private void button进入二级_Click(object sender, EventArgs e) { ziAdminForm ziadmin = new ziAdminForm(); ziadmin.Show(); //this.Hide(); }
private void btnAccess_Click(object sender, EventArgs e) { string selecString1 = "select * from 管理员信息表 where mName='" + UseText.Text + "' and mPassword='******'"; string selecString2 = "select * from 学生个人信息表 where sName='" + UseText.Text + "' and sPassword='******'"; SqlConnection conn = new SqlConnection("server=(local);database=MyBookSys;Integrated Security=SSPI"); try { conn.Open(); if (rBnadmin.Checked) { if (UseText.Text != "" && PasswordText.Text != "") { SqlCommand cmd = new SqlCommand(selecString1, conn); SqlDataReader dr1 = cmd.ExecuteReader(); if (dr1.Read()) { ziAdminForm ziadmin = new ziAdminForm(); ziadmin.Show(); // this.Hide(); } else if (UseText.Text == "admin" && int.Parse(PasswordText.Text) == 123456) { AdminForm admin = new AdminForm(); admin.Show(); // this.Hide(); } else { MessageBox.Show("用户名或密码错误!", "**警告**", MessageBoxButtons.OK, MessageBoxIcon.Error); } } else { MessageBox.Show("请输入用户名和密码!", "**警告**", MessageBoxButtons.OK, MessageBoxIcon.Error); } } else if (rBnstu.Checked) { if (UseText.Text != "" && PasswordText.Text != "") { SqlCommand cmd = new SqlCommand(selecString2, conn); SqlDataReader dr2 = cmd.ExecuteReader(); if (dr2.Read()) { StuForm stu = new StuForm(UseText.Text); stu.Show(); //this.Hide(); } else { MessageBox.Show("用户名或密码错误!", "**警告**", MessageBoxButtons.OK, MessageBoxIcon.Error); } } else { MessageBox.Show("请输入用户名和密码!", "**警告**", MessageBoxButtons.OK, MessageBoxIcon.Error); } } else { MessageBox.Show("请选择登录身份!", "**警告**", MessageBoxButtons.OK, MessageBoxIcon.Error); } } catch (SqlException ex) { MessageBox.Show(ex.ToString()); } finally { conn.Close(); } }