Question

如何在WP7独立存储中存储类的对象？我想要检索它并在需要时编辑它。

Answer 1

您需要序列化数据以保存它，然后反序列化它以加载它。您可以找到一个完整的工作示例in this article。

例如，按如下方式标记类和属性：

[DataContract] 
public class Employee  
{  
     [DataMember] 
     public int EmployeeNumber { get; set; }  
     [DataMember] 
     public string Name { get; set; }  
     [DataMember] 
     public string Department { get; set; }  
}

构建一个序列化器：

DataContractSerializer mySerializer = new DataContractSerializer(typeof(Employee));

然后通过ReadObject / WriteObject加载/保存。

Answer 2

你可以使用xml序列化

    public static void Serialize<T>(T obj, string fileName)
    {   
     try
      {
        var store = IsolatedStorageFile.GetUserStoreForApplication();
        IsolatedStorageFileStream stream = store.OpenFile(fileName, FileMode.Create);

        XmlSerializer serializer = new XmlSerializer(typeof(T));

        using (XmlWriter xmlWriter = XmlWriter.Create(stream, writerSettings))
        {
            serializer.Serialize(xmlWriter, obj);
        }

    stream.Close();
   }
   catch (Exception ex)
   {
      throw ex;
   }
  }


    public static T DeSerialize<T>(string fileName)
    {
      try
      {
         var store = IsolatedStorageFile.GetUserStoreForApplication();
         IsolatedStorageFileStream stream = store.OpenFile(fileName, FileMode.Open);

         XmlSerializer serializer = new XmlSerializer(typeof(T));
         return (T)serializer.Deserialize(stream);
      }
      catch (Exception ex)
      {
        throw ex;
      }
    }

在WP7中将类对象存储在Isolated Storage中

2 个答案: