取表达式(第一个)参数的类型,然后说
Expression<Func<C, string>> c = x => x.B;
Type paramType = c.Parameters[0].Type; // first parameter of expression
var d = paramType.GetMember((c.Body as MemberExpression).Member.Name)[0];
Lambda表达式未返回预期的MemberInfo
取表达式(第一个)参数的类型,然后说
Expression<Func<C, string>> c = x => x.B;
Type paramType = c.Parameters[0].Type; // first parameter of expression
var d = paramType.GetMember((c.Body as MemberExpression).Member.Name)[0];