##三层架构的补充
1. Form1.cs (主窗体完整代码)
csharp
using BusinessLogicLayer;
using Common;
using System;
using System.Collections.Generic;
using System.Data;
using System.Drawing;
using System.Windows.Forms;
namespace PresentationLayer
{
public partial class Form1 : Form
{
// 业务逻辑层服务对象
private readonly PaginationService _paginationService;
private readonly EmployeeService _employeeService;
private readonly DepartmentService _departmentService;
private readonly LoginService _loginService;
private readonly ExportService _exportService;
// 界面状态变量
private DataTable _departmentTable;
private DataGridViewRow _selectedRow;
private bool _isLoggedIn = false;
// 分页相关字段
private int _currentPage = 1;
private int _totalRecords = 0;
private int _totalPages = 0;
private bool _searchMode = false;
private string _searchConditions = "";
private readonly string _orderByColumn = AppSettings.DefaultOrderByColumn;
// 下拉框数据源
private readonly List<int> _ageList = new List<int>();
// 界面控件
private DataGridView dgvEmployee;
private GroupBox gbEmployeeInfo;
private TextBox txtPageNumber;
private TextBox txtPageInput;
private Button btnGoToPage;
private Button btnFirstPage;
private Button btnPreviousPage;
private Button btnNextPage;
private Button btnLastPage;
private Button btnSearch;
private Button btnAddEmployee;
private Button btnAddDepartment;
private Button btnExport;
private Button btnRefresh;
private Button btnLogin;
private Button btnExit;
private TextBox txtUsername;
private TextBox txtPassword;
private CheckBox chkRemember;
private ComboBox cmbEmployeeName;
private ComboBox cmbDepartment;
private ComboBox cmbManager;
private Label lblPageInfo;
private Panel pnlLogin;
private Panel pnlSearch;
private Panel pnlMain;
private Panel pnlPagination;
private Panel pnlButtons;
public Form1()
{
InitializeComponent();
InitializeServices();
InitializeUI();
LoadRememberedPassword();
}
#region 初始化和配置
/// <summary>
/// 初始化业务逻辑层服务
/// </summary>
private void InitializeServices()
{
_paginationService = new PaginationService(AppSettings.ConnectionString, AppSettings.PageSize);
_employeeService = new EmployeeService(AppSettings.ConnectionString);
_departmentService = new DepartmentService(AppSettings.ConnectionString);
_loginService = new LoginService(AppSettings.ConnectionString);
_exportService = new ExportService(AppSettings.ConnectionString);
}
/// <summary>
/// 初始化用户界面
/// </summary>
private void InitializeUI()
{
// 窗体基本设置
this.Text = "员工部门管理系统";
this.Size = new Size(1200, 800);
this.StartPosition = FormStartPosition.CenterScreen;
this.FormBorderStyle = FormBorderStyle.FixedSingle;
this.MaximizeBox = false;
// 初始化列表
InitAgeList();
// 创建界面布局
CreateLayout();
// 初始化控件
InitializeDataGridView();
InitializeEmployeeInfoPanel();
InitializePaginationControls();
InitializeSearchControls();
// 隐藏数据直到登录
HideAllData();
}
/// <summary>
/// 创建界面布局
/// </summary>
private void CreateLayout()
{
// 登录面板 (顶部)
pnlLogin = new Panel
{
Location = new Point(10, 10),
Size = new Size(1150, 80),
BorderStyle = BorderStyle.FixedSingle
};
this.Controls.Add(pnlLogin);
// 搜索面板 (登录面板下方)
pnlSearch = new Panel
{
Location = new Point(10, 100),
Size = new Size(1150, 70),
BorderStyle = BorderStyle.FixedSingle
};
this.Controls.Add(pnlSearch);
// 主面板 (包含数据表格和员工信息)
pnlMain = new Panel
{
Location = new Point(10, 180),
Size = new Size(1150, 400)
};
this.Controls.Add(pnlMain);
// 分页面板 (主面板下方)
pnlPagination = new Panel
{
Location = new Point(10, 590),
Size = new Size(1150, 50),
BorderStyle = BorderStyle.FixedSingle
};
this.Controls.Add(pnlPagination);
// 按钮面板 (底部)
pnlButtons = new Panel
{
Location = new Point(10, 650),
Size = new Size(1150, 100),
BorderStyle = BorderStyle.FixedSingle
};
this.Controls.Add(pnlButtons);
}
/// <summary>
/// 初始化DataGridView
/// </summary>
private void InitializeDataGridView()
{
dgvEmployee = new DataGridView
{
Location = new Point(10, 10),
Size = new Size(700, 380),
AllowUserToAddRows = false,
AllowUserToDeleteRows = false,
AllowUserToOrderColumns = false,
ReadOnly = true,
MultiSelect = false,
SelectionMode = DataGridViewSelectionMode.FullRowSelect,
RowHeadersVisible = false,
AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill,
ScrollBars = ScrollBars.Vertical,
BorderStyle = BorderStyle.FixedSingle
};
// 添加列
CreateDataGridViewColumns();
pnlMain.Controls.Add(dgvEmployee);
// 绑定事件
dgvEmployee.SelectionChanged += OnRowSelectedShowText;
dgvEmployee.MouseDown += OnDataGridViewMouseDown;
}
/// <summary>
/// 创建DataGridView列
/// </summary>
private void CreateDataGridViewColumns()
{
dgvEmployee.Columns.Clear();
string[] columns = {
"员工ID", "员工姓名", "员工性别", "员工年龄",
"所属部门", "入职时间", "员工密码", "部门负责人", "部门密码"
};
string[] properties = {
"员工ID", "员工姓名", "员工性别", "员工年龄",
"所属部门", "入职时间", "员工密码", "部门负责人", "部门密码"
};
int[] widths = { 80, 120, 70, 70, 150, 100, 100, 120, 100 };
for (int i = 0; i < columns.Length; i++)
{
var column = new DataGridViewTextBoxColumn
{
HeaderText = columns[i],
DataPropertyName = properties[i],
Name = properties[i],
Width = widths[i],
ReadOnly = true
};
if (properties[i] == "入职时间")
{
column.DefaultCellStyle.Format = "yyyy-MM-dd";
}
dgvEmployee.Columns.Add(column);
}
}
/// <summary>
/// 初始化员工信息面板
/// </summary>
