private void button1_Click(object sender, EventArgs e) { if (textBox1.Text.Length < 5) { MessageBox.Show("Useranme too short!"); } else { if (comboBox1.SelectedIndex == 0) { if (SQLManager.CheckSignIn(textBox1.Text, textBox2.Text, false)) { MainForm form = new MainForm(textBox1.Text, this); form.Show(); this.Hide(); } } else if (comboBox1.SelectedIndex == 1) { if (SQLManager.CheckSignIn(textBox1.Text, textBox2.Text, true)) { PublisherMainForm form = new PublisherMainForm(this, SQLManager.GetPublisherFromUsername(textBox1.Text)); form.Show(); this.Hide(); } } } }