MP Form Element
The <form> element is the container of
form controls. Notice that in the previous XHTML MP example, the <input>
and <select> elements are not enclosed within the <form></form>
tag pair directly. There is an intermediate block-level element, <p>, in
between. This is necessary for conformance to the XHTML MP standard.
We mention about it here since the intermediate block-level element is not necessary
in HTML 4.01 Transitional.
method attribute of the <form> tag specifies which HTTP
method should be used to send the data. Two HTTP methods are available:
POST and GET. To use the HTTP POST method, assign the value "post" to the
method attribute, otherwise assign "get" to the method attribute.
If the HTTP POST method is used, the data to be sent will be placed in the
message body of the request. If the HTTP GET method is used, the data to
be sent will be appended to the URL. Since a URL can only contain a
limited number of characters, the GET method has the disadvantage
that there is a size limit for the data to be sent. If the user data
contains non-ASCII characters, you should make use of the POST method
to avoid encoding problems.
action attribute of the <form> tag specifies the URL to
send the data to.
In the earlier XHTML MP example, the line
<form method="get" action="processing.asp">
instructs the WAP browser to submit the form to "processing.asp"
for processing using the HTTP GET method when the submit button is pressed.
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