Datagrid 导入到EXcel乱码的朋友,这里绝对解决

今天怎么有客户反应导出的excel的乱码,??!!我记得我测试过的啊,后来我用服务器上的再测了下,确实有的会乱码有的却不会,真是奇怪,后来改它的编码utf-8 big5 都试了,就是不行,网上找了一个遇到同样问题的朋友的解决方案,确实可行!!不错,谢谢

被注释的是我之前用的,不好的方法,


private void BtnPushExcel_Click(object sender, System.EventArgs e)




...{


string fileName = "Excel.xls";


Export(this.DataGrid1,fileName);


// HttpContext.Current.Response.AppendHeader("Content-Disposition","attachment;filename="+HttpUtility.UrlEncode(fileName,System.Text.Encoding.UTF8));


// HttpContext.Current.Response.Charset ="UTF-8";


// //HttpContext.Current.Response.ContentEncoding =System.Text.Encoding.GetEncoding("BIG5");


// HttpContext.Current.Response.ContentEncoding =System.Text.Encoding.GetEncoding("BIG5");


// HttpContext.Current.Response.ContentType ="application/ms-excel";


// Datagrid2.Page.EnableViewState =false;


// System.IO.StringWriter tw = new System.IO.StringWriter() ;


// System.Web.UI.HtmlTextWriter hw = new System.Web.UI.HtmlTextWriter (tw);


// this.DataGrid1.RenderControl(hw);


// HttpContext.Current.Response.Write(tw.ToString());


// HttpContext.Current.Response.End();






}

private void Export(System.Web.UI.WebControls.DataGrid dg,string fileName)
{

System.Web.HttpResponse httpResponse = Page.Response;
httpResponse.AppendHeader("Content-Disposition","attachment;filename="+HttpUtility.UrlEncode(fileName,System.Text.Encoding.UTF8));
httpResponse.ContentEncoding=System.Text.Encoding.GetEncoding("BIG5");
httpResponse.ContentType ="application/ms-excel";
System.IO.StringWriter tw = new System.IO.StringWriter() ;
System.Web.UI.HtmlTextWriter hw = new System.Web.UI.HtmlTextWriter (tw);
dg.RenderControl(hw);
string filePath = Server.MapPath("..")+fileName;
System.IO.StreamWriter sw = System.IO.File.CreateText(filePath);
sw.Write(tw.ToString());
sw.Close();

DownFile(httpResponse,fileName,filePath);
httpResponse.End();
}

private bool DownFile(System.Web.HttpResponse Response,string fileName,string fullPath)
{
try
{
Response.ContentType = "application/octet-stream";

Response.AppendHeader("Content-Disposition","attachment;filename=" +
HttpUtility.UrlEncode(fileName,System.Text.Encoding.UTF8) + ";charset=BIG5");
System.IO.FileStream fs= System.IO.File.OpenRead(fullPath);
long fLen=fs.Length;
int size=102400;//每100K同时下载数据
byte[] readData = new byte[size];//指定缓冲区的大小
if(size>fLen)size=Convert.ToInt32(fLen);
long fPos=0;
bool isEnd=false;
while (!isEnd)
{
if((fPos+size)>fLen)
{
size=Convert.ToInt32(fLen-fPos);
readData = new byte[size];
isEnd=true;
}
fs.Read(readData, 0, size);//读入一个压缩块
Response.BinaryWrite(readData);
fPos+=size;
}
fs.Close();
System.IO.File.Delete(fullPath);
return true;
}
catch
{
return false;
}
}