急！！！在asp.net C#中，如何将数据库（sql）中...-asp.net导出excel表,asp导出excel

C#把查询7a686964616fe78988e69d83337出来的数据导出到Excel代码的代码如下：
1、创建form
public Form1()
{
InitializeComponent();
}

2、点击button开始查询db并导入excel数据
private void button1_Click(object sender, EventArgs e)
{
SqlConnection cnn ; //sql连接对象
string connectionString = null; 数据库连接串
string sql = null; 执行sql定义
string data = null; 初始化结果
int i = 0;
int j = 0;
//以下是声明并创建excel文件
Excel.Application xlApp ;
Excel.Workbook xlWorkBook ;
Excel.Worksheet xlWorkSheet ;
object misValue = System.Reflection.Missing.Value;

xlApp = new Excel.Application();
xlWorkBook = xlApp.Workbooks.Add(misValue);
xlWorkSheet = (Excel.Worksheet)xlWorkBook.Worksheets.get_Item(1);
//开始连接数据库
connectionString = "data source=servername;initial catalog=databasename;user id=username;password=password;";
cnn = new SqlConnection(connectionString);
cnn.Open(); //打开数据库
sql = "SELECT * FROM Product"; //定义查询sql语句
SqlDataAdapter dscmd = new SqlDataAdapter(sql, cnn); //执行查询
DataSet ds = new DataSet();
dscmd.Fill(ds);

for (i = 0; i <= ds.Tables[0].Rows.Count - 1; i++)
{
for (j = 0; j <= ds.Tables[0].Columns.Count - 1; j++)
{
data = ds.Tables[0].Rows[i].ItemArray[j].ToString();
xlWorkSheet.Cells[i + 1, j + 1] = data;
}
}
//数据导入到excel文件
xlWorkBook.SaveAs("csharp.net-informations.xls", Excel.XlFileFormat.xlWorkbookNormal, misValue, misValue, misValue, misValue, Excel.XlSaveAsAccessMode.xlExclusive, misValue, misValue, misValue, misValue, misValue);
xlWorkBook.Close(true, misValue, misValue);
xlApp.Quit();
releaseObject(xlWorkSheet);
releaseObject(xlWorkBook);
releaseObject(xlApp);
MessageBox.Show("Excel file created , you can find the file c:\\csharp.net-informations.xls");
}

先将数据绑定到一个控件中e79fa5e98193e78988e69d83338，例如gridview：
放一个按钮，代码如下:
protected void ibtnExcel_Click(object sender, ImageClickEventArgs e)
{
string FileName = "标题 " + DateTime.Now + ".xls";
Response.Charset = "GB2312";
Response.ContentEncoding = Encoding.UTF8;//System.Text
//如果设置GB2312会出现乱码
Response.AddHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());
Response.AddHeader("content-type", "application / ms - excel");//设置输出文件的类型
//或Response.ContentType = FileType;
//定义一个输出流
StringWriter tw = new StringWriter();//System.IO
HtmlTextWriter hw = new HtmlTextWriter(tw);
gridview1.RenderControl(hw);//gridview绑定
Response.Write(tw.ToString());
Response.End();
}

public override void VerifyRenderingInServerForm(Control control)
{
//必须写这个；
}
1、获取数据库数据；
2、将数据写入文件流FileStream
3、将文件流写入页面输出流

你好，可以根据DataGrid将数据导出到excel的方法，原理7a686964616fe4b893e5b19e332都是一样的
public void ExportToExcel(Page myPage,DataGrid ctl,string filename)
{
HttpResponse Response;
Response=myPage.Response;

bool CurrCtlVisible=ctl.Visible;
ctl.Visible=true;
Response.AppendHeader("Content-Disposition","attachment;filename="+filename+".xls");
Response.ContentEncoding = System.Text.Encoding.GetEncoding("utf-8");
Response.ContentType = "application/ms-excel";
ctl.Page.EnableViewState = false;
System.IO.StringWriter tw = new System.IO.StringWriter();
System.Web.UI.HtmlTextWriter hw = new HtmlTextWriter(tw);
ctl.RenderControl(hw);
Response.Write(tw.ToString());
Response.End();

ctl.Page.EnableViewState = true;
ctl.Visible=CurrCtlVisible;
}