how implement barcode in asp.net

 private void FunctionName();          

{     

Random rnd=new Random();
int rndVal=rnd.Next();        
code39Control1.Text = "Sample" + rndVal;          
SqlConnection con=new SqlConnection([Provide Connection String]) ;
string qry="insert into....." 
SqlCommand cmd=new SqlCommand(qry,con);
cmd.Paramaneter.AddWithValue("" ,"")//provide parameteres
cmd.Paramaneter.AddWithValue("" ,"")//provide parameteres
cmd.Paramaneter.AddWithValue("" ,"")//provide parameteres
....
cmd.Paramaneter.AddWithValue("" ,"")//provide parameteres
con.Open();
cmd.ExecuteNonQuery(); 
con.Close(); 

} 

Thanks in advance 

accept my answer if its is helpful :)