un visualizzatore di eccezioni parte 1: helper

<p />using System; 
using System.Web; 
using System.Web.UI; 
using System.Web.UI.WebControls; 
using System.Reflection; 
using ReflectionExtension; 
namespace ReflectionExtension 
{ 
    public static class ObjectReflectionExtension 
    { 
        public static void AddHanlder(this Object objectEventRaiser, object objectBoundToDelegate, string methodName, string eventName) 
        { 
            if (objectEventRaiser == null | objectBoundToDelegate == null | string.IsNullOrEmpty(methodName) | string.IsNullOrEmpty(eventName)) 
            { 
                throw new ArgumentNullException(); 
            } 
            else 
            { 
                Type _dataSourceType = objectEventRaiser.GetType(); 
                EventInfo _eventInfo = _dataSourceType.GetEvent(eventName); 
                if (_eventInfo == null) 
                { 
                    throw new ArgumentException(string.Format("Impossibile trovare l'evento {0}", eventName)); 
                } 
                else 
                { 
                    MethodInfo _methodInfo = objectBoundToDelegate.GetType().GetMethod(methodName, BindingFlags.NonPublic | BindingFlags.Instance); 
                    if (_eventInfo == null) 
                    { 
                        throw new ArgumentException(string.Format("Impossibile trovare il metodo {0}", methodName)); 
                    } 
                    else 
                    { 
                        Delegate _delegate = Delegate.CreateDelegate(_eventInfo.EventHandlerType, objectBoundToDelegate, _methodInfo); 
                        _eventInfo.AddEventHandler(objectEventRaiser, _delegate); 
                    } 
                } 
            } 
        } 
        public static bool IsNull(this Object item) 
        { 
            return item == null; 
        } 
    } 
} 
namespace WebControlReflectionExtension 
{ 
    public static class WebControlReflectionExtension 
    { 
        public static void AddInsertedHandler(this DataSourceControl dataSourceControl, object objectBoundToDelegate, string methodName) 
        { 
            ObjectReflectionExtension.AddHanlder(dataSourceControl, objectBoundToDelegate, methodName, "Inserted"); 
        } 
        public static void AddDeleteddHandler(this DataSourceControl dataSourceControl, object objectBoundToDelegate, string methodName) 
        { 
            ObjectReflectionExtension.AddHanlder(dataSourceControl, objectBoundToDelegate, methodName, "Deleted"); 
        } 
        public static void AddUpdateddHandler(this DataSourceControl dataSourceControl, object objectBoundToDelegate, string methodName) 
        { 
            ObjectReflectionExtension.AddHanlder(dataSourceControl, objectBoundToDelegate, methodName, "Updated"); 
        } 
    } 
} 
<p />