我有一个C#代码,如下所示:
foreach (var entry in this.ChangeTracker.Entries()
.Where(e => e.Entity is IAuditableTable &&
e.State == EntityState.Added))
{
IAuditableTable e = (IAuditableTable)entry.Entity;
e.ModifiedDate = DateTime.Now;
}
这似乎就像foreach和LINQ的结合.sometone告诉我,我可以删除foreach并将其合并到一个LINQ语句中
我已经在我的应用程序中更新,修改和删除了文件,现在我已准备好提交.这是状态:
C:\G\ab\WebAdminApp>git status
On branch master
Your branch is up-to-date with 'origin/master'.
Changes not staged for commit:
(use "git add/rm <file>..." to update what will be committed)
(use "git checkout -- <file>..." to discard changes in working directory)
modified: WebAdminApp.csproj
modified: WebAdminApp.csproj.user
modified: app/admin/controllers/ContentController.ts
deleted: app/admin/interfaces/IEnumService.ts
modified: app/admin/interfaces/IHomeController.d.ts
modified: lib/pagedown/Markdown.Sanitizer.ts
deleted: lib/typings/global.ts
modified: package.json
modified: ../abilitest-admin.v12.suo
Untracked files:
(use "git add <file>..." to include in what will be committed)
app/interfaces/IEnumService.d.ts
app/interfaces/IUtilityService.d.ts
../npm-debug.log
没有更改添加到提交(使用"git add"和/或"git commit -a")
当我进入:
git add . …我有一个AngularJS SPA应用程序,我使用Visual Studio 2015开发.当我点击发布它发布index.html并且工作得很好.但是,如果我在页面上并单击刷新,则会尝试刷新SPA页面,例如example.com/home/about.这失败了,因为我没有家/关于页面.
有没有办法可以修改我的web.config文件(仅用于本地测试),这样它实际上会转到index.html(加载它)然后转到/ home/about状态？
这是我当前的web.config:
<configuration>
<system.web>
<compilation debug="true" targetFramework="4.5" />
<httpRuntime targetFramework="4.5" />
</system.web>
</configuration>
我有一个类对象的集合:
Tests
此集合包含许多Test实例:
public class Test {
public string column1 { get; set; }
}
我想使用LINQ来命令内容Tests并将其放入一个名为的新集合中TestsOrdered.我想按内容订购column1.我想用LINQ做这个,后来我想在订购中添加更多内容.
我怎么能用LINQ做到这一点.
我试图指定这个通用但我收到多个错误:
public void AddOrUpdate(T item, V repo) where T: IAuditableTable, V: IAzureTable<TableServiceEntity>
{
try
{
V.AddOrUpdate(item);
}
catch (Exception ex)
{
_ex.Errors.Add("", "Error when adding account");
throw _ex;
}
}
例如,在第一行的V之后的":"给出错误:
Error 3 ; expected
加上其他错误:
Error 2 Constraints are not allowed on non-generic declarations
Error 6 Invalid token ')' in class, struct, or interface member declaration
Error 5 Invalid token '(' in class, struct, or interface member declaration
Error 7 A namespace cannot directly contain members such as fields …我有以下枚举:
public enum EReferenceKey {
Accounts = 1,
Emails = 3,
Phones = 4
}
当我的枚举变量pk是Accounts时,我尝试将其转换为"01"
var a = pk.ToString("00");
它给了我以下例外:
格式字符串只能是"G","g","X","x","F","f","D"或"d"
谁能解释我做错了什么？
有人可以通过解释差异来帮助我.根据我的理解,===确实匹配,但与null相比,这意味着什么？
我的应用程序中有以下代码:
angular.module('home', [])
.controller('homeHomeController', HomeHomeController)
.controller('homeContentController', HomeContentController);
