一、将DATASET中的内容导出到EXCEL或XML文件中
Code
1using System;
2using System.Data;
3using System.Configuration;
4using System.Collections;
5using System.Web;
6using System.Web.Security;
7using System.Web.UI;
8using System.Web.UI.WebControls;
9using System.Web.UI.WebControls.WebParts;
10using System.Web.UI.HtmlControls;
11using System.Data;
12using System.Data.SqlClient;
13
14public partial class SubPage_DatasetTOexcel : System.Web.UI.Page
15{
16 string OutPutName = DateTime.Now.ToString("yyyyMMdd");
17 // string OutPutName = DateTime.ToString("yyyyMMdd", DATETIMEF.InvariantInfo);
18
19 protected void Page_Load(object sender, EventArgs e)
20 {
21
22 }
23 //DATASET to excel
24 public void CreateExcel(DataSet ds, string typeid, string FileName)
25 {
26 HttpResponse resp;
27 resp = Page.Response;
28 resp.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312");
29 resp.ContentType = "application/ms-excel";
30
31 resp.AddHeader("Content-Disposition",
32"attachment; filename=" + System.Web.HttpUtility.UrlEncode(FileName, System.Text.Encoding.UTF8) + ".xls");
33
34 this.EnableViewState = false;
35
36 string colHeaders = "", Is_item = "";
37 int i = 0;
38
39 //定义表对象与行对象,同时使用DataSet对其值进行初始化
40 DataTable dt = ds.Tables[0];
41 DataRow[] myRow = dt.Select("");
42 //typeid=="1"时导出为Excel格式文件;typeid=="2"时导出为XML文件
43 if (typeid == "1")
44 {
45 //取得数据表各列标题,标题之间以\t分割,最后一个列标题后加回车符
46 for (i = 0; i < dt.Columns.Count; i++)
47 {
48 colHeaders += dt.Columns[i].Caption.ToString() + "\t";
49 }
50 colHeaders += "\n";
51
52 resp.Write(colHeaders);
53 //逐行处理数据
54 foreach (DataRow row in myRow)
55 {
56 //在当前行中,逐列取得数据,数据之间以\t分割,结束时加回车符\n
57 for (i = 0; i < dt.Columns.Count; i++)
58 {
59 Is_item += row[i].ToString() + "\t";
60 }
61 Is_item += "\n";
62 resp.Write(Is_item);
63 Is_item = "";
64 }
65 }
66 else
67 {
68 if (typeid == "2")
69 {
70 //从DataSet中直接导出XML数据并且写到HTTP输出流中
71 resp.Write(ds.GetXml());
72 }
73 }
74 //写缓冲区中的数据到HTTP头文件中
75 resp.End();
76
77 }
78
79 protected void ImageButton1_Click(object sender, ImageClickEventArgs e)
80 {
81 // SqlConnection con = new SqlConnection("server=DAIJING\\SQLEXPRESS;uid=sa;pwd=sa;database=pubs");
82 SqlConnection con = new SqlConnection("server=DAIJING\\SQLEXPRESS;database=KJESMS_PSI;uid=sa;pwd=sa");
83 con.Open();
84
85 SqlDataAdapter cmd = new SqlDataAdapter("SELECT * FROM tb_bl_city", con);
86
87 DataSet ds = new DataSet();
88 cmd.Fill(ds);
89
90 CreateExcel(ds, "1", OutPutName);
91 con.Close();
92
93 }
94}
95
96 二、将DataSet导出到Excel文件中
导出#region 导出
private void cmdExport_ServerClick(object sender, System.EventArgs e)
{
try
{
string DownloadPath=Server.MapPath("../DataFolder/FileExport"); //副本的文件夹路径。
//副本的文件名。
string TempFileName = DateTime.Now.ToString("yyyyMMdd") + DateTime.Now.Hour + DateTime.Now.Minute + DateTime.Now.Second + ".XLS";
this.txtTempFileName.Text=TempFileName;
object missing = System.Reflection.Missing.Value;
