除了特定 URL 之外的所有地方都隐藏按钮

Question

我有以下按钮：

<button class="btn actionButtonIcon" id="DashboardEdit" data-bind="click: changeButtonText">
    <figure>
        <img src="../../../Images/NotesPink.png" />
        <figcaption data-bind="text: $data.ProcurementbuttonText() ? 'Save': 'Edit'"></figcaption>
    </figure>
</button>

我只想在这个特定的地方显示它url http://localhost:5595/#scorecard/ec5aa8ed-2798-4e71-b13d-f3e525994538/dashboard/PrefDashBoard

请记住 ec5aa8ed-2798-4e71-b13d-f3e525994538 是一个 ID，它总是在变化，但我希望它与所有 ID 一起显示，例如按钮也应该显示在这里 http://localhost:5595/#scorecard/2356789-234-234d-g3g3-reg456452/dashboard/PrefDashBoard 我想将它隐藏在 url 之外的地方。我尝试了以下代码，但它似乎不起作用：

        <script>
     $(document).ready(function(){
    if(window.location.pathname.match(/\/dashboard/PrefDashBoard))
    {
    $(".DashboardEdit").show();
    }
    else
    {
    $(".DashboardEdit").hide();
    }
    });
    </script>

这是该按钮的 JS：

            self.ProcurementbuttonText = ko.observable(false);

        self.changeButtonText = function(){
            self.ProcurementbuttonText(!self.ProcurementbuttonText())
            if (!self.ProcurementbuttonText()){
                var data = {
                    'ScorecardId':ko.observable(localStorage.getItem('scorecardId'))(),
                    'DashboardConfig':ko.observable(localStorage.getItem('ElementDataWidget'))()
                };
                PreferentialProcurementDashboardApi.Save(data);  
            }  
    }



        self.DashboardEdit = ko.computed({
            read: function () {
                var text = 'Customise your dashboard';

                if (!self.EnableScorecardFeatures()) {
                    text = 'This feature is currently unavailable for this scorecard type';
                } else {
                    if (!self.HasDocumentsRole()) {
                        text = 'You do not have sufficient rights to access the Supporting Documents view';
                    }
                }

                return text;
            }
        });

Answer 1

我认为您可以根据您的条件利用 visible 绑定到 show/hide 按钮

function PageViewModel() {
  var self = this;
  self.buttonVisible = ko.observable(true);
  self.changeButtonText = function() {
    self.ProcurementbuttonText(!self.ProcurementbuttonText());
  }
  self.ProcurementbuttonText = ko.observable(false);
  self.buttonText = ko.pureComputed(function() {
    return self.ProcurementbuttonText() ? "Save" : "Edit";
  });
  self.isButtonVisible = ko.computed(function() {
    //do some your logic here.  just need to return a true or false value;
    return self.buttonVisible();
  });

  self.labelText = ko.pureComputed(function() {
    var messageStart = "click to ";
    var state = self.buttonVisible() ? 'hide' : 'show';
    var messageEnd = " button";

    return messageStart + state + messageEnd;

  });
}

ko.applyBindings(new PageViewModel());

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>

<button class="btn actionButtonIcon" id="DashboardEdit" data-bind="click: changeButtonText, visible: isButtonVisible, text: buttonText">
Click me.
</button>
<br/>
<br/>
<label><span data-bind="text: labelText " ></span>
  <input type="checkbox" data-bind="checked: buttonVisible" />
</label>

Answer 2

如果您安装并配置了 Durandal 的路由器插件，您还可以使用 activeInstruction() observable 来获取有关当前路由的信息。然后，您可以在计算中使用它来检查当前片段是否与您的页面路由匹配。更多信息在这里：http://durandaljs.com/documentation/api#class/Router/property/activeInstruction

除了特定 URL 之外的所有地方都隐藏按钮

Hide button everywhere besides specific URL in knockout

javascript

knockout.js

durandal