C#

      System.Data.DataTable dt = new System.Data.DataTable() ;
      for ( int col = 0 ; col < 10 ; col++ )
      {
        dt.Columns.Add ( new System.Data.DataColumn ( col.ToString() ) ) ;
      }
      for ( int row = 0 ; row < 10 ; row++ )
      {
        System.Data.DataRow dr = dt.NewRow() ;
        for ( int col = 0 ; col < dt.Columns.Count ; col++ )
        {
          dr [ col ] = row * col ;
        }
        dt.Rows.Add ( dr ) ;
      }
      this.dataGridView1.DataSource = dt ;
      for ( int row = 0 ; row < dt.Rows.Count ; row++ )
      {
        this.dataGridView1.Rows [ row ].HeaderCell.Value = row.ToString() ;
      }

mjackson11 wrote:

Is there a lot of overhead associated with these?

PIEBALDconsult wrote:

some other hand somewhere

public static FileStream TryCreateFile(string fileToCreate)
{
  string directoryName = Path.GetDirectoryName(fileToCreate);
  if (!Directory.Exists(directoryName))
    Directory.CreateDirectory(directoryName);
  return File.Create(fileToCreate);
}