C# WinForm下Excel导入导出
//引用命名空间 using Microsoft.Office.Interop.Excel;
//DataGridView 导出到Excel
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==1)
{
string s="0"+gridView[j, i].Value.ToString().Trim();
excel.Cells[i + 2, j] = "'" +s;
continue;
}
excel.Cells[i + 2, j] = "'" + gridView[j, i].Value.ToString();
}
else
{
excel.Cells[i + 2, j ] = gridView[j, 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");
}
}
//获得当前你选择的Excel Sheet的所有名字
public static string[] GetExcelSheetNames(string filePath)
{
Excel.ApplicationClass excelApp = new Excel.ApplicationClass();
Excel.Workbooks wbs = excelApp.Workbooks;
Excel.Workbook wb = wbs.Open(filePath, Type.Missing, Type.Missing, Type.Missing, Type.Missing,
Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing,
Type.Missing, Type.Missing, Type.Missing, Type.Missing);
int count=wb.Worksheets.Count;
string[]names=new string[count];
for (int i = 1; i <= count; i++)
{
names[i-1]=((Excel.Worksheet)wb.Worksheets[i]).Name;
}
return names;
}
//Excel导入到数据库Access中
//filePath 你的Excel文件路径
public static bool Import(string filePath)
{
try
{
//Excel就好比一个数据源一般使用
string strConn = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + filePath + ";" + "Extended Properties=Excel 8.0;";
OleDbConnection con = new OleDbConnection(strConn);
con.Open();
string[] names = GetExcelSheetNames(filePath);
if (names.Length > 0)
{
foreach (string name in names)
{
OleDbCommand cmd = con.CreateCommand();
cmd.CommandText = string.Format(" select * from [{0}$]", name) ;//[sheetName$]要如此格式
OleDbDataReader odr = cmd.ExecuteReader();
while (odr.Read())
{
if (odr[0].ToString()== "序号")//过滤列头 按你的实际Excel文件
continue;
Add(odr[1].ToString(), odr[2].ToString(), odr[3].ToString());//数据库添加操作
}
odr.Close();
}
}
return true;
}
catch (Exception)
{
return false;
}
}