private void InitializeEmployeeInfoPanel()
{
gbEmployeeInfo = new GroupBox
{
Text = "员工信息详情",
Location = new Point(720, 10),
Size = new Size(420, 380),
Font = new Font("微软雅黑", 10, FontStyle.Bold)
};
CreateEmployeeInfoControls();
pnlMain.Controls.Add(gbEmployeeInfo);
}
/// <summary>
/// 创建员工信息显示控件
/// </summary>
private void CreateEmployeeInfoControls()
{
string[] labels = {
"员工ID：", "员工姓名：", "员工性别：", "员工年龄：",
"所属部门：", "入职时间：", "员工密码：", "部门负责人：", "部门密码："
};
int startY = 30;
int labelWidth = 100;
int valueWidth = 280;
int rowHeight = 35;
for (int i = 0; i < labels.Length; i++)
{
// 标签
Label lbl = new Label
{
Text = labels[i],
Location = new Point(20, startY + i * rowHeight),
Size = new Size(labelWidth, 25),
TextAlign = ContentAlignment.MiddleRight,
Font = new Font("微软雅黑", 9, FontStyle.Bold)
};
// 值显示标签
Label lblValue = new Label
{
Name = "lbl" + labels[i].Replace("：", ""),
Location = new Point(labelWidth + 25, startY + i * rowHeight),
Size = new Size(valueWidth, 25),
BorderStyle = BorderStyle.FixedSingle,
TextAlign = ContentAlignment.MiddleLeft,
Font = new Font("微软雅黑", 9)
};
gbEmployeeInfo.Controls.Add(lbl);
gbEmployeeInfo.Controls.Add(lblValue);
}
}
/// <summary>
/// 初始化分页控件
/// </summary>
private void InitializePaginationControls()
{
// 分页信息标签
lblPageInfo = new Label
{
Location = new Point(10, 15),
Size = new Size(300, 20),
Text = "第 0-0 条，共 0 条",
ForeColor = Color.Blue,
Font = new Font("微软雅黑", 9)
};
pnlPagination.Controls.Add(lblPageInfo);
// 首页按钮
btnFirstPage = new Button
{
Text = "首页",
Location = new Point(320, 10),
Size = new Size(60, 30),
Enabled = false
};
btnFirstPage.Click += BtnFirstPage_Click;
pnlPagination.Controls.Add(btnFirstPage);
// 上一页按钮
btnPreviousPage = new Button
{
Text = "上一页",
Location = new Point(390, 10),
Size = new Size(60, 30),
Enabled = false
};
btnPreviousPage.Click += BtnPreviousPage_Click;
pnlPagination.Controls.Add(btnPreviousPage);
// 页码输入
txtPageNumber = new TextBox
{
Location = new Point(460, 10),
Size = new Size(50, 30),
Text = "1",
TextAlign = HorizontalAlignment.Center
};
pnlPagination.Controls.Add(txtPageNumber);
// 跳转按钮
btnGoToPage = new Button
{
Text = "跳转",
Location = new Point(520, 10),
Size = new Size(60, 30)
};
btnGoToPage.Click += BtnGoToPage_Click;
pnlPagination.Controls.Add(btnGoToPage);
// 下一页按钮
btnNextPage = new Button
{
Text = "下一页",
Location = new Point(590, 10),
Size = new Size(60, 30),
Enabled = false
};
btnNextPage.Click += BtnNextPage_Click;
pnlPagination.Controls.Add(btnNextPage);
// 末页按钮
btnLastPage = new Button
{
Text = "末页",
Location = new Point(660, 10),
Size = new Size(60, 30),
Enabled = false
};
btnLastPage.Click += BtnLastPage_Click;
pnlPagination.Controls.Add(btnLastPage);
}
/// <summary>
/// 初始化搜索控件
/// </summary>
private void InitializeSearchControls()
{
// 员工姓名搜索
Label lblEmpName = new Label
{
Text = "员工姓名：",
Location = new Point(20, 20),
Size = new Size(80, 25)
};
pnlSearch.Controls.Add(lblEmpName);
cmbEmployeeName = new ComboBox
{
Location = new Point(100, 20),
Size = new Size(150, 25),
DropDownStyle = ComboBoxStyle.DropDown
};
pnlSearch.Controls.Add(cmbEmployeeName);
// 部门名称搜索
Label lblDepartment = new Label
{
Text = "所属部门：",
Location = new Point(270, 20),
Size = new Size(80, 25)
};
pnlSearch.Controls.Add(lblDepartment);
cmbDepartment = new ComboBox
{
Location = new Point(350, 20),
Size = new Size(150, 25),
DropDownStyle = ComboBoxStyle.DropDown
};
pnlSearch.Controls.Add(cmbDepartment);
// 部门负责人搜索
Label lblManager = new Label
{
Text = "部门负责人：",
Location = new Point(520, 20),
Size = new Size(80, 25)
};
pnlSearch.Controls.Add(lblManager);
cmbManager = new ComboBox
{
Location = new Point(600, 20),
Size = new Size(150, 25),
DropDownStyle = ComboBoxStyle.DropDown
};
pnlSearch.Controls.Add(cmbManager);
// 搜索按钮
btnSearch = new Button
{
Text = "搜索",
Location = new Point(770, 20),
Size = new Size(80, 25),
BackColor = Color.LightGreen
};
btnSearch.Click += BtnSearch_Click;
pnlSearch.Controls.Add(btnSearch);
}
/// <summary>
/// 初始化按钮区域
/// </summary>
private void CreateButtonSection()
{
// 新增员工按钮
btnAddEmployee = new Button
{
Text = "新增员工",
Location = new Point(20, 30),
Size = new Size(100, 40),
BackColor = Color.LightSkyBlue
};
btnAddEmployee.Click += BtnAddEmployee_Click;
pnlButtons.Controls.Add(btnAddEmployee);
// 新增部门按钮
btnAddDepartment = new Button
{
Text = "新增部门",
Location = new Point(140, 30),
Size = new Size(100, 40),
BackColor = Color.LightSkyBlue
};
btnAddDepartment.Click += BtnAddDepartment_Click;
pnlButtons.Controls.Add(btnAddDepartment);
// 刷新按钮
btnRefresh = new Button
{
Text = "刷新",
Location = new Point(260, 30),
Size = new Size(100, 40)
};
btnRefresh.Click += BtnRefresh_Click;
pnlButtons.Controls.Add(btnRefresh);
// 导出按钮
btnExport = new Button
{
Text = "导出Excel",
Location = new Point(380, 30),
Size = new Size(100, 40),
BackColor = Color.LightGoldenrodYellow
};
btnExport.Click += BtnExport_Click;
pnlButtons.Controls.Add(btnExport);
// 退出按钮
btnExit = new Button
{
Text = "退出系统",
Location = new Point(500, 30),
Size = new Size(100, 40),
BackColor = Color.LightCoral
};
btnExit.Click += BtnExit_Click;
pnlButtons.Controls.Add(btnExit);
}
/// <summary>
/// 初始化年龄列表
/// </summary>
private void InitAgeList()
{
_ageList.Clear();
