public void CreateExcel(DataTable ds)
{
HttpResponse resp;
resp = Page.Response;
resp.Buffer = false;
resp.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312");
resp.ContentType = "application/octet-stream";
resp.AddHeader("Content-Disposition", "attachment;filename=" + DateTime.Now.ToString("yyyyMMdd") + ".xls");
Response.AddHeader("Content-Transfer-Encoding", "binary");
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;
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";
} }
resp.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";
} }
resp.Write(ls_item);
ls_item = ""; }
resp.Write("</head>");
resp.Flush();
resp.End();
}
这是我生成.xls的问题件 的代码 可是 我生成的 文件保存类型是 HTML 而不是XLS 而且 resp.ContentType = "application/octet-stream";这个属性已经设置了 请问 代码怎么修改?还有 这是我导入 CSV文件的代码 string strConn = "Provider=Microsoft.Jet.OLEDB.4.0;" + "@data source=" + filenameurl + ";Extended Properties='Text;HDR=YES';";
OleDbConnection conn = new OleDbConnection(strConn);
OleDbDataAdapter odda = new OleDbDataAdapter("select * from [Sheet1$]", conn);
DataSet ds = new DataSet();
odda.Fill(ds, table);
return ds;系统报错 提示 找不到可安装的 ISAM。 请问 怎么解决
当我用ODBC 数据源时string strConn = "Driver={Microsoft Text Driver (*.txt; *.csv)};@Dbq=";
strConn += FileUpload1.PostedFile.FileName.ToString(); //filePath, For example: C:注重斜杠要用双反斜杠,而且不带文件名
strConn += ";Extended Properties=asc,csv,tab,txt,xls;HDR=YES';";
OdbcConnection objConn = new OdbcConnection(strConn);
DataSet dsCSV = new DataSet();
string strSql = "select * from [Sheet2$]"; //fileName, For example: 1.csv
OdbcDataAdapter odbcCSVDataAdapter = new OdbcDataAdapter(strSql, objConn);
odbcCSVDataAdapter.Fill(dsCSV);
return dsCSV;
系统报错提示 Microsoft Jet 数据库引擎找不到对象'Sheet2$.txt' 请问查询语句 格式怎么写?
{
HttpResponse resp;
resp = Page.Response;
resp.Buffer = false;
resp.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312");
resp.ContentType = "application/octet-stream";
resp.AddHeader("Content-Disposition", "attachment;filename=" + DateTime.Now.ToString("yyyyMMdd") + ".xls");
Response.AddHeader("Content-Transfer-Encoding", "binary");
string colHeaders = "", ls_item = ""; //定义表对象与行对象,同时用DataSet对其值进行初始化
DataTable dt = ds;
DataRow[] myRow = dt.Select();//可以类似dt.Select("id>10")之形式达到数据筛选目的
int i = 0;
int cl = dt.Columns.Count; //取得数据表各列标题,各标题之间以t分割,最后一个列标题后加回车符
for (i = 0; i < cl; i++)
{
if (i == (cl - 1))//最后一列,加n
{
colHeaders += dt.Columns[i].Caption.ToString() + "\n";
}
else
{
colHeaders += dt.Columns[i].Caption.ToString() + "\t";
} }
resp.Write(colHeaders);
//向HTTP输出流中写入取得的数据信息 //逐行处理数据
foreach (DataRow row in myRow)
{
//当前行数据写入HTTP输出流,并且置空ls_item以便下行数据
for (i = 0; i < cl; i++)
{
if (i == (cl - 1))//最后一列,加n
{
ls_item += row[i].ToString() + "\n";
}
else
{
ls_item += row[i].ToString() + "\t";
} }
resp.Write(ls_item);
ls_item = ""; }
resp.Write("</head>");
resp.Flush();
resp.End();
}
这是我生成.xls的问题件 的代码 可是 我生成的 文件保存类型是 HTML 而不是XLS 而且 resp.ContentType = "application/octet-stream";这个属性已经设置了 请问 代码怎么修改?还有 这是我导入 CSV文件的代码 string strConn = "Provider=Microsoft.Jet.OLEDB.4.0;" + "@data source=" + filenameurl + ";Extended Properties='Text;HDR=YES';";
OleDbConnection conn = new OleDbConnection(strConn);
OleDbDataAdapter odda = new OleDbDataAdapter("select * from [Sheet1$]", conn);
DataSet ds = new DataSet();
odda.Fill(ds, table);
return ds;系统报错 提示 找不到可安装的 ISAM。 请问 怎么解决
当我用ODBC 数据源时string strConn = "Driver={Microsoft Text Driver (*.txt; *.csv)};@Dbq=";
strConn += FileUpload1.PostedFile.FileName.ToString(); //filePath, For example: C:注重斜杠要用双反斜杠,而且不带文件名
strConn += ";Extended Properties=asc,csv,tab,txt,xls;HDR=YES';";
OdbcConnection objConn = new OdbcConnection(strConn);
DataSet dsCSV = new DataSet();
string strSql = "select * from [Sheet2$]"; //fileName, For example: 1.csv
OdbcDataAdapter odbcCSVDataAdapter = new OdbcDataAdapter(strSql, objConn);
odbcCSVDataAdapter.Fill(dsCSV);
return dsCSV;
系统报错提示 Microsoft Jet 数据库引擎找不到对象'Sheet2$.txt' 请问查询语句 格式怎么写?
HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment;filename=Excel.xls");
HttpContext.Current.Response.Charset = Charset == "" ? "UTF-8" : Charset;
HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.Default;
HttpContext.Current.Response.ContentType = "application/ms-excel";case ".csv":
filePath = filePath.Substring(0,filePath.LastIndexOf("\\")+1);
strConn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + filePath + ";Extended Properties='Text;FMT=Delimited;HDR=YES;'";
tsql = "SELECT * FROM " + fname + extension;//XXX.csv
sdff = "Csv";
具体你可以看下我以前的帖子 我以前弄过导入导出 话说这个有控件滴..