实例介绍
【实例简介】对比的是指定格式的excel，仅供参考学习
【实例截图】
【核心代码】
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.OleDb;
//using Microsoft.Office.Interop.Excel;
namespace Excel比对
{
public partial class Form1 : Form
{
private static DataTable dt_1 = new DataTable(); //表1数据
private static DataTable dt_2 = new DataTable(); //表2数据
private static DataTable dt_o1 ; //只有表一有
private static DataTable dt_o2 ; //只有表二有
private static DataTable dt_oy ; //表一表二共有
private static DataSet _DataSet;
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
OpenFileDialog saveFileDialog1 = new OpenFileDialog();
//ofd.ShowDialog();
saveFileDialog1.Filter = "导出Excel (*.xls)|*.xls|Word (*.doc)|*.doc";
saveFileDialog1.FilterIndex = 1;
saveFileDialog1.RestoreDirectory = true;//保存对话框是否记忆上次打开的目录
//saveFileDialog1.CreatePrompt = true;
saveFileDialog1.Title = "导出文件保存路径";
saveFileDialog1.ShowDialog();
if (saveFileDialog1.FileName == "")
return;
string fileExt = System.IO.Path.GetExtension(saveFileDialog1.FileName);
if (fileExt != ".xls")//必须是EXCEL文件
return;
string filepath = saveFileDialog1.FileName;//文件路径
//DataTable dt = new DataTable();
dt_1 = CallExcel(filepath);//返回EXCEL文件的数据
dv_1.DataSource = dt_1.DefaultView;
lbl_1.Text = "表一共有记录：" dt_1.Rows .Count "条";
}
protected DataTable CallExcel(string filepath)
{
OleDbConnection con = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" filepath ";Extended Properties='Excel 8.0;'");
con.Open();//这个部分报错，提示外部表不是预期的格式。
string sql = "select * from [Sheet1$]";//选择第一个数据SHEET
//OleDbCommand command = new OleDbCommand(sql, con);
//OleDbDataReader reader = command.ExecuteReader();
//if (reader.Read())
//{
// reader[0].ToString();//直接读出数据
//}
OleDbDataAdapter adapter = new OleDbDataAdapter(sql, con);
DataTable dt = new DataTable();
adapter.Fill(dt);
//reader.Close();
//command.Dispose();
con.Close();
con.Dispose();
return dt;
}
private void button2_Click(object sender, EventArgs e)
{
OpenFileDialog saveFileDialog1 = new OpenFileDialog();
//ofd.ShowDialog();
saveFileDialog1.Filter = "导出Excel (*.xls)|*.xls|Word (*.doc)|*.doc";
saveFileDialog1.FilterIndex = 1;
saveFileDialog1.RestoreDirectory = true;//保存对话框是否记忆上次打开的目录
//saveFileDialog1.CreatePrompt = true;
saveFileDialog1.Title = "导出文件保存路径";
saveFileDialog1.ShowDialog();
if (saveFileDialog1.FileName == "")
return;
string fileExt = System.IO.Path.GetExtension(saveFileDialog1.FileName);
if (fileExt != ".xls")//必须是EXCEL文件
return;
string filepath = saveFileDialog1.FileName;//文件路径
//DataTable dt = new DataTable();
dt_2 = CallExcel(filepath);//返回EXCEL文件的数据
dv_2.DataSource = dt_1.DefaultView;
lbl_2.Text = "表二共有记录：" dt_2.Rows.Count "条";
}
private void button3_Click(object sender, EventArgs e)
{
if (dt_1.Rows.Count == 0)
{
MessageBox.Show("请选择Excel表1文件");
return;
}
if (dt_2.Rows.Count == 0)
{
MessageBox.Show("请选择Excel表2文件");
return;
}
if (dt_oy != null)
{
dt_oy.Rows.Clear();
dt_o1.Rows.Clear();
dt_o2.Rows.Clear();
}
dt_oy = dt_1.Clone();
dt_o1 = dt_1.Clone();
dt_o2 = dt_2.Clone();
for (int i = 0; i < dt_1.Rows.Count; i )
{
string ylxm = dt_1.Rows[i]["育妇姓名"].ToString().Trim();
string poxm = dt_1.Rows[i]["配偶姓名"].ToString().Trim();
string znrq = dt_1.Rows[i]["子女出生日期"].ToString().Trim();
//DateTime d_znrq = Convert.ToDateTime(znrq);
bool xt_flag = false;
