private void button2_Click(object sender, EventArgs e) { YGuanliy yguanliy = new YGuanliy(); yguanliy.Show(); yguanliy.uname = uname; guanbi = false; this.Close(); }
private void button2_Click(object sender, EventArgs e) { if (shibie == 0) { YUser yuser = new YUser(); yuser.label2.Text = uname; yuser.Show(); guanbi = false; this.Close(); } else { YGuanliy yguanli = new YGuanliy(); yguanli.uname = uname; yguanli.Show(); guanbi = false; this.Close(); } }
private void button1_Click(object sender, EventArgs e) { if (textBox1.Text != "" && textBox2.Text != "") { try { string constr = "server=YTT-PC\\SQLEXPRESS;database=YLibrary;Integrated Security=SSPI"; SqlConnection conn = new SqlConnection(constr); int shibie = 0; if (radioButton2.Checked) { shibie = 1; } conn.Open(); string sqlStr = "select Password from YUser where Uid= '" + textBox1.Text + "'and Ushibie='" + shibie + "'"; SqlDataAdapter da = new SqlDataAdapter(sqlStr, conn); DataSet ds = new DataSet(); da.Fill(ds); DataTable dt = ds.Tables[0]; if (dt.Rows.Count == 0) { if (shibie == 0) { MessageBox.Show("该用户未注册!"); } else { MessageBox.Show("该管理员未注册!"); } } else { string mima = dt.Rows[0]["Password"].ToString(); mima = mima.Trim(); if (mima.Equals(textBox2.Text.Trim())) { MessageBox.Show("登录成功!"); conn.Close(); if (shibie == 0) { YUser yuser = new YUser(); yuser.Show(); yuser.label2.Text = textBox1.Text; guanbi = false; this.Close(); } else { YGuanliy yguanliy = new YGuanliy(); yguanliy.Show(); yguanliy.uname = textBox1.Text; guanbi = false; this.Close(); } } else { MessageBox.Show("密码错误!"); textBox1.Text = ""; textBox2.Text = ""; } } } catch (Exception err) { MessageBox.Show("连接失败"); } } else { MessageBox.Show("登录失败"); textBox1.Text = ""; textBox2.Text = ""; } }