object missing2 = System.Reflection.Missing.Value;
Excel.Application myExcel=new Excel.Application();
Excel.Workbook myBook=(Excel.Workbook)myExcel.Workbooks.Add(missing);
Excel.Worksheet curSheet = (Excel.Worksheet)myBook.Sheets[1];
//设置Excel样式
Range r1=(Range)myExcel.Cells[1,2];
Range r2=(Range)myExcel.Cells[3,4];
//Range r10=(Range)myExcel.Cells[9,10];
//r10.AutoOutline();
//r10.FillLeft();
r1.Font.Bold=true;
r1.Font.Color=Information.RGB(0,255,0);
r2.Font.Bold=true;
string DownloadFilePath=DownloadPath+"\\"+TempFileName;
DataSet ds=this.GetDataSet();
int rc=ds.Tables[0].Rows.Count;
//绘制边框
Range rBorders=(Range)curSheet.get_Range(myExcel.Cells[7,1],myExcel.Cells[7+rc+1,10]);
rBorders.Borders.LineStyle=1;
curSheet.get_Range(myExcel.Cells[7,1],myExcel.Cells[7+rc+1,1]).Borders[XlBordersIndex.xlEdgeLeft].Weight = XlBorderWeight.xlThick;//设置左边线加粗
curSheet.get_Range(myExcel.Cells[7,1],myExcel.Cells[7,10]).Borders[XlBordersIndex.xlEdgeTop].Weight = XlBorderWeight.xlThick;//设置设置上边线加粗
curSheet.get_Range(myExcel.Cells[7+rc+1,1],myExcel.Cells[7+rc+1,10]).Borders[XlBordersIndex.xlEdgeBottom].Weight = XlBorderWeight.xlThick;//设置下边线加粗
curSheet.get_Range(myExcel.Cells[7,10],myExcel.Cells[7+rc+1,10]).Borders[XlBordersIndex.xlEdgeRight].Weight = XlBorderWeight.xlThick;//设置右边线加粗
//Excel的表头信息
myExcel.Cells[1,2]=this.lblExcelHead.Text;
myExcel.Cells[2,2]="New Added:" + DateTime.Now.ToString();
myExcel.Cells[3,4]="VENDOR CODE LIST - BY PRODUCTS.";
myExcel.Cells[4,4]="****************************************";
myExcel.Cells[5,9]="DATE From:" + this.txtCreateDate.Text;
myExcel.Cells[6,9]="DATE To:" + this.txtDateNow.Text;
myExcel.Cells[7,5]="PARTS SUPPLIER";
//设置Excel表列头
myExcel.Cells[8,1]="Item";
myExcel.Cells[8,2]="OrgCode";
myExcel.Cells[8,3]="VendorCode";
myExcel.Cells[8,4]="VendorName";
myExcel.Cells[8,5]="A";
myExcel.Cells[8,6]="B";
myExcel.Cells[8,7]="C";
myExcel.Cells[8,8]="PayMentType";
myExcel.Cells[8,9]="TermsCode";
myExcel.Cells[8,10]="CreateTime";
//设置表头字体风格
curSheet.get_Range(myExcel.Cells[7,1],myExcel.Cells[8,10]).Font.Bold=true;
int j=1;//j为总结的Item数目的变量
int i=9;
while (i-8<=ds.Tables[0].Rows.Count)
{
myExcel.Cells[i,1]=j.ToString();
myExcel.Cells[i,2]=ds.Tables[0].Rows[i-9]["OrgCode"].ToString().Trim();
myExcel.Cells[i,3]=ds.Tables[0].Rows[i-9]["VendorCode"].ToString().Trim();
myExcel.Cells[i,4]=ds.Tables[0].Rows[i-9]["VendorName"].ToString().Trim();
myExcel.Cells[i,5]="";
myExcel.Cells[i,6]="";
myExcel.Cells[i,7]="";
myExcel.Cells[i,8]=ds.Tables[0].Rows[i-9]["PayType"].ToString().Trim();
myExcel.Cells[i,9]=ds.Tables[0].Rows[i-9]["TermsCode"].ToString().Trim();
myExcel.Cells[i,10]=Convert.ToDateTime(ds.Tables[0].Rows[i-9]["CreateTime"].ToString()).ToShortDateString().Trim();
if(Convert.ToDateTime(ds.Tables[0].Rows[i-9]["CreateTime"].ToString()).Month==Convert.ToDateTime(this.txtDateNow.Text).Month)
{
for(int qq=1;qq<=10;qq++)