for (int j = 0; j < dt_2.Rows.Count; j )
{
string ylxm2 = dt_2.Rows[j]["育妇姓名"].ToString().Trim();
string poxm2 = dt_2.Rows[j]["配偶姓名"].ToString().Trim();
string znrq2 = dt_2.Rows[j]["小孩出生"].ToString().Trim();
try
{
znrq2 = znrq2.Substring(0, 4) "-" znrq2.Substring(4, 2) "-" znrq2.Substring(6, 2);
}
catch { }
//DateTime d_znrq2 = Convert.ToDateTime(znrq2);
if (ylxm == ylxm2 && poxm == poxm2 && znrq == znrq2)
{
xt_flag = true;
dt_oy.Rows.Add(dt_1.Rows[i].ItemArray);
//j = dt_2.Rows.Count; //求表一表二都有，跳出
break;
}
}
if (xt_flag == false) //求只有表一有
{
dt_o1.Rows.Add(dt_1.Rows [i].ItemArray);
}
}
//求只有表二有
for (int i = 0; i < dt_2.Rows.Count; i )
{
string ylxm = dt_2.Rows[i]["育妇姓名"].ToString().Trim();
string poxm = dt_2.Rows[i]["配偶姓名"].ToString().Trim();
string znrq = dt_2.Rows[i]["小孩出生"].ToString().Trim();
try
{
znrq = znrq.Substring(0, 4) "-" znrq.Substring(4, 2) "-" znrq.Substring(6, 2);
}
catch { }
bool xt_flag = false;
for (int j = 0; j < dt_1.Rows.Count; j )
{
string ylxm2 = dt_1.Rows[j]["育妇姓名"].ToString().Trim();
string poxm2 = dt_1.Rows[j]["配偶姓名"].ToString().Trim();
string znrq2 = dt_1.Rows[j]["子女出生日期"].ToString().Trim();
if (ylxm == ylxm2 && poxm == poxm2 && znrq == znrq2)
{
xt_flag = true;
//j = dt_2.Rows.Count; //相同，跳出
break;
}
}
if (xt_flag == false) //只有表二有
{
dt_o2.Rows.Add(dt_2.Rows[i].ItemArray);
}
}
only_1.DataSource = dt_o1.DefaultView; //只有表一有
only_2.DataSource = dt_o2.DefaultView; //只有表二有
only_y.DataSource = dt_oy.DefaultView; //二个表都有
lbl_only1.Text = dt_o1.Rows .Count "条";
lbl_only2.Text = dt_o2.Rows.Count "条";
lbl_onlyy.Text = dt_oy.Rows.Count "条";
t_only1.Text = "c:\\只有表一.xls";
t_only2.Text = "c:\\只有表二.xls";
t_onlyy.Text = "c:\\表一表二共有.xls";
MessageBox.Show("比对完成，请查看！");
}
#region 注释
/// <summary>
/// 导出Excel
/// </summary>
/// <param name="gridView"></param>
public static void SaveAs(DataGridView gridView)
{
//导出到execl
try
{
SaveFileDialog saveFileDialog = new SaveFileDialog();
saveFileDialog.Filter = "导出Excel (*.xls)|*.xls";
saveFileDialog.FilterIndex = 0;
saveFileDialog.RestoreDirectory = true;
saveFileDialog.CreatePrompt = true;
saveFileDialog.Title = "导出文件保存路径";
saveFileDialog.ShowDialog();
string strName = saveFileDialog.FileName;
if (strName.Length != 0)
{
//toolStripProgressBar1.Visible = true;
System.Reflection.Missing miss = System.Reflection.Missing.Value;
Microsoft.Office.Interop.Excel.ApplicationClass excel = new Microsoft.Office.Interop.Excel.ApplicationClass();
excel.Application.Workbooks.Add(true); ;
excel.Visible = false;//若是true，则在导出的时候会显示EXcel界面。
if (excel == null)
{
MessageBox.Show("EXCEL无法启动！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
Microsoft.Office.Interop.Excel.Workbooks books = (Microsoft.Office.Interop.Excel.Workbooks)excel.Workbooks;
Microsoft.Office.Interop.Excel.Workbook book = (Microsoft.Office.Interop.Excel.Workbook)(books.Add(miss));
Microsoft.Office.Interop.Excel.Worksheet sheet = (Microsoft.Office.Interop.Excel.Worksheet)book.ActiveSheet;
sheet.Name = "test";
int m = 0, n = 0;
//生成列名称 这里i是从1开始的 因为我第0列是个隐藏列ID 没必要写进去
for (int i = 1; i < gridView.ColumnCount; i )
{
excel.Cells[1, i] = gridView.Columns[i].HeaderText.ToString();
}
//填充数据
for (int i = 0; i < gridView.RowCount; i )
{
//j也是从1开始 原因如上 每个人需求不一样
for (int j = 1; j < gridView.ColumnCount; j )
