private void notToolStripMenuItem_Click(object sender, EventArgs e)
{
bool durum = false;
OgrenciDers ogrenciders = new OgrenciDers();
foreach (Form form in this.MdiChildren)
{
if (form.Text == ogrenciders.Text)
{
durum = true;
form.Activate();
}
}
if (durum == false)
{
ogrenciders.MdiParent = this;
ogrenciders.Show();
}
}
private void toolStripButton1_Click(object sender, EventArgs e)
{
OgrenciDers od1 = new OgrenciDers();
od1.Show();
}