private void button2_Click(object sender, EventArgs e) { studentfeed sd = new studentfeed(); this.Close(); sd.Show(); }
private void button1_Click(object sender, EventArgs e) { SqlConnection s = new SqlConnection(@"Data Source=(LocalDB)\MSSQLLocalDB;AttachDbFilename=D:\c#prudhvi\prudhviraj3884\c-projects\studentfeedbacksystem\studentfeedbacksystem\Database143.mdf;Integrated Security=True"); string query = "select * from table145 where studentid='" + studentusername.Text.Trim() + "' and studentname='" + studentpassword.Text.Trim() + "'"; SqlDataAdapter sda = new SqlDataAdapter(query, s); DataTable dt1 = new DataTable(); sda.Fill(dt1); if (dt1.Rows.Count == 1) { studentfeed sd = new studentfeed(); this.Hide(); sd.Show(); } else { MessageBox.Show("invalid username or password"); } }