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我有一個示例,我試圖檢測選定元素的文本值並將其填充到彈出窗口中。我知道如何使用jQuery來做到這一點,但我不想將Ui意識帶入視圖模型。我知道我錯過了一些簡單的東西,但是有人可以解釋我需要做什麼來綁定UI中選定元素的文本值,並將其綁定到Knockout中的另一個可觀察元素。如何基於選定/單擊元素設置可觀察值
全部工作JsFiddle
減這裏的CSS是HTML和JS,我已經迷上了迄今爲止
<ul data-bind="foreach: items">
<li class="divContainer"> <span title="filename" class="tbox" data-bind="text: name, click: $root.openControl "></span>
<span title="description" class="tbox" data-bind="text: description"></span>
</li>
</ul>
<div id="nameDiv" class="nameContainer"> <span class="smallTitle"></span>
<input type="textbox" class="mytextbox" data-bind="value: currentField" />
<input type="button" id="SaveChange" class="editbtn" value="✔" />
<input type="button" id="CancelChange" class="editbtn" value="✖" />
</div>
JS
var Item = function (name, description) {
this.name = ko.observable(name);
this.description = ko.observable(description);
}
function myViewModel() {
var self = this;
//sample list of items
self.items = ko.observableArray([
new Item('item 1', ' item 1 Description'),
new Item('item 2', 'item 2 Description'),
new Item('item 3', 'Report3 Description'),
new Item('item 4', 'Report4 Description')]);
//observable fields
self.currentField = ko.observable("");
//bind current item text to field
self.openControl = function() {
self.currentField($(this)); ///Here I need to pick up the text of the item that was clicked on
};
};
ko.applyBindings(new myViewModel());
function positionDiv(x_pos, y_pos) {
var d = document.getElementById('nameDiv');
d.style.display = 'none';
d.style.position = 'absolute';
d.style.left = x_pos + 'px';
d.style.top = y_pos + 'px';
$('#nameDiv').fadeIn('slow');
}
$('.tbox').click(function() {
var myText = $(this);
var t = $(this).attr('title');
if (t === 'filename') {
$('.smallTitle').text('Enter new filename');
} else {
$('.smallTitle').text('Enter new description');
}
displayEditBox(myText);
});
function displayEditBox(myText) {
//determine middle of span element
var offset = myText.offset();
var width = myText.width();
var height = myText.height();
var centerX = offset.left + width + 5;
var centerY = offset.top - 10;
positionDiv(centerX, centerY);
}
$('#CancelChange').click(function() {
$('#nameDiv').fadeOut('fast');
clearField($('.mytextbox'));
});
function clearField(field_name) {
field_name.val('');
}
由於提前,