winrt-xaml - PasswordCredentials.Password 在 PasswordVault 中始终为空

Question

我正在尝试使用以下代码在 Windows Phone 8.1 PasswordVault 中存储用户名密码，它存储数据但是当我检索密码字段时始终为空。

  PasswordVault passwordVault = new PasswordVault();
  passwordVault.Add(new PasswordCredential("MyResouceKey", "username", "Password"));

 // Retrieval
 var credential = passwordVault.FindAllByResource("MyResourceKey");
  return credential.Password; /// it is always empty.

密码永远为空

Answer 1

在获取 Password 属性之前，您需要调用 credential.RetrievePassword()。

http://msdn.microsoft.com/en-us/library/windows/apps/windows.security.credentials.passwordcredential.retrievepassword