{
Range r=(Range)myExcel.Cells[i,qq];
r.Font.Color=Information.RGB(0,255,0);
r=null;
}
}
//设置颜色,否则日期显示成"######"格式。
Range rCol10=(Range)myExcel.Cells[i,10];
rCol10.Font.Color=Information.RGB(0,0,0);
rCol10=null;
//从1开始循环
j++;
i++;
}
myBook.Saved=true;
myBook.SaveAs(DownloadFilePath,missing2,"","",false,false,Excel.XlSaveAsAccessMode.xlNoChange,1,false,missing,missing);
//myBook.PrintPreview(0);
//myBook.PrintOut(missing,missing,missing,missing,missing,missing,missing,missing);
myBook.Close(false, null,null);
myExcel.Quit();
System.Runtime.InteropServices.Marshal.ReleaseComObject(myBook);
System.Runtime.InteropServices.Marshal.ReleaseComObject(myExcel);
myBook = null;
myExcel = null;
GC.Collect();
//Response.Redirect(DownloadFilePath);//下载文件
try
{
BomUploadController BUC=new BomUploadController();
BUC.KillProcess("Excel");
}
//错误信息的处理
catch (BomUploadController.FileException ex)
{
string[] errCase=ex.ErrorString.Split("!".ToCharArray());
string script = "<Script language=javascript>";
if(errCase[1].Trim()=="6")
{
script+="alert('" + errCase[0] + this.lblProcErr.Text.Trim()+ "');";
}
script += "</Script>";
Page.RegisterStartupScript("fileException", script);
}
Session["OVSDownloadFilePath"]=DownloadFilePath;
Session["OVSTempFileName"]=TempFileName;
Response.Write("<Script language=\"javascript\">window.open(\"TempShow.aspx\",\"\",\"\");</Script>");
this.BindWebGridColumn();
}
catch(Exception Ex)
{
throw Ex;
}
/**//*finally
{
BomUploadController BUC=new BomUploadController();
BUC.KillProcess("Excel");
}*/
}
#endregion
//TempShow.aspx.cs页面文件
public class TempShow : System.Web.UI.Page
{
private void Page_Load(object sender, System.EventArgs e)
{
// 在此处放置用户代码以初始化页面
if(!this.IsPostBack)
{
try
{
string DownloadFilePath="";
string TempFileName="";
if(Session["OVSDownloadFilePath"]!=null && Session["OVSTempFileName"]!=null)
{
DownloadFilePath=Session["OVSDownloadFilePath"].ToString();
TempFileName=Session["OVSTempFileName"].ToString();
}
else
{
Response.Write("<script>window.close();</script>");
return;
}
System.IO.FileInfo fleInfo = new System.IO.FileInfo(DownloadFilePath);
Response.Clear();
Response.Buffer=true;
Response.Charset = "GB2312";
Response.AddHeader("Content-Disposition","attachment; filename="+TempFileName.Trim()+"");
//'------------------------------------------inline(在线打开),attachment(下载)
Response.AddHeader("Content-Length", fleInfo.Length.ToString());
Response.ContentType = "application/ms-excel";
Response.WriteFile(fleInfo.FullName);
Session.Remove("OVSDownloadFilePath");
Session.Remove("OVSTempFileName");
//Response.Write("<script>window.close();</script>");
//Response.End();
}
catch(Exception Ex)
{
throw Ex;
}
finally
{
//Response.Write("<script>alert('haha');</script>");
Response.Write("<Script>window.close();</Script>");
Response.End();
}
}
}
三、把指定的DataSet中的内容导出到Excel中
/**//// <summary>
/// 把指定的DataSet中的内容导出到Excel中.
