private void comboBox3_SelectedIndexChanged(object sender, EventArgs e)
{
if (comboBox3.ValueMember == "ID")
{
DataTable dt = bllss4.getBatchRequired(int.Parse(comboBox3.SelectedValue.ToString()));
batch = bool.Parse(dt.Rows[0][0].ToString());
if (batch == true)
{
textBox1.Text = "True";
textBox1.Enabled = true;
}
else
{
textBox1.Text = "";
textBox1.Enabled = false;
}
}
}