我从这开始:
<script src="/Scripts/jquery-1.6.2.min.js" ...
<script src="/Scripts/knockout-1.2.1.debug.js" ...
<script src="/Scripts/knockout.mapping-latest.js" ...
<script src="/Scripts/jquery.unobtrusive-knockout.min.js" ...
然后我从服务器中提取一个扁平的JSON对象,并将找到的每个属性绑定到DOM中的匹配元素:
$.ajax({
url: '/GetRecord',
type: 'POST',
dataType: 'json',
data: JSON.stringify(requestObject),
contentType: 'application/json; charset=utf-8',
success: function (data) {
// Clear the current view model
VM.Items.length = 0;
// only one item coming from server
VM.Items[0] = ko.mapping.fromJS(data.BlankItem);
// for each property found, bind it to the matching DOM element
$.each(VM.Items[0], function (indexInArray, valueOfElement) {
var attrName = indexInArray;
// skip over things not an accessor (get/set property function)
if( typeof valueOfElement == "function")
{
var attrValue = valueOfElement();
// if it's a checkbox, bind the checked attribute
var a = $('input[name="' + attrName + '"][type="checkbox"]');
if (a.length)
a.dataBind({ checked: attrName });
// if it's a radio, bind all the found radio checked attributes
var b = $('input[name^="' + attrName + '"][type="radio"]');
if (b.length)
b.dataBind({ checked: attrName });
// if it's a text, bind the text attribute
var c = $('input[name="' + attrName + '"][type="text"]');
if (c.length)
c.dataBind({ text: attrName }); // <--- Error (use value)
}
});
// Then set knockout loose
ko.applyBindings( VM.Items[0] );
}
});
导致错误:
未捕获错误:NO_MODIFICATION_ALLOWED_ERR:DOM例外7
ko.bindingHandlers.updateknockout-1.2.1.debug.js:1577
invokeBindingHandlerknockout-1.2.1.debug.js:1231
ko.applyBindingsToNode.ko.dependentObservable。
disposeWhenNodeIsRemovedknockout-1.2.1.debug.js:1268
evaluateknockout-1.2.1.debug.js:927个
ko.dependentObservableknockout-1.2.1.debug.js:965个
ko.applyBindingsToNodeknockout-1.2.1.debug.js:1252
ko.applyBindingsknockout-1.2.1.debug.js:1284
ko.utils.arrayForEachknockout-1.2.1.debug.js:48个
ko.applyBindingsknockout-1.2.1.debug.js:1283
$ .ajax.successPropertyForm:266个
f.extend._Deferred.e.resolveWithjquery-1.6.2.min.js:16个
wjquery-1.6.2.min.js:18个
f.support.ajax.f.ajaxTransport.send.d
我没有看到它绑定任何它不应该的项目。此外,html中没有声明性的敲除绑定。我做错了什么?
答案 0 :(得分:119)
OMG。答案是使用正确的绑定属性。而不是text
,输入为value
!
答案 1 :(得分:1)
就我而言,问题在于我数据绑定到文本而不是值。
bad:&lt; input type =“text”data-bind =“text:id”maxlength =“3”style =“width:100%;” /&GT;
good:&lt; input type =“text”data-bind =“value:id”maxlength =“3”style =“width:100%;” /&GT;
答案 2 :(得分:0)
当我多次无意中拨打ko.applyBindings(viewModel)
时,我也在Chrome中看到了这个错误。