和
class HomeHomeController {
static $inject = [
'$http',
'examService',
'stateService',
'userService'
];
constructor(
private $http: ng.IHttpService,
private $es: IExamService,
private $ss: IStateService,
private $us: IUserService
) {
var self = this;
}
}
我刚刚升级到AngularJS 1.3,现在我收到此错误:
Error: [ng:areq] Argument 'HomeHomeController' is not a function, got undefined
http://errors.angularjs.org/1.3.0/ng/areq?p0=HomeHomeController&p1=not%20aNaNunction%2C%20got%20undefined
at http://127.0.0.1:17315/Scripts/angular.js:80:12
at assertArg (http://127.0.0.1:17315/Scripts/angular.js:1610:11)
at assertArgFn (http://127.0.0.1:17315/Scripts/angular.js:1620:3)
at http://127.0.0.1:17315/Scripts/angular.js:8319:9
at http://127.0.0.1:17315/Scripts/angular.js:7496:34
at forEach (http://127.0.0.1:17315/Scripts/angular.js:343:20)
at nodeLinkFn (http://127.0.0.1:17315/Scripts/angular.js:7483:11)
at compositeLinkFn (http://127.0.0.1:17315/Scripts/angular.js:6991:13)
at publicLinkFn (http://127.0.0.1:17315/Scripts/angular.js:6870:30)
at compile …我一直在使用1.3的beta版本,现在转移到1.3.1后,我注意到一个问题,通过检查所有早期版本,我看到它似乎已经在1.3.0 rc1中启动了.
我有这样的代码:
<select ng-model="home.modal.topicId"
ng-change="ctrl.modalTopicChanged()"
ng-options="item.id as item.name for item in home.modal.option.topics.data"
ng-required="true">
<option style="display: none;" value="">Select Topic</option>
</select>
在rc1之前,首次显示表单时未触发 ng-change .现在它被一个未定义的home.modal.topicId解雇了.这对我来说是一个突破性的变化,但在破坏性变化部分没有提到它,我想知道它是否是一个尚未被注意到的错误.
这是生成的堆栈跟踪:
TypeError: Cannot read property 'dataMap' of undefined
at AdminProblemController.modalTopicChanged (http://127.0.0.1:17315/Content/app/admin/controllers/ProblemController.js:109:114)
at $parseFunctionCall (http://127.0.0.1:17315/Scripts/angular.js:11387:18)
at Scope.$get.Scope.$eval (http://127.0.0.1:17315/Scripts/angular.js:13276:28)
at http://127.0.0.1:17315/Scripts/angular.js:19888:13
at http://127.0.0.1:17315/Scripts/angular.js:19499:9
at forEach (http://127.0.0.1:17315/Scripts/angular.js:331:20)
at $$writeModelToScope (http://127.0.0.1:17315/Scripts/angular.js:19497:5)
at writeToModelIfNeeded (http://127.0.0.1:17315/Scripts/angular.js:19490:14)
at http://127.0.0.1:17315/Scripts/angular.js:19484:9
at validationDone (http://127.0.0.1:17315/Scripts/angular.js:19420:9)
我在这里注意到的是一个新函数:writeToModelIfNeeded
当我查看更改日志差异时,在检查所有更改和行号时,我找不到提及此功能的任何内容.
我想就此提出一些建议.首先是可以找到导致添加writeToModelIfNeeded的更改,其次是选择框的正确功能.我认为整个想法是只有在定义模型值时才会触发ng-change.
这里参考的是新代码的区域,似乎已经添加了1.3.0 rc.1
**
* @ngdoc method
* @name ngModel.NgModelController#$commitViewValue
*
* @description …我环顾四周,一无所获地解释如何使用它.文件说明:
返回将使用值的数组/散列解析的单个promise,每个值对应于promises数组/散列中相同索引/键的promise.如果任何承诺通过拒绝得到解决,则此结果承诺将被拒绝并具有相同的拒绝值.
但没有例子.
有没有人有任何使用密钥/哈希方法的例子？