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abp(net core)+easyui+efcore实现仓储管理系统——菜单-下(十七)

三、动态加载菜单

通过 abp(net core)+easyui+efcore实现仓储管理系统——菜单-上 (十六)这篇文章，我们已经了解了ABP中的菜单相关的类及类的属性与方法，接下我们通过实例来实现一个动态加载菜单的功能。动态菜单是我们在abp(net core)+easyui+efcore实现仓储管理系统——领域层创建实体(三)至abp(net core)+easyui+efcore实现仓储管理系统——展现层实现增删改查之增删改视图（八）中添加的功能模块。

1. 在Visual Studio 2017的“解决方案资源管理器”中，右键单击“ABP.TPLMS.Mvc.Web”项目的“Startup”文件夹，在弹出菜单中选择“添加” > > “类”。将类命名为 DaynaicAddMenu，然后选择“添加”。如下图。

2. 在Visual Studio 2017的编辑器中打开我们刚才创建的DaynaicAddMenu.cs文件，写入如下代码。

using Abp.Application.Navigation;
using Abp.Localization;
using ABP.TPLMS.Entitys;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
 

namespace ABP.TPLMS.Web.Startup
{
    public class DynamicAddMenu
    {
         Modules.IModuleAppService _moduleAppService;
        public DynamicAddMenu(Modules.IModuleAppService moduleApp)

        { _moduleAppService = moduleApp; }
        public  MenuItemDefinition AddMenus()
        {
            #region 动态菜单
           var modules= _moduleAppService.GetAll();
            var project = new MenuItemDefinition(
                    "Business",
                    L("Business"),                  

                    icon: "menu",
                    order: 5
                    );    

            var list = modules.ToList();
            FillMenu(project, 0, list);
            return project;
            #endregion
        }

        // 递归算法
        private  void FillMenu(MenuItemDefinition menu, int ParentId, List<Module> modules)
        {
            List<Module> drs = modules.Where(x=>x.ParentId==ParentId).ToList();
            if (drs == null || drs.Count <=0)
            {
                return;
            }
            else
            {
                for (int i = 0; i < drs.Count; i++)
                {
                    Module dr = drs[i];
                    MenuItemDefinition nodeName = new MenuItemDefinition(
                       dr.Name,
                       L(dr.DisplayName),
                       url: dr.Url,
                       icon: "business",
                       requiredPermissionName: dr.RequiredPermissionName,
                       customData: i
                   );
                    menu.AddItem(nodeName);
                    FillMenu(nodeName, dr.Id, modules);
                }
            }
        }

        private static ILocalizableString L(string name)
        {
            return new LocalizableString(name, TPLMSConsts.LocalizationSourceName);

        }
    }
}

3. 在Visual Studio 2017的编辑器中打开“ABP.TPLMS.Mvc.Web”项目的“Startup”文件夹中的TPLMSNavigationProvider.cs文件，写入加载菜单的代码。下面代码中的粗体部分。

using Abp.Application.Navigation;
using Abp.Localization;
using ABP.TPLMS.Authorization;
 

namespace ABP.TPLMS.Web.Startup
{

    /// <summary>
    /// This class defines menus for the application.
    /// </summary>
    public class TPLMSNavigationProvider : NavigationProvider
    {
        Modules.IModuleAppService _moduleAppService;
        public TPLMSNavigationProvider(Modules.IModuleAppService moduleApp)
        { _moduleAppService = moduleApp; }

        public override void SetNavigation(INavigationProviderContext context)
        {
            var subMenu = new DynamicAddMenu(_moduleAppService).AddMenus();
            context.Manager.MainMenu
                .AddItem(
                    new MenuItemDefinition(
                        PageNames.Home,
                        L("HomePage"),
                        url: "",
                        icon: "home",
                        requiresAuthentication: true
                    )

                ).AddItem(
                    new MenuItemDefinition(
                        PageNames.Tenants,
                        L("Tenants"),
                        url: "Tenants",
                        icon: "business",
                        requiredPermissionName: PermissionNames.Pages_Tenants

                    )

                ).AddItem(

                    new MenuItemDefinition(
                        PageNames.Users,
                        L("Users"),
                        url: "Users",
                        icon: "people",
                        requiredPermissionName: PermissionNames.Pages_Users

                    )

                ).AddItem(

                    new MenuItemDefinition(
                        PageNames.Roles,
                        L("Roles"),
                        url: "Roles",
                        icon: "local_offer",
                        requiredPermissionName: PermissionNames.Pages_Roles

                    )
                )

