Display or conceal <tr> elements according to various <select> boxes using angularjs

My current setup includes a multiple select box as shown below

<select multiple name="transActionGroup" id="transActionGroup" ng-multiple="true" ng-model="transActionGroup" title="Hold CTRL to select more than one transaction type.">
    <option value="None">None</option>
    <option value="Custom Group">Custom Group</option>
    <option value="ACH Credits">ACH Credits</option>
    <option value="ACH Debits">ACH Debits</option>
</select>

What I aim to achieve is to display a hidden <tr> element only when the user chooses 'Custom Group' from the select box above

This is the <tr> element in question

<tr id="custTransGrp" ng-if="transActionGroup === 'Custom Group'">
    <td class="label-cell"> * Custom Group(s) : </td>
    <td>
        <input type="text" ng-model="customTransActionGroup" name="customTransActionGroup" id="customTransActionGroup" />
    </td>
</tr>

I attempted to use

ng-if="transActionGroup === 'Custom Group'"

to make this work, but unfortunately, it did not have the desired effect

javascriptangularjs

Answer №1

It appears that your ngModel is stored as an array, which means a simple check using === won't work.

Instead, you should utilize

Array.prototype.indexOf():

<tr id="custTransGrp" ng-if="transActionGroup && transActionGroup.indexOf('Custom Group') != -1">

or you could try:

Array.prototype.includes() (Don't forget to check browser compatibility):

<tr id="custTransGrp" ng-if="transActionGroup.includes('Custom Group')">

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