private void button1_Click(object sender, EventArgs e) { string s = str; SqlConnection con = new SqlConnection(s); con.Open(); manager f1 = (manager)this.Owner; f1.Controls["textBox1"].Text = ""; if (radioButton2.Checked) { string sql = string.Format("select * from manager where id='{0}'", textBox1.Text); SqlCommand command = new SqlCommand(sql, con); SqlDataReader reader = command.ExecuteReader(); while (reader.Read()) { string id = (String)reader["id"]; string name = (String)reader["name"]; string native = (String)reader["native"]; string adress = (String)reader["adress"]; string phone = (String)reader["phone"]; string age = (String)reader["age"]; string sex = (String)reader["sex"]; string salary = (String)reader["salary"]; string date = (String)reader["date"]; string education = (String)reader["education"]; f1.Controls["textBox1"].Text += String.Format("编号:{0}\r\n姓名:{1}\r\n性别:{2}\r\n籍贯:{3}\r\n出生日期:{4}\r\n学历:{5}\r\n住址:{6}\r\n电话:{7}\r\n工龄:{8}\r\n基本工资{9}\r\n", id, name, sex, native, date, education, adress, phone, age, salary); f1.Controls["textBox1"].Text += String.Format("**************************************************************************************************\r\n"); } } else { string sql = string.Format("select * from manager where name='{0}'", textBox1.Text); SqlCommand command = new SqlCommand(sql, con); SqlDataReader reader = command.ExecuteReader(); while (reader.Read()) { string id = (String)reader["id"]; string name = (String)reader["name"]; string native = (String)reader["native"]; string adress = (String)reader["adress"]; string phone = (String)reader["phone"]; string age = (String)reader["age"]; string sex = (String)reader["sex"]; string salary = (String)reader["salary"]; string date = (String)reader["date"]; string education = (String)reader["education"]; f1.Controls["textBox1"].Text += String.Format("编号:{0}\r\n姓名:{1}\r\n性别:{2}\r\n籍贯:{3}\r\n出生日期:{4}\r\n学历:{5}\r\n住址:{6}\r\n电话:{7}\r\n工龄:{8}\r\n基本工资{9}\r\n", id, name, sex, native, date, education, adress, phone, age, salary); f1.Controls["textBox1"].Text += String.Format("**************************************************************************************************\r\n"); } } }
private void button2_Click(object sender, EventArgs e) { string s = str; SqlConnection con = new SqlConnection(s); con.Open(); manager f1 = (manager)this.Owner; f1.Controls["textBox1"].Text = ""; string sql = string.Format("select * from manager "); SqlCommand command = new SqlCommand(sql, con); SqlDataReader reader = command.ExecuteReader(); while (reader.Read()) { string id = (String)reader["id"]; string allsalary = (String)reader["allsalary"]; f1.Controls["textBox1"].Text += String.Format("编号:{0}\t 薪水:{1}\r\n", id, allsalary); } this.Close(); }
private void button1_Click(object sender, EventArgs e) { SqlConnection con = new SqlConnection(); con.ConnectionString = str; con.Open(); string userid = this.textBox1.Text; string password = this.textBox2.Text; if (radioButton2.Checked) { if (userid.Equals("") || password.Equals(""))//用户名或密码为空 { MessageBox.Show("用户名或密码不能为空"); } else//用户名或密码不为空 { string connectionString = str; SqlConnection SqlCon = new SqlConnection(connectionString); //数据库连接 SqlCon.Open(); //打开数据库 string sql = "Select * from admin where aid='" + userid + "' and apwd='" + password + "'"; //查找用户sql语句 SqlCommand cmd = new SqlCommand(sql, SqlCon); cmd.CommandType = CommandType.Text; SqlDataReader sdr; sdr = cmd.ExecuteReader(); if (sdr.Read()) //从结果中找到 { Form admin = new admin(); this.Hide(); admin.ShowDialog(); this.Close(); MessageBox.Show("登录成功", "提示"); } else { MessageBox.Show("用户名或密码错误", "提示"); return; } } } if (radioButton1.Checked) { if (userid.Equals("") || password.Equals(""))//用户名或密码为空 { MessageBox.Show("用户名或密码不能为空"); } else//用户名或密码不为空 { string connectionString = str; SqlConnection SqlCon = new SqlConnection(connectionString); //数据库连接 SqlCon.Open(); //打开数据库 string sql = "Select * from [user] where uid='" + userid + "' and upwd='" + password + "'"; //查找用户sql语句 SqlCommand cmd = new SqlCommand(sql, SqlCon); cmd.CommandType = CommandType.Text; SqlDataReader sdr; sdr = cmd.ExecuteReader(); if (sdr.Read()) //从结果中找到 { Form manager = new manager(); this.Hide(); manager.ShowDialog(); this.Close(); MessageBox.Show("登录成功", "提示"); } else { MessageBox.Show("用户名或密码错误", "提示"); return; } } } con.Close(); }