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POWhy knockoutjs js doesn't update view in case some sub array is changed
 

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  1. POWhy knockoutjs js doesn't update view in case some sub array is changed
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    <p>I have next model wirt sub array</p> <pre><code>&lt;!-- ko foreach: {data: userAdminView.viewRoles, as: 'rrole'} --&gt; &lt;tr&gt; &lt;td class="userRolesRoleTitle"&gt;&lt;b data-bind="text: rrole.role.name"&gt;&lt;/b&gt;&lt;br/&gt;&lt;i data-bind="text: rrole.role.description"&gt;&lt;/i&gt;&lt;/td&gt; &lt;td class="userRolesRoleGroups"&gt; &lt;!-- ko foreach: {data: rrole.role.groups, as: 'group'} --&gt; &lt;div class="usersGroupElement" data-bind="html: group.viewName"&gt;&lt;/div&gt; &lt;!-- /ko --&gt; &lt;a class="btn emb green" data-bind="click: userAdminView.addNewGroup,visible:(rrole.role.isNewGroupAccessible) , attr: { value: rrole }"&gt;&lt;i class="icon16 plus"&gt;&lt;/i&gt;add&lt;/a&gt; &lt;/td&gt; &lt;/tr&gt; &lt;!-- /ko --&gt; </code></pre> <p>it working well, but from bussines needs I need change dynamictly data in <strong>rrole.role.groups</strong> sub-array. My code is working and do it, I see that array is changed (added, remove element) in debug mode, but view is updated only if <strong>userAdminView.viewRoles</strong> array get changes. Why knockoutjs dos't mange it. How I can fix it ?</p> <pre><code>function userAdminView(user) { var self = this; self.viewRoles = ko.observableArray([]); self.saveNewGroup = function (data, event) { var datar = self.viewRoles(); $.each(datar, function (index, vrole) { if (vrole.role.id == self.dialogRole.role.id) { var line = { viewName: "&lt;b&gt;" + self.dialogCustomer.name + "&lt;/b&gt;", customer: self.dialogCustomer, department: self.dialogDepartment, isEdit: true }; if (vrole.role.groups == null) { vrole.role.groups = []; } vrole.role.groups.push(line); } }); }; } </code></pre> <p>data structure:</p> <pre><code>{ role: { description: role.description, id: role.id, name: role.name, groups: existingGroups, isNewGroupAccessible: self.canGrant(role, data.d) } }; </code></pre> <p>Thanks. </p>
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