软件工程课程设计报告(16)

"'and " + "f_password='"+ textBox2.Text.Trim() + "'"; mycommand.Connection = myconnection;

SqlDataReader dr = mycommand.ExecuteReader(); while (dr.Read()) {

http://www.77cn.com.cnERID = dr[0].ToString(); }

if (http://www.77cn.com.cnERID != null) {

this.Close(); owner.Opacity = 1; } else {

MessageBox.Show("密码和用户输入有错误!"); } }

catch (SqlException se) {

MessageBox.Show("出现错误！" + se.Message); } }

private void button2_Click(object sender, EventArgs e) {

this.Close(); owner.Opacity = 0; }

private void label1_Click(object sender, EventArgs e) {

this.Close(); } }

}

主界面代码：

using System;

using System.Collections.Generic; using http://www.77cn.com.cnponentModel; using System.Data; using System.Drawing; using System.Text;

using System.Windows.Forms; using System.Data.SqlClient;