C# 我需要将什么属性保存到RoamingSettings?
我需要将什么属性保存到RoamingSettings 与序列化数据时一样,它需要C# 我需要将什么属性保存到RoamingSettings?,c#,windows-8,roaming,C#,Windows 8,Roaming,我需要将什么属性保存到RoamingSettings 与序列化数据时一样,它需要DataContract和DataMember属性。我可以将类序列化为XML,但我需要使用RoamingSettings保存它: roamingSettings.Values["MyType"] = _mytype; 调试时,我收到以下错误消息: 不支持此类型的数据。 WinRT信息:尝试序列化要写入应用程序数据存储的值时出错 我想我需要一个属性,但哪一个呢?处理这种情况的最佳方法是将对象序列化为字符串并存储它 将
DataContract
和DataMember
属性。我可以将类序列化为XML,但我需要使用RoamingSettings
保存它:
roamingSettings.Values["MyType"] = _mytype;
调试时,我收到以下错误消息:
不支持此类型的数据。WinRT信息:尝试序列化要写入应用程序数据存储的值时出错
我想我需要一个属性,但哪一个呢?处理这种情况的最佳方法是将对象序列化为字符串并存储它
将存储的字符串值反序列化为目标对象。处理这种情况的最佳方法是将对象序列化为字符串并存储它
将存储的字符串值反序列化为目标对象。使用正确的StorageFolder ApplicationData.Current.RoamingFolder
public static class RoamingStorage<T> {
public static async void SaveData(string filename, T data)
{
try
{
StorageFile file = await ApplicationData.Current.RoamingFolder.CreateFileAsync(filename, CreationCollisionOption.ReplaceExisting);
using (IRandomAccessStream raStream = await file.OpenAsync(FileAccessMode.ReadWrite))
{
using (IOutputStream outStream = raStream.GetOutputStreamAt(0))
{
DataContractSerializer serializer = new DataContractSerializer(typeof(List<Item>));
serializer.WriteObject(outStream.AsStreamForWrite(), data);
await outStream.FlushAsync();
}
}
}
catch (Exception exc)
{
throw exc;
}
}
public static async System.Threading.Tasks.Task<T> LoadData(string filename)
{
T data = default(T);
try
{
StorageFile file = await ApplicationData.Current.RoamingFolder.GetFileAsync(filename);
using (IInputStream inStream = await file.OpenSequentialReadAsync())
{
DataContractSerializer serializer = new DataContractSerializer(typeof(T));
data = (T)serializer.ReadObject(inStream.AsStreamForRead());
}
}
catch (FileNotFoundException ex)
{
throw ex;
}
catch (Exception ex)
{
throw ex;
}
return data;
}
}
公共静态类漫游存储{
公共静态异步void SaveData(字符串文件名,T数据)
{
尝试
{
StorageFile file=wait ApplicationData.Current.RoamingFolder.CreateFileAsync(文件名,CreationCollisionOption.ReplaceExisting);
使用(irandomaccesstream raStream=await file.OpenAsync(FileAccessMode.ReadWrite))
{
使用(IOOutputStream outStream=raStream.GetOutputStreamAt(0))
{
DataContractSerializer serializer=新的DataContractSerializer(typeof(List));
serializer.WriteObject(outStream.AsStreamForWrite(),data);
等待流出。FlushAsync();
}
}
}
捕获(异常exc)
{
抛出exc;
}
}
公共静态异步System.Threading.Tasks.Task LoadData(字符串文件名)
{
T数据=默认值(T);
尝试
{
StorageFile file=Wait ApplicationData.Current.RoamingFolder.GetFileAsync(文件名);
使用(IInputStream inStream=wait file.OpenSequentialReadAsync())
{
DataContractSerializer serializer=新的DataContractSerializer(typeof(T));
data=(T)serializer.ReadObject(inStream.AsStreamForRead());
}
}
捕获(FileNotFoundException ex)
{
掷骰子;
}
捕获(例外情况除外)
{
掷骰子;
}
返回数据;
}
}
示例调用
RoamingStorage<List<Item>>.SaveData(FILENAME,Items);
List<Item> data = await RoamingStorage<List<Item>>.LoadData(FILENAME);
RoamingStorage.SaveData(文件名、项目);
列表数据=等待RoamingStorage.LoadData(文件名);
使用正确的StorageFolder应用程序Data.Current.RoamingFolder
public static class RoamingStorage<T> {
public static async void SaveData(string filename, T data)
{
try
{
StorageFile file = await ApplicationData.Current.RoamingFolder.CreateFileAsync(filename, CreationCollisionOption.ReplaceExisting);
using (IRandomAccessStream raStream = await file.OpenAsync(FileAccessMode.ReadWrite))
{
using (IOutputStream outStream = raStream.GetOutputStreamAt(0))
{
DataContractSerializer serializer = new DataContractSerializer(typeof(List<Item>));
serializer.WriteObject(outStream.AsStreamForWrite(), data);
await outStream.FlushAsync();
}
}
}
catch (Exception exc)
{
throw exc;
}
}
public static async System.Threading.Tasks.Task<T> LoadData(string filename)
{
T data = default(T);
try
{
StorageFile file = await ApplicationData.Current.RoamingFolder.GetFileAsync(filename);
using (IInputStream inStream = await file.OpenSequentialReadAsync())
{
DataContractSerializer serializer = new DataContractSerializer(typeof(T));
data = (T)serializer.ReadObject(inStream.AsStreamForRead());
}
}
catch (FileNotFoundException ex)
{
throw ex;
}
catch (Exception ex)
{
throw ex;
}
return data;
}
}
公共静态类漫游存储{
公共静态异步void SaveData(字符串文件名,T数据)
{
尝试
{
StorageFile file=wait ApplicationData.Current.RoamingFolder.CreateFileAsync(文件名,CreationCollisionOption.ReplaceExisting);
使用(irandomaccesstream raStream=await file.OpenAsync(FileAccessMode.ReadWrite))
{
使用(IOOutputStream outStream=raStream.GetOutputStreamAt(0))
{
DataContractSerializer serializer=新的DataContractSerializer(typeof(List));
serializer.WriteObject(outStream.AsStreamForWrite(),data);
等待流出。FlushAsync();
}
}
}
捕获(异常exc)
{
抛出exc;
}
}
公共静态异步System.Threading.Tasks.Task LoadData(字符串文件名)
{
T数据=默认值(T);
尝试
{
StorageFile file=Wait ApplicationData.Current.RoamingFolder.GetFileAsync(文件名);
使用(IInputStream inStream=wait file.OpenSequentialReadAsync())
{
DataContractSerializer serializer=新的DataContractSerializer(typeof(T));
data=(T)serializer.ReadObject(inStream.AsStreamForRead());
}
}
捕获(FileNotFoundException ex)
{
掷骰子;
}
捕获(例外情况除外)
{
掷骰子;
}
返回数据;
}
}
示例调用
RoamingStorage<List<Item>>.SaveData(FILENAME,Items);
List<Item> data = await RoamingStorage<List<Item>>.LoadData(FILENAME);
RoamingStorage.SaveData(文件名、项目);
列表数据=等待RoamingStorage.LoadData(文件名);
是的,谢谢!但是,我找不到任何异步方式来实现这一点:/yeah,谢谢!但是,我找不到任何异步方法可以做到这一点:/