如何将 HTML 添加到此 Knockout.js Viewmodel 变量？

Question

我在页面上显示了一个步骤列表。一些步骤（但不是全部）将有 1-3 个子步骤。我在想最简单的方法就是在视图模型的每个步骤声明中手动编写 HTML。

如果你看下面的代码，我想做的是这样的：

this.sidebarStepModel1 = new SidebarStepModel();
this.sidebarStepModel1.message("step 2 <ul><li>substep 1</li><li>substep2</li></ul>");

问题是，HTML 被解释为 string 而不是 HTML。我怎样才能让它将 HTML 解释为实际的 HTML?

Fiddle: https://jsfiddle.net/8o31m6rq/2/

HTML:

<ul>
    <sidebar-step params="vm: sidebarStepModel0"></sidebar-step>
    <sidebar-step params="vm: sidebarStepModel1"></sidebar-step>
    <sidebar-step params="vm: sidebarStepModel2"></sidebar-step>
</ul>

JavaScript/Knockout:

//custom element <sidebar-step>
ko.components.register("sidebar-step", {
    synchronous: true,
    viewModel: function (params) {
        this.vm = params.vm;
    },

    template: "<li data-bind='text: vm.message'>vm.onChangeElement</li>"
});

// model
var SidebarStepModel = function () {
    this.message = ko.observable("step description");
};

// viewmodel
var OrderGuideViewModel = function () {

    this.sidebarStepModel0 = new SidebarStepModel();
    this.sidebarStepModel0.message("step 1");

    this.sidebarStepModel1 = new SidebarStepModel();
    this.sidebarStepModel1.message("step 2");

    this.sidebarStepModel2 = new SidebarStepModel();
    this.sidebarStepModel2.message("step 3");
};

ko.applyBindings(new OrderGuideViewModel());

Answer 1

您只需要使用 html binding 而不是 text 绑定：

template: "<li data-bind='html: vm.message'>vm.onChangeElement</li>"

Updated fiddle

如何将 HTML 添加到此 Knockout.js Viewmodel 变量？

How can I add HTML to this Knockout.js Viewmodel variable?

javascript

html

knockout.js

knockout-components

knockout-templating