for (int i = Constants.MinAge; i <= Constants.MaxAge; i++)
_ageList.Add(i);
}
#endregion
#region 登录功能
/// <summary>
/// 创建登录界面
/// </summary>
private void CreateLoginControls()
{
// 用户名
Label lblUsername = new Label
{
Text = "用户名：",
Location = new Point(20, 25),
Size = new Size(70, 25)
};
pnlLogin.Controls.Add(lblUsername);
txtUsername = new TextBox
{
Location = new Point(95, 25),
Size = new Size(150, 25),
Text = "admin"
};
pnlLogin.Controls.Add(txtUsername);
// 密码
Label lblPassword = new Label
{
Text = "密码：",
Location = new Point(270, 25),
Size = new Size(70, 25)
};
pnlLogin.Controls.Add(lblPassword);
txtPassword = new TextBox
{
Location = new Point(345, 25),
Size = new Size(150, 25),
PasswordChar = '*'
};
pnlLogin.Controls.Add(txtPassword);
// 记住密码
chkRemember = new CheckBox
{
Text = "记住密码",
Location = new Point(510, 25),
Size = new Size(100, 25),
Checked = true
};
pnlLogin.Controls.Add(chkRemember);
// 登录按钮
btnLogin = new Button
{
Text = "登录",
Location = new Point(620, 20),
Size = new Size(100, 35),
BackColor = Color.LightGreen,
Font = new Font("微软雅黑", 10, FontStyle.Bold)
};
btnLogin.Click += BtnLogin_Click;
pnlLogin.Controls.Add(btnLogin);
}
/// <summary>
/// 登录按钮点击事件
/// </summary>
private async void BtnLogin_Click(object sender, EventArgs e)
{
string account = txtUsername.Text.Trim();
string password = txtPassword.Text.Trim();
if (string.IsNullOrEmpty(account))
{
MessageBox.Show("请输入用户名！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
txtUsername.Focus();
return;
}
if (string.IsNullOrEmpty(password))
{
MessageBox.Show("请输入密码！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
txtPassword.Focus();
return;
}
try
{
Cursor = Cursors.WaitCursor;
bool isValid = await _loginService.ValidateLoginAsync(account, password);
if (isValid)
{
LoginSuccess(account, password);
}
else
{
MessageBox.Show("用户名或密码错误！", "登录失败", MessageBoxButtons.OK, MessageBoxIcon.Error);
txtPassword.Text = "";
txtPassword.Focus();
}
}
catch (Exception ex)
{
MessageBox.Show($"登录失败：{ex.Message}", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
finally
{
Cursor = Cursors.Default;
}
}
/// <summary>
/// 登录成功处理
/// </summary>
private void LoginSuccess(string account, string password)
{
MessageBox.Show("登录成功！", "成功", MessageBoxButtons.OK, MessageBoxIcon.Information);
// 保存记住的密码
SaveRememberedPassword(account, password);
// 设置登录状态
_isLoggedIn = true;
// 禁用登录相关控件
txtUsername.Enabled = false;
txtPassword.Enabled = false;
btnLogin.Enabled = false;
// 显示数据
ShowAllData();
}
/// <summary>
/// 加载记住的密码
/// </summary>
private void LoadRememberedPassword()
{
try
{
// 这里需要添加实际的密码加载逻辑
// 可以使用配置文件或数据库存储记住的密码
if (chkRemember != null && chkRemember.Checked)
{
// 示例：从设置中加载
txtUsername.Text = Properties.Settings.Default.LastUsername ?? "admin";
txtPassword.Text = Properties.Settings.Default.LastPassword ?? "";
}
}
catch
{
// 忽略加载错误
}
}
/// <summary>
/// 保存记住的密码
/// </summary>
private void SaveRememberedPassword(string account, string password)
{
try
{
if (chkRemember.Checked)
{
Properties.Settings.Default.LastUsername = account;
Properties.Settings.Default.LastPassword = password;
Properties.Settings.Default.Save();
}
}
catch
{
// 忽略保存错误
}
}
#endregion
#region 数据加载和显示
/// <summary>
/// 显示所有数据
/// </summary>
private async void ShowAllData()
{
try
{
Cursor = Cursors.WaitCursor;
await LoadFirstPage();
await InitializeSearchDropdowns();
}
catch (Exception ex)
{
MessageBox.Show($"加载数据失败：{ex.Message}", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
finally
{
Cursor = Cursors.Default;
}
}
/// <summary>
/// 加载第一页数据
/// </summary>
private async Task LoadFirstPage()
{
_currentPage = 1;
_searchMode = false;
_searchConditions = "";
await LoadPageData();
}
/// <summary>
/// 加载当前页数据
/// </summary>
private async Task LoadPageData()
{
try
{
var result = await _paginationService.GetPagedDataAsync(
_searchConditions, _orderByColumn, _currentPage);
dgvEmployee.DataSource = result.DataTable;
_totalRecords = result.TotalRecords;
_totalPages = result.TotalPages;
UpdatePaginationInfo(result);
if (dgvEmployee.Rows.Count > 0)
{
dgvEmployee.Rows[0].Selected = true;
OnRowSelectedShowText(null, EventArgs.Empty);
}
}
catch (Exception ex)
{
MessageBox.Show($"加载数据失败：{ex.Message}", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
/// <summary>
/// 初始化搜索下拉框
/// </summary>
private async Task InitializeSearchDropdowns()
{
try
{
// 员工姓名下拉框
var empNames = await _employeeService.InitializeEmployeeComboBoxAsync();
cmbEmployeeName.DataSource = empNames;
cmbEmployeeName.SelectedIndex = -1;
// 部门下拉框
_departmentTable = await _employeeService.GetDepartmentDataForComboBoxAsync();
cmbDepartment.DataSource = _departmentTable.Copy();
cmbDepartment.DisplayMember = "DepName";
cmbDepartment.ValueMember = "DepID";
cmbDepartment.SelectedIndex = -1;
// 部门负责人下拉框
var managers = await _employeeService.GetDepartmentManagersForComboBoxAsync();
cmbManager.DataSource = managers;
cmbManager.SelectedIndex = -1;
}
catch (Exception ex)
{
MessageBox.Show($"初始化搜索下拉框失败：{ex.Message}", "警告", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
}
/// <summary>
/// 更新分页信息
/// </summary>
private void UpdatePaginationInfo(PaginationResult result)
{
string searchModeInfo = _searchMode ? "（搜索模式）" : "";
lblPageInfo.Text = $"第 {result.StartRecord}-{result.EndRecord} 条，共 {result.TotalRecords} 条，第 {result.CurrentPage}/{result.TotalPages} 页{searchModeInfo}";
txtPageNumber.Text = _currentPage.ToString();
// 更新按钮状态
btnFirstPage.Enabled = _currentPage > 1;
btnPreviousPage.Enabled = _currentPage > 1;
btnNextPage.Enabled = _currentPage < _totalPages;
btnLastPage.Enabled = _currentPage < _totalPages;
}
/// <summary>
/// 隐藏所有数据
/// </summary>
private void HideAllData()
{
dgvEmployee.DataSource = null;
ClearEmployeeInfo();
_isLoggedIn = false;
_currentPage = 1;
}
/// <summary>
/// 清空员工信息显示
/// </summary>
private void ClearEmployeeInfo()
{
foreach (Control control in gbEmployeeInfo.Controls)
{
if (control is Label label && label.Name.StartsWith("lbl"))
{
label.Text = "";
}
}
}
#endregion
#region 事件处理
/// <summary>
/// DataGridView行选中事件
/// </summary>
private void OnRowSelectedShowText(object sender, EventArgs e)
{
if (!_isLoggedIn || dgvEmployee.SelectedRows.Count == 0)
{
ClearEmployeeInfo();
return;
}
DataGridViewRow selectedRow = dgvEmployee.SelectedRows[0];
UpdateEmployeeInfo(selectedRow);
}
/// <summary>
/// 更新员工信息显示
/// </summary>
private void UpdateEmployeeInfo(DataGridViewRow row)
{
Dictionary<string, string> fieldMapping = new Dictionary<string, string>
{
{ "员工ID", "员工ID" },
{ "员工姓名", "员工姓名" },
{ "员工性别", "员工性别" },
{ "员工年龄", "员工年龄" },
{ "所属部门", "所属部门" },
{ "入职时间", "入职时间" },
{ "员工密码", "员工密码" },
{ "部门负责人", "部门负责人" },
{ "部门密码", "部门密码" }
};
foreach (var mapping in fieldMapping)
{
Label label = gbEmployeeInfo.Controls["lbl" + mapping.Key] as Label;
if (label != null && row.Cells[mapping.Value].Value != null)
{
string value = row.Cells[mapping.Value].Value.ToString();
// 特殊处理日期格式
if (mapping.Key == "入职时间" && DateTime.TryParse(value, out DateTime date))
{
value = date.ToString("yyyy-MM-dd");
}
label.Text = value;
}
}
}
/// <summary>
/// DataGridView鼠标按下事件（右键菜单）
/// </summary>
private void OnDataGridViewMouseDown(object sender, MouseEventArgs e)
{
if (!_isLoggedIn) return;
if (e.Button == MouseButtons.Right)
{
var hitTest = dgvEmployee.HitTest(e.X, e.Y);
if (hitTest.RowIndex >= 0 && hitTest.RowIndex < dgvEmployee.Rows.Count)
{
dgvEmployee.ClearSelection();
dgvEmployee.Rows[hitTest.RowIndex].Selected = true;
_selectedRow = dgvEmployee.Rows[hitTest.RowIndex];
// 显示右键菜单
ShowContextMenu(e.Location);
}
}
}
/// <summary>
/// 显示右键菜单
/// </summary>
private void ShowContextMenu(Point location)
{
ContextMenuStrip contextMenu = new ContextMenuStrip();
ToolStripMenuItem editEmployee = new ToolStripMenuItem("编辑员工");
editEmployee.Click += OnEditEmployeeClick;
contextMenu.Items.Add(editEmployee);
ToolStripMenuItem editDepartment = new ToolStripMenuItem("编辑部门");
editDepartment.Click += OnEditDepartmentClick;
contextMenu.Items.Add(editDepartment);
contextMenu.Items.Add(new ToolStripSeparator());
ToolStripMenuItem deleteEmployee = new ToolStripMenuItem("删除员工");
deleteEmployee.Click += OnDeleteEmployeeClick;
contextMenu.Items.Add(deleteEmployee);
ToolStripMenuItem deleteDepartment = new ToolStripMenuItem("删除部门");
deleteDepartment.Click += OnDeleteDepartmentClick;
contextMenu.Items.Add(deleteDepartment);
ToolStripMenuItem deleteRow = new ToolStripMenuItem("删除整行");
deleteRow.Click += OnDeleteRowClick;
contextMenu.Items.Add(deleteRow);
contextMenu.Show(dgvEmployee, location);
}
#endregion
#region 分页按钮事件
private async void BtnFirstPage_Click(object sender, EventArgs e)
{
if (!_isLoggedIn) return;
_currentPage = 1;
await LoadPageData();
}
private async void BtnPreviousPage_Click(object sender, EventArgs e)
{
if (!_isLoggedIn) return;
if (_currentPage > 1)
{
_currentPage--;
await LoadPageData();
}
}
private async void BtnNextPage_Click(object sender, EventArgs e)
{
if (!_isLoggedIn) return;
if (_currentPage < _totalPages)
{
_currentPage++;
await LoadPageData();
}
}
private async void BtnLastPage_Click(object sender, EventArgs e)
{
if (!_isLoggedIn) return;
_currentPage = _totalPages;
await LoadPageData();
}
private async void BtnGoToPage_Click(object sender, EventArgs e)
{
if (!_isLoggedIn) return;
if (int.TryParse(txtPageNumber.Text, out int page) && page >= 1 && page <= _totalPages)
{
_currentPage = page;
await LoadPageData();
}
else
{
MessageBox.Show($"请输入有效的页码 (1-{_totalPages})", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
txtPageNumber.Focus();
txtPageNumber.SelectAll();
}
}
#endregion
#region 搜索功能
private async void BtnSearch_Click(object sender, EventArgs e)
{
if (!_isLoggedIn)
{
MessageBox.Show("请先登录！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
try
{
string empName = cmbEmployeeName.Text.Trim();
string deptName = cmbDepartment.Text.Trim();
string manager = cmbManager.Text.Trim();
_searchConditions = _paginationService.BuildSearchConditions(empName, deptName, manager);
_searchMode = !string.IsNullOrEmpty(_searchConditions);
_currentPage = 1;
await LoadPageData();
if (_searchMode)
{
MessageBox.Show($"找到 {_totalRecords} 条匹配记录", "搜索完成", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
// 清空搜索框
cmbEmployeeName.Text = "";
cmbDepartment.Text = "";
cmbManager.Text = "";
}
catch (Exception ex)
{
MessageBox.Show($"搜索失败：{ex.Message}", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
