C#Excel粘贴到DataGridView

源自http://www.51aspx.com/DownloadAuth/EBGHStickDateGridView/44369?needType=0

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;
// 下载于www.51aspx.com

namespace excel
{
    public partial class Form1 : Form
    {
        
        public Form1()
        {
            InitializeComponent();
        }
        private void Form1_Load(object sender, EventArgs e)
        {
            for (int i = 0; i < 9; i++)
            {
                dgvExcel.Rows.Add();
            }
        }

        private void dgvExcel_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (e.KeyChar == 22)
            {
                PasteData();
            }
        }
        private void PasteData()
        {
            try
            {
                string clipboardText = Clipboard.GetText(); //获取剪贴板中的内容
                if (string.IsNullOrEmpty(clipboardText))
                {
                    return;
                }
                int colnum = 0;
                int rownum = 0;
                for (int i = 0; i < clipboardText.Length; i++)
                {
                    if (clipboardText.Substring(i, 1) == "\t")
                    {
                        colnum++;
                    }
                    if (clipboardText.Substring(i, 1) == "\n")
                    {
                        rownum++;
                    }
                }
                //粘贴板上的数据来源于EXCEL时，每行末尾都有\n，来源于DataGridView是，最后一行末尾没有\n
                if (clipboardText.Substring(clipboardText.Length - 1, 1) == "\n")
                {
                    rownum--;
                }
                colnum = colnum / (rownum + 1);
                object[,] data; //定义object类型的二维数组
                data = new object[rownum + 1, colnum + 1];  //根据剪贴板的行列数实例化数组
                string rowStr = "";
                //对数组各元素赋值
                for (int i = 0; i <= rownum; i++)
                {
                    for (int j = 0; j <= colnum; j++)
                    {
                        //一行中的其它列
                        if (j != colnum)
                        {
                            rowStr = clipboardText.Substring(0, clipboardText.IndexOf("\t"));
                            clipboardText = clipboardText.Substring(clipboardText.IndexOf("\t") + 1);
                        }
                        //一行中的最后一列
                        if (j == colnum && clipboardText.IndexOf("\r") != -1)
                        {
                            rowStr = clipboardText.Substring(0, clipboardText.IndexOf("\r"));
                        }
                        //最后一行的最后一列
                        if (j == colnum && clipboardText.IndexOf("\r") == -1)
                        {
                            rowStr = clipboardText.Substring(0);
                        }
                        data[i, j] = rowStr;
                    }
                    //截取下一行及以后的数据
                    clipboardText = clipboardText.Substring(clipboardText.IndexOf("\n") + 1);
                }
                clipboardText = Clipboard.GetText();
                int cellsCount = dgvExcel.SelectedCells.Count;
                int r1 = (dgvExcel.SelectedCells[cellsCount - 1].RowIndex);
                int r2 = (dgvExcel.SelectedCells[0].RowIndex);
                int c1 = (dgvExcel.SelectedCells[cellsCount - 1].ColumnIndex);
                int c2 = (dgvExcel.SelectedCells[0].ColumnIndex);

                int rowIndex = Math.Abs(r2 - r1) + 1;
                int colIndex = Math.Abs(c2 - c1) + 1;

                if (colIndex != colnum + 1 || rowIndex != rownum + 1)
                {
                    MessageBox.Show("粘贴区域大小不一致");
                    return;
                }
                else
                {
                    for (int i = 0; i <= rownum; i++)
                    {
                        for (int j = 0; j <= colnum; j++)
                        {
                            dgvExcel.Rows[i + r1].Cells[j + c1].Value = data[i, j];
                        }
                    }
                }
            }
            catch
            {
                MessageBox.Show("粘贴区域大小不一致");
                return;
            }
        }
    }
}