We can use the codes below to read the sheet name mySheet in a Exel file.

string strConn = "Provider=Microsoft.Jet.Oledb.4.0;Data Source=" +
Server.MapPath("Book1.xls") + ";Extended Properties=Excel 8.0";
OleDbConnection conn = new OleDbConnection(strConn);
OleDbDataAdapter adp = new OleDbDataAdapter("Select * from
[mySheet$]",conn);
DataSet ds = new DataSet();
.....

But if we do'nt know the sheet name, but I just want read the first sheet in
the excel file.
How can I do?

Ad,

da.Fill(ds, "Sheet1");

I hope this helps,

Cor


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Thanks,
But how to modify the line below when I don't know the WhorkSheet name at
first?

OleDbDataAdapter adp = new OleDbDataAdapter("Select * from
[mySheet$]",conn);



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¤ We can use the codes below to read the sheet name mySheet in a Exel file.
¤
¤ string strConn = "Provider=Microsoft.Jet.Oledb.4.0;Data Source=" +
¤ Server.MapPath("Book1.xls") + ";Extended Properties=Excel 8.0";
¤ OleDbConnection conn = new OleDbConnection(strConn);
¤ OleDbDataAdapter adp = new OleDbDataAdapter("Select * from
¤ [mySheet$]",conn);
¤ DataSet ds = new DataSet();
¤ ....
¤
¤ But if we do'nt know the sheet name, but I just want read the first sheet in
¤ the excel file.
¤ How can I do?

There are only two ways, of which I am aware, that will enable you to retrieve an Excel Worksheet by
its ordinal position. First method is to use DAO:

Dim xlWB As DAO.Database
Dim strFirstSheetName As String

xlWB = OpenDatabase("C:\Test Files\Book10.xls", False, True, "Excel 8.0;")

strFirstSheetName = xlWB.TableDefs(0).Name

xlWB.Close

....and the other is to use automation with Microsoft Excel:

Dim obj As Excel.Application
Dim objWB As Excel.Workbook
Dim strFirstSheetName As String

obj = CreateObject("Excel.Application")
objWB = obj.Workbooks.Open("C:\Test Files\Book10.xls")

strFirstSheetName = objWB.Worksheets(1).Name

objWB.Close
objWB = Nothing
obj.Quit
obj = Nothing


Paul
~~~~
Microsoft MVP (Visual Basic)

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