private void toolStripMenuItem1_Click(object sender, EventArgs e)
{
if (!ExistsMdiChildrenlnstance("MainFrm"))
{
MainFrm maifrm = new MainFrm();
maifrm.MdiParent = this;
maifrm.WindowState = FormWindowState.Maximized;
maifrm.Dock = DockStyle.Fill;
maifrm.Show();
}
}
private void MDIFORM_Load(object sender, EventArgs e)
{
this.WindowState = FormWindowState.Maximized;
this.StartPosition = FormStartPosition.CenterScreen;
// this.MaximizeBox = false;
// this.MinimizeBox = false;
MainFrm maifrm = new MainFrm();
maifrm.MdiParent = this;
maifrm.WindowState = FormWindowState.Maximized;
maifrm.Dock = DockStyle.Fill;
maifrm.Show();
}