Question

I need to import data from Excel to Sql Server using ASP.NET. How can I do this?

Answer 1

You can use ADO.net OLEDB data source. You can fetch records as you normally do for MS Access.
Have a look at the example..

public static DataTable SelectAll()
{
    string conString = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + path + @"\YourExcellfile.xls;Extended Properties=""Excel 8.0;HDR=Yes"";";
    OleDbConnection oleConnection = new OleDbConnection(conString);

    OleDbCommand oleCommand = new OleDbCommand("select * from [YourSheet1$]", oleConnection);
    OleDbDataAdapter adapter = new OleDbDataAdapter(oleCommand);

    oleConnection.Open();

    DataTable dt = new DataTable();
    adapter.Fill(dt);

    oleConnection.Close();

    return dt;
}

After the import you can pick the data from the data table and perform the insert operation using ADO.net Sql operation