小编Hel*_*rld的帖子

如果 angular < 4.3.6 不适用，该代码至少适用于 angular 2。

目前gradingKey对象在显示或编辑模板中是未定义的。

它在 getTemplate(gradingKey) 方法中不是未定义的。

gradingKey 被初始化为类字段

成分

@Input() set gradingKeyModel(gradingKeyModel: GradingKeyModel) {
    this.gradingKey = gradingKeyModel.gradingKey;
}

html

<ng-template [ngTemplateOutlet]="getTemplate(gradingKey)" 
             [ngTemplateOutletContext ]="{ $implicit: gradingKey }">
</ng-template>

<ng-template #displayTemplate let-gradingKey>
    <div>
        {{gradingKey}}       
    </div>
</ng-template>

<ng-template #editTemplate let-gradingKey>
    <div>
        {{gradingKey}}       
    </div>
</ng-template>

为什么模板中的 gradingKey 突然未定义？

使用 ngTemplateOutletContext 时，访问 ngOutletContext 的方式是否发生了变化？

我从服务器获得一个json格式的图像:

image=iVBORw0KGgoAAAANSUhEUgAAABgAAAAYCAIAA

对于谷歌标记我必须以这种方式分配图像:

  var myImage = "../Content/image.jpeg";

            var markerOptions = {
                position: bound,
                map: map,
                icon: myImage 
            };

如何将json图像数据转换为谷歌地图接受的图像？

我试过这个:

 var image = document.createElement('img');
 image.src = "data:image/png;base64" + base64JsonData;

但这会导致运行时出错.

由于洪水防止,这是我之前未粘贴的完整的json ......:

image=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

这是我的傻瓜http://plnkr.co/edit/GMfMcXgHguYjFYoxWEaM

1.) click the above live demo link
2.) click the "create" button which should activate the projects.create state
3.) an alert() should pop up now but it does not.

为什么没有调用项目状态定义中的onExit和onEnter回调？

当剩下这个状态并且我们激活projects.create状态时,应该触发项目状态onExit.

app.js

   .config(function($stateProvider, $urlRouterProvider) {

    $urlRouterProvider.otherwise('/projects');

        $stateProvider
      .state('projects', {
        url: '/projects',
        views: {
          'menu@""': {
            template: 'Start your projects!'
          },
          'content@': {
            templateUrl: "projects.html",
            controller: 'ProjectsController',
            onEnter: function(){
              alert('hello onEnter');
            },
            onExit: function(){
              alert('hello onExit');
            }
          }
        }
      })
      .state('projects.create', {
        url: '/create',
        views: {
          'outer@': {
            templateUrl: …

我最新使用bootstra3.x。

当浏览器窗口非常小（智能手机）并且引导程序超小（xs）起作用时，如何隐藏某个div？

我只想返回一个.csv文件。

它适用于HttpResponseMessage，但不适用于IHttpActionResult

为什么？

作品

public async Task<HttpResponseMessage> ExportLeads()
{
    byte[] bytes = new byte[2];
    var result = new HttpResponseMessage(HttpStatusCode.OK) { Content = new ByteArrayContent(bytes) };
    result.Content.Headers.ContentType = new MediaTypeHeaderValue("application/octet-stream");
    result.Content.Headers.ContentDisposition = new ContentDispositionHeaderValue("attachment") { FileName = "test.csv" };
    return result;
}

不起作用

public async Task<IHttpActionResult> ExportLeads()
{
    byte[] bytes = new byte[2];
    var result = new HttpResponseMessage(HttpStatusCode.OK) { Content = new ByteArrayContent(bytes) };
    result.Content.Headers.ContentType = new MediaTypeHeaderValue("application/octet-stream");
    result.Content.Headers.ContentDisposition = new ContentDispositionHeaderValue("attachment") { FileName = "test.csv" };
    return …

我想匹配一个字符串,我分成4组:

1.) group has a "-"
2.) group has any char
3.) group has a ":"
4.) group has any char

我试过这个:

Regex regex = new Regex("^[-][.*][:][.*]*$");
bool isMatch = regex.IsMatch("-jobid:3");

isMatch是假的.

我的模式有什么问题？

我最近在IE9 +和Firefox/Chrome上.

http://codepen.io/helloworld/pen/wmuGH

如何在表格看起来像图表的所有列之间添加边距？

我不想在真实的列之间使用空的虚拟列,并设置它们的宽度以伪造边距.

我已经玩了很多填充和边距但是顶部的圆形边框被破坏或者图表列的背景颜色浮动到列之间新创建的间隙中......

更新:

行之间应该没有间隙.

像这样: