HTML5 Input Tag Attributes
HTML5 introduces several new attributes to the <input> tag. These attributes make it easier to create forms and set automatic validation.
Below is a list of all the new attributes for the <input> tag and their values.
| Attribute | Value | Description |
| autocomplete | on off |
Specifies whether or not the the input field should have autocomplete enabled. |
| autofocus | autofocus | Specifies that the input field should have focus on page load (not for type=”hidden”) |
| form | formname | Specifies one or more forms the input field belongs to |
| formaction | URL | Overrides the form’s action attribute. Must be a valid URL that defines where to send the data when the form is submitted (for type=”submit” and type=”image”) |
| formenctype | application/x-www-form-urlencoded multipart/form-data text/plain |
Overrides the form’s enctype attribute. Specifies how form-data should be encoded before sending it to the server (for type=”submit” and type=”image”) |
| formmethod | get post |
Overrides the form’s method attribute. Defines the HTTP method for sending data to the action URL (fo type=”submit” and type=”image”) |
| formnovalidate | formnovalidate | Overrides the form’s novalidate attribute. If present the input field should not be validated when submitted |
| formtarget | _blank _self _parent _top framename |
Overrides the form’s target attribute. Specifies the target window used when the form is submitted (for type=”submit” and type=”image”) |
| height | pixels % |
Defines the height of an input (for type=”image”) |
| list | datalist-id | Refers to a datalist containing predefined options for the input field |
| max | number date |
Specifies the input field’s maximum value. Use together with the “min” attribute to create a range of legal values |
| min | number date |
Specifies the input field’s minimum value. Use together with the “max” attribute to create a range of legal values |
| multiple | multiple | If present the user is allowed more than one value |
| pattern | regexp_pattern | Specifes a pattern or format for the input field’s value. Example: pattern=”[0-9]” means that the input value must be a number between 0 an 9 |
| placeholder | text | Specifies a hint to help users fill out the input field |
| required | required | Indicates that the input field’s value is required in order to submit the form. |
| step | number | Specifies the legal number intervals for the input field |
| width | pixels % |
Specifies the width of an input (for type=”image”) |
August 13th, 2011 at 12:49 am
There is one at least one validation rule missing from this set:
1.Dependent: this element’s value is dependent on an expression composed of constants and values of other elements; the expression follows javascript syntax.
This validation rule was used for what I called cross validation.
2.Setting of the formnovalidte upon the truth of an expression or a regexp_pattern.
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