如何将文本转换为DataGridView中的列？

Question

我刚刚开始学习C＃，我有这个问题...如何将文本转换为Excel中的DataGridView中的列？

来源格式：

NO  BRAND   NAME,ADRESS,PHONE

1 Brand1 Name1，address1，phone1

2 Brand2 Name2，address1，phone2

3 Brand1 Name3，address3，phone3

4 Brand3 Name4，address4，phone4

5 Brand1 Name5，address5，phone5

6 Brand1 Name6，address6，phone6

7 Brand4 Name7，address7，phone7

8 Brand2 Name8，address8，phone8

9 Brand4 Name9，address9，phone9

10 Brand2 Name10，address10，phone10

Excel来源：https://www.easypaste.org/file/dmqoMGDW/export-sources.xls?lang=en

我希望导入后的表格看起来像这样：enter image description here

谢谢我帮忙...

这是我的代码：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Data.OleDb;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace ExceltoDGV
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            try
            {
                OpenFileDialog openfile1 = new OpenFileDialog();
                if (openfile1.ShowDialog() == System.Windows.Forms.DialogResult.OK)
                {
                    this.textBox1.Text = openfile1.FileName;

                    string pathconn = "Provider = Microsoft.jet.OLEDB.4.0; Data source=" + textBox1.Text + ";Extended Properties=\"Excel 8.0;HDR= yes;\";";
                    OleDbConnection conn = new OleDbConnection(pathconn);
                    OleDbDataAdapter MyDataAdapter = new OleDbDataAdapter("Select * from [Inwestycje$]", conn);
                    DataTable dt = new DataTable();
                    MyDataAdapter.Fill(dt);
                    dataGridView1.DataSource = dt;
                }
            }
            catch
            {

            }
        }
    }
}

Answer 1

我使用这种方法将我的csv转换为数据集。试试这个：

private DataTable GetDataFromSource(string connectionstring)
    {
         DataTable DtCsv = new DataTable();  
         string Fulltext;

            using (StreamReader sr = new StreamReader(connectionstring))
            {
                while (!sr.EndOfStream)
                {
                    Fulltext = sr.ReadToEnd().ToString(); //read full file text  
                    string[] rows = Fulltext.Split('\n'); //split full file text into rows  
                    for (int i = 0; i < rows.Count() - 1; i++)
                    {
                        string[] rowValues = rows[i].Split(','); //split each row with comma to get individual values  
                        {
                            if (i == 0)
                            {
                                for (int j = 0; j < rowValues.Count(); j++)
                                {
                                    DtCsv.Columns.Add(rowValues[j]); //add headers  
                                }
                            }
                            else
                            {
                                DataRow dr = DtCsv.NewRow();
                                for (int k = 0; k < rowValues.Count(); k++)
                                {
                                    dr[k] = rowValues[k].ToString();
                                }
                                DtCsv.Rows.Add(dr); //add other rows  
                            }
                        }
                    }
                }
            }

        return DtCsv;
    }