#endregion
#region 主要功能按钮
private void BtnAddEmployee_Click(object sender, EventArgs e)
{
if (!_isLoggedIn)
{
MessageBox.Show("请先登录！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
ShowAddEmployeeForm();
}
private void ShowAddEmployeeForm()
{
// 创建新增员工窗体
AddEmployeeForm form = new AddEmployeeForm(_employeeService, _departmentTable);
form.EmployeeAdded += async (s, args) =>
{
MessageBox.Show("员工添加成功！", "成功", MessageBoxButtons.OK, MessageBoxIcon.Information);
await LoadPageData();
};
form.ShowDialog();
}
private void BtnAddDepartment_Click(object sender, EventArgs e)
{
if (!_isLoggedIn)
{
MessageBox.Show("请先登录！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
ShowAddDepartmentForm();
}
private async void ShowAddDepartmentForm()
{
AddDepartmentForm form = new AddDepartmentForm(_departmentService);
if (form.ShowDialog() == DialogResult.OK)
{
MessageBox.Show("部门添加成功！", "成功", MessageBoxButtons.OK, MessageBoxIcon.Information);
await InitializeSearchDropdowns();
await LoadPageData();
}
}
private async void BtnRefresh_Click(object sender, EventArgs e)
{
if (!_isLoggedIn)
{
MessageBox.Show("请先登录！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
try
{
Cursor = Cursors.WaitCursor;
await LoadPageData();
MessageBox.Show("数据已刷新！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
catch (Exception ex)
{
MessageBox.Show($"刷新失败：{ex.Message}", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
finally
{
Cursor = Cursors.Default;
}
}
private async void BtnExport_Click(object sender, EventArgs e)
{
if (!_isLoggedIn)
{
MessageBox.Show("请先登录！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
if (dgvEmployee.Rows.Count == 0)
{
MessageBox.Show("没有可导出的数据！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
using (SaveFileDialog saveFileDialog = new SaveFileDialog())
{
saveFileDialog.Filter = "Excel文件 (*.xlsx)|*.xlsx";
saveFileDialog.Title = "导出员工数据";
saveFileDialog.FileName = $"员工数据_{DateTime.Now:yyyyMMddHHmmss}.xlsx";
if (saveFileDialog.ShowDialog() == DialogResult.OK)
{
try
{
Cursor = Cursors.WaitCursor;
string filePath = await _exportService.ExportEmployeesToExcelAsync(saveFileDialog.FileName, dgvEmployee);
MessageBox.Show($"数据已成功导出到：\n{filePath}", "导出成功",
MessageBoxButtons.OK, MessageBoxIcon.Information);
}
catch (Exception ex)
{
MessageBox.Show($"导出失败：{ex.Message}", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
finally
{
Cursor = Cursors.Default;
}
}
}
}
private void BtnExit_Click(object sender, EventArgs e)
{
if (MessageBox.Show("确定要退出系统吗？", "确认退出",
MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
{
Application.Exit();
}
}
#endregion
#region 右键菜单事件处理
private void OnEditEmployeeClick(object sender, EventArgs e)
{
if (_selectedRow == null) return;
ShowEditEmployeeForm();
}
private void ShowEditEmployeeForm()
{
int empId = Convert.ToInt32(_selectedRow.Cells["员工ID"].Value);
string empName = _selectedRow.Cells["员工姓名"].Value?.ToString();
string gender = _selectedRow.Cells["员工性别"].Value?.ToString();
int age = Convert.ToInt32(_selectedRow.Cells["员工年龄"].Value);
string deptName = _selectedRow.Cells["所属部门"].Value?.ToString();
DateTime hireDate = Convert.ToDateTime(_selectedRow.Cells["入职时间"].Value);
string password = _selectedRow.Cells["员工密码"].Value?.ToString();
EditEmployeeForm form = new EditEmployeeForm(
empId, empName, gender, age, deptName, hireDate, password,
_employeeService, _departmentTable, _ageList);
form.EmployeeUpdated += async (s, args) =>
{
MessageBox.Show("员工信息更新成功！", "成功", MessageBoxButtons.OK, MessageBoxIcon.Information);
await LoadPageData();
};
form.ShowDialog();
}
private void OnEditDepartmentClick(object sender, EventArgs e)
{
if (_selectedRow == null) return;
ShowEditDepartmentForm();
}
private void ShowEditDepartmentForm()
{
string deptName = _selectedRow.Cells["所属部门"].Value?.ToString();
string manager = _selectedRow.Cells["部门负责人"].Value?.ToString();
string password = _selectedRow.Cells["部门密码"].Value?.ToString();
EditDepartmentForm form = new EditDepartmentForm(
deptName, manager, password, _departmentService, _departmentTable);
form.DepartmentUpdated += async (s, args) =>
{
MessageBox.Show("部门信息更新成功！", "成功", MessageBoxButtons.OK, MessageBoxIcon.Information);
await LoadPageData();
await InitializeSearchDropdowns();
};
form.ShowDialog();
}
private void OnDeleteEmployeeClick(object sender, EventArgs e)
{
if (_selectedRow == null) return;
string empName = _selectedRow.Cells["员工姓名"].Value?.ToString();
if (MessageBox.Show($"确定要删除员工【{empName}】吗？", "确认删除",
MessageBoxButtons.YesNo, MessageBoxIcon.Warning) == DialogResult.Yes)
{
DeleteEmployee();
}
}
private async void DeleteEmployee()
{
try
{
int empId = Convert.ToInt32(_selectedRow.Cells["员工ID"].Value);
bool success = await _employeeService.DeleteEmployeeAsync(empId);
if (success)
{
MessageBox.Show("员工删除成功！", "成功", MessageBoxButtons.OK, MessageBoxIcon.Information);
await LoadPageData();
}
}
catch (Exception ex)
{
MessageBox.Show($"删除失败：{ex.Message}", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void OnDeleteDepartmentClick(object sender, EventArgs e)
{
if (_selectedRow == null) return;
string deptName = _selectedRow.Cells["所属部门"].Value?.ToString();
if (MessageBox.Show($"确定要删除部门【{deptName}】吗？\n删除前请先转移部门员工。", "确认删除",
