private void btnnew_Click(object sender, EventArgs e)
{
FormChoice fch = new FormChoice();
fch.ShowDialog();
FormDataGridChoice_Load(null, null);
}
private void btnedit_Click(object sender, EventArgs e)
{
string ed = dgvchoice[0, dgvchoice.CurrentRow.Index].Value.ToString();
Choice ch = new Choice();
ch.cid = int.Parse(ed);
DataTable dt = ch.selectone();
FormChoice fch = new FormChoice();
fch.txtcid.Text = dt.Rows[0]["cid"].ToString();
fch.txtfid.Text = dt.Rows[0]["fid"].ToString();
fch.txtnamel.Text = dt.Rows[0]["cnamelessen"].ToString();
fch.txtnamet.Text = dt.Rows[0]["cnameteacher"].ToString();
fch.txtdate.Text = dt.Rows[0]["cdate"].ToString();
fch.txtcid.ReadOnly = true;
fch.btninsert.Text = "ویرایش";
fch.ShowDialog();
FormDataGridChoice_Load(null, null);
}