OleDbConnectioncon=newOleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;datasource=data.mdb");

con.Open();

OleDbCommanddc=newOleDbCommand("selectnamefromuswhereid=2",con);

textBox1.Text=dc.ExecuteScalar().ToString();

OleDbConnectioncon=newOleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;datasource=data.mdb");

con.Open();

OleDbCommanddc=newOleDbCommand("insertintous(name)values(11)",con);

dc.ExecuteNonQuery();

con.Close();

stringus=textBox2.Text;

stringpa=textBox1.Text;

OleDbConnectioncon=newOleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;datasource=data.mdb");

OleDbCommandoldC=newOleDbCommand("insertintousers(username,userpassword)values(@username,@userpassword)",con);

oldC.Parameters.Add("@username",us);

oldC.Parameters.Add("@userpassword",pa);

con.Open();

oldC.ExecuteNonQuery();

con.Close();

MessageBox.Show("Registersuccessful!");

this.Dispose();