我在发布json数据时遇到问题,因为我不知道如何在ajax回发期间删除其中一个json节点(在本例中为ServiceOptions)。
首先这是我的HTML:
<h3>Company Profile:</h3>
<ol style="list-style:none;">
<li>
Company Name<br />
<input id="CompanyName" type="text" data-bind="value:CompanyName" />
</li>
<li>
Service Type<br />
<select id="ServiceType" data-bind="options:ServiceOptions,optionsText:'text',optionsValue:'value',value:ServiceType,optionsCaption:'Choose....'">
</select>
</li>
<li>
Street<br />
<input id="Street1" type="text" data-bind="value:Street1" /><br />
<input id="Street2" type="text" data-bind="value:Street2" /><br />
<input id="Street3" type="text" data-bind="value:Street3" />
</li>
<li>
Suburb<br />
<input id="Suburb" type="text" data-bind="value:Suburb" />
</li>
<li>
Post Code<br />
<input id="PostCode" type="text" data-bind="value:PostCode" />
</li>
<li>
State<br />
<input id="State" type="text" data-bind="value:State" />
<li>
Telephone<br />
<input id="Telephone" type="text" data-bind="value:Telephone" />
</li>
<li>
Fax<br />
<input id="Fax" type="text" data-bind="value:Fax" />
</li>
<li>
Status <input id="IsActive" type="checkbox" data-bind="checked: IsActive" />
</li>
<li>
<button data-bind="click:Update_Click">Update</button>
<button data-bind="click:Delete_Click">Delete</button>
</li>
</ol>
我的javascript是:
var model = function () {
var self = this;
self.CompanyName = ko.observable('');
self.ServiceType = ko.observable();
self.ServiceOptions = ko.observableArray(
[
{ value: 0, text: 'Dry Cleaning' },
{ value: 1, text: 'Dog Walking' }
]
);
self.Street1 = ko.observable('');
self.Street2 = ko.observable('');
self.Street3 = ko.observable('');
self.Suburb = ko.observable('');
self.PostCode = ko.observable('');
self.State = ko.observable('');
self.Telephone = ko.observable('');
self.Fax = ko.observable('');
self.IsActive = ko.observable(false);
this.Update_Click = function () {
alert(ko.toJSON(self));
};
this.Delete_Click = function () {
alert('delete');
};
};
$(document).ready(function () {
ko.applyBindings(new model);
});
当我点击更新按钮时,我正在
“CompanyName”:“”,“ServiceOptions”:[{“value”:0,“text”:“Dry Cleaning”},{“value”:1,“text”:“Dog Walking”}], “Street1”: “”, “STREET2”: “”, “Street3”: “”, “郊区”: “”, “邮编”: “”, “国家”: “”, “电话”: “”,”传真 “:””, “IsActive”:假}
我仍在获取ServiceOptions,您可以在上面的JSON结果中看到。
知道怎么解决吗?
答案 0 :(得分:3)
ko.toJSON
在内部使用JSON.stringify
,您可以在其中指定replacer funciton。在此替换器函数中,您需要返回undefined
以获取您不想包含在最终JSON中的键(属性名称):
this.Update_Click = function () {
alert(ko.toJSON(self, function(key, value) {
if (key == "ServiceOptions")
return undefined;
return value;
}));
};