Showing posts with label Invoke with out param. Show all posts
Showing posts with label Invoke with out param. Show all posts

Tuesday, May 19, 2009

Invoke with out param

Here is a trick inspired by Visual C# Forums and C# MVP Mattias Sjögren. In this code snippet int.TryParse() method is called using reflection and get result from out parameter.

int parNum = 0; string parText = "99"; object[] methodParms = new object[] { parText, parNum };  MethodInfo methInfo = parNum.GetType().GetMethod("TryParse", new Type[] { typeof(string), typeof(int).MakeByRefType() }); methInfo.Invoke(null, methodParms); parNum = (int)methodParms[1]; Console.WriteLine("Parsed number:{0}", parNum);