returning largest int variable from object

Question

What is the most efficient way of returning or finding the largest int variable from an object. For example, object A has many int variables. I am just wandering is there a way to iterate through an object's variables without resorting to a long and drawn out if statement.

Vulpes · Answer

Yes, you can iterate through an object's variables (i.e. its fields) using reflection. Here's some example code: using System; using System.Reflection; class MyClass { private int i; protected int j; public int k; private long l; public int I { get{ return i; } } public MyClass(int i, int j, int k, long l) { this.i = i; this.j = j; this.k = k; this.l = l; } } class Test { static void Main() { MyClass mc = new MyClass(1, 3, 2, 4); Type t = typeof(MyClass); BindingFlags bf = BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic; FieldInfo[] fia = t.GetFields(bf); int max = Int32.MinValue; string maxFieldName = null; foreach(FieldInfo fi in fia) { if (fi.FieldType == typeof(int)) // 'l' will be excluded as type long, not int { int temp = (int)fi.GetValue(mc); if (temp > max) { max = temp; maxFieldName = fi.Name; } } } Console.WriteLine("The int field '{0}' has the maximum value of {1}", maxFieldName, max); Console.ReadKey(); } }

returning largest int variable from object

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