Question

   using (StreamReader sr =   new StreamReader (Convert.ToString(adsClient.ReadAny(hActVel, typeof(double)))))
   using (StreamWriter sw = new StreamWriter(NameYourFile.Text + DateTime.Today.ToString("MM_dd_yyyy") + ".csv"))
   {
       if (sr == null)
           return;

       string line;

       while ((line = sr.ReadLine()) != null)
       {
           string[] columns = line.Split(',');
           sw.WriteLine(hActVel);
       }
   }

我还想要一个如何编写文本框数据（即双倍）的答案，它每秒都会改变为（.c s v）文件？在c＃windows form ..

我在我的项目中使用此应用程序来创建伺服电机的前端。

我已经在

中尝试了这个问题

http://area51.stackexchange.com

但是我得到任何答案....请帮助我..

Answer 1

创建名称为文本框的文件：

string path = @"D:\"+NameYourFile.Text+".csv";
File.Create(path).Dispose();

或者你想写文字：

    string text = textbox.text;   // your textbox
 // WriteAllText creates a file, writes the specified string to the file, 
    // and then closes the file.
    System.IO.File.WriteAllText(path, text);

将文本框写入CSV文件：

        //string filePath = @"C:\test.csv";  
        string delimiter = ",";  
        string outputtofile = textbox.text;

        int length = outputfile.length;  
            StringBuilder sb = new StringBuilder();  
            for (int index = 0; index < length; index++)  
                sb.AppendLine(string.Join(delimiter, output[index]));  

            File.WriteAllText(path, sb.ToString());

如果你在文本框Abcdefg中有这样的文字然后它会像文件一样正确： A，b，c，d，e，f，g

Answer 2

假设您有2个TextBoxes ValueTextBox和FileNameTextBox。如果ValueTextBox中的值自动更改，您可以注册TextChaned事件并将文本附加到文件，如下所示：

private void ValueTextBox_TextChanged(object sender, EventArgs e)
{
    StreamWriter writer = File.AppendText(FileNameTextBox.Text);
    writer.WriteLine(ValueTextBox.Text);
    writer.Close();
}

或者你可以使用一个Timer控件，它会每秒触发一次，从ValueTextBox读取值并将其附加到文件中。

private void timer1_Tick(object sender, EventArgs e)
{
    StreamWriter writer = File.AppendText(FileNameTextBox.Text);
writer.WriteLine(String.Format("{0},{1},{2}", DateTime.Now.ToString("hh:mm:ss"), BigMotorTextBox.Text, SmallMotorTextBox.Text)); 
    writer.Close();
}

根据您的上一条评论：

在表单加载中，创建文件并将标题写入其中，如下所示：

private void Form2_Load(object sender, EventArgs e)
{
    StreamWriter writer = new StreamWriter("Path_Of_The_File", false);
    writer.WriteLine(String.Format("{0},{1},{2}", "\"Time\"", "\"Big motor Actual Velocity\"", "\"Small Motor Actual Velocity\""));
    writer.close(); 
}

在Timer tick事件中，按如下所示写值：

private void timer1_Tick(object sender, EventArgs e)
{
    StreamWriter writer = File.AppendText(FileNameTextBox.Text);
    writer.WriteLine(String.Format("{0},{1},{2}", DateTime.Now.ToString("hh:mm:ss"), BigMotorTextBox.Text, SmallMotorTextBox.Text)); 
    writer.Close();
}

Answer 3

最后我的代码变得像这样......

         private void WriteToCSV_Click(object sender, EventArgs e)
              {
       string path = NameYourFile.Text + "_" + DateTime.Now.ToString("MM_dd_yyyy") +                        ".csv";
       if (!System.IO.File.Exists(path))
       {
           // Create file if no Exists
           using (StreamWriter sw = File.CreateText(path))
           {
               sw.WriteLine(string.Format("{0},{1},{2}", "\"Time\"", "\"Big Motor Actual Velocity\"", "\"Small Motor Actual Velocity\""));
           }
       }

       this.timer2.Start();
   }

   private void CreateCSVFile_Click(object sender, EventArgs e)
   {

       this.timer2.Stop();

       MessageBox.Show("File is Created");

   }

   private void timer2_Tick(object sender, EventArgs e)
   {


       string dt = DateTime.Now.ToString("hh.mm.ss.ffffff");
       string var1 = (dt);
       string var2 = adsClient.ReadAny(hActVel, typeof(double)).ToString(); ;
       string var3 = adsClient.ReadAny(hSActVel, typeof(double)).ToString(); ;
       StreamWriter sw = File.AppendText(NameYourFile.Text + "_" + DateTime.Today.ToString("MM_dd_yyyy") + ".csv");


       {

           if (BigMotorActualVelocity.Checked && SmallMotorActualVelocity.Checked)
           {
               sw.WriteLine(string.Format("{0},{1},{2}",var1, var2, var3));

           }

           else if (BigMotorActualVelocity.Checked)
           {
               sw.WriteLine(string.Format("{0},{1}",var1 , var2));
           }

           else if (SmallMotorActualVelocity.Checked)
           {
               sw.WriteLine(string.Format("{0},{1},{2}",var1," ",var3));
           }
           else
           {
               sw.WriteLine(string.Format("{0}",var1));
           }

           sw.Dispose();

       }

如何使用文本框中的输入命名.csv文件作为文件名？

3 个答案: