con.Open();
OracleCommand cmd = new OracleCommand();
cmd.Connection = con;
cmd.CommandText="update ELECTRONICS_ITEMENTRY set ELECTRICTYPE='"+TextBox2.Text+"', ITEMNAME='"+TextBox3.Text+"',MODEL='"+TextBox4.Text+"' where REFERENCENO='"+TextBox1.Text+"'";
cmd.CommandType = CommandType.Text;
OracleDataReader dr = cmd.ExecuteReader();
dr.Read();
con.Close();
i written a code for update but it not working please help me to slove this.
(its working but no changes in data(when i update))
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