从DataGrids中导出数据到Excel
SQL SERVER 与ACCESS、EXCEL的数据转换（Link0 ， Link1 ， Link2 ， Link3 。。。呵呵，实在不知出自何处了）——不过确是好贴，
其间提到转换SQLServer到Excel时：
EXEC master..xp_cmdshell 'bcp "SELECT au_fname, au_lname FROM pubs..authors ORDER BY au_lname" queryout C:\ authors.xls -c -Sservername -
使用SQLServer自带的bcp命令——应该算是第五种方法了。
bcp 表名 out 文件名 –c –q –S”服务器名” –U”用户名” –P”密码”
bcp ”select 语句” queryout 文件名 –c –q –S”服务器名” –U”用户名” –P”密码”
我只是来把“查询条件”加上，最后组成一个；
EXEC master..xp_cmdshell 'bcp "select * from hrca.dbo.v_k_EmployeeOutput where 公司=''产业集团'' and 部门=''总裁办'' and 是否在职=''Yes''" queryout C:\HRCA\PrintFile\
需要注意的一点不过是''产业集团''等条件要加两个单引号。
“如果字符串包含单引号，则需要在单引号前再增加一个单引号”——语出SQLServer帮助文档“QUOTED_IDENTIFIER”索引。
我的代码：
private void btnEmpOutput_Click(object sender, System.EventArgs e)
{
string connectiongStr = System.Configuration.ConfigurationSettings.AppSettings["MyConnection"];
string serverName = System.Configuration.ConfigurationSettings.AppSettings["ServerName"];
string passWord = System.Configuration.ConfigurationSettings.AppSettings["Password"];
string userId = System.Configuration.ConfigurationSettings.AppSettings["UserID"];
string dbName = System.Configuration.ConfigurationSettings.AppSettings["DatabaseName"];
string physicPath = System.Configuration.ConfigurationSettings.AppSettings["PrintFileTempPath"];
if(!System.IO.Directory.Exists(physicPath))
{
System.IO.Directory.CreateDirectory(physicPath);
}
string fileName = Guid.NewGuid() + ".xls";
string genExcelComm = "EXEC master..xp_cmdshell \'bcp \"select * from "+string.Concat(dbName,".dbo.v_k_EmployeeOutput ");
switch(this.drop_Org.SelectedValue)
{
case "1":
// 查询部门在职员工列表；
genExcelComm += " where 公司=''"+this.txtOLabel1.Text+"'' and 部门=''"+this.txtOLabel2.Text+"'' and 是否在职=''Yes''";
break;
case "2":
// 查询公司在职员工列表；
genExcelComm += " where 公司=''"+this.txtOLabel1.Text+"'' and 是否在职=''Yes''";
break;
case "3":
// 查询部门所有员工列表；
genExcelComm += " where 公司=''"+this.txtOLabel1.Text+"'' and 部门=''"+this.txtOLabel2.Text+"''";
break;
case "4":
// 查询公司所有员工列表；
genExcelComm += " where 公司=''"+this.txtOLabel1.Text+"''";
break;
}
genExcelComm += "\" queryout "+ physicPath + fileName;
genExcelComm += " -c -q -S\""+serverName+"\" -U\""+userId+"\" -P\""+passWord+"\"'";
SqlConnection conn = new SqlConnection(connectiongStr);
SqlCommand command = new SqlCommand(genExcelComm);
command.Connection = conn;
try
{
if(conn.State != ConnectionState.Open)
conn.Open();
command.ExecuteNonQuery();
}
catch(Exception ex)
{
hrca.BusinessLayer.ErrorHandler.Handle(ex.ToString());
this.Message.Text = "导出员工失败。";
return;
}
finally
{
if(conn.State != ConnectionState.Closed)
conn.Close();
command.Dispose();
}
HttpResponse response = HttpContext.Current.Response;
response.Clear();
response.WriteFile( physicPath + fileName);
string httpHeader="attachment;filename="+fileName;
response.AppendHeader("Content-Disposition", httpHeader);
response.Flush();
try
{
System.IO.File.Delete( physicPath + fileName);//删除临时文件
}
catch(Exception)
{
// do nothing
}
response.End();
}