Excel File Processing

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I have some code here and it is stumping me. I have an Excel file that I am trying to process, when I try to access a column in a row I don't get any data. Any help would be appreciated:

MSIL

try
           {
               OleDbConnection ExcelConnection = new OleDbConnection("provider=Microsoft.Jet.OLEDB.4.0;Data Source='" + txtFileName.Text + "'" + ";Extended Properties=Excel 8.0;");
               OleDbDataAdapter ExcelCommand = new OleDbDataAdapter("select * from [Contacts$]", ExcelConnection);
               ExcelCommand.Fill(dtExcel, "Excel");
               ExcelConnection.Close();
               if (ValidRec()) CrtNwRecords();
               else MessageBox.Show("Errors Exist in Spreadsheet");
           }
           catch(Exception ex)
           {
               MessageBox.Show(ex.ToString());
           }
       }
       private bool ValidRec()
       {
           for (int x = 0; x < dtExcel.Tables[0].Rows.Count; x++)
           {
               if (dtExcel.Tables[0].Rows[x][0].ToString() == "") MessageBox.Show(dtExcel.Tables[0].Rows[x][0].ToString()); //First Name
           }
           return true;
       }

Posted 18-Aug-10 16:05pm

kruegersck

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Thomas Krojer · Accepted Answer · 2010-08-18T23:43:00

This worked for me:

C#

OleDbConnection ExcelConnection = new OleDbConnection(@"provider=Microsoft.Jet.OLEDB.4.0;Data Source='c:\temp\excel_data_file.xls';Extended Properties=Excel 8.0;");
OleDbDataAdapter ExcelCommand = new OleDbDataAdapter("select * from [Tabelle1$]", ExcelConnection);
DataTable dtExcel = new DataTable("is_wuascht");
ExcelCommand.Fill(dtExcel);

Console.WriteLine("list of column names");
Console.WriteLine("column name: " + dtExcel.Columns[0].ColumnName);
Console.WriteLine("column name: " + dtExcel.Columns[1].ColumnName);

Console.WriteLine("row data"); 
foreach (DataRow dr in dtExcel.Rows)
{
   Console.WriteLine("Row: " + dr[0].ToString() + ":" + dr[1].ToString());
}