Note : Both Netscape and
Internet Explorer support the Forms collection (Netscape
call it an array). For properties, methods and events that are supported
<FORM> elements, see the
The Forms collection is an ordered, indexed (in document source order) array,
containing a reference to every
<FORM> element in a document.
Discrete form objects would normally be retrieved by their index in the Forms
collection (for example
document.forms(0) contains a reference
to the first
<FORM> element in the document), but a string
value can be used, as long as that string is a valid identifier
NAME attribute value) for a
<FORM> in the document.
both identify the same
<FORM> in the document. The first
method makes scripts easier to read and understand though. It also allows
the form name to be held in a variable or built dynamically.
length property returns the number of forms in the collection
(and therefore the document). Note that the
length count starts
at 1, not 0 as the forms collection index does. Therefore, the
length property may return a value of 5, but to access the 4th
form, you'd need to use
item method retrieves single items, or sub-collections from
the all collection. It accepts the following arguments:
index is a number, then the method returns a reference to
the form object at that position in the forms collections index. I.e.
strTag equal to the
of the documents 3rd
<FORM> element. As you can see, this
is effectively the long-hand version of using
index property is a string value, then the
item method returns a sub-collection, containing a reference
to every element in the document that has its
NAME attribute set to the string contained in the
index argument. To retrieve certain element objects from this
sub-index argument must be used.
© 1995-1998, Stephen Le Hunte
|file: /Techref/language/html/ib/Scripting_Reference/formcol.htm, 3KB, , updated: 2008/3/18 09:52, local time: 2020/2/19 10:47,
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