写在表单结束事件上的文本文件

时间:2012-05-16 16:08:46

标签: c# io text-files

我正在尝试将一些字符串写入formclosing事件上的文本文件。问题是编写器没有写任何东西,只是写了一个空白的石板。我有2个不同的文本文件,第一个将记录所有图形数据,第二个文本文件将记录与我的应用程序相关的几个首选项。我的代码如下所示:关闭事件和单独的主力方法:

  private void Form1_FormClosing(object sender, FormClosingEventArgs e)
    {


        if (e.CloseReason.Equals(CloseReason.WindowsShutDown) || (e.CloseReason.Equals(CloseReason.UserClosing))) 
        {
            if (MessageBox.Show("You are closing this application.\n\nAre you sure you wish to exit ?", "Warning: Not Submitted", MessageBoxButtons.YesNoCancel, MessageBoxIcon.Stop) == DialogResult.Yes)
            {

                writeContents("Interrupted");

                return;
            }

            else
                e.Cancel = true; 
        } 



    }

    private void writeContents(string status)
    {

        //---writes the graph data-----
        TextWriter twBackupData = new StreamWriter("C://springTestBackupData.txt");

        twBackupData.WriteLine("--Cycle#-- --TorqueLower-- --TorqueUpper--");

        //writes the table of values in there, assume x and y are the same size arrays
        for(int i = 0; i < x.Count; i++)
        {               
            twBackupData.WriteLine(x[i] + "   " + y_lower[i] + "   " + y_upper[i]);
        }


        //---writes some of the preferences------
        TextWriter twBackupDataInfo = new StreamWriter("C://springTestBackupInfo.txt");

        twBackupDataInfo.WriteLine(status);
        twBackupDataInfo.WriteLine(cycleCount.ToString());
        twBackupDataInfo.WriteLine(section.ToString());
        twBackupDataInfo.WriteLine(revsPerCycle.ToString());
        twBackupDataInfo.WriteLine(preturns.ToString());
        twBackupDataInfo.WriteLine(direction.ToString());

    }

如果您可以提供建议或帮助我找出为什么写空白,我会非常感激。谢谢!

4 个答案:

答案 0 :(得分:2)

您需要使用StreamWriter声明关闭using

答案 1 :(得分:1)

使用起来要容易得多:

var linesToWrite = new list<string>();

linesToWrite.Add(status);
linesToWrite.Add(cycleCount.ToString());
...

File.WriteAllLines("C://springTestBackupData.txt", linesToWrite);

答案 2 :(得分:1)

你需要关闭/处理编写器才能写入,否则它永远不会刷新它的流(即将数据写入文件)

使用'using'语句会在超出范围时自动处理对象:

using(TextWriter twBackupData = new StreamWriter("C://springTestBackupData.txt"))
{
     // Do your stuff here - write to the tw ---


    twBackupData.WriteLine("--Cycle#-- --TorqueLower-- --TorqueUpper--");   

    //writes the table of values in there, assume x and y are the same size arrays   
    for(int i = 0; i < x.Count; i++)   
    {                  
        twBackupData.WriteLine(x[i] + "   " + y_lower[i] + "   " + y_upper[i]);   
    }   
}

确保您的文件被写入

更多信息:

http://msdn.microsoft.com/en-us/library/yh598w02.aspx

答案 3 :(得分:0)

您需要在StreamWriters上执行.Close();