在 Windows Phone 上的 C# 中尝试访问该方法失败: System.IO.FileStream..ctor(System.String, System.IO.FileMode) [英] In C# on windows phone Attempt to access the method failed: System.IO.FileStream..ctor(System.String, System.IO.FileMode)

问题描述

FileStream FS = new FileStream("MyFolder\\MyFile.txt", FileMode.Open);
IsolatedStorageFile myIsolatedStorage = IsolatedStorageFile.GetUserStoreForApplication();
StreamWriter writeFile = new StreamWriter(new IsolatedStorageFileStream("MyFolder\\MyFile.txt", FileMode.Append, myIsolatedStorage));

    using (writeFile)
    {
        FS.Seek(0, SeekOrigin.End);
        writeFile.WriteLine(txtWrite.Text);
        writeFile.Close();
        System.Diagnostics.Debug.WriteLine("Now I am here");
    }

当我尝试运行此代码(尝试将数据附加到现有文本文件中)时，出现异常

When I am trying to run this code(trying to append data into an existing text file), getting exception

"尝试访问该方法失败:System.IO.FileStream..ctor(System.String, System.IO.FileMode)"

"Attempt to access the method failed: System.IO.FileStream..ctor(System.String, System.IO.FileMode)"

我在这里犯了什么错误?

What is the mistake I have done here?

推荐答案

我终于在挣扎了 4 小时后成功了:

Finally I made it working after struggling for 4 hrs:

 IsolatedStorageFile myIsolatedStorage = IsolatedStorageFile.GetUserStoreForApplication();                
            StreamWriter writeFile = new StreamWriter(new IsolatedStorageFileStream("MyFolder\\MyFile.txt", FileMode.Append, myIsolatedStorage));

            writeFile.Flush();

            System.Diagnostics.Debug.WriteLine(txtWrite.Text);
            writeFile.WriteLine(txtWrite.Text);                
            writeFile.Close();
            System.Diagnostics.Debug.WriteLine("Now I am here");

我删除了文件流方法并做了一些修改.它开始工作.感谢所有试图帮助我提出建议的人

I removed the file stream method and did some modifications. Its started to work. Thanks to everybody who tried to help me with your suggestions

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