how to delete the row by checking values in combo box

button_Click(object sender, EventArgs e)
{
    string str = "DELETE FROM Employee WHERE EmpID = '" + int.parse(EmpIDComboBox.SelectedValue.ToString()) + "'";
    SqlCommand cmd = new SqlCommand(str, con); // con is you SqlConnection instance
    int n = cmd.ExecuteNonQuery();
    
    if(n > 0)
    MessageBox.Show("Employee removed !");
}