private void mnuSua_Click(object sender, EventArgs e)
{
if (tvPhongHoc.SelectedNode == null)
{
return;
}
frmTuyChon frm = new frmTuyChon();
if (frm.ShowDialog() == DialogResult.OK)
{
tvPhongHoc.SelectedNode.Text = frm.txtGiaTri.Text;
}
}
private void mnuThem_Click(object sender, EventArgs e)
{
frmTuyChon frm = new frmTuyChon();
if (frm.ShowDialog() == DialogResult.OK)
{
if (tvPhongHoc.SelectedNode == null)
{
TreeNode root = new TreeNode(frm.txtGiaTri.Text);
tvPhongHoc.Nodes.Add(root);
}
else
{
TreeNode node = new TreeNode(frm.txtGiaTri.Text);
tvPhongHoc.SelectedNode.Nodes.Add(node);
}
}
}