Updated getting data from an Excel file in C#

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Ok I posted how to get data from an excel file a bit ago. I have some update code that reads all files into a dataset, or reads from a specific file. You could easily modify this code to read from a specific sheet as well.

public static DataSet GetAllSheetsFromExcelFile( string filename )
{
   DataSet ds;

   try
   {
      ds = new DataSet();

      DataTable dtSheets = new DataTable();

      // get a datatable with the worksheet name(s)
      OleDbConnection con = new OleDbConnection( @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + 
      filename + ";Extended Properties=Excel 8.0" );

      con.Open();

      // get a datatable of the sheetnames in this file
      DataTable dtNames = con.GetOleDbSchemaTable( System.Data.OleDb.OleDbSchemaGuid.Tables, new Object[] 
      { null, null, null, "TABLE" } );

      // add each sheet as a new table to our dataset
      foreach( DataRow row in dtNames.Rows )
      {
         DataTable dtTemp = new DataTable();

         string tableName = row["TABLE_NAME"].ToString();
                   
         OleDbDataAdapter da = new OleDbDataAdapter( "select * from [" + tableName + "]", con );
                   
         da.Fill( dtTemp );
                   
         ds.Tables.Add( dtTemp );

      }//end foreach
               
      con.Close();
               
      return ds;

   }//end try
   catch( Exception ex )
   {
      return new DataSet();
   }//end catch
}

public static DataTable GetSheetDataFromExcelFile( string filename )
{
   try
   {
      // get a datatable with the worksheet name(s)
      OleDbConnection con = new OleDbConnection( @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + 
      filename + ";Extended Properties=Excel 8.0" );

      con.Open();

      // get a datable of sheet names
      DataTable dtNames = con.GetOleDbSchemaTable( System.Data.OleDb.OleDbSchemaGuid.Tables, new Object[] 
      { null, null, null, "TABLE" } );

      DataTable dtSheets = new DataTable();

      // use the first sheet to get our data
      if( dtNames.Rows.Count > 0 )
      {
         string tableName = dtNames.Rows[0]["TABLE_NAME"].ToString();
         OleDbDataAdapter da = new OleDbDataAdapter( "select * from [" + tableName + "]", con );
         da.Fill( dtSheets );
      }

      con.Close();

      return dtSheets;

   }//end try
   catch( Exception ex )
   {
      return new DataTable();
   }//end catch
}

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