private void buttonProject_Click(object sender, EventArgs e)
{
dataGridViewList.Hide();
if (pf == null)
{
pf = new ProjectForm();
pf.MdiParent = this;
pf.FormClosed += pf_FormClosed;
pf.Show();
}
else
{
pf.Activate();
}
}
void pf_FormClosed(object sender, FormClosedEventArgs e)
{
pf = null;
//throw new NotImplementedException();
}
