Question

我怎样才能在 WP7 孤立存储器中存储一个类的对象? 我想在需要时检索并编辑它。

Answer 1

您需要将数据序列化以保存数据, 然后将数据解密以装入它。您可以在文章中找到完整的工作示例 < a href=" http://www.codeproject.com/ articless/ 156254/Semple- Data- serication- on- WP7 > 。

例如,将类别和属性标记如下:

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

构造序列器 :

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

然后通过 ReadObject / / writeObject 装入/保存。

Answer 2

U 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;
      }
    }

友情链接