n2) { Console.WriteLine("Addition of {0} and {1} is {2}", n1, n2, n1 + n2); };
ArithmeticHandler1 arithobj2 = delegate(int n1, int n2) { return(n1 - n2); };
////Lambda Expression
ArithmeticHandler arithobj3 = (n1, n2) => { Console.WriteLine("Addition of {0} and {1} is {2}", n1, n2, n1 + n2); Console.WriteLine("Hello"); };
ArithmeticHandler1 arithobj4 = (n1, n2) => n1 - n2; //(x)=>n;()=>2;
//arithObj1(2, 3);
// arithObj2(30, 2);
arithobj3(6, 20);
// arithobj2(6, 3);
// arithobj1(20, 4);
//arithobj4(10, 4);
Console.WriteLine(arithobj4(10, 4));
Console.ReadKey();
}
static void Main(string[] args)
{
//Using Anonymous Method
ArithmeticHandler arithObj01 = delegate(int firstNumber, int secondNumber)
{
Console.WriteLine("Addition of {0} and {1} is {2}", firstNumber, secondNumber, firstNumber + secondNumber);
};
arithObj01(3, 4);
//Using Lambda Expression
ArithmeticHandler arithObj02 = (firstNumber, secondNumber) => { Console.WriteLine("Addition of {0} and {1} is {2}", firstNumber, secondNumber, firstNumber + secondNumber); };
arithObj02(3, 4);
Console.ReadKey();
}
/// <summary>
/// Initializes static members of the <see cref="FlowQueryHelper" /> class.
/// </summary>
static FlowQueryHelper()
{
ExpressionHandlerLock = new object();
CustomExpressionHandlers = new Dictionary <ExpressionType, HashSet <IExpressionHandler> >();
DefaultExpressionHandlers = new Dictionary <ExpressionType, HashSet <IExpressionHandler> >();
AddCallHandler(new AsHandler());
AddCallHandler(new SimpleMethodCallHandler(Projections.Avg, "Average"));
AddCallHandler(new LikeHandler());
AddCallHandler(new CountDistinctHandler());
AddCallHandler(new SimpleMethodCallHandler(Projections.Count, "Count"));
AddCallHandler(new SimpleMethodCallHandler(Projections.GroupProperty, "GroupBy"));
AddCallHandler(new SimpleMethodCallHandler(Projections.Max, "Max"));
AddCallHandler(new SimpleMethodCallHandler(Projections.Min, "Min"));
AddCallHandler(new ProjectHandler());
AddCallHandler(new RoundHandler());
AddCallHandler(new SubqueryHandler());
AddCallHandler(new SubstringHandler());
AddCallHandler(new SimpleMethodCallHandler(Projections.Sum, "Sum"));
AddCallHandler(new TrimHandler());
AddCallHandler(new TrimEndHandler());
AddCallHandler(new TrimStartHandler());
var conditionHandler = new ConditionHandler();
ConditionHandler.SupportedExpressionTypes.ForEach(x => AddHandler(x, conditionHandler));
var arithmeticHandler = new ArithmeticHandler();
ArithmeticHandler.SupportExpressionTypes.ForEach(x => AddHandler(x, arithmeticHandler));
AddHandler(ExpressionType.Add, new ConcatenationHandler());
AddHandler(ExpressionType.Coalesce, new CoalesceHandler());
AddHandler(ExpressionType.Conditional, new ConditionalHandler());
AddHandler(ExpressionType.Convert, new ConvertHandler());
AddHandler(ExpressionType.Lambda, new LambdaHandler());
AddHandler(ExpressionType.MemberAccess, new MemberAccessHandler());
AddHandler(ExpressionType.MemberInit, new MemberInitHandler());
AddHandler(ExpressionType.New, new NewHandler());
}
static void Main(string[] args)
{
Operations operationObj = new Operations();
ArithmeticHandler arithObj1, arithObj2, arithObj3;
arithObj1 = new ArithmeticHandler(operationObj.Addition);
arithObj2 = new ArithmeticHandler(operationObj.Subtraction);
//Multicasting a delegate
arithObj3 = arithObj1 + arithObj2;
arithObj1(2, 3);
arithObj2(3, 2);
arithObj3(6, 4);
Console.ReadKey();
}