MessageBoxButtons.YesNo, MessageBoxIcon.Warning) == DialogResult.Yes)
{
ShowDeleteDepartmentForm();
}
}
private void ShowDeleteDepartmentForm()
{
string deptName = _selectedRow.Cells["所属部门"].Value?.ToString();
DeleteDepartmentForm form = new DeleteDepartmentForm(deptName, _departmentService, _departmentTable);
form.DepartmentDeleted += async (s, args) =>
{
MessageBox.Show("部门删除成功！", "成功", MessageBoxButtons.OK, MessageBoxIcon.Information);
await LoadPageData();
await InitializeSearchDropdowns();
};
form.ShowDialog();
}
private void OnDeleteRowClick(object sender, EventArgs e)
{
if (_selectedRow == null) return;
string empName = _selectedRow.Cells["员工姓名"].Value?.ToString();
string deptName = _selectedRow.Cells["所属部门"].Value?.ToString();
if (MessageBox.Show($"确定要删除员工【{empName}】（部门：{deptName}）吗？", "确认删除",
MessageBoxButtons.YesNo, MessageBoxIcon.Warning) == DialogResult.Yes)
{
DeleteEmployee();
}
}
#endregion
/// <summary>
/// 清理资源
/// </summary>
protected override void Dispose(bool disposing)
{
if (disposing)
{
// 清理事件绑定
if (dgvEmployee != null)
{
dgvEmployee.SelectionChanged -= OnRowSelectedShowText;
dgvEmployee.MouseDown -= OnDataGridViewMouseDown;
}
if (btnLogin != null)
btnLogin.Click -= BtnLogin_Click;
// 清理其他事件绑定...
}
base.Dispose(disposing);
}
}
}2. Program.cs (应用程序入口)
csharp
using System;
using System.Windows.Forms;
namespace PresentationLayer
{
internal static class Program
{
/// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main()
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new Form1());
}
}
}3. 子窗体类
AddEmployeeForm.cs (新增员工窗体)
csharp
using BusinessLogicLayer;
using System;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Windows.Forms;
namespace PresentationLayer
{
public partial class AddEmployeeForm : Form
{
private readonly EmployeeService _employeeService;
private readonly DataTable _departmentTable;
private readonly ComboBox cmbGender;
private readonly ComboBox cmbAge;
private readonly ComboBox cmbDepartment;
private readonly TextBox txtName;
private readonly DateTimePicker dtpHireDate;
private readonly TextBox txtPassword;
public event EventHandler EmployeeAdded;
public AddEmployeeForm(EmployeeService employeeService, DataTable departmentTable)
{
_employeeService = employeeService;
_departmentTable = departmentTable;
InitializeForm();
InitializeControls();
}
private void InitializeForm()
{
this.Text = "新增员工";
this.Size = new Size(400, 400);
this.StartPosition = FormStartPosition.CenterParent;
this.FormBorderStyle = FormBorderStyle.FixedDialog;
this.MaximizeBox = false;
this.MinimizeBox = false;
}
private void InitializeControls()
{
int y = 20;
int labelWidth = 80;
int controlWidth = 200;
// 员工姓名
Label lblName = new Label
{
Text = "员工姓名：",
Location = new Point(30, y),
Size = new Size(labelWidth, 25)
};
this.Controls.Add(lblName);
txtName = new TextBox
{
Location = new Point(120, y),
Size = new Size(controlWidth, 25)
};
this.Controls.Add(txtName);
y += 40;
// 员工性别
Label lblGender = new Label
{
Text = "员工性别：",
Location = new Point(30, y),
Size = new Size(labelWidth, 25)
};
this.Controls.Add(lblGender);
cmbGender = new ComboBox
{
Location = new Point(120, y),
Size = new Size(controlWidth, 25),
DropDownStyle = ComboBoxStyle.DropDownList
};
cmbGender.Items.AddRange(Constants.Genders);
if (cmbGender.Items.Count > 0)
cmbGender.SelectedIndex = 0;
this.Controls.Add(cmbGender);
y += 40;
// 员工年龄
Label lblAge = new Label
{
Text = "员工年龄：",
Location = new Point(30, y),
Size = new Size(labelWidth, 25)
};
this.Controls.Add(lblAge);
cmbAge = new ComboBox
{
Location = new Point(120, y),
Size = new Size(controlWidth, 25),
DropDownStyle = ComboBoxStyle.DropDownList
};
for (int i = Constants.MinAge; i <= Constants.MaxAge; i++)
cmbAge.Items.Add(i);
if (cmbAge.Items.Count > 0)
cmbAge.SelectedIndex = 0;
this.Controls.Add(cmbAge);
y += 40;
// 所属部门
Label lblDepartment = new Label
{
Text = "所属部门：",
Location = new Point(30, y),
Size = new Size(labelWidth, 25)
};
this.Controls.Add(lblDepartment);
cmbDepartment = new ComboBox
{
Location = new Point(120, y),
Size = new Size(controlWidth, 25),
DropDownStyle = ComboBoxStyle.DropDownList
};
if (_departmentTable != null)
{
cmbDepartment.DisplayMember = "DepName";
cmbDepartment.ValueMember = "DepID";
cmbDepartment.DataSource = _departmentTable;
}
this.Controls.Add(cmbDepartment);
y += 40;
// 入职时间
Label lblHireDate = new Label
{
Text = "入职时间：",
Location = new Point(30, y),
Size = new Size(labelWidth, 25)
};
this.Controls.Add(lblHireDate);
dtpHireDate = new DateTimePicker
{
Location = new Point(120, y),
Size = new Size(controlWidth, 25),
Format = DateTimePickerFormat.Custom,
CustomFormat = "yyyy-MM-dd",
Value = DateTime.Now
};
this.Controls.Add(dtpHireDate);
y += 40;
// 员工密码
Label lblPassword = new Label
{
Text = "员工密码：",
Location = new Point(30, y),
Size = new Size(labelWidth, 25)
};
this.Controls.Add(lblPassword);
txtPassword = new TextBox
{
Location = new Point(120, y),
Size = new Size(controlWidth, 25),
Text = Constants.DefaultEmployeePassword
};
this.Controls.Add(txtPassword);
y += 50;
// 按钮
Button btnAdd = new Button
{
Text = "添加",
Location = new Point(80, y),
Size = new Size(100, 30),
