Code:
x = new OracleConnection("Data Source=cstr;Persist Security info=true;user id=dispatch;password=dispatch;unicode=true");
x.Open();
string p;
string q;
string st1 = textBox3.Text + "%";
y = new OracleCommand("select CUST_CODE from CUST_ADD where substr(CUST_NAME,0,1) like '" + st1 + "'", x);
q = y.CommandText;
z = y.ExecuteReader();
int r;
y = new OracleCommand("select NVL(MAX(to_number(substr(CUST_CODE,2,3))),0)+1 from CUST_ADD where substr(CUST_CODE,0,1) like '" + st1 + "'", x);
r = y.GetHashCode();
z = y.ExecuteReader();
if (z.HasRows)
{
if (z.Read())
{
if (r <= 9)
{
p = q + "00" + r ;
textBox1.Text = p;
textBox1.Text = z[0].ToString();
}
else if (r <= 99)
{
p = q + "0" + r;
textBox1.Text = p;
textBox1.Text = z[0].ToString();
}
else
{
p = q + r;
textBox1.Text = p;
textBox1.Text = z[0].ToString();
}
}
}
//z.Dispose();
y.Dispose();
x.Close();
PLZ SEE THIS CODE AND IF ANY ERROR THAN PLEASE HELP ME
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