复制代码 代码如下:

public static void CreateExcel(DataSet ds)

{

string filename = DateTime.Now.ToString("yyyyMMddHHmmssff") + ".xls";

HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312");

HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment;filename=" + filename);

string colHeaders = "", ls_item = "";

//定义表对象与行对象，同时用DataSet对其值进行初始化

DataTable dt = ds.Tables[0];

DataRow[] myRow = dt.Select();//可以类似dt.Select("id>10")之形式达到数据筛选目的

int i = 0;

int cl = dt.Columns.Count;

//取得数据表各列标题，各标题之间以t分割，最后一个列标题后加回车符

for (i = 0; i < cl; i++)

{

if (i == (cl - 1))//最后一列，加n

{

colHeaders += dt.Columns[i].Caption.ToString() + "n";

}

else

{

colHeaders += dt.Columns[i].Caption.ToString() + "t";

}

}

HttpContext.Current.Response.Write(colHeaders);

//向HTTP输出流中写入取得的数据信息

//逐行处理数据

foreach (DataRow row in myRow)

{

//当前行数据写入HTTP输出流，并且置空ls_item以便下行数据

for (i = 0; i < cl; i++)

{

if (i == (cl - 1))//最后一列，加n

{

ls_item += row[i].ToString() + "n";

}

else

{

ls_item += row[i].ToString() + "t";

}

}

HttpContext.Current.Response.Write(ls_item);

ls_item = "";

}

HttpContext.Current.Response.End();

}