FUNCTION FOR INSERTING DATA IN C# VB.NET

FUNCTION FOR INSERTING DATA IN C# VB.NET
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using System.Data.SqlClient;// NAME SPACE FOR SQL CONNECTION
using System.Collections;
namespace WindowsApplication1
{

class Myclass
{
SqlConnection con = new SqlConnection("server=.;trusted_connection=true;database=RVDTEST");// CONNECTION STRING

public void save(string sav)// FUNCTION FOR INSERTING/UPDATING/DELETING DATA
{
con.Open();
SqlCommand cmd = new SqlCommand(sav, con);
cmd.ExecuteNonQuery();
con.Close();
}
}
}
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