Bootstrap twitter 3.0和knockoutjs驗證

Question

使用Twitter Bootstrap驗證類，例如需要將has-error或has-warning放在包裝form-group元素上，以便對輸入元素和它的標籤進行樣式設置。但是Knockout-Validation會將該類添加到輸入元素中。

<div class="form-group has-error"> 
    <label class="control-label">Input with error</label> 
    <input type="text" class="form-control"> 
</div> 

是否有可能配置淘汰賽驗證的，因爲它增加了類的div，而不是input的方法嗎？

Answer 1

bringking的答案並沒有讓你一路走到那裏。您還需要指定errorMessageClass和decorateInputElement選項。

ko.validation.init({ 
 
    errorElementClass: 'has-error', 
 
    errorMessageClass: 'help-block', 
 
    decorateInputElement: true 
 
}); 
 

 
var viewModel = ko.validatedObservable({ 
 
    name: ko.observable().extend({ 
 
    required: true 
 
    }), 
 
    email: ko.observable().extend({ 
 
    required: true, 
 
    email: true 
 
    }), 
 
    submit: function() { 
 

 
    if (!this.isValid()) { 
 
     this.errors.showAllMessages(); 
 
    } else { 
 
     alert('good job'); 
 
    } 
 
    } 
 
}); 
 

 
ko.applyBindings(viewModel);

<link href="http://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.0.2/css/bootstrap.min.css" rel="stylesheet" /> 
 

 

 
<div class="container"> 
 
    <form class="form-horizontal"> 
 
    <div class="form-group" data-bind="validationElement: name"> 
 
     <label class="control-label col-xs-2" for="name">Name</label> 
 
     <div class="col-xs-10"> 
 
     <input id="name" class="form-control" type="text" data-bind="textInput: name" /> 
 
     </div> 
 
    </div> 
 
    <div class="form-group" data-bind="validationElement: email"> 
 
     <label class="control-label col-xs-2" for="email">Email</label> 
 
     <div class="col-xs-10"> 
 
     <input id="email" class="form-control" type="text" data-bind="textInput: email" /> 
 
     </div> 
 
    </div> 
 
    <div class="form-group"> 
 
     <div class="col-xs-offset-2 col-xs-10"> 
 
     <button type="submit" class="btn btn-primary" data-bind="click: submit">Submit</button> 
 
     </div> 
 
    </div> 
 
    </form> 
 
</div> 
 

 

 
<script src="http://cdnjs.cloudflare.com/ajax/libs/knockout/3.3.0/knockout-min.js"></script> 
 
<script src="http://cdnjs.cloudflare.com/ajax/libs/knockout-validation/2.0.3/knockout.validation.min.js"></script>

Answer 2

你會使用「validationElement」裝訂處理器引導形式div-

<div class="form-group" data-bind="validationElement: someObservable"> 
    <label class="control-label" for="inputSuccess">Input with success</label> 
    <input type="text" class="form-control" id="inputSuccess"> 
</div> 

然後您將設置configuration淘汰賽驗證插件使用引導錯誤類「有錯誤」的。

ko.validation.init({errorElementClass:'has-error'}) 

這是我在我們的工具中執行此操作的方式。

Answer 3

你可以擴展驗證淘汰賽核心是這樣的：

var init = ko.bindingHandlers['validationCore'].init; 
ko.bindingHandlers['validationCore'].init = function (element, valueAccessor, allBindingsAccessor, viewModel, bindingContext) { 
    init(element, valueAccessor, allBindingsAccessor, viewModel, bindingContext); 
    var config = ko.validation.utils.getConfigOptions(element); 
    // if requested, add binding to decorate element 
    if (config.decorateInputElement && ko.validation.utils.isValidatable(valueAccessor())) { 
     var parent = $(element).parents(".form-group"); 
     if (parent.length) { 
      ko.applyBindingsToNode(parent[0], { validationElement: valueAccessor() }); 
     } 
    } 
}; 

該代碼使得父窗體組具有相同類作爲輸入來裝飾。