/// </summary>
/// <param name="ds">ds参数为DateSet对象</param>
/// <param name="ImpStr">该字符串用来指定一些字段来导出,其使用格式为:aaa|AAA,bbb|BBB 小写字符串为在Excel表中显示该字段的列标题,大写表示字段名.不同字段使用逗号分隔.</param>
/// <param name="locR">数据导出到Excel中的开始行</param>
/// <param name="locC">数据导出到Excel中的开始列</param>
/// <param name="TitleStr">该字符串用来指定要导出的表和表的标题其格式为:aaa|AAA,bbb|BBB 小写为该表中显示的标题,大写为表名称.不同表使用逗号分隔</param>
/// <param name="TilteLocR">显示标题的行</param>
/// <param name="TitleLocC">显示标题的列</param>
/// <param name="ColTitleColorIndex">列标题颜色索引</param>
/// <example>Import2Excel(this.dsData ,"用户名|USERNAME,登录名|LOGINNAME",3,1,"用户名列表|BILL_USER",1,2 ,12);</example> private void Import2Excel(System.Data.DataSet ds,string ImpStr ,int locR,int locC,string TitleStr,int TilteLocR, int TitleLocC,int ColTitleColorIndex )
{
//加载Excel
Microsoft.Office.Interop.Excel.ApplicationClass ex=new Microsoft.Office.Interop.Excel.ApplicationClass();
ex.Visible=true ;//显示Excel
if (ex==null)
{
//无法显示时报错
MessageBox.Show("无法启动 Microsoft Office Excel,导出失败!","Import2Excel", MessageBoxButtons.OK,MessageBoxIcon.Stop );
return ;
}
string[] tles=TitleStr.Split(",".ToCharArray());
string[] Imps=ImpStr.Split(",".ToCharArray()) ;
string[] tlbs=TitleStr.Split(",".ToCharArray ());
//获得工作薄
Microsoft.Office.Interop.Excel.Workbooks wbs =ex.Workbooks;
Microsoft.Office.Interop.Excel.Workbook wb= wbs.Add(Microsoft.Office.Interop.Excel.XlWBATemplate.xlWBATWorksheet);
int z=0;//Sheet索引
foreach (string tblname in tlbs)
{
z+=1;
//得到表和工作表一个工作表对应一个表,
string[] tbn=tblname.Split("|".ToCharArray());
System.Data.DataTable dt=ds.Tables[tbn[1].ToUpper() ];
Microsoft.Office.Interop.Excel.Worksheet ws=
(Microsoft.Office.Interop.Excel.Worksheet)wb.Worksheets[z];
//工作表的第一行标题设置为该表的表名.
//从格式字符串中去表名对应的名称.
// int tm1=TitleStr.ToUpper().IndexOf(dt.TableName+"|")+dt.TableName.Length +1;
// string tit=TitleStr.Substring(tm1,TitleStr.IndexOf(",",tm1)-tm1);
ws.Cells[TilteLocR, TitleLocC]=tbn[0] ;//设置该单元格显示的标题
ws.Name=dt.TableName ;//设置该Sheet的名称为表名.
int n1=locC;
//设置字段名称
foreach (string imp in Imps)
{
string[] im=imp.Split("|".ToCharArray());
n1+=1 ;
ws.Cells[locR, n1]=im[0];//'字段名称
Microsoft.Office.Interop.Excel.Range rg=
(Microsoft.Office.Interop.Excel.Range)ws.Cells[locR, n1];
rg.Interior.ColorIndex=ColTitleColorIndex;
rg.Font.Bold=true;
}
for (int y=0;y<=dt.Rows.Count -1;y+=1)
{
System.Data.DataRow dr=dt.Rows[y];
int n2=1;
foreach (string imp in Imps)
{
string[] im=imp.Split("|".ToCharArray());
ws.Cells[locR+1+y,locC+n2]=dr[im[1].ToUpper()];
n2+=1;
}
}
}
}
四、高速从DataSet导出到Excel的方案
// 将当前查询的数据导入Excel中
SqlConnection con = new SqlConnection(ConfigurationManager.AppSettings["sqlcon"]);
// 设置为true,则在当前的数据上追加数据,否则,重写当前数据
StreamWriter w = new StreamWriter(Server.MapPath("数据库.xls"), false, Encoding.Default);
con.Open();
try
{
SqlCommand SqlCmd = con.CreateCommand();
SqlCmd.CommandText = "select * from flysoblog";
SqlDataReader Reader = SqlCmd.ExecuteReader();
for (int i = 0; i < Reader.FieldCount; ++i)
{
w.Write(Reader.GetName(i));
w.Write('\t');
}
w.Write("\r\n");
object[] values = new object[Reader.FieldCount];
while (Reader.Read())
{
Reader.GetValues(values);
for (int i = 0; i < values.Length; ++i)
{
w.Write(values[i].ToString());
w.Write('\t');
}
w.Write("\r\n");
}
w.Flush();
w.Close();
Reader.Close();
con.Close();
Response.Redirect("数据库.xls");
}
catch
{
w.Close();
