Challenges encountered in integrating templates with VUE in a .NET MVC implementation

I'm currently facing a challenge with implementing an external template in my ASP.NET MVC page that contains a Vue app. I've been trying to move the template section of this component to an external file, but so far, I have not been successful.

The code I have currently works fine, however, it is becoming difficult to maintain and build upon due to the loss of text editing features.

Here is the snippet of the code that is functioning as intended:

var foo = Vue.component('foo', {
  template:'
  <table class="table">
     <template v-for="(foo, ColName, index) in foos">
        <template v-if="index % 3 == 0">
            <tr>
            </tr>
        </template>
        <th>{{ColName}}</th>
        <td v-if="foo">{{foo}}</td>
        <td v-else> -- </td>
     </template>
  </table>',
  data: function () { 
    return {
      foos: null,
      NumColuns: 3 
    }
  }, 
  mounted() { 
   axios
    .get('/api/account/foo/')
    .then(response => {
      this.foos = response.data                
     })
    .catch(error => {
      console.log(error1)
        this.errored = true
    })
    .finally(() => this.loading = false)
  }
});
var foo = new Vue({ 
  el: '#foo-vue' 
});

Answer №1

If you're looking to retrieve the HTML template from a file, utilizing an async component is necessary.

For more information, refer to the documentation: https://v2.vuejs.org/v2/guide/components-dynamic-async.html

In the provided example, the approach involves fetching the HTML content and returning the promise within the Vue.component factory.

<!doctype html>
<html lang="en">

<head>
  <meta charset="utf-8">
  <script src="https://unpkg.com/vue"></script>
</head>

<body>

  <div id="app">
    <foo></foo>
  </div>

  <script>
    var foo = Vue.component('foo', () => {
      return fetch('/template.html')
        .then((response) => response.text())
        .then((html) => {
          return {
            template: html,
            data: function () {
              return { foos: null, NumColuns: 3 }
            },
            mounted() {
              this.foos = [{ foo: 1, ColName: "A" }];
              //  axios.get('/api/account/foo/').then(response => {
              //     this.foos = response.data
              //    })
              //   .finally(() => this.loading = false)
            }
          };
        });
    });
    var foo = new Vue({
      el: '#app'
    });
  </script>
</body>

</html>

content of template.html:

<table class="table">
 <template v-for="(foo, ColName, index) in foos">
    <template v-if="index % 3 == 0">
        <tr>
        </tr>
    </template>
    <th>{{ColName}}</th>
    <td v-if="foo">{{foo}}</td>
    <td v-else> -- </td>
 </template>
</table>

Answer №2

If you want to streamline your Vue project, consider setting up a comprehensive configuration that allows you to utilize .vue template files. I came across an informative article recently that delves into the process in great detail, although it is primarily tailored towards browser extensions. Nevertheless, the majority of the steps required to implement this approach are quite similar, so feel free to check out the article here: https://medium.com/javascript-in-plain-english/how-i-built-a-browser-extension-with-vue-part-2-2c4ab2dd752d.

In essence, what you'll be doing is configuring the Vue project yourself using Webpack to compile the Vue files into a single app.js file, which can then be referenced in your file (as demonstrated in the tutorial by utilizing the app.html file). This will facilitate the integration of its components into the #app element and manage all virtual DOM manipulations seamlessly.

Answer №3

If you're utilizing a .cshtml template in your view, a simple way to handle it is by extracting the template to an HTML file and then loading that file as raw HTML code in your ASP.NET MVC view. Since Vue templates are valid HTML, this approach should work seamlessly:

<!-- within cshtml view -->
<script id="my-component" type="text/x-template">
    @Html.Raw(File.ReadAllText(Server.MapPath("~/Path/To/Template/my-component-template.html")))
</script>

Within your Vue component, using template: '#my-component' should function as intended.

For more information, refer to the documentation on Vue: Edge Cases

Additionally, consider creating partial views for your components or implementing an extension method to enhance readability and potentially add caching mechanisms.

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