Adjust the appearance of the initial row within a table

Is there a way to directly change the CSS style of the first row in a table when a checkbox is checked? I am facing an issue where the style does not apply correctly, and I need assistance in targeting the first row specifically with CSS.

Essentially, every time a checkbox is checked, the header row of my table should turn blue, and if it is unchecked, it should revert to its original color.

This is what I have tried:

<div class="col-md-3">
  <label class="checkbox-inline control-label col-md-10"><input v-model="hasHeader" type="checkbox">Header Row?</label>
</div>



 <table class="table table-responsive">
    <tbody>
      <tr v-for="(row,idx1) in tableRows" :class="{headerRowDefault: checkHeader}">
        <td class="table-success" v-for="(col,idx2) in tableCols"><input v-model="table.tableGrid[idx1][idx2]" type="text" class="borderTbl" value="HEY"></td>
      </tr>
    </tbody>
  </table>

My computed method for checkHeader:

checkHeader (idx2) {
      alert('CHECKHEADER')
      if (this.hasHeader === true && idx2 === 0) {
        return true
      } else {
        return false
      }
    }

Is there a way to trigger the style change on the first row based on the checkbox? While I can manually apply a CSS style to the first row, I am looking for a dynamic solution. Any suggestions would be appreciated.

Answer №1

Here is a sample code snippet that demonstrates how to achieve the desired outcome.

console.clear()

new Vue({
  el: "#app",
  data:{
    tableRows:[1,2,3,4,5],
    tableCols: [1,2,3],
    hasHeader: false
  },
  methods:{
    checkHeader (rowIndex) {
      if (this.hasHeader === true && rowIndex === 0) {
        return true
      } else {
        return false
      }
    }
  }
})
.headerRowDefault{
  background-color: blue;
}
<link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="dfa9aaba9fedf1ebf1ed">[email protected]</a>"></script>
<div id="app">
  <div class="col-md-3">
    <label class="checkbox-inline control-label col-md-10"><input v-model="hasHeader" type="checkbox">Header Row?</label>
  </div>

  <table class="table table-responsive">
    <tbody>
      <tr v-for="(row,idx1) in tableRows" :class="{headerRowDefault: checkHeader(idx1)}">
        <td class="table-success" v-for="(col,idx2) in tableCols">{{idx2}}</td>
      </tr>
    </tbody>
  </table>
</div>

Please note that the data in this example is fabricated and may not accurately represent actual values for tableRows and tableCols.

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