BackColor = Color.LightGreen
};
btnAdd.Click += BtnAdd_Click;
this.Controls.Add(btnAdd);
Button btnCancel = new Button
{
Text = "取消",
Location = new Point(200, y),
Size = new Size(100, 30)
};
btnCancel.Click += (s, e) => this.Close();
this.Controls.Add(btnCancel);
}
private async void BtnAdd_Click(object sender, EventArgs e)
{
if (string.IsNullOrWhiteSpace(txtName.Text))
{
MessageBox.Show("请输入员工姓名！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
txtName.Focus();
return;
}
if (cmbGender.SelectedItem == null || cmbAge.SelectedItem == null || cmbDepartment.SelectedValue == null)
{
MessageBox.Show("请完善所有必填项！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
try
{
int depId = (int)cmbDepartment.SelectedValue;
bool success = await _employeeService.AddEmployeeAsync(
txtName.Text.Trim(),
cmbGender.SelectedItem.ToString(),
(int)cmbAge.SelectedItem,
depId,
dtpHireDate.Value,
txtPassword.Text.Trim());
if (success)
{
EmployeeAdded?.Invoke(this, EventArgs.Empty);
this.Close();
}
else
{
MessageBox.Show("添加员工失败！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
catch (Exception ex)
{
MessageBox.Show($"添加失败：{ex.Message}", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
}
}EditEmployeeForm.cs (编辑员工窗体)
csharp
using BusinessLogicLayer;
using System;
using System.Collections.Generic;
using System.Data;
using System.Drawing;
using System.Windows.Forms;
namespace PresentationLayer
{
public partial class EditEmployeeForm : Form
{
private readonly int _empId;
private readonly EmployeeService _employeeService;
private readonly DataTable _departmentTable;
private readonly List<int> _ageList;
private readonly ComboBox cmbGender;
private readonly ComboBox cmbAge;
private readonly ComboBox cmbDepartment;
private readonly TextBox txtName;
private readonly DateTimePicker dtpHireDate;
private readonly TextBox txtPassword;
public event EventHandler EmployeeUpdated;
public EditEmployeeForm(int empId, string empName, string gender, int age,
string deptName, DateTime hireDate, string password,
EmployeeService employeeService, DataTable departmentTable,
List<int> ageList)
{
_empId = empId;
_employeeService = employeeService;
_departmentTable = departmentTable;
_ageList = ageList;
InitializeForm();
InitializeControls(empName, gender, age, deptName, hireDate, password);
}
private void InitializeForm()
{
this.Text = "编辑员工信息";
this.Size = new Size(400, 400);
this.StartPosition = FormStartPosition.CenterParent;
this.FormBorderStyle = FormBorderStyle.FixedDialog;
this.MaximizeBox = false;
this.MinimizeBox = false;
}
private void InitializeControls(string empName, string gender, int age,
string deptName, DateTime hireDate, string password)
{
int y = 20;
int labelWidth = 80;
int controlWidth = 200;
// 员工ID (只读)
Label lblId = new Label
{
Text = "员工ID：",
Location = new Point(30, y),
Size = new Size(labelWidth, 25)
};
this.Controls.Add(lblId);
Label lblIdValue = new Label
{
Text = _empId.ToString(),
Location = new Point(120, y),
Size = new Size(controlWidth, 25),
BorderStyle = BorderStyle.FixedSingle
};
this.Controls.Add(lblIdValue);
y += 40;
// 员工姓名
Label lblName = new Label
{
Text = "员工姓名：",
Location = new Point(30, y),
Size = new Size(labelWidth, 25)
};
this.Controls.Add(lblName);
txtName = new TextBox
{
Location = new Point(120, y),
Size = new Size(controlWidth, 25),
Text = empName
};
this.Controls.Add(txtName);
y += 40;
// 员工性别
Label lblGender = new Label
{
Text = "员工性别：",
Location = new Point(30, y),
Size = new Size(labelWidth, 25)
};
this.Controls.Add(lblGender);
cmbGender = new ComboBox
{
Location = new Point(120, y),
Size = new Size(controlWidth, 25),
DropDownStyle = ComboBoxStyle.DropDownList
};
cmbGender.Items.AddRange(Constants.Genders);
cmbGender.SelectedItem = gender;
this.Controls.Add(cmbGender);
y += 40;
// 员工年龄
Label lblAge = new Label
{
Text = "员工年龄：",
Location = new Point(30, y),
Size = new Size(labelWidth, 25)
};
this.Controls.Add(lblAge);
cmbAge = new ComboBox
{
Location = new Point(120, y),
Size = new Size(controlWidth, 25),
DropDownStyle = ComboBoxStyle.DropDownList
};
cmbAge.Items.AddRange(_ageList.Cast<object>().ToArray());
cmbAge.SelectedItem = age;
this.Controls.Add(cmbAge);
y += 40;
// 所属部门
Label lblDepartment = new Label
{
Text = "所属部门：",
Location = new Point(30, y),
Size = new Size(labelWidth, 25)
};
this.Controls.Add(lblDepartment);
cmbDepartment = new ComboBox
{
Location = new Point(120, y),
Size = new Size(controlWidth, 25),
DropDownStyle = ComboBoxStyle.DropDownList
};
if (_departmentTable != null)
{
cmbDepartment.DisplayMember = "DepName";
cmbDepartment.ValueMember = "DepID";
cmbDepartment.DataSource = _departmentTable;
// 设置选中值
foreach (DataRow row in _departmentTable.Rows)
{
if (row["DepName"].ToString() == deptName)
{
cmbDepartment.SelectedValue = row["DepID"];
break;
}
}
}
this.Controls.Add(cmbDepartment);
y += 40;
// 入职时间
Label lblHireDate = new Label
{
Text = "入职时间：",
Location = new Point(30, y),
Size = new Size(labelWidth, 25)
};
this.Controls.Add(lblHireDate);
dtpHireDate = new DateTimePicker
{
Location = new Point(120, y),
Size = new Size(controlWidth, 25),
Format = DateTimePickerFormat.Custom,
CustomFormat = "yyyy-MM-dd",
Value = hireDate
};
this.Controls.Add(dtpHireDate);
