name-attribute | 易学教程

Using jQuery validator plugin, how to use dynamically created name attributes to assign rules?

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问题 Here's the problem: The ecommerce system we uses generates a line item for each product purchased. It gives line item's quantity input the name attribute "qty0", "qty1", "qty2", and so on as the line items go down the page. I need to check these qtyX inputs for validity, but I don't know how to pass either the name attribute as a relative attribute of another attribute like a class, or pass a regex to the validate plugin to find all the quantity fields. Here's the validate code: var validator

Make Jquery validation plugin work on inputs with no name attribute

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问题 Well it took me long enough to find out that the JQuery form validation plugin only works on fields with a "name" attribute. Anyway, I use it to make all the fields required. My problem is that at some point, I have one text input <div id='choices'> <input type='text' /> </div> <a href='#' id='add-choice' >Add input </a> the user can add as many text inputs as he wants : $("#add-choice").live("click",function(){ $("#choices").append("<input type='text' /><br>"); }); And I want these new

PHP creating an array from form input fields [closed]

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问题 It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 7 years ago . I'm trying to create an array to store numbers and add them together. <input type="number" name="numbers[]"/> I'm getting an undefined variable on the following line foreach($numbers as $number) I'm sure this is

Make Jquery validation plugin work on inputs with no name attribute

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Well it took me long enough to find out that the JQuery form validation plugin only works on fields with a "name" attribute. Anyway, I use it to make all the fields required. My problem is that at some point, I have one text input <div id='choices'> <input type='text' /> </div> <a href='#' id='add-choice' >Add input </a> the user can add as many text inputs as he wants : $("#add-choice").live("click",function(){ $("#choices").append("<input type='text' /><br>"); }); And I want these new fields to be also required. Even if I give a name to the first input. What should I do for the new inputs

JQuery-Validation - using rules method on selected ID, why does the name attribute have to be present on the element?

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问题 I'm a little confused about the JQuery validation plugin behavior. If I have the following JQuery: $('#form1').validate({ /* other validation */ }); $('#txt1').rules("add", { required: true, messages: { required: 'This is required!' } }); and the following text input, with an id but no name attribute: <input type="text" id="txt1"/> No required message pops up on the text box. However, if I add a name attribute: <input type="text" id="txt1" name="anything"/> It validates it just fine. Why is

JQuery-Validation - using rules method on selected ID, why does the name attribute have to be present on the element?

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I'm a little confused about the JQuery validation plugin behavior. If I have the following JQuery: $('#form1').validate({ /* other validation */ }); $('#txt1').rules("add", { required: true, messages: { required: 'This is required!' } }); and the following text input, with an id but no name attribute: <input type="text" id="txt1"/> No required message pops up on the text box. However, if I add a name attribute: <input type="text" id="txt1" name="anything"/> It validates it just fine. Why is that? Since I'm using the rules("add", rules) method on an ID selector, why does it need the name

In WPF, what are the differences between the x:Name and Name attributes?

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问题 The title says it all. Sometimes it seems that the Name and x:Name attributes are interchangeable. So, what are the definitive differences between them, and when is it preferable to use one over the other? Are there any performance or memory implications to using them the wrong way? 回答1: There really is only one name in XAML, the x:Name . A framework, such as WPF, can optionally map one of its properties to XAML's x:Name by using the RuntimeNamePropertyAttribute on the class that designates