This is a cursory question I can't quite answer.
The main program
class Program{
static void Main(string[] args){
Console.WriteLine("Begin");
var myClass = new MyClass();
Util.Print(myClass.Id);
Util.Print(myClass.Server);
Util.Print(myClass.Ping);
Console.WriteLine("End");
}
}
How do I implement the Util.Print method to get this output to the console:
Begin
Id
Server
Ping
End
Assuming you don't want to use strings, the most common answer is via an Expression - essentially emulating the missing infoof; you would have to use something like:
Console.WriteLine("Begin");
var myClass = new MyClass();
Util.Print(() => myClass.Id);
Util.Print(() => myClass.Server);
Util.Print(() => myClass.Ping);
Console.WriteLine("End");
Assuming they are all properties/fields (edit added method-call support):
public static class Util
{
public static void Print<T>(Expression<Func<T>> expr)
{
WriteExpression(expr);
}
public static void Print(Expression<Action> expr) // for "void" methods
{
WriteExpression(expr);
}
private static void WriteExpression(Expression expr)
{
LambdaExpression lambda = (LambdaExpression)expr;
switch (lambda.Body.NodeType)
{
case ExpressionType.MemberAccess:
Console.WriteLine(((MemberExpression)lambda.Body)
.Member.Name);
break;
case ExpressionType.Call:
Console.WriteLine(((MethodCallExpression)lambda.Body)
.Method.Name);
break;
default:
throw new NotSupportedException();
}
}
}
In addition to Marc's answer: here is an article which explains several ways to do what you want to do (one such method uses expressions).
public string Id {
get {
return "Id;"
}
}
Hehe erm, though I assume that's not what you mean :-( The answer will likely be something to do with reflection.
Take a look at http://msdn.microsoft.com/en-us/library/ms173183(VS.80).aspx
