Question

我是C＃的新手，目前正在开发一个Windows移动应用程序，我必须在按钮的单击事件上创建一个文本文件，并且必须编写页面中存在的文本字段的值。任何人都可以帮助我这个，我正在使用visual 2008。

private void btnSubmit_Click(object sender, EventArgs e)
{
    string path = "C:\\Users\\Mytext.txt";

    if (!File.Exists(path))
    {
        File.Create(path);
        TextWriter tw = new StreamWriter(path);
        tw.WriteLine("The very first line!");
        tw.Close();
    }
    else if (File.Exists(path))
    {
        TextWriter tw = new StreamWriter(path);
        tw.WriteLine("The next line!");
        tw.Close();
    }
}

Answer 1

使用

private void btnSubmit_Click(object sender, EventArgs e)
{
  string path = "\\My Documents\\Mytext.txt";

  if (!File.Exists(path))
  {
    File.Create(path);
    TextWriter tw = new StreamWriter(path);
    tw.WriteLine("The very first line!");
    tw.Close();
  }
  else if (File.Exists(path))
  {
    TextWriter tw = new StreamWriter(path);
    tw.WriteLine("The next line!");
    tw.Close();
  }
}

Windows Mobile 6.x设备上没有驱动器号
没有\ users目录

忘记针对Windows Phone或Windows Embedded 8掌上电脑的答案。

Answer 2

您应该在打开streamwriter之前先关闭文件创建

private void btnSubmit_Click(object sender, EventArgs e){
string path = "C:\\Users\\Mytext.txt";

if (!File.Exists(path))
{
    File.Create(path).close();
    TextWriter tw = new StreamWriter(path);
    tw.WriteLine("The very first line!");
    tw.Close();
}
else if (File.Exists(path))
{
    TextWriter tw = new StreamWriter(path);
    tw.WriteLine("The next line!");
    tw.Close();
}}

在C＃for Windows Mobile App中创建文本文件

2 个答案: