private void button3_Click(object sender, EventArgs e)
        {
            //this.Hide();
            this.Hide();
            usuarios user1 = new usuarios();

            user1.Show();
        }
        private void button3_Click(object sender, EventArgs e)
        {/*
          * string Prompt = "Ingrese Clave";
          * string Titulo = "Acceso Restringuido";
          * string texto = Microsoft.VisualBasic.Interaction.InputBox(Prompt, Titulo, "*", 150, 150);*/
            usuarios frm = new usuarios();

            frm.Show();
        }
        private void button8_Click(object sender, EventArgs e)
        {
            if (string.IsNullOrWhiteSpace(nom.Text) == true || string.IsNullOrWhiteSpace(tel.Text) == true || string.IsNullOrWhiteSpace(comboBox1.Text) == true || string.IsNullOrWhiteSpace(user.Text) == true || string.IsNullOrWhiteSpace(clave.Text) == true)
            {
                MessageBox.Show("No se permiten campos vacios");
            }

            else
            {
                string Query = "select *from USUARIO where USUARIO= '" + user.Text + "'";

                contactos cl = new contactos();
                if (cl.Buscar(Query) == true)
                {
                    MessageBox.Show("USUARIO ya existe");
                }

                else
                {
                    users  us         = new users();
                    string login_pass = clave.Text;
                    MD5    md5        = MD5.Create();
                    byte[] inputBytes = System.Text.Encoding.ASCII.GetBytes(login_pass);
                    byte[] hash       = md5.ComputeHash(inputBytes);
                    login_pass = BitConverter.ToString(hash).Replace("-", "");

                    if (comboBox1.Text == "Administrador")
                    {
                        string cadenasql = "insert  into USUARIO values ('" + nom.Text + "', '" + tel.Text + "', '" + user.Text + "', '" + login_pass + "'," + 8 + ", " + 0 + "," + 6 + ");";
                        users.insertarUser(cadenasql);
                    }
                    else
                    {
                        string cadenasql = "insert  into USUARIO values ('" + nom.Text + "', '" + tel.Text + "', '" + user.Text + "', '" + login_pass + "'," + 8 + ", " + 0 + "," + 7 + ");";
                        users.insertarUser(cadenasql);
                    }

                    //string cadenasql = "insert  into USUARIO values ('" + nom.Text + "', '" + tel.Text + "', '" + user.Text + "', '" + clave.Text + "'," + 5 + ", " + 0 + "," + comboBox1.Text + ");";


                    //users.insertarUser(cadenasql);
                    nom.Clear();
                    tel.Clear();
                    user.Clear();
                    comboBox1.Text = " ";
                    this.Hide();
                    usuarios user1 = new usuarios();
                    user1.Show();
                }
            }
        }
        private void button8_Click(object sender, EventArgs e)
        {
            users    us   = new users();
            Conexion cone = new Conexion();

            if (string.IsNullOrWhiteSpace(nom.Text) == true || string.IsNullOrWhiteSpace(comboBox1.Text) == true || string.IsNullOrWhiteSpace(user.Text) == true || string.IsNullOrWhiteSpace(clave.Text) == true || string.IsNullOrWhiteSpace(comboBox2.Text) == true)
            {
                MessageBox.Show("No se permiten campos vacios");
            }
            else
            {
                //users us = new users();
                //users us = new users();
                string login_pass = clave.Text;
                MD5    md5        = MD5.Create();
                byte[] inputBytes = System.Text.Encoding.ASCII.GetBytes(login_pass);
                byte[] hash       = md5.ComputeHash(inputBytes);
                login_pass = BitConverter.ToString(hash).Replace("-", "");


                /*if (comboBox1.Text == "Administrador")
                 *  MessageBox.Show(us.edit((Convert.ToInt32(txteid.Text)), nom.Text, user.Text, login_pass, 9, 6));
                 * else
                 *  MessageBox.Show(us.edit((Convert.ToInt32(txteid.Text)), nom.Text, user.Text, login_pass, 9, 7));*/

                /*----------------------------------------------------*/
                if (comboBox2.Text == "Activo")
                {
                    if (comboBox1.Text == "Administrador")
                    {
                        MessageBox.Show(us.edit((Convert.ToInt32(txteid.Text)), nom.Text, user.Text, login_pass, 5, 6));
                    }
                    else
                    {
                        MessageBox.Show(us.edit((Convert.ToInt32(txteid.Text)), nom.Text, user.Text, login_pass, 5, 7));
                    }
                }


                if (comboBox2.Text == "Inactivo")
                {
                    if (comboBox1.Text == "Administrador")
                    {
                        MessageBox.Show(us.edit((Convert.ToInt32(txteid.Text)), nom.Text, user.Text, login_pass, 6, 6));
                    }
                    else
                    {
                        MessageBox.Show(us.edit((Convert.ToInt32(txteid.Text)), nom.Text, user.Text, login_pass, 6, 7));
                    }
                }

                if (comboBox2.Text == "Bloqueado")
                {
                    if (comboBox1.Text == "Administrador")
                    {
                        MessageBox.Show(us.edit((Convert.ToInt32(txteid.Text)), nom.Text, user.Text, login_pass, 7, 6));
                    }
                    else
                    {
                        MessageBox.Show(us.edit((Convert.ToInt32(txteid.Text)), nom.Text, user.Text, login_pass, 7, 7));
                    }
                }

                if (comboBox2.Text == "NuevoUser")
                {
                    if (comboBox1.Text == "Administrador")
                    {
                        MessageBox.Show(us.edit((Convert.ToInt32(txteid.Text)), nom.Text, user.Text, login_pass, 8, 6));
                    }
                    else
                    {
                        MessageBox.Show(us.edit((Convert.ToInt32(txteid.Text)), nom.Text, user.Text, login_pass, 8, 7));
                    }
                }

                if (comboBox2.Text == "CambiarClave")
                {
                    if (comboBox1.Text == "Administrador")
                    {
                        MessageBox.Show(us.edit((Convert.ToInt32(txteid.Text)), nom.Text, user.Text, login_pass, 9, 6));
                    }
                    else
                    {
                        MessageBox.Show(us.edit((Convert.ToInt32(txteid.Text)), nom.Text, user.Text, login_pass, 9, 7));
                    }
                }



                /*----------------------------------------------------*/


                this.Hide();
                usuarios user1 = new usuarios();
                user1.Show();
            }
        }