Javascript 如何在操作onclick review.save之前验证必填字段
如何在Javascript 如何在操作onclick review.save之前验证必填字段,javascript,jquery,html,Javascript,Jquery,Html,如何在onclick=“review.save();” 在执行此操作之前,是否有javascript来验证所需字段onclick=“review.save(); 这是我的按钮代码 <button type="submit" title="<?php echo $this->__('Place Order') ?>" class="button btn-checkout" onclick="review.save();"><span><span>
onclick=“review.save();”
在执行此操作之前,是否有javascript来验证所需字段onclick=“review.save();
这是我的按钮代码
<button type="submit" title="<?php echo $this->__('Place Order') ?>" class="button btn-checkout" onclick="review.save();"><span><span><?php echo $this->__('Place Order') ?></span></span></button>
您可以创建另一个验证字段的函数,如果成功,则执行save函数 JS HTML
您可以创建另一个验证字段的函数,如果成功,则执行save函数
JS
HTML
要获得详细答案,需要更多的代码。但我想验证部分必须进入review.save()函数。请参阅此项或删除review.save()函数
从按钮。收听表单。提交事件。在处理程序中,执行验证,如果有效,则执行review.save
获取详细答案需要更多代码。但我想验证部分必须进入review.save()
函数。查看此项或删除review.save()
从按钮。收听表单。提交事件。在处理程序中,执行验证,如果有效,执行查看。保存我对JS的了解较少。我对JS的了解较少。
<label class="commentlabel required-entry" for="ordercomment-comment">
<?php echo $survey_question; ?> <em>*</em></label>
<div class="input-box required-entry">
<select class="validate-select" id="socialtype" name="socialtype1" title="<?php echo $survey_question ?>">
<option value=""><?php echo $this->__("- Select -");?></option>
<option value="Friend/Relative/Acquaintance"><?php echo $this->__("Friend/Relative/Acquaintance");?></option>
<option value="Google search"><?php echo $this->__("Google search");?></option>
<option value="Gumtree Advert"><?php echo $this->__("Gumtree Advert");?></option>
<option value="Facebook"><?php echo $this->__("Facebook");?></option>
<option value="Other"><?php echo $this->__("Other");?></option>
</select>
var Review = Class.create();
Review.prototype = {
initialize: function(saveUrl, successUrl, agreementsForm){
this.saveUrl = saveUrl;
this.successUrl = successUrl;
this.agreementsForm = agreementsForm;
this.onSave = this.nextStep.bindAsEventListener(this);
this.onComplete = this.resetLoadWaiting.bindAsEventListener(this);
},
save: function(){
if (checkout.loadWaiting!=false) return;
checkout.setLoadWaiting('review');
var params = Form.serialize(payment.form);
if (this.agreementsForm) {
params += '&'+Form.serialize(this.agreementsForm);
}
params.save = true;
var request = new Ajax.Request(
this.saveUrl,
{
method:'post',
parameters:params,
onComplete: this.onComplete,
onSuccess: this.onSave,
onFailure: checkout.ajaxFailure.bind(checkout)
}
);
},
resetLoadWaiting: function(transport){
checkout.setLoadWaiting(false, this.isSuccess);
},
var validation = {
validate_review : function(){
// do validation
// ...
if(success){
review.save();
}else{
// show error message
}
}
}
<button type="submit" onclick="validation.validate_review ();" title="<?php echo $this->__('Place Order') ?>" class="button btn-checkout"><span><span><?php echo $this->__('Place Order') ?></span></span></button>