Getting the first sheet from an Excel document regardless of sheet name with OleDb

Question

I have users that name their sheets all sorts of crazy things, but I want to be able to get the first sheet of the Excel document regardless of what it is named.

I

Answer 1

OleDbConnection oconn = new OleDbConnection(@"Provider=Microsoft.ACE.OLEDB.12.0;Data Source="Path"; Extended Properties=Excel 12.0;Persist Security Info=False;");

oconn.Open();
myCommand.Connection = oconn;
DataTable dbSchema = oconn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables,  null);
if (dbSchema == null || dbSchema.Rows.Count < 1)
{
    throw new Exception("Error: Could not determine the name of the first worksheet.");
}
string firstSheetName = dbSchema.Rows[0]["TABLE_NAME"].ToString();

Answer 2

Basically a copy of Anirudh Gaur's answer. I did some reformatting of the code and put it into a function. I added a StringBuilder so I can do more with the SELECT statement.

Upvotes go to Anirudh Gaur

Private Function Load_XLS(FileName As String) As DataTable
    Dim DataTable As New DataTable
    Dim Format As String = ""
    If IO.Path.GetExtension(FileName) = ".xls" Then
        Format = "Excel 8.0"
    ElseIf IO.Path.GetExtension(FileName) = ".xlsx" Then
        Format = "Excel 12.0"
    End If

    Using Connection As New OleDb.OleDbConnection("provider=Microsoft.Jet.OLEDB.4.0;Data Source='" & FileName & "';Extended Properties=" & Format & ";")
        Connection.Open()

        Dim TableName As String = Connection.GetSchema("Tables").Rows(0)("TABLE_NAME")

        Dim SQLCommand As New Text.StringBuilder
        SQLCommand.AppendLine("SELECT *")
        SQLCommand.AppendLine("FROM [{0}]")

        Dim Command As OleDb.OleDbDataAdapter = New OleDb.OleDbDataAdapter(String.Format(SQLCommand.ToString, TableName), Connection)

        Command.Fill(DataTable)

        Connection.Close()
    End Using
    Return DataTable
End Function

Answer 3

You can use this approach also for getting sheet name. See comments for more understanding

myExcelConn.Open()

//GET DATA FROM EXCEL SHEET.
Dim str As String = String.Empty
Dim Sheets As DataTable = myExcelConn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, Nothing)
For i As Integer = 0 To Sheets.Rows.Count - 1
    str += Sheets.Rows(i)("TABLE_NAME").ToString() + "," //It will return sheet1,sheet2,sheet3 according to my excel file
Next

Dim objOleDB As New OleDbCommand("SELECT *FROM [" + str.Split(",")(0) + "]", myExcelConn) //It will select sheet1
Me.Label1.Text = str.Split(",")(0).Replace("$", "")
// READ THE DATA EXTRACTED FROM THE EXCEL FILE.
Dim objBulkReader As OleDbDataReader
objBulkReader = objOleDB.ExecuteReader

Dim dt As DataTable = New DataTable
dt.Load(objBulkReader)

//FINALLY, BIND THE EXTRACTED DATA TO THE GRIDVIEW.
GridView1.DataSource = dt
GridView1.DataBind()
//If you want sheet2 data
 Dim objOleDB1 As New OleDbCommand("SELECT *FROM [" + str.Split(",")(1).Split(",")(0) + "]", myExcelConn)
//If you want sheet3 data
 Dim objOleDB2 As New OleDbCommand("SELECT *FROM [" + str.Split(",")(2).Split(",")(0) + "]", myExcelConn)

Answer 4

You can get sheet1 name like this and use in this manner.If you want to get other sheet names you can increase value from 0,1,2..

 Dim myExcelConn As OleDbConnection = _
                New OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" & _
                    Server.MapPath(".") & "\" & FileUpload1.FileName() & _
                    ";Extended Properties=Excel 12.0;")
    Dim Sheets As DataTable = myExcelConn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, Nothing)
                Sheet1 = Sheets.Rows(0)("TABLE_NAME").ToString()
  Dim objOleDB As New OleDbCommand("SELECT *FROM [" + Sheet1 + "]", myExcelConn)

Answer 5

This code has worked fine where i have used the data grid "DataGridView1" to load all the content of the sheet

Dim MyConnection As System.Data.OleDb.OleDbConnection
Dim DtSet As System.Data.DataSet : Dim filteext As String = ""

 ''check for the file type
 If IO.Path.GetExtension(fileName) = "xls" Then
                filteext = "Excel 8.0"
 ElseIf IO.Path.GetExtension(fileName) = ".xlsx" Then
                filteext = "Excel 12.0"
 End If

''open connection

 MyConnection = New System.Data.OleDb.OleDbConnection _
               ("provider=Microsoft.Jet.OLEDB.4.0;Data Source='" & fileName & "';Extended Properties=" & filteext & ";")
            MyConnection.Open()

  Dim myTableName = MyConnection.GetSchema("Tables").Rows(0)("TABLE_NAME")

  Dim MyCommand As OleDbDataAdapter = New OleDbDataAdapter(String.Format("SELECT * FROM [{0}]", myTableName), MyConnection)


   MyCommand.TableMappings.Add("Table", "TestTable")
            DtSet = New System.Data.DataSet

    MyCommand.Fill(DtSet)

    DataGridView1.DataSource = DtSet.Tables(0)
            'DtSet.DataSetName. 

    MyConnection.Close()

Answer 6

That's my solution

 private static string GetExcelWorkSheet(string pathToExcelFile)
        {
            Microsoft.Office.Interop.Excel.Application ExcelObj = new Microsoft.Office.Interop.Excel.Application();

            Microsoft.Office.Interop.Excel.Workbook theWorkbook = null;

            theWorkbook = ExcelObj.Workbooks.Open(pathToExcelFile);

            Microsoft.Office.Interop.Excel.Sheets sheets = theWorkbook.Worksheets;

            // Get the reference of first worksheet. Index start at 1 
            Microsoft.Office.Interop.Excel.Worksheet worksheet = (Microsoft.Office.Interop.Excel.Worksheet)sheets.get_Item(1);

            // Get the name of worksheet.
            string strWorksheetName = worksheet.Name; 

            return strWorksheetName;
        }