绑定在jquery .html()附加后无效 [英] Bindings are not working after jquery .html() append
问题描述
我有这个简单的div:
< div id =mainContent>
< / div>
,它是空的。现在我试图将这个 HTML
追加到上面的div中:
< div id =mainContent>
< label>项目名称< / label>
< input type =textid =projectNamedata-bind =value:projectName/>
< label> Tracker Name< / label>
< input type =textid =trackerNamedata-bind =value:trackerName/>
< / div>
< button type =submitdata-bind =click:submitNewProject> Submit< / button>
通过使用:
$ .ajax({
类型:'POST',
url:'newTracker.php',
dataType:'html',
成功:函数(data){
$(#mainContent).html(data);
},
error:function(XMLHttpRequest,textStatus,errorThrown){
alert('Something错误!');
}
});
data
是 HTML
我试图通过以下方式分配: $(#mainContent)。html(data);
首先看起来一切看起来很漂亮,但有一个问题 - 绑定不起作用。
我的意思是在新分配 HTML
我有一个按钮应该调用viewmodel函数,但它不... ...
BUT如果我将代码直接放在div的内部,那么绑定就像一个魅力一样。
为什么当我分配新的<$ c $时,我的出价不起作用c> HTML 代码里面的代码?我知道我在这里错过了一些非常小而基本的东西,但我无法发现它。
编辑:
按钮事件:
submitNewProject = function(){
console.log(submit new project );
};
如果DOM已更改,则无法跟踪新创建的元素使用Ajax方法,您必须将视图模型显式绑定到新创建的元素。
类似于:
$。ajax({
type:'POST',
url:'newTracker.php',
dataType:'html',
success:function(data){
var $ mainContent = $(#mainContent);
$ mainContent.html(data);
var existingViewModel = ko .dataFor(document.body);
ko.applyBindings(existingViewModel,$ mainContent.get(0));
},
error:function(XMLHttpRequest,textStatus,errorThrown){
alert('Something is wrong!');
}
});
I have this simple div:
<div id="mainContent">
</div>
and it's empty. Now I'm trying to append this HTML
to the above div:
<div id="mainContent">
<label>Project Name</label>
<input type="text" id="projectName" data-bind="value: projectName"/>
<label>Tracker Name</label>
<input type="text" id="trackerName" data-bind="value: trackerName"/>
</div>
<button type="submit" data-bind="click: submitNewProject">Submit</button>
By using:
$.ajax({
type : 'POST',
url : 'newTracker.php',
dataType : 'html',
success : function(data){
$("#mainContent").html(data);
},
error : function(XMLHttpRequest, textStatus, errorThrown) {
alert('Something is wrong!');
}
});
Where data
is the HTML
I'm trying to assign by: $("#mainContent").html(data);
At first look everything looks pretty, but there is a problem - the bindings are not working.
What I mean is that in the newly assigned HTML
I have a button supposed to call a viewmodel function, but it does not...
BUT if I place the code directly inside of the div the bindings are working like a charm.
Why my bidings are not working when I'm assigning a new HTML
code inside of the div? I know that I'm missing something really small and basic here, but I can't spot it.
EDIT:
Button event:
submitNewProject = function(){
console.log("submit new project");
};
Knockout cannot track newly created elements, if your DOM changed using Ajax methods you'll have to explicitly bind a view-model to the newly created elements.
Something like:
$.ajax({
type: 'POST',
url: 'newTracker.php',
dataType: 'html',
success: function (data) {
var $mainContent = $("#mainContent");
$mainContent.html(data);
var existingViewModel = ko.dataFor(document.body);
ko.applyBindings(existingViewModel, $mainContent.get(0));
},
error: function (XMLHttpRequest, textStatus, errorThrown) {
alert('Something is wrong!');
}
});
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