在C＃窗体中从DataGridView写入文本文件 [英] Writing to a text file from DataGridView in C# windows form

问题描述

我想将数据从我的 DataGridView 写入一个文本文件。

I want to write the data from my DataGridView to a textfile.

以下代码写入数据，但格式不正确。

The following code writes the data but it is not formatted correctly.

StreamWriter sW = new StreamWriter(dirLocationString);

string lines = "";

for (int row = 0; row< numRows1; row++){
     for (int col = 0; col < 4; col++)
         {

          lines = lines + " " + dataGridView1.Rows[row].Cells[col].Value.ToString();

         }

      sW.WriteLine(lines);
}

   sW.Close();   

我希望输出格式如下：

AAAA, BBBB, CCCC, DDDD 

它显示以下内容：

AAAA BBBB CCCC DDDD
AAAA BBBB CCCC DDDD AAAA BBBB CCCC DDDD
AAAA BBBB CCCC DDDD AAAA BBBB CCCC DDDD AAAA BBBB CCCC DDDD
and so on..

推荐答案

Init lines in first loop：

Init lines in first loop :

StreamWriter sW = new StreamWriter(dirLocationString);

for (int row = 0; row< numRows1; row++){
    string lines = "";
    for (int col = 0; col < 4; col++)
    {
        lines += (string.IsNullOrEmpty(lines) ? " " : ", ") + dataGridView1.Rows[row].Cells[col].Value.ToString();
    }

    sW.WriteLine(lines);
}

sW.Close(); 

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