private void tela1ToolStripMenuItem_Click(object sender, EventArgs e)
{
Tela2 tl2 = new Tela2();
tl2.MdiParent = this;
tl2.Show();
this.toolStripStatusLabel1.Text = "Tela1";
}
private void tela2ToolStripMenuItem_Click(object sender, EventArgs e)
{
Tela2 tl2 = new Tela2();
tl2.MdiParent = this;
tl2.Show();
this.tela2ToolStripMenuItem.Text = "Tela2";
}