{
if (gridView[j, i].Value.GetType() == typeof(string))
{
if (i < 9 && j == 0)
{
string s = "0" gridView[j-1, i].Value.ToString().Trim();
excel.Cells[i 2, j] = "'" s;
continue;
}
excel.Cells[i 2, j] = "'" gridView[j-1, i].Value.ToString();
}
else
{
excel.Cells[i 2, j] = gridView[j-1, i].Value.ToString();
}
}
// toolStripProgressBar1.Value = 100 / gridView.RowCount;
}
sheet.SaveAs(strName, miss, miss, miss, miss, miss, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange, miss, miss, miss);
book.Close(false, miss, miss);
books.Close();
excel.Quit();
System.Runtime.InteropServices.Marshal.ReleaseComObject(sheet);
System.Runtime.InteropServices.Marshal.ReleaseComObject(book);
System.Runtime.InteropServices.Marshal.ReleaseComObject(books);
System.Runtime.InteropServices.Marshal.ReleaseComObject(excel);
GC.Collect();
MessageBox.Show("数据已经成功导出!", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
// toolStripProgressBar1.Value = 0;
System.Diagnostics.Process.Start(strName);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "错误提示");
}
}
#endregion
private void button4_Click(object sender, EventArgs e)
{
if (dt_o1.Rows.Count > 0)
{
AsposeExcel _Excel = new AsposeExcel(t_only1.Text, "表一");
_Excel.DatatableToExcel(dt_o1);
MessageBox.Show("导出成功，请查看！");
//SaveAs(only_1);
}
}
private void button5_Click(object sender, EventArgs e)
{
if (dt_o2.Rows.Count > 0)
{
AsposeExcel _Excel = new AsposeExcel(t_only2.Text , "表二");
_Excel.DatatableToExcel(dt_o2);
MessageBox.Show("导出成功，请查看！");
}
}
private void button6_Click(object sender, EventArgs e)
{
if (dt_oy.Rows.Count > 0)
{
AsposeExcel _Excel = new AsposeExcel(t_onlyy.Text , "表一表二共有");
_Excel.DatatableToExcel(dt_oy);
MessageBox.Show("导出成功，请查看！");
}
}
#region 注释
//protected bool InsertSQLServer(DataTable dt, string dataname)
//{
// string strCon = @"server=.;database=testmyIVR;uid=sa;pwd=123";
// try
// {
// SqlConnection con = new SqlConnection(strCon);//连接数据库
// con.Open();//打开
// //插入数据
// for (int i = 0; i < dt.Rows.Count; i )
// {
// string strSQL = " Insert into userss values (";
// for (int k = 0; k < dt.Columns.Count; k )
// {
// strSQL = "'" dt.Rows[k].ToString() "',";
// }
// strSQL = strSQL.Substring(0, strSQL.Length - 1);
// strSQL = ")";
// SqlCommand insertCom = new SqlCommand(strSQL, con);
// insertCom.ExecuteNonQuery();
// }
// return true;
// }
// catch
// {
// return false;
// }
//}
//public System.Data.DataView ExcelDataView = new System.Data.DataView();
///// <summary>
///// 导入EXCEL
///// </summary>
//public bool Import(string FileName)
//{
// string sheetname;
// try
// {
// sheetname = GetSheetName(FileName);
// //导入数据；
// string strConn = "Provider=Microsoft.Jet.OLEDB.4.0;" "Data Source=" FileName ";" "Extended Properties='Excel 8.0;HDR=Yes;IMEX=1';";
// OleDbConnection conn = new OleDbConnection(strConn);
// string SQL = "SELECT * FROM [" sheetname "$]";
// OleDbDataAdapter da = new OleDbDataAdapter(SQL, conn);
// DataSet ds = new DataSet();
// da.Fill(ds, "table");
// conn.Close();
// ExcelDataView = ds.Tables["table"].DefaultView;
// ds.Tables.Clear();
// return true;
// }
// catch (Exception ex)
// {
// return false;
// }
//}
#endregion
}
}
标签： c# Excel 比对
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