private void button1_Click(object sender, EventArgs e) { { if (textBox1.Text.Trim() == "") { MessageBox.Show("Введите имя!"); } else { SqlConnection conn = new SqlConnection(Program.st_connect); conn.Open(); string s1 = "select * from Uslugi where Name_Uslugi='" + textBox1.Text.Trim() + "'"; SqlCommand comm1 = new SqlCommand(s1, conn); SqlDataReader read12 = comm1.ExecuteReader(); if (read12.HasRows) { MessageBox.Show("Логин занят!"); } else { read12.Close(); string s = "insert into Uslugi " + "" + "(Name_Uslugi) values " + "('" + textBox1.Text.Trim() + "')"; SqlCommand comm = new SqlCommand(s, conn); comm.ExecuteScalar(); conn.Close(); Form8 f = new Form8(); f.Show(); this.Close(); } } } }
private void button3_Click(object sender, EventArgs e) { Form8 f = new Form8(); f.Show(); }