/// <summary>
/// 读取本地文件信息,SilverLight缓存中
/// </summary>
/// <param name="rFileName">存储文件名</param>
/// <returns>返回文件数据</returns>
public static byte[] ReadSlByteFile(string rFileName)
{
System.IO.IsolatedStorage.IsolatedStorageFile isf = null;
System.IO.Stream stream = null;
byte[] buffer = null;
try
{
isf = System.IO.IsolatedStorage.IsolatedStorageFile.GetUserStoreForApplication();
if (!isf.FileExists(rFileName))
{
return(null);
}
stream = new System.IO.IsolatedStorage.IsolatedStorageFileStream(rFileName, System.IO.FileMode.Open, System.IO.FileAccess.Read, System.IO.FileShare.Read, isf);
buffer = new byte[stream.Length];
stream.Read(buffer, 0, (int)stream.Length);
}
finally
{
if (stream != null)
{
stream.Close(); // Close the stream
stream.Dispose();
}
isf.Dispose();
}
return(buffer);
}
public static T LoadFromFile(string fileName)
{
System.IO.IsolatedStorage.IsolatedStorageFile isoFile = null;
System.IO.IsolatedStorage.IsolatedStorageFileStream isoStream = null;
System.IO.StreamReader sr = null;
try
{
isoFile = IsolatedStorageFile.GetUserStoreForApplication();
isoStream = new System.IO.IsolatedStorage.IsolatedStorageFileStream(fileName, FileMode.Open, isoFile);
sr = new System.IO.StreamReader(isoStream);
string xmlString = sr.ReadToEnd();
isoStream.Close();
sr.Close();
return(Deserialize(xmlString));
}
finally
{
if ((isoFile != null))
{
isoFile.Dispose();
}
if ((isoStream != null))
{
isoStream.Dispose();
}
if ((sr != null))
{
sr.Dispose();
}
}
}
public virtual void SaveToFile(string fileName)
{
System.IO.StreamWriter streamWriter = null;
System.IO.IsolatedStorage.IsolatedStorageFile isoFile = null;
System.IO.IsolatedStorage.IsolatedStorageFileStream isoStream = null;
try
{
isoFile = IsolatedStorageFile.GetUserStoreForApplication();
isoStream = new System.IO.IsolatedStorage.IsolatedStorageFileStream(fileName, FileMode.Create, isoFile);
streamWriter = new System.IO.StreamWriter(isoStream);
string xmlString = Serialize();
System.IO.FileInfo xmlFile = new System.IO.FileInfo(fileName);
streamWriter = xmlFile.CreateText();
streamWriter.WriteLine(xmlString);
streamWriter.Close();
isoStream.Close();
}
finally
{
if ((streamWriter != null))
{
streamWriter.Dispose();
}
if ((isoFile != null))
{
isoFile.Dispose();
}
if ((isoStream != null))
{
isoStream.Dispose();
}
}
}
internal static void ClearSlFiles(string rFileName)
{
System.IO.IsolatedStorage.IsolatedStorageFile isf = System.IO.IsolatedStorage.IsolatedStorageFile.GetUserStoreForApplication();
if (rFileName == null || rFileName.TrimEnd() == "")
{
isf.Remove();
}
else
{
if (isf.FileExists(rFileName))
{
isf.DeleteFile(rFileName);
}
}
isf.Dispose();
}
/// <summary>
/// 保存信息至本地文件,SilverLight缓存中
/// </summary>
/// <param name="rFileName">存储文件名</param>
/// <param name="rText">消息文本</param>
public static void WriteSlTextFile(string rFileName, string rText)
{
System.IO.IsolatedStorage.IsolatedStorageFile isf = null;
System.IO.Stream stream = null;
System.IO.TextWriter writer = null;
try
{
isf = System.IO.IsolatedStorage.IsolatedStorageFile.GetUserStoreForApplication();
if (rFileName.IndexOf(':') >= 0)
{
rFileName = rFileName.Substring(rFileName.LastIndexOf(':') + 1);
}
string rPath = System.IO.Path.GetDirectoryName(rFileName);
if (isf.DirectoryExists(rPath) == false)
{
isf.CreateDirectory(rPath);
}
stream = new System.IO.IsolatedStorage.IsolatedStorageFileStream(rFileName, System.IO.FileMode.Create, System.IO.FileAccess.Write, isf);
//stream.Seek(0, System.IO.SeekOrigin.End);
writer = new System.IO.StreamWriter(stream);
writer.Write(rText);
writer.Flush();
}
finally
{
try
{
writer.Close();
stream.Close();
isf.Dispose();
}
catch
{
}
}
}
/// <summary>
/// 读取本地文件信息,SilverLight缓存中
/// </summary>
/// <param name="rFileName">存储文件名</param>
/// <returns>返回消息文本</returns>
public static string ReadSlTextFile(string rFileName)
{
System.IO.IsolatedStorage.IsolatedStorageFile isf = null;
System.IO.Stream stream = null;
System.IO.TextReader reader = null;
try
{
isf = System.IO.IsolatedStorage.IsolatedStorageFile.GetUserStoreForApplication();
stream = new System.IO.IsolatedStorage.IsolatedStorageFileStream(rFileName, System.IO.FileMode.Open, System.IO.FileAccess.Read, isf);
reader = new System.IO.StreamReader(stream);
string sLine = reader.ReadToEnd();
//string sLine=reader.ReadLine();
return(sLine);
}
catch
{
return(string.Empty);
}
finally
{
try
{
if (reader != null)
{
reader.Close(); // Close the reader
}
if (reader != null)
{
stream.Close();
}// Close the stream
isf.Dispose();
}
catch
{
}
}
}
/// <summary>
/// 保存信息至本地文件,SilverLight缓存中
/// </summary>
/// <param name="rFileName"></param>
/// <param name="buffer"></param>
public static void WriteSlByteFile(string rFileName, byte[] buffer)
{
System.IO.IsolatedStorage.IsolatedStorageFile isf = null;
System.IO.Stream stream = null;
try
{
isf = System.IO.IsolatedStorage.IsolatedStorageFile.GetUserStoreForApplication();
if (rFileName.IndexOf(':') >= 0)
{
rFileName = rFileName.Substring(rFileName.LastIndexOf(':') + 1);
}
ClearSlFile(rFileName);
string rPath = System.IO.Path.GetDirectoryName(rFileName);
if (rPath != "")
{
isf.CreateDirectory(rPath);
}
stream = new System.IO.IsolatedStorage.IsolatedStorageFileStream(rFileName, System.IO.FileMode.OpenOrCreate, System.IO.FileAccess.Write, System.IO.FileShare.Write, isf);
stream.Write(buffer, 0, buffer.Length);
stream.Flush();
}
finally
{
try
{
stream.Close(); // Close the stream too
stream.Dispose();
isf.Dispose();
}
catch
{
}
}
}
