private void RefreshMainPhoneGrid()
{
Form openForm = Application.OpenForms["PhonesManage"];
PhonesManage pcForm = (PhonesManage)openForm;
pcForm.FillPhonesGrid();
}
private void telefonlarToolStripMenuItem_Click(object sender, EventArgs e)
{
PhonesManage f = new PhonesManage();
f.MdiParent = this;
f.Show();
}