y += 40;
// 员工密码
Label lblPassword = new Label
{
Text = "员工密码：",
Location = new Point(30, y),
Size = new Size(labelWidth, 25)
};
this.Controls.Add(lblPassword);
txtPassword = new TextBox
{
Location = new Point(120, y),
Size = new Size(controlWidth, 25),
Text = password
};
this.Controls.Add(txtPassword);
y += 50;
// 按钮
Button btnUpdate = new Button
{
Text = "更新",
Location = new Point(80, y),
Size = new Size(100, 30),
BackColor = Color.LightGreen
};
btnUpdate.Click += BtnUpdate_Click;
this.Controls.Add(btnUpdate);
Button btnCancel = new Button
{
Text = "取消",
Location = new Point(200, y),
Size = new Size(100, 30)
};
btnCancel.Click += (s, e) => this.Close();
this.Controls.Add(btnCancel);
}
private async void BtnUpdate_Click(object sender, EventArgs e)
{
if (string.IsNullOrWhiteSpace(txtName.Text))
{
MessageBox.Show("请输入员工姓名！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
txtName.Focus();
return;
}
try
{
int depId = (int)cmbDepartment.SelectedValue;
bool success = await _employeeService.UpdateEmployeeAsync(
_empId,
txtName.Text.Trim(),
cmbGender.SelectedItem.ToString(),
(int)cmbAge.SelectedItem,
depId,
dtpHireDate.Value,
txtPassword.Text.Trim());
if (success)
{
EmployeeUpdated?.Invoke(this, EventArgs.Empty);
this.Close();
}
else
{
MessageBox.Show("更新员工信息失败！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
catch (Exception ex)
{
MessageBox.Show($"更新失败：{ex.Message}", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
}
}AddDepartmentForm.cs (新增部门窗体)
csharp
using BusinessLogicLayer;
using System;
using System.Drawing;
using System.Windows.Forms;
namespace PresentationLayer
{
public partial class AddDepartmentForm : Form
{
private readonly DepartmentService _departmentService;
private readonly TextBox txtName;
private readonly TextBox txtManager;
private readonly TextBox txtPassword;
private readonly TextBox txtDescription;
public AddDepartmentForm(DepartmentService departmentService)
{
_departmentService = departmentService;
InitializeForm();
InitializeControls();
}
private void InitializeForm()
{
this.Text = "新增部门";
this.Size = new Size(400, 350);
this.StartPosition = FormStartPosition.CenterParent;
this.FormBorderStyle = FormBorderStyle.FixedDialog;
this.MaximizeBox = false;
this.MinimizeBox = false;
}
private void InitializeControls()
{
int y = 20;
int labelWidth = 80;
int controlWidth = 200;
// 部门名称
Label lblName = new Label
{
Text = "部门名称：",
Location = new Point(30, y),
Size = new Size(labelWidth, 25)
};
this.Controls.Add(lblName);
txtName = new TextBox
{
Location = new Point(120, y),
Size = new Size(controlWidth, 25)
};
this.Controls.Add(txtName);
y += 40;
// 部门负责人
Label lblManager = new Label
{
Text = "部门负责人：",
Location = new Point(30, y),
Size = new Size(labelWidth, 25)
};
this.Controls.Add(lblManager);
txtManager = new TextBox
{
Location = new Point(120, y),
Size = new Size(controlWidth, 25)
};
this.Controls.Add(txtManager);
y += 40;
// 部门密码
Label lblPassword = new Label
{
Text = "部门密码：",
Location = new Point(30, y),
Size = new Size(labelWidth, 25)
};
this.Controls.Add(lblPassword);
txtPassword = new TextBox
{
Location = new Point(120, y),
Size = new Size(controlWidth, 25),
Text = Constants.DefaultDepartmentPassword
};
this.Controls.Add(txtPassword);
y += 40;
// 部门描述
Label lblDescription = new Label
{
Text = "部门描述：",
Location = new Point(30, y),
Size = new Size(labelWidth, 25)
};
this.Controls.Add(lblDescription);
txtDescription = new TextBox
{
Location = new Point(120, y),
Size = new Size(controlWidth, 60),
Multiline = true
};
this.Controls.Add(txtDescription);
y += 70;
// 按钮
Button btnAdd = new Button
{
Text = "添加",
Location = new Point(80, y),
Size = new Size(100, 30),
BackColor = Color.LightGreen
};
btnAdd.Click += BtnAdd_Click;
this.Controls.Add(btnAdd);
Button btnCancel = new Button
{
Text = "取消",
Location = new Point(200, y),
Size = new Size(100, 30)
};
btnCancel.Click += (s, e) => this.Close();
this.Controls.Add(btnCancel);
}
private async void BtnAdd_Click(object sender, EventArgs e)
{
if (string.IsNullOrWhiteSpace(txtName.Text))
{
MessageBox.Show("请输入部门名称！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
txtName.Focus();
return;
}
if (string.IsNullOrWhiteSpace(txtManager.Text))
{
MessageBox.Show("请输入部门负责人！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
txtManager.Focus();
return;
}
try
{
bool success = await _departmentService.AddDepartmentAsync(
txtName.Text.Trim(),
txtDescription.Text.Trim(),
txtManager.Text.Trim(),
txtPassword.Text.Trim());
if (success)
{
this.DialogResult = DialogResult.OK;
this.Close();
}
else
{
MessageBox.Show("添加部门失败！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
catch (Exception ex)
{
MessageBox.Show($"添加失败：{ex.Message}", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
}
}4. 使用说明
-
创建项目：
- 创建新的Windows Forms Application (.NET Framework)项目
- 添加对BusinessLogicLayer、DataAccessLayer、Common项目的引用
-
添加NuGet包：
- Microsoft.Data.SqlClient
- EPPlus
-
配置连接字符串：
- 在Common项目的AppSettings.cs中修改连接字符串
-
窗体设计：
- 如果需要可视化设计，可以在Visual Studio中使用窗体设计器
- 控件的名称需要与代码中的名称对应
-
运行程序：
- 默认用户名：admin
- 默认密码：需要根据数据库中的实际密码填写
这个完整的UI层实现了所有功能：
- 登录认证
- 员工数据分页显示
- 员工信息详情展示
- 搜索功能（员工姓名、部门、负责人）
- 新增/编辑/删除员工
- 新增/编辑/删除部门
- 数据导出到Excel
- 记住密码功能
- 右键菜单操作