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HTML <form> tag
Syntax
<form> - </form>
Definition and Usage
The FORM
tag acts as a container for controls.
It specifies:
- The layout of the form (given by the contents of the element).
- The program that will handle the completed and submitted form (the action
attribute). The receiving program must be able to parse name/value pairs in
order to make use of them.
- The method by which user data will be sent to the server (the method
attribute).
- A character encoding that must be accepted by the server in order to
handle this form (the accept-charset
attribute). User agents may advise the user of the value of the accept-charset
attribute and/or restrict the user's ability to enter unrecognized
characters.
A form can contain text and markup (paragraphs, lists, etc.) in addition to form
controls.
Required Attributes
| Attribute |
Value |
Description |
| action |
URI |
An URL, a CGI script or JAVA servlet that defines where
to send the data when the submit button is pushed |
Optional Attributes
| Attribute |
Value |
Description |
| accept |
list of contenttypes |
This attribute specifies a comma-separated list of
content types that a server processing this form will handle correctly.
User agents may use this information to filter out non-conforming files
when prompting a user to select files to be sent to the server |
| accept-charset |
charset_list |
A comma separated list of possible character sets for the
form data. The default value is "unknown" |
| enctype |
mimetype |
The mime type used to encode the content of the form |
| method |
get
post |
This attribute specifies which HTTP method will be used
to submit the form data set
get: With the HTTP "get" method, the form data set is appended
to the URI specified by the action attribute
(with a question-mark ("?") as separator) and this new URI is
sent to the processing agent.
post: With the HTTP "post" method, the form data set
is included in the body of the form and sent to the processing agent.
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| name |
form_name |
Defines a unique name for the form |
| target |
_blank
_self
_parent
_top |
Defines the location of the target URI.
- _blank renders the response in a new, unnamed window
- _self renders the response in the current frame
- _parent renders the response in the immediate frameset parent
- _top renders the response in the full, unframed window
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Standard Attributes
| id, class, title, style, dir, lang, xml:lang |
For a full description, go to Standard
Attributes.
Event Attributes
| onsubmit, onreset, onclick, ondblclick, onmousedown,
onmouseup, onmouseover, onmousemove, onmouseout, onkeypress, onkeydown,
onkeyup |
For a full description, go to Event Attributes.
Example
| Source |
Output |
<form action="test.htm" method="GET"
target="_new">
<p><input type="text" name="email" size="10" value="email@">
<input type="submit" value="Subscribe" name="B1"></p>
</form>
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