using System.Windows.Forms; > >public class Test >{ > static void Main() > { > Application.Run(new MainForm()); > } >} > >class MainForm : Form >{ > public MainForm() > { > WindowState = FormWindowState.Maximized; > IsMdiContainer = true; > Form frm = new Childform(); > frm.MdiParent = this; > frm.Show(); > Form frm2 = new Childform(); > frm2.MdiParent = this; > frm2.Show(); > frm2.Left = 2000; > } >} > >class Childform : Form >{ > public Childform() > { > var grid = new DataGridView(); > grid.Columns.Add(new DataGridViewTextBoxColumn()); > grid.EditMode = DataGridViewEditMode.EditOnEnter; > Controls.Add(grid); > } >} >