修改程序登录入口，管理员操作
一：经过两天的努力，今天终于解决了一系列让我头疼的问题，这些问题可很简单，写下来记住吧，解决方案资源管理器截图如下：
二：登录入口选择的代码，program.cs
using System; using System.Collections.Generic; using System.Linq; using System.Windows.Forms; namespace HYMSys.UI { static class Program { /// <summary> /// 应用程序的主入口点。 /// </summary> [STAThread] static void Main() { Application.EnableVisualStyles(); Application.SetCompatibleTextRenderingDefault(false); login login = new login(); login.ShowDialog(); if (login.DialogResult == DialogResult.OK)//对话框的返回值为ok时运行HRMSys窗口 { Application.Run(new HRMSys()); } //Application.Run(new login()); } } }
登录的优化操作：
1.login窗口的AccoptButton属性为登录按钮，CancleButton为关闭按钮，这样回车直接登录了和用Esc键直接关闭
2.login窗口的MaximizeBox属性为：False
3.login窗口的StartPosition属性为：CenterScreen
三：OperatorListUI.cs代码，将管理员全部显示出来
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using HRMSys.DAL; using HRMSys.Model; namespace HYMSys.UI.SystemMgr { public partial class OperatorLisrUI : Form { public OperatorLisrUI() { InitializeComponent(); } OperatorEditUI edit = new OperatorEditUI(); /// <summary> /// 刷新数据 /// </summary> private void loadSource() { OperatorDAL ope = new OperatorDAL(); dataGridView1.DataSource =ope.GetListNotDelete();//dataGridView1.DataSource可以直接接收一个object数组 } /// <summary> ///窗口启动自动加载数据没有被软删除的数据 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void OperatorLisrUI_Load(object sender, EventArgs e) { loadSource(); } /// <summary> /// 添加管理员 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void tsb_add_Click(object sender, EventArgs e) { edit.IsInsert = true;//不同窗口间传参数; edit.ShowDialog(); if (edit.loadSouce == true) { loadSource(); } } /// <summary> /// 删除 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void tsb_delete_Click(object sender, EventArgs e) { OperatorDAL dal = new OperatorDAL(); edit.EditingId = (Guid)dataGridView1.CurrentRow.Cells[0].Value;//取得id的值 string name= (string)dataGridView1.CurrentRow.Cells[1].Value; if (MessageBox.Show("真的要删除--"+name+"--吗?", "警告", MessageBoxButtons.OKCancel) == DialogResult.OK) { dal.softDelete(edit.EditingId); edit.loadSouce = true; } if (edit.loadSouce == true) { loadSource(); } } /// <summary> /// 编辑 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void tsb_edit_Click(object sender, EventArgs e) { edit.IsInsert = false;//不同窗口间传参数; //edit.EditingId = dataGridView1.Rows[2].Cells[].Value; edit.EditingId = (Guid)dataGridView1.CurrentRow.Cells[0].Value;//取得id的值 edit.ShowDialog(); if(edit.loadSouce==true) { loadSource(); } } } }
此过程中遇到的问题：
1.如何将datagridview中显示的是文字，而不是数据源的字段，只显示其中的三个字段，得到选中行的某单元格的内容如图：
a.将datagridview列的属性HeaderText设置为显示的文字，DataPropertyName设置为数据源对应的字段名，这就实现了如图用户名下显示的数据源的UserName字段，如图操作：
b.将数据源的所有字段都添加到datagridview列属性中，这样就不会出现自动添加以数据源字段为列属性了，将不用的列属性隐藏即可
c.dataGridView1.CurrentRow.Cells[0].Value;//得到当前选中行的第一列单元格的内容
三：OperatorDAL.cs的代码
using System; using System.Collections.Generic; using System.Linq; using System.Text; using HRMSys.Model; using System.Data.SqlClient; using System.Data; namespace HRMSys.DAL { public class OperatorDAL { /// <summary> /// 插入一个用户 /// </summary> /// <param name="op"></param> public void insertUser(Operator op) { sqlhelper.ExecuteNon(@"insert into T_Operator (Id,UserName,Password,IsLocked,IsDelete,RealName) values (newid(),@UserName,@Password,0,0,@RealName)", new SqlParameter ("@UserName",op.UserName), new SqlParameter ("@Password",op.Password), new SqlParameter("@RealName",op.RealName)); } /// <summary> /// 查询是否存在用户名 /// </summary> /// <param name="name"></param> /// <returns></returns> public bool checkNameRepeat(string name) { DataTable table = sqlhelper.datatable("select * from T_Operator where UserName=@UserName", new SqlParameter("@UserName", name)); if (table.Rows.Count <= 0) return true;//不存在 else return false;//已存在 } /// <summary> /// 将表的形式转换为vs的形式,给对象 /// </summary> /// <param name="row"></param> /// <returns></returns> private Operator ToOperator(DataRow row) { Operator op = new Operator(); op.Id = (Guid)row["Id"];//不加就可以检查用户名是否重复了 op.UserName = (string)row["UserName"]; op.Password = (string)row["Password"]; op.IsLocked = (bool)row["IsLocked"]; op.IsDelete=(bool)row["IsDelete"]; op.RealName = (string)row["RealName"]; return op; } /// <summary> ///查询指定username的一条数据 /// </summary> /// <param name="name"></param> /// <returns></returns> public Operator loginUser(string name) { DataTable table = sqlhelper.datatable("select * from T_Operator where UserName=@UserName and IsDelete=0 and IsLocked=0", new SqlParameter("@UserName", name)); if (table.Rows.Count <= 0) return null; else if (table.Rows.Count > 1) throw new Exception("用户名重复"); else { DataRow row = table.Rows[0]; return ToOperator(row); } } /// <summary> /// 锁定管理员更新管理员表 /// </summary> /// <param name="op"></param> public void UpdateOperator(Operator op) { sqlhelper.ExecuteNon("update T_Operator set IsLocked=@IsLocked where