protected void btnToExcel_Click(object sender, EventArgs e)
{
//设置文档输出类型
Response.Clear();
Response.Buffer = true;
Response.Charset = "GB2312";
Response.AppendHeader("Content-Disposition",
"attachment;filename=文件名.xls");
//如果设置为GetEncoding("GB2312");导出的文件将会出现乱码！！！
Response.ContentEncoding = System.Text.Encoding.UTF7;
//设置输出文件类型为excel文件
Response.ContentType = "application/vnd.ms-excel";
//输出表格数据
StringWriter stringWriter = new StringWriter();
HtmlTextWriter htmlTextWriter = new HtmlTextWriter(stringWriter);
this.gvScore.RenderControl(htmlTextWriter);
// Response.Output.Write(stringWriter.ToString());
Response.Flush();
//根据<br/>换行
Response.Write(stringWriter.ToString().Replace("<br/>", "<br style='mso-data-placement:same-cell;'/><br style='mso-data-placement:same-cell;'/> "));
//结束
Response.End();
}
private void SaveAs() //另存新档按钮 导出成Excel
{
SaveFileDialog saveFileDialog = new SaveFileDialog();
saveFileDialog.Filter = "Execl files (*.xls)|*.xls";
saveFileDialog.FilterIndex = 0;
saveFileDialog.RestoreDirectory = true;
saveFileDialog.CreatePrompt = true;
saveFileDialog.Title = "Export Excel File To";
saveFileDialog.ShowDialog();
Stream myStream;
myStream = saveFileDialog.OpenFile();
StreamWriter sw = new StreamWriter(myStream, System.Text.Encoding.GetEncoding("gb2312"));
// StreamWriter sw = new StreamWriter(myStream, System.Text.Encoding.GetEncoding(-0));
string str = "";
try
{
//写标题
for (int i = 0; i < dgvAgeWeekSex.ColumnCount; i++)
{
if (i > 0)
{
str += "\t";
}
str += dgvAgeWeekSex.Columns[i].HeaderText;
}
sw.WriteLine(str);
//写内容
for (int j = 0; j < dgvAgeWeekSex.Rows.Count; j++)
{
string tempStr = "";
for (int k = 0; k < dgvAgeWeekSex.Columns.Count; k++)
{
if (k > 0)
{
tempStr += "\t";
}
tempStr += dgvAgeWeekSex.Rows[j].Cells[k].Value.ToString();
}
sw.WriteLine(tempStr);
}
sw.Close();
myStream.Close();
}
catch (Exception e)
{
MessageBox.Show(e.ToString());
}
finally
{
sw.Close();
myStream.Close();
}
}
using System.Data.OleDb;
public class Program
{
static void Main()
{
string connString = "Provider = Microsoft.Jet.Ole.4.0;Data Source = EXCEL文件路径;Extended Properties = 'Excel 8.0;HDR=YES;IMEX=1'";
//实例化OleDbConnection对象
using(OleDbConnection connection = new OleDbConnection(connString))
{
//SQL语句
string sql = "Select * from [Sheet1$]";
//实例化OleDbCommand对象
using(OleDbCommand objCommand = new OleDbCommand(sql,connection))
{
//打开数据库连接
connection.Open();
//实例化OleDbDataReader对象
using(OleDbDataReader objReader = objCommand.ExecuteReader())
{
if(objReader.HasRows)
{
while(objReader.Read())
{
//objReader["列名或索引号"]
}
}
}
}
}
}
}
