c# - 将xml转换为数据集

Question

当我尝试转换数据集中的 xml 隔离存储文件时，出现“无法访问，因为正在被另一个用户使用”之类的异常

我的代码：

IsolatedStorageFile isfInsuranceFirm = null;

isfInsuranceFirm = IsolatedStorageFile.GetStore(IsolatedStorageScope.User | IsolatedStorageScope.Assembly | IsolatedStorageScope.Domain, null, null);
Stream stream1 = new IsolatedStorageFileStream("PageAccess.xml",FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None, isfInsuranceFirm);

stream1.Position = 0;

string path1 = stream1.GetType().GetField("m_FullPath", BindingFlags.Instance | BindingFlags.NonPublic).GetValue(stream1).ToString();
string path2 = stream2.GetType().GetField("m_FullPath", BindingFlags.Instance | BindingFlags.NonPublic).GetValue(stream2).ToString();

XmlDataDocument doc = new XmlDataDocument();
//doc.LoadXml(path1.Substring(path1.IndexOf('/') + 1));
doc.Load(path1);

Answer 1

您似乎没有正确处理IDisposable资源。您应该始终将它们包装在 using 语句中，以确保您没有泄漏句柄：

using (IsolatedStorageFile isfInsuranceFirm = IsolatedStorageFile.GetStore(IsolatedStorageScope.User | IsolatedStorageScope.Assembly | IsolatedStorageScope.Domain, null, null))
using (Stream stream1 = new IsolatedStorageFileStream("PageAccess.xml", FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None, isfInsuranceFirm))
{

    stream1.Position = 0;

    string path1 = stream1.GetType().GetField("m_FullPath", BindingFlags.Instance | BindingFlags.NonPublic).GetValue(stream1).ToString();
    string path2 = stream2.GetType().GetField("m_FullPath", BindingFlags.Instance | BindingFlags.NonPublic).GetValue(stream2).ToString();

    XmlDataDocument doc = new XmlDataDocument();
    //doc.LoadXml(path1.Substring(path1.IndexOf('/') + 1));
    doc.Load(path1);
}