con.Close();
return;
}
五、DataGrid内容导出标准的Excel格式文件
前言:
用传统的导出方法:只是将DataGrid信息用html输出,文件名后辍是.xls而已。如果想将这个方法导入到Sql Server 中,会提示出错。因为它不是标准的Excel格式文件。
用本例中的导出方法:会输出标准的Excel格式文件,非常稳定,不会死锁Excel进程,支持中文文件名,支持表头导出,支持大多数数据库导入。
实现算法:
利用Excel组件将DataGrid控件内容生成Excel临时文件,并存放在服务器上,并用Response方法将生成的Excel文件下载到客户端,再将生成的临时文件删除。
具体步骤:
1.在项目中引用Excel组件
Interop.Excel.dll 文件版本1.3.0.0
2.项目中应有一个目录(本例中Template目录),以便存放Excel文件(名字自己定)
3.导入方法类
/**//// <summary>
/// 将DataGrid中数据导出至Excel,生成标准的Excel文件
/// </summary>
/// <param name="grid">DataGrid控件ID</param>
/// <param name="fileName">导出文件名</param> protected void ExportToExcel(System.Web.UI.WebControls.DataGrid grid,string fileName)
{
string templetFilePath;
templetFilePath = Server.MapPath("../").ToString() + @"Template\";
object missing = Missing.Value;
Excel.Application app;
Excel.Workbook workBook;
Excel.Worksheet workSheet;
Excel.Range range;
//创建一个Application对象并使其不可见
app = new Excel.ApplicationClass();
app.Visible=false;
//打开模板文件,得到WorkBook对象
//workBook = app.Workbooks.Open(templetFilePath + "SuperTemplet.xls", missing, missing, missing, missing, missing,
// missing, missing, missing, missing, missing, missing, missing);
//创建一个WorkBook对象
workBook = app.Workbooks.Add(missing);
//得到WorkSheet对象
workSheet = (Excel.Worksheet)workBook.Sheets.get_Item(1);
int rowCount = grid.Items.Count + 1; //DataTable行数+GirdHead
int colCount = grid.Columns.Count; //DataTable列数
//利用二维数组批量写入
string[,] arr = new string[rowCount, colCount];
for (int j = 0; j < rowCount; j++)
{
for (int k = 0; k < colCount; k++)
{
if (j == 0)
{
arr[j, k] = grid.Columns[k].HeaderText;
}
else
{
arr[j, k] = grid.Items[j - 1].Cells[k].Text.ToString();
}
}
}
range = (Excel.Range)workSheet.Cells[1, 1]; //写入Exel的坐标
range = range.get_Resize(rowCount, colCount);
range.Value = arr;
workBook.SaveAs(templetFilePath + fileName, missing, missing, missing, missing, missing,Excel.XlSaveAsAccessMode.xlExclusive, missing, missing, missing, missing);
if (workBook.Saved)
{
workBook.Close(null, null, null);
app.Workbooks.Close();
app.Quit();
}
if (range != null)
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(range);
range = null;
}
if (workSheet != null)
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(workSheet);
workSheet = null;
}
if (workBook != null)
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(workBook);
workBook = null;
}
if (app != null)
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(app);
app = null;
}
GC.Collect();//强制代码垃圾回收
//下载文件
DownLoadFile(templetFilePath,fileName);
}
4.下载文件方法类
/**//// <summary>
/// 下载服务器文件到客户端
/// </summary>
/// <param name="_FilePath">文件路径</param>
/// <param name="_FileName">文件名</param>
/// <returns>返回 bool型</returns> private bool DownLoadFile(string _FilePath,string _FileName)
{
try
{
System.IO.FileStream fs = System.IO.File.OpenRead(_FilePath+_FileName);
byte[] FileData = new byte[fs.Length];
fs.Read(FileData, 0, (int)fs.Length);
Response.Clear();
Response.AddHeader("Content-Type", "application/ms-excel");
string FileName = System.Web.HttpUtility.UrlEncode(System.Text.Encoding.UTF8.GetBytes(_FileName));
Response.AddHeader("Content-Disposition", "inline;filename=" + System.Convert.ToChar(34) + FileName + System.Convert.ToChar(34));
Response.AddHeader("Content-Length", fs.Length.ToString());
Response.BinaryWrite(FileData);
fs.Close();
