private static MemberInfo GetMember <T>(Expression <Func <T, object> > fnMember)
{
Guard.NotNull(fnMember, "fnMember");
var member = Expressor.Member(fnMember);
Guard.NotNull(member, "member");
var f = member as FieldInfo;
if (f != null)
{
if (f.IsInitOnly)
{
throw new ArgumentException(string.Format("Field '{0}.{1}' must be can read and write!", typeof(T).Name, f.Name));
}
return(f);
}
var p = member as PropertyInfo;
if (p != null)
{
if (!p.CanRead || !p.CanWrite)
{
throw new ArgumentException(string.Format("Property '{0}.{1}' must be can read and write!", typeof(T).Name, p.Name));
}
return(p);
}
throw new ArgumentException(string.Format("'{0}.{1}' must be field or property", typeof(T).Name, member.Name));
}
/// <summary>
/// 通过Lambda 得到Lambda函数内部的成员对象
/// </summary>
/// <param name="func"></param>
/// <returns></returns>
public static MemberInfo Member(Expression <Func <object> > func)
{
return(Expressor.Member(func));
}