Id=@Id", new SqlParameter("@IsLocked", op.IsLocked), new SqlParameter("@id",op.Id)); } /// <summary> /// 根据id软删除一条数据 /// </summary> /// <param name="id"></param> public void softDelete(Guid id) { sqlhelper.ExecuteNon("update T_Operator set IsDelete=1 where Id=@Id", new SqlParameter("@Id",id)); } /// <summary> /// 得到没有软删除的所有数据 /// </summary> /// <returns></returns> public Operator[] GetListNotDelete() { DataTable listOp=sqlhelper.datatable("select * from T_Operator where IsDelete=0"); Operator[] op = new Operator[listOp.Rows.Count]; for (int i = 0; i < listOp.Rows.Count; i++) { op[i] = ToOperator(listOp.Rows[i]); } return op; } //得到指定Id的一条数据 public Operator GetOpById(Guid id) { DataTable table = new DataTable(); table= sqlhelper.datatable("select * from T_Operator where Id=@Id", new SqlParameter("@Id",id)); if (table.Rows.Count <= 0) return null; else if (table.Rows.Count > 1) throw new Exception("ID重复"); else { return ToOperator(table.Rows[0]); } } //更新一条数据 public void updateTwoByid(string username,string realname,Guid id) {//两个set间要有逗号UserName=@UserName ,RealName=@RealName sqlhelper.ExecuteNon("update T_Operator set UserName=@UserName ,RealName=@RealName where Id=@Id", new SqlParameter("@UserName",username), new SqlParameter("@RealName",realname), new SqlParameter("@Id",id)); } public void updateThreeByid(string username, string realname,string password,Guid id) { sqlhelper.ExecuteNon("update T_Operator set UserName=@UserName, RealName=@RealName,Password=@Password where Id=id", new SqlParameter("@UserName", username), new SqlParameter("@RealName", realname), new SqlParameter("@Password",password) ); } } }
四：CommonHelper.cs和App.config的代码，将密码盐放到App.config中，CommonHelper.cs取到密码盐
CommonHelper.cs代码：
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Security.Cryptography; using System.Configuration; namespace HYMSys.UI { class CommonHelper { /// <summary> /// MD5加密算法,将添加的用户名和密码加密 /// </summary> /// <param name="sDataIn"></param> /// <returns></returns> public static string GetMD5(string sDataIn) { MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider(); byte[] bytValue, bytHash; bytValue = System.Text.Encoding.UTF8.GetBytes(sDataIn); bytHash = md5.ComputeHash(bytValue); md5.Clear(); string sTemp = ""; for (int i = 0; i < bytHash.Length; i++) { sTemp += bytHash[i].ToString("X").PadLeft(2, '0'); } return sTemp.ToLower(); } /// <summary> /// 取得密码盐 /// </summary> /// <returns></returns> public static string getPasswordSalt() { string passwordSalt = ConfigurationManager.AppSettings["PasswodSalt"]; return passwordSalt; } } }
App.config的代码：
<?xml version="1.0" encoding="utf-8" ?> <configuration> <connectionStrings> <add name="constr" connectionString="server=.;database=HRMSysDB;uid=hrmsa;pwd=love@zhengzhou"/> </connectionStrings> <appSettings> <add key="PasswodSalt" value="Love@.>1"/> </appSettings> </configuration>
五：OperatorEditUI.cs代码
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using HRMSys.Model; using HRMSys.DAL; namespace HYMSys.UI.SystemMgr { public partial class OperatorEditUI : Form { public OperatorEditUI() { InitializeComponent(); } public bool IsInsert { get; set; }//是否插入 public Guid EditingId { get; set; }//列表窗口的id,也是表的id public bool loadSouce { get; set; }//用来让编辑窗口关闭后刷新列表窗口 /// <summary> /// 保存修改或插入 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btn_save_Click(object sender, EventArgs e) { if (IsInsert) { Operator opp = new Operator(); OperatorDAL op = new OperatorDAL(); opp.Password = CommonHelper.GetMD5(tb_password.Text + CommonHelper.getPasswordSalt()); opp.UserName = tb_username.Text; opp.RealName = tb_realname.Text; op.insertUser(opp); MessageBox.Show("添加成功"); } else { if (tb_password.Text.Length <= 0) { OperatorDAL op = new OperatorDAL(); op.updateTwoByid(tb_username.Text, tb_realname.Text, EditingId); MessageBox.Show("更改成功"); } else { string password = tb_password.Text; password = CommonHelper.GetMD5(password + CommonHelper.getPasswordSalt()); OperatorDAL op = new OperatorDAL(); op.updateThreeByid(tb_username.Text, tb_realname.Text, password, EditingId); MessageBox.Show("更改成功"); } } } /// <summary> /// 自动载入指定id数据 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void OperatorEditUI_Load(object sender, EventArgs e) { if (IsInsert) { } else { OperatorDAL opda = new OperatorDAL(); Operator op = new Operator(); op = opda.GetOpById(EditingId); tb_username.Text = op.UserName; tb_realname.Text = op.RealName; } } /// <summary> /// 窗口关闭,将datagridview重新载入数据 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void OperatorEditUI_FormClosing(object sender, FormClosingEventArgs e) { loadSouce = true; } /// <summary> /// 取消时关闭窗口 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btn_cancle_Click(object sender, EventArgs e) { loadSouce = false; this.Close(); } } }
六：更改应用程序的图标，在主程序上右键单击属性，得到如图界面，更改即可：
