static void Main(string[] args)
{
PerformCalculation pc = Multiply; //[0] of invocationList
pc = pc + Subtract; // [1] of invocationList
pc += Divide; // [2] of invocationList
//pc -= Subtract;//take one method out of the list.
pc -= Multiply;
NewMethod nm = new NewMethod();
pc += nm.NewClassMethod;
SampleObject sampleO = new SampleObject();// the object that will be sent in to the delegate
sampleO.X = 10.0;
sampleO.Y = 100.0;
sampleO.Total = 0;
pc(sampleO); // fire off the delegate
System.Console.WriteLine($"The 'Total' Property in the SampleObject is {sampleO.Total}."); //gives the result of Divide() only
System.Console.WriteLine("\nStarting ForEach loop.\n");
//double result1 = 0;
foreach (Delegate item in pc.GetInvocationList())
{
if (sampleO.Total == 0)
{
item.DynamicInvoke(sampleO);
//System.Console.WriteLine(result1);
}
else
{
item.DynamicInvoke(sampleO);
// System.Console.WriteLine(result1);
}
}
System.Console.WriteLine($"\tsample.Total is {sampleO.Total}.");
}
public void NewClassMethod(SampleObject x)
{
x.Total = Math.Pow(x.X, x.Y);
}
//method 3
public static void Divide(SampleObject x)
{
x.Total = x.X / x.Y;
}
//method 2
public static void Subtract(SampleObject x)
{
x.Total = x.X - x.Y;
}
// method 1
public static void Multiply(SampleObject x)
{
x.Total = x.X * x.Y;
}
public void NewClassMethod(SampleObject x)
{
//x.Total = Math.Pow(x.X, x.Y);
Console.WriteLine($"In the NewClassMethod Method");
}
//method 3
public static void Divide(SampleObject x)
{
x.Total = x.X / x.Y;
Console.WriteLine($"In the Divide Method");
}
//method 2
public static void Subtract(SampleObject x)
{
x.Total = x.X - x.Y;
Console.WriteLine($"In the Subtract Method");
}
// method 1
public static void Multiply(SampleObject x)
{
x.Total = x.X * x.Y;
Console.WriteLine($"In the Multiply Method");
}