html-input

问题 The default maximum length for a HTML input ( <input type="text"> ) is 524288 characters. That seems like a very peculiar number, why was it chosen? 回答1: According to the w3c the maximum value is unlimited: maxlength = number [CN] When the type attribute has the value "text" or "password", this attribute specifies the maximum number of characters the user may enter. This number may exceed the specified size, in which case the user agent should offer a scrolling mechanism. The default value

问题 I have a mobile website and it has some HTML input elements in it, like this: <input type="text" name="txtAccessoryCost" size="6" /> I have embedded the site into a WebView for possible Android 2.1 consumption, so that it will also be an Android application. Is it possible to get the keyboard with numbers instead of the default one with letters when this HTML input element is focused? Or, is it possible to set it for the whole application (maybe something in the Manifest file), if it is not

问题 I have a PHP script that will generate <input> s dynamically, so I was wondering if I needed to filter any characters in the name attribute. I know that the name has to start with a letter, but I don't know any other rules. I figure square brackets must be allowed, since PHP uses these to create arrays from form data. How about parentheses? Spaces? 回答1: The only real restriction on what characters can appear in form control names is when a form is submitted with GET "The "get" method

问题 This question already has answers here : How to set input type date's default value to today? (31 answers) Closed 7 months ago . I have tried (JSFiddle): <input type="date" value="2012-3-23"> but it doesn't work, how can I set the default value? 回答1: The date should take the format YYYY-MM-DD . Single digit days and months should be padded with a 0. January is 01. From the documentation: A string representing a date. Value: A valid full-date as defined in [RFC 3339], with the additional

问题 I made an HTML page that has an <input> tag with type="text" . When I click on it using Safari on iPhone, the page becomes larger (auto zoom). Does anybody know how to disable this? 回答1: The browser will zoom if the font-size is less than 16px and the default font-size for form elements is 11px (at least in Chrome and Safari). Additionally, the select element needs to have the focus pseudo-class attached. input[type="color"], input[type="date"], input[type="datetime"], input[type="datetime

问题 It's strange. Input number is a standard for W3C, but it doesn't work on Firefox yet. Is there some trick for using input number on Firefox? 回答1: It's a proposed standard, not a standard. There's a difference. There's no trick to it; it's just not supported yet on desktop Firefox (FirefoxOS and Firefox on Android may have an implementation; it's not clear to me whether they do). 回答2: You can see current traction here: https://bugzilla.mozilla.org/show_bug.cgi?id=344616 来源： https:/

问题 Is there an easy way to implement a typeahead using Polymer's <paper-input> element? The HTML <datalist> tag seems to implement that for normal <input> tags and I could dynamically update the data list using templates. However, this does nothing: <paper-input label="Topic" list="dl"> </paper-input> <datalist id="dl"> <option>a</option> <option>aa</option> <option>aaa</option> <option>ab</option> </datalist> 回答1: Besides the fact you misuse options, <datalist id="dl"> <option value='a'><

问题 I'm building an HTML based app for querying imported CSV file using AlaSQL. I started with this demo and tried to implement the same behavior by setting the onChange event through JQuery rather than in the tag. I basically follow the same pattern, and naively pass the event forward to the loadFile method. Alternatively, I tried just handling the alasql request right in the callback. html: <input id="with-jquery" name="with-jquery" type="file" /> javascript: $('#with-jquery').on('change',

问题 I have a scenario where the HTML input field must take only 16 digit where 6 of its digits will be allocated for decimal places, but one strange thing happend in the code below is, when I add "0" at the end of decimal values, the digits are not being restricted and it keeps increasing. Is there anything that I'm missing out here? <input type="number" name="val" min=0 max=9999999999.999999 step=".000001" save="" oninput="validity.valid ? this.save = value : value = this.save;" 回答1: Resolved

问题 I have two properties in a model class: public int? IntTest { get; set; } public decimal? DecimalTest { get; set; } Which I then render with: @Html.EditorFor(model => model.IntTest, new { htmlAttributes = new { @class = "form-control"} }) @Html.EditorFor(model => model.DecimalTest, new { htmlAttributes = new { @class = "form-control"} }) I'd expected both of them to render as html inputs of type number, but the decimal one doesn't, I get: <input class="form-control text-box single-line" data