当点击“更多"时，截断并显示或隐藏链接文本.关联 [英] Truncate and show or hide the link text when clicking on "read more" link

问题描述

如果限制超过300个字符，我想隐藏文本并显示 link ，如果单击链接，则显示完整内容.

I want to hide the text if limit exceed to 300 chars and show the link and if click on link then show the full content.

html:

 <tr v-for="(row,index) in datasource">
                            <td v-for="column in gridSchema.grid.columns" class="wrap-break-word" v-show="column.isVisible">  

<span v-if="row[column.headername].length >= 300  && toggle == false" v-html="$options.filters.limitTo(row[column.headername])">
                                    </span><a v-on:click="toggleFlag()" v-show="!row['isEditable'] && row[column.headername].length >= 300  && toggle == false" >Read more</a>
                                    <span v-if="(row[column.headername].length < 300  || toggle == true)" v-html="row[column.headername]">
                                    </span>

<td>
</tr>

js:

  data: {
                ..
                    toggle: false,
datasource:
[
      {
        "id": 0,
        "name": "Christa Hansen",
        "informations": "Unpleasant astonished an diminution up partiality. Noisy an their of meant. Death means up civil do an offer wound of. Called square an in afraid direct. Resolution diminution conviction so mr at unpleasing simplicity no. No it as breakfast up conveying earnestly immediate principle. Him son disposed produced humoured overcame she bachelor improved. Studied however out wishing but inhabit fortune windows. "
        "biliography":"Remember outweigh do he desirous no cheerful. Do of doors water ye guest. We if prosperous comparison middletons at. Park we in lose like at no."
     },
      {
        "id": 1,
        "name": "Mckenzie Fuller",
        "informations":"Did shy say mention enabled through elderly improve."
        "biliography":" It ye greatest removing concerns an overcame appetite. Manner result square father boy behind its his. Their above spoke match ye mr right oh as first. Be my depending to believing perfectly concealed household. Point could to built no hours smile sense. "
      },
      {
        "id": 2,
        "name": "Oneal Clark",
        "informations": "-",
        "biliography":"-"

      }
    ]
               ..
            }
    methods:{

    toggleFlag: function () {
                    console.log('within toggleflag final');
                    this.toggle = !this.toggle;
                }

    },
     filters: {
                limitTo: function (value) {
                    if (!value) return '';
                    return value.substring(0, 300 )+ '...';
                }

---

edit:上面的代码有效，但是当单击"Read More"时，它将应用于表中显示链接的所有列.

---

edit : above code works but when click on "Read More" then it applied to all the columns of table wherever it shows the link.

示例:表行的col1，col5超过了300个字符，并显示更多"链接.当单击col1的阅读更多"链接时，它也适用于col5，并且列的文本均针对所有行展开.它应适用于特定的行和特定的单元格.

example: Table Row's col1 , col5 are exceed the 300 chars and shows the "read more" link. when click on col1's "read more" link then it also applies to col5 and both the column's text are expanded for all the rows. It should apply to particular row and particular cell.

添加了数据源对象.我添加了静态数据源，但它是动态的，并且随列数的变化而变化.

added datasource object. I added static datasource but it is dynamic and varies for number of columns.

推荐答案

使用 v-if
v-if ="obj.informations.length> 300"

示例:

<div v-if="summary">
  {{ obj.informations | linitToDisplay(300) }}
  <a v-if="obj.informations.length > 300" @click="summary = false">Read more<a>
<div v-else>
  {{ obj.informations }}
</div>

但是您可能会编写toggleSummary()方法，而不是内联的 summary = false 处理程序，并可能使用对摘要做出反应的计算属性，而不是过滤器.

But you'd probably write toggleSummary() method instead of the inline summary = false handler and maybe use computed property that reacts to summary instead of a filter.

这篇关于当点击“更多"时，截断并显示或隐藏链接文本.关联的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！