paip.使用泛型时未能找到类型或命名空间名称“T

paip.使用泛型时未能找到类型或命名空间名称“T

 

使用泛型参数时，方法也需要加<T>标签...

 

 public void bindList2grid<T>(List<T> li, DataTable dt)
        {
            
            foreach (T tc in li)
            {
                  DataRow dr=     bindObj2Row(tc,dt);
                  dt.Rows.Add(dr);
            }
        
        }

 

 

 //反回值为范型
        public static T getValue<T>(object entity, string fieldName)
        {
            Type entityType = entity.GetType();
            PropertyInfo propertyInfo = entityType.GetProperty(fieldName);
            if (propertyInfo == null)
                return default(T);
            if (IsType(propertyInfo.PropertyType, "System.String"))
            {
                return (T)propertyInfo.GetValue(fieldName, null);

            }
            return default(T);
    
            //if (IsType(propertyInfo.PropertyType, "System.String"))
            //{
            //    propertyInfo.SetValue(entity, fieldValue, null);
        }