How do i refactor this code by using Action<t> or Func<t> delegates
- by user330612
I have a sample program, which needs to execute 3 methods in a particular order.
And after executing each method, should do error handling. Now i did this in a normal fashion, w/o using delegates like this.
class Program
{
public static void Main()
{
MyTest();
}
private static bool MyTest()
{
bool result = true;
int m = 2;
int temp = 0;
try
{
temp = Function1(m);
}
catch (Exception e)
{
Console.WriteLine("Caught exception for function1" + e.Message);
result = false;
}
try
{
Function2(temp);
}
catch (Exception e)
{
Console.WriteLine("Caught exception for function2" + e.Message);
result = false;
}
try
{
Function3(temp);
}
catch (Exception e)
{
Console.WriteLine("Caught exception for function3" + e.Message);
result = false;
}
return result;
}
public static int Function1(int x)
{
Console.WriteLine("Sum is calculated");
return x + x;
}
public static int Function2(int x)
{
Console.WriteLine("Difference is calculated ");
return (x - x);
}
public static int Function3(int x)
{
return x * x;
}
}
As you can see, this code looks ugly w/ so many try catch loops, which are all doing the same thing...so i decided that i can use delegates to refactor this code so that Try Catch can be all shoved into one method so that it looks neat. I was looking at some examples online and couldnt figure our if i shud use Action or Func delegates for this. Both look similar but im unable to get a clear idea how to implement this. Any help is gr8ly appreciated. I'm using .NET 4.0, so im allowed to use anonymous methods n lambda expressions also for this
Thanks
