对泛型T的属性操作

 public class PropertyHelper<T> 
   {      
      private T entiy;      

      public PropertyHelper(T t)       

    {  entiy = t;            

    BindingAttr = BindingFlags.Public | BindingFlags.Static | BindingFlags.Instance;      

    }      

  public BindingFlags BindingAttr { get; set; }      
  public T Entiy  { get { return entiy; } }   

  public object this[string name] { get{  return this[name, null];  } set { this[name,null] = value; }}       
 public object this[string name,object[] index] { get {  if (name == null) throw new ArgumentNullException("name");  object obj = null; 
try  {  
       PropertyInfo info = entiy.GetType().GetProperty(name, BindingAttr);  
       obj = info.GetValue(entiy, index);  }  
catch (Exception e)  
{ throw new Exception(e.Message);   }  
  return obj;  } 
set  {  if (name == null)  throw new ArgumentNullException("name"); 
       try   { PropertyInfo info = entiy.GetType().GetProperty(name, BindingAttr);
       info.SetValue(entiy,value,index); 
     }  
     catch (Exception e)  
     { 
       throw new Exception(e.Message); 
      } 
    } 
   } 
 }

PropertyHelper<BomG> bh = new PropertyHelper<BomG>(bomg);

string name = bh["Name"] as string;

2.string dec = "qazxswedc";

ProPertyHelper<string> dechelper = new PropertyHelper<string>(dec);

int leng = (int)dechelper["Length"] ;