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POKnockout fires change event when select list initializing
 

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  1. POKnockout fires change event when select list initializing
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    <p>I'm having a issue with knockout select list binding, My problem is I'm having a list of items, that contains description,key and editable. using the list of items I'm populating the select box.</p> <pre><code> var RequiredItemLine = function () { var self = this; self.desc = ko.observable(); self.key = ko.observable(); self.editable = ko.observable(false); self.requireditemsdata = ko.observableArray([ { desc: "Boarding of exposed wall openings in the vicinity of ...", key: "233", editable: true }, { desc: "Call in manufacturers to initiate repairs on ...", key: "242", editable: true }, { desc: "Call in specialist restorers/recoverers for ...", key: "244", editable: true }, { desc: "Dispatch items for repair (schedule enclosed)", key: "243", editable: false }, { desc: "Drying and cleaning of contents comprising ...", key: "240", editable: true }, { desc: "Drying and protective oiling of water affected equipment", key: "241", editable: false }, { desc: "Drying out of the affected areas of the premises", key: "235", editable: false }, { desc: "Removal and repackaging of stock comprising ...", key: "239", editable: true }, { desc: "Removal of agreed vulnerable contents to a place of safety (schedule enclosed) ", key: "236", editable: false }, { desc: "Segregation of affected and unaffected stock comprising ...", key: "238", editable: true }, { desc: "Temporary covering of roof to reinstate water tight integrity ", key: "234", editable: false }, { desc: "Temporary guarding of affected area", key: "237", editable: false }, { desc: "Temporary shoring of affected structure", key: "232", editable: false }]); self.selectedItem = ko.observableArray([]); self.selectedItem.subscribe(function (newValue) { if (newValue) { self.editable(newValue.editable); //alert(newValue.editable); } }); } </code></pre> <p>whenever the user select an options from the select list, it contains the property editable,then the select list has to hide from the DOM and text box has to be visible to DOM and the value has to assigned from the selected desc from the select list.</p> <pre><code> var RequiredItems = function () { var self = this; self.requiredItemSelection = ko.observableArray([]); self.addRequiredItem = function () { self.requiredItemSelection.push(new RequiredItemLine()); }; self.removeRequiredItem = function (line) { self.requiredItemSelection.remove(line); }; } var vm = new RequiredItems(); ko.applyBindings(vm); </code></pre> <p>the problem is whenever the select is loading to the DOM change event is firing and display the select list or the input field. </p> <pre><code> &lt;div class='liveExample' &gt; &lt;button data-bind='click: addRequiredItem'&gt;Add Required Item&lt;/button&gt; &lt;hr /&gt; &lt;table width='100%'&gt; &lt;tbody data-bind='foreach: requiredItemSelection' &gt; &lt;tr&gt; &lt;td &gt; &lt;select data-bind='options: requireditemsdata, optionsText: "desc", value: selectedItem'&gt; &lt;/select&gt; &lt;/td&gt; &lt;td&gt; &lt;a href='#' data-bind='click: $parent.removeRequiredItem'&gt; &lt;img src="../images/Close.gif" /&gt;&lt;/a&gt; &lt;/td&gt; &lt;/tr&gt; &lt;tr data-bind="visible : selectedItem().editable"&gt; &lt;td&gt; &lt;div class="editablecontent" data-bind='html : selectedItem().desc.replace(/\.\.\./g, "&lt;span style=&amp;#39;background-color:#ff77ee;margin-left:-2px;letter-spacing:0.05em&amp;#39; contenteditable &gt;...&lt;/span&gt;")'&gt;&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/tbody&gt; &lt;/table&gt; &lt;ul data-bind='foreach: requiredItemSelection'&gt; &lt;li data-bind="text : selectedItem().desc "&gt;&lt;/li&gt; &lt;/ul&gt; &lt;/div&gt; </code></pre> <p>see the fiddle <a href="http://jsfiddle.net/aroor/VFv4H/3/">http://jsfiddle.net/aroor/VFv4H/3/</a> Note: I dont want to use the optionsCaption binding. is there any way to solve this issue? Or didn't i declare the data structure properly ?</p>
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      1. POKnockout fires change event when select list initializing
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    1. COCan you describe the issue that you are having a little further? Is it that you are seeing the select/input while the page is loading? One trick is to add `data-bind="visible: true" style="display: none"` to a container element and it will be displayed when the page is bound like: http://jsfiddle.net/rniemeyer/VFv4H/4/
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    2. COSorry English is not my first language.The problem is whenever user select the select list, according to the selected item it contain a property called editable, if the editable is true then display the content editable div with the selected desc and hide the select list.
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    3. CO@RPNiemeyer Now i've edited the question, what is in the fiddle. the main purpose is I'm creating a contenteditable div dynamically depend on the selection from the select list.
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