private void button2_Click(object sender, EventArgs e)
{
this.Hide();
creditorfm crefm = new creditorfm();
crefm.ShowDialog();
}
private void aDDToolStripMenuItem1_Click(object sender, EventArgs e)
{
this.Hide();
creditorfm credfm = new creditorfm();
//credfm.MdiParent = this;
credfm.Show();
}