//删除服务器临时文件
System.IO.File.Delete(_FilePath+_FileName);
Response.Flush();
Response.End();
return true;
}
catch(Exception ex)
{
ex.Message.ToString();
return false;
}
}
5.应用方法
protected void btnExportToExcel_Click(object sender, EventArgs e)
{
this.ExportToExcel(grdBudget,"XXXXX.xls");//grdBudget 是DataGrid的ID
} 六、datagrid数据导出到excel文件给客户端下载的几种方法
方法一:导出到csv文件,存放在服务器端任一路径,然后给客户下载
优点:
1、可以进行身份认证后给客户下载,如果放到非web目录就没有对应的url,客户无法随时下载。
2、也是因为生成了文件,所以占用了服务器的空间,但是可以把文件名存放到数据库,再次给客户下载的时候不需要重复生成文件。
3、csv文件是文本文件,逗号隔开字段,回车隔开行,易于数据导入导出。
实现方法:
SqlConnection conn=new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["conn"]);
SqlDataAdapter da=new SqlDataAdapter("select * from tb1",conn);
DataSet ds=new DataSet();
da.Fill(ds,"table1");
DataTable dt=ds.Tables["table1"];
string name=System.Configuration.ConfigurationSettings.AppSettings["downloadurl"].ToString()+DateTime.Today.ToString("yyyyMMdd")+new Random(DateTime.Now.Millisecond).Next(10000).ToString()+".csv";//存放到web.config中downloadurl指定的路径,文件格式为当前日期+4位随机数
FileStream fs=new FileStream(name,FileMode.Create,FileAccess.Write);
StreamWriter sw=new StreamWriter(fs,System.Text.Encoding.GetEncoding("gb2312"));
sw.WriteLine("自动编号,姓名,年龄");
foreach(DataRow dr in dt.Rows)
{
sw.WriteLine(dr["ID"]+","+dr["vName"]+","+dr["iAge"]);
}
sw.Close();
Response.AddHeader("Content-Disposition", "attachment; filename=" + Server.UrlEncode(name));
Response.ContentType = "application/ms-excel";// 指定返回的是一个不能被客户端读取的流,必须被下载
Response.WriteFile(name); // 把文件流发送到客户端
Response.End();
方法二:导出到csv文件,不存放到服务器,直接给浏览器输出文件流
优点:
1、随时生成,不需要占用资源
2、可以结合身份认证
3、同样利于数据交换
实现方法:
SqlConnection conn=new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["conn"]);
SqlDataAdapter da=new SqlDataAdapter("select * from tb1",conn);
DataSet ds=new DataSet();
da.Fill(ds,"table1");
DataTable dt=ds.Tables["table1"];
StringWriter sw=new StringWriter();
sw.WriteLine("自动编号,姓名,年龄");
foreach(DataRow dr in dt.Rows)
{
sw.WriteLine(dr["ID"]+","+dr["vName"]+","+dr["iAge"]);
}
sw.Close();
Response.AddHeader("Content-Disposition", "attachment; filename=test.csv");
Response.ContentType = "application/ms-excel";
Response.ContentEncoding=System.Text.Encoding.GetEncoding("GB2312");
Response.Write(sw);
Response.End();
对方法一,二补充一点,如果你希望导出的是xls文件分隔符用\t就可以了,不要用逗号
代码修改如下:
sw.WriteLine("自动编号\t姓名\t年龄");
foreach(DataRow dr in dt.Rows)
{
sw.WriteLine(dr["ID"]+"\t"+dr["vName"]+"\t"+dr["iAge"]);
}
另外,修改输出的文件扩展名为xls即可。
方法三:从datagrid导出html代码,生成excel文件,给客户端下载
优点:
1、有固定的格式,样子好看(datagrid的样子)
局限性:
1、不适合数据交换,里面有html代码,比较乱,没有固定格式
2、datagrid不能有分页、排序等,否则出错
实现方法:
Response.Clear();
Response.Buffer= false;
Response.Charset="GB2312";
Response.AppendHeader("Content-Disposition","attachment;filename=test.xls");
Response.ContentEncoding=System.Text.Encoding.GetEncoding("GB2312"); Response.ContentType = "application/ms-excel"; this.EnableViewState = false;
System.IO.StringWriter oStringWriter = new System.IO.StringWriter();
System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);
this.DataGrid1.RenderControl(oHtmlTextWriter);
Response.Write(oStringWriter.ToString());
Response.End();
在这里说明一点:有的网友反映代码出现“没有dr["id"]”之类的错误,这个代码是按照我的数据结构来写的,到时候相关的字段要换成你自己的才是。
还有就是如果文件名需要中文的话,这么修改Response.AddHeader("Content-Disposition", "attachment; filename="+System.Web.HttpUtility.UrlEncode("中文",System.Text.Encoding.UTF8)+".xls");