C# 当我将文本文件导入DataGridView时，它会创建额外的行。

我正在尝试将.txt文件导入DataGrid。问题是，尽管代码基本正常，但在导入.txt文件时，它会创建额外的行，比如

---

您的问题在于代码的第一个foreach循环

        //you are adding rows to the column here, you are not adding headers 
        foreach (
          var columnName in 
          lines.FirstOrDefault().Split(new[] {','}, 
          StringSplitOptions.RemoveEmptyEntries)
        )
        {
            //since we split the line on commas, 
            //we are adding a row to the table for every 
            //CSV value we found in the current line. 
            //this is causing the "garbage" rows you are seeing
            //i do not know where "Time" and "Class" come from here. 
            //they weren't part of that first line in this example. 
            //my guess is you do not need this loop at all.
            //since the headers already neatly show up on the table in your screenshot.
            dataGridView1.Rows.Add(Time, Class);
        }

        //this works just fine.
        foreach (var cellValues in lines)
        {
            var cellArray = cellValues
                .Split(new[] {','}, StringSplitOptions.RemoveEmptyEntries);
            if (cellArray.Length == dataGridView1.Columns.Count)
                dataGridView1.Rows.Add(cellArray);
        }

---

你是说底部那一排空的吗？（我认为这是datagrid的“添加新记录行”。您可以通过设置

datagrid.allowUserToAddress=false

来关闭它）哦，不，前两个。我想如果你查看我链接的imgur文件，你就能看到它们。啊！我看到了，等等，我试过了。前两行仍然损坏。但这次，它跳过了我的第一行，共3行。当我将skip值设置为0时，显示了我所有的3个条目，但前两行仍然保留。我找出了原因并更新了答案。有趣的是，前两行在技术上并没有“损坏”。编译第一个循环的唯一原因是

Time

和

Class

解析为现有的类定义或实例。datagrid单元格中的值是这些定义的命名空间和类名。

        //you are adding rows to the column here, you are not adding headers 
        foreach (
          var columnName in 
          lines.FirstOrDefault().Split(new[] {','}, 
          StringSplitOptions.RemoveEmptyEntries)
        )
        {
            //since we split the line on commas, 
            //we are adding a row to the table for every 
            //CSV value we found in the current line. 
            //this is causing the "garbage" rows you are seeing
            //i do not know where "Time" and "Class" come from here. 
            //they weren't part of that first line in this example. 
            //my guess is you do not need this loop at all.
            //since the headers already neatly show up on the table in your screenshot.
            dataGridView1.Rows.Add(Time, Class);
        }

        //this works just fine.
        foreach (var cellValues in lines)
        {
            var cellArray = cellValues
                .Split(new[] {','}, StringSplitOptions.RemoveEmptyEntries);
            if (cellArray.Length == dataGridView1.Columns.Count)
                dataGridView1.Rows.Add(cellArray);
        }