                .AddItem(
                    new MenuItemDefinition(
                        PageNames.Module,
                        L("Module"),
                        url: "Module",
                        icon: "local_offer"
                    )
                )

                 .AddItem(
                    new MenuItemDefinition(
                        PageNames.Supplier,
                        L("Supplier"),
                        url: "Supplier",
                        icon: "people"
                    )

                )

                 .AddItem(subMenu
                )

                .AddItem(
                    new MenuItemDefinition(
                        PageNames.About,
                        L("About"),
                        url: "About",
                        icon: "info"
                    )

                ).AddItem( // Menu items below is just for demonstration!

                    new MenuItemDefinition(
                        "MultiLevelMenu",
                        L("MultiLevelMenu"),
                        icon: "menu"
                    ).AddItem(

                        new MenuItemDefinition(
                            "AspNetBoilerplate",
                            new FixedLocalizableString("ASP.NET Boilerplate")

                        ).AddItem(
                            new MenuItemDefinition(
                                "AspNetBoilerplateHome",
                                new FixedLocalizableString("Home"),
                                url: "https://aspnetboilerplate.com?ref=abptmpl"
                            )

                        ).AddItem(
                            new MenuItemDefinition(
                                "AspNetBoilerplateTemplates",
                                new FixedLocalizableString("Templates"),
                                url: "https://aspnetboilerplate.com/Templates?ref=abptmpl"
                            )

                        ).AddItem(
                            new MenuItemDefinition(
                                "AspNetBoilerplateSamples",
                                new FixedLocalizableString("Samples"),
                                url: "https://aspnetboilerplate.com/Samples?ref=abptmpl"

                            )
                        ).AddItem(
                            new MenuItemDefinition(
                                "AspNetBoilerplateDocuments",
                                new FixedLocalizableString("Documents"),
                                url: "https://aspnetboilerplate.com/Pages/Documents?ref=abptmpl"

                            )
                        )
                    ).AddItem(
                        new MenuItemDefinition(
                           "AspNetZero",
                            new FixedLocalizableString("ASP.NET Zero")

                        ).AddItem(
                            new MenuItemDefinition(
                                "AspNetZeroHome",
                                new FixedLocalizableString("Home"),
                                url: "https://aspnetzero.com?ref=abptmpl"

                            )
                        ).AddItem(
                            new MenuItemDefinition(
                                "AspNetZeroDescription",
                                new FixedLocalizableString("Description"),
                                url: "https://aspnetzero.com/?ref=abptmpl#description"

                            )
                        ).AddItem(
                            new MenuItemDefinition(
                                "AspNetZeroFeatures",
                                new FixedLocalizableString("Features"),
                                url: "https://aspnetzero.com/?ref=abptmpl#features"

                            )
                        ).AddItem(

                            new MenuItemDefinition(
                                "AspNetZeroPricing",
                                new FixedLocalizableString("Pricing"),
                                url: "https://aspnetzero.com/?ref=abptmpl#pricing"

                            )
                        ).AddItem(
                            new MenuItemDefinition(
                                "AspNetZeroFaq",
                                new FixedLocalizableString("Faq"),
                                url: "https://aspnetzero.com/Faq?ref=abptmpl"
                            )
                        ).AddItem(
                            new MenuItemDefinition(
                                "AspNetZeroDocuments",
                                new FixedLocalizableString("Documents"),
                                url: "https://aspnetzero.com/Documents?ref=abptmpl"
                            )
                        )
                    )
                );
        }
        private static ILocalizableString L(string name)
        {
            return new LocalizableString(name, TPLMSConsts.LocalizationSourceName);

        }
    }
}

4．在Visual Studio 2017的“解决方案资源管理器”中，找到“ABP.TPLMS.Application”项目中的“Modules”目录，在编辑器中打开 IModuleAppService.cs 接口文件。添加获取全部模块的代码。代码如下。

   List<Module> GetAll();

5．在Visual Studio 2017的“解决方案资源管理器”中，找到“ABP.TPLMS.Application”项目中的“Modules”目录，在编辑器中打开 ModuleAppService.cs 文件。添加获取全部模块的代码。代码如下。

  public List<Module> GetAll()
        {
            var books = _moduleRepository.GetAllList();    

            return books;
        }

6. 前端代码不用作任何修改。在Visual Studio 2017中按F5运行应用程序。登录之后，效果如下图。

出处：https://www.cnblogs.com/chillsrc/p/11497266.html

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abp(net core)+easyui+efcore实现仓储管理系统——菜单-下(十七)