<div class="markdown-block">public class AdminLoginByAccountRequestData : LoginByAccountRequestData</div><div class="markdown-block">{</div><div class="markdown-block">[StringDataMember(GNParameterCode.Username, minLength = 6, maxLength = 32, mustNonNull = true)]</div><div class="markdown-block">public new string username;</div><div class="markdown-block">}</div><div class="markdown-block">public class LoginByAccountRequestData</div><div class="markdown-block">{</div><div class="markdown-block">[StringDataMember(GNParameterCode.Username, minLength = 6, maxLength = 32, mustNonNull = true)]</div><div class="markdown-block">public string username;</div><div class="markdown-block">[StringDataMember(GNParameterCode.Password, minLength = 6, maxLength = 64, mustNonNull = true)]</div><div class="markdown-block">public string password;</div><div class="markdown-block">[StringDataMember (GNParameterCode.InfoRequestParam, mustNonNull = true)]</div><div class="markdown-block">public InfoRequestParam infoRequestParam;</div><div class="markdown-block">}</div><div class="markdown-block">làm thế nào để lấy được 3 field info có attribute StringDataMember, trong đó username là field của AdminLoginByAccountRequestData, còn password và infoRequestParam là field của LoginByAccountRequestData</div>