Winforms -将多个文本文件导入同一个datatable

using System;
using System.Data;
using System.IO;
using System.Windows.Forms;

namespace WinformsApp
{
    public partial class MainForm : Form
    {
        public MainForm()
        {
            InitializeComponent();
        }

        private void ImportFilesButton_Click(object sender, EventArgs e)
        {
            // 创建DataTable对象
            DataTable dataTable = new DataTable();

            // 添加列
            dataTable.Columns.Add("Column1");
            dataTable.Columns.Add("Column2");
            // 添加更多列...

            // 选择多个文本文件
            OpenFileDialog openFileDialog = new OpenFileDialog();
            openFileDialog.Multiselect = true;
            openFileDialog.Filter = "文本文件 (*.txt)|*.txt";
            if (openFileDialog.ShowDialog() == DialogResult.OK)
            {
                foreach (string fileName in openFileDialog.FileNames)
                {
                    // 逐行读取文本文件
                    using (StreamReader reader = new StreamReader(fileName))
                    {
                        string line;
                        while ((line = reader.ReadLine()) != null)
                        {
                            // 拆分行数据并添加到DataTable中
                            string[] columns = line.Split('\t'); // 假设使用制表符分隔列数据
                            dataTable.Rows.Add(columns);
                        }
                    }
                }

                // 关闭StreamReader对象
                openFileDialog.Dispose();

                // 可选：对DataTable进行进一步处理或操作

                // 使用DataTable对象进行后续的数据操作或展示
                dataGridView.DataSource = dataTable;
            }
        }
    }
}