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POKnockout - Checking checkboxes according to observableArray
 

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  1. POKnockout - Checking checkboxes according to observableArray
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    <p>So I have a list of schedules that I need to display for a user and show which schedules he or she is currently on and give them the possibility to jump on and off said schedules.</p> <p>My viewmodel looks like this</p> <pre><code>self = this; self.shifts = ko.observableArray(); self.selectedShifts = ko.observableArray(); //I populate self.shifts here with a WEB API call //Run through each shift and check if current user is on it and set checked / not checked value for checkbox ko.utils.arrayForEach(self.shifts(), function(shift) { //Clear array self.usersOnShift([]); //Populate array with all users on the shift self.usersOnShift = ko.observableArray(WEB API CALL HERE); var userInShift = ko.utils.arrayFirst(self.usersOnShift(), function(user) { if (selectedUserId == user.ID) { return true; } }); if (userInShift) { self.selectedShifts.push(shift.ID); } }); ko.applyBindings(self); </code></pre> <p>My HTML looks like this</p> <pre><code> &lt;div class="simple_overlay" id="shiftOverlay"&gt; &lt;div class="details"&gt; &lt;div data-bind="foreach: shifts"&gt; &lt;div&gt;&lt;span class="staff-initials" data-bind="text:wardName"&gt; &lt;/span&gt;&lt;input type="checkbox" data-bind="value: ID, checked: $root.selectedShifts"/&gt; &lt;/div&gt; &lt;/div&gt; &lt;div&gt; &lt;a href="#" data-bind="click: updateUserOnShifts"&gt;Connect&lt;/a&gt; &lt;a href="#" data-bind="click: closeShiftDialog"&gt;Close&lt;/a&gt; &lt;/div&gt; &lt;/div&gt; &lt;/div&gt; </code></pre> <p>I can see that the value of the checkboxes are set correctly to the ID of the corresponding shifts. However a shift that I know the user in question is on is not checked and I know that the selectedShifts observableArray contains the value.</p> <p>Somehow the "checked: $root.selectedShifts" call / check is not working but I know that it contains the right value. What am I doing wrong? </p>
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    1. USthomasvdb
    1. USMemphis
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    1. COIs `shift.ID` a string or a number?
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      1. USMichael Best
    2. COIt seems strange that `usersOnShift` is an observable and that it's part of the view-model since it's just needed within the loop.
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      1. POKnockout - Checking checkboxes according to observableArray
      1. USMichael Best
    3. COshift.ID is an integer. True that usersOnShift needed not be part of the viewModel. Couldn't issue be in the HTML where I reference the selectedShifts with the $root context?
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      1. USMemphis
 

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