如何从文件中读取数据? [英] How to read data from file?

问题描述

亲爱的所有人，

我有问题
我的代码在这里
该代码将数据写入文件

Dear all,

I have a problem
My code is here
this code is write data to file

string tLine = "";
            StreamWriter objWriter = new StreamWriter("text.txt",true);
            string[] arrTest = new string[9];
            arrTest[0] = txtID.Text;
            arrTest[1] = txtName.Text;
            arrTest[2] = cmbGender.Text;
            arrTest[3] = txtPhone.Text;
            arrTest[4] = txtPassport.Text;
            arrTest[5] = dateTPStartdate.Text;
            arrTest[6] = dateTPEndDate.Text;
            arrTest[7] = txtAddress.Text;
            arrTest[8] = txtDescription.Text;
            for (j = 0; j < 9; j++)
            {
                objWriter.Write(arrTest[j]+" ");
            }
            objWriter.WriteLine();
            objWriter.Close();

然后，当我阅读该文件以显示该文件无法使用的错误时，该文件已被其他进程使用.
此处读取的代码是

Then when I read it to show I got the error that this file cannot use because it uses by other process.
Code read is here

StreamReader objReader = new StreamReader("text.txt");
            string textLine = "";
           
            int linecount = 1;     
            do{
              if(linecount % 9 != 0)
              {
                   textLine+= objReader.ReadLine();
                   linecount++;
              }
              else
              {
                lis.SubItems.Add(textLine);
                
                linecount = 1;
                textLine = "";
              }
             
             } while (objReader.Peek() != -1);
            listView1.Items.Add(lis);

我从文件读取以显示在listView中.

请帮我.非常感谢

I read from file to show in listView.

Please help me. Thank so much

推荐答案

在完成处理后处置objWriter-否则文件将保持锁定状态，直到垃圾回收器将其清除为止.

Dispose your objWriter when you have finished with it - otherwise the file will remain locked until the Garbage Collector gets rid of it.

objWriter.WriteLine();
objWriter.Close();
objWriter.Dispose();
objWriter = null;       // Not necessary, but prevents you trying to used a disposed item later.

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