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HTML CSS JavaScript Appendix
You are here: Reference > JavaScript > client-side > HTML DOM > objects > nodes and tags > iframe

iframe object

Browser support:
Inserts an inline frame.
The iframe element is used to insert another HTML document into the current document.

Syntax:

Properties that reference the object:
•window.frameElement
Methods that return the object:
•document.createElement ("iframe")
The base interface, through which you can add new functionalities to the iframe object, is the HTMLIFrameElement interface.
If you want to see the HTML objects by categories, please visit this page.
HTML page for this element: iframe

Possible members:

 Properties
Methods
Events
Style properties
accessKey
Sets or retrieves an access key to an element.
align
Sets or retrieves the horizontal alignment of an object relative to its parent.
allowTransparency
9
 Sets or retrieves whether a frame element (frame or iframe) can be transparent.
attributes
Represents a collection of attribute nodes that belong to an element.
baseURI
10
 Returns the base URL for the object.
behaviorUrns
Represents a collection of the Uniform Resource Names for all behaviors attached to an element.
canHaveChildren
Retrieves a Boolean value that indicates whether the element can contain child elements.
canHaveHTML
Retrieves a Boolean value that indicates whether the element can contain HTML formatted text.
className
Sets or retrieves the style class or classes that belong to the element.
clientHeight
Returns the height of the visible area for an object, in pixels. The value contains the height with the padding, but it does not include the scrollBar, border, and the margin.
clientLeft
Returns the width of the left border in pixels.
clientTop
Returns the height of the top border in pixels.
clientWidth
Returns the width of the visible area for an object, in pixels. The value contains the width with the padding, but does not include the scrollBar, border, and the margin.
contentDocument
8
 Retrieves the document generated by a frame or iframe element.
contentEditable
3
 Sets or retrieves whether the contents of the object are editable.
contentWindow
Retrieves the window generated by a frame or iframe element.
currentStyle
Represents the computed style settings for an element.
dataFld
Specifies or returns which field of a given data source should be bound to the specified object.
dataFormatAs
Specifies or returns how data is to be rendered.
dataSrc
Sets or retrieves the identifier of the data source that is bound to the element.
dir
Sets or retrieves the text direction as related to the lang property.
disabled
Sets or retrieves the state of an object for user interaction.
filters
Represents a collection of all filter objects applied to an element.
frameBorder
Sets or retrieves whether the frame is surrounded by a 3-D border.
height
Specifies or returns the height of an element.
hideFocus
Specifies or returns whether a dotted rectangle (focus rectangle) is drawn around an object while it has focus.
hspace
Specifies or returns the number of pixels to use as a margin at the left and right sides of the object.
id
Sets or retrieves a unique identifier for the object.
isContentEditable
Returns a Boolean value that indicates whether the contents of the object are editable by the user.
isDisabled
Returns a Boolean value that indicates whether the object is disabled.
isMultiLine
Returns a Boolean value that indicates whether the contents of an element can be multiline or not.
isTextEdit
Returns a Boolean value that indicates whether the createTextRange method can be used for the element.
lang
Specifies or returns the language of the element.
language
Sets or retrieves the scripting language for the current element. Use it only for the script element.
localName
9
 Returns the local part of the qualified name of the current node.
longDesc
Specifies or retrieves the URI (Uniform Resource Identifier) of the long description of a frame, iframe or img element.
marginHeight
Sets or retrieves the top and bottom margins for a frame element.
marginWidth
Sets or retrieves the left and right margins for a frame element.
name
Sets or retrieves the initial name of the contained window.
namespaceURI
93.6
 Sets or returns the namespace URI of the current node.
nextElementSibling
93.5
 Returns a reference to the next child element of the current element's parent.
nextSibling
Returns a reference to the next child of the current element's parent.
nodeName
Returns the name of the current node.
nodeType
Returns an integer that indicates the type of the node.
nodeValue
Sets or returns the value of the current node.
offsetHeight
Returns the height of the visible area for an object, in pixels. The value contains the height with the padding, scrollBar, and the border, but does not include the margin.
offsetLeft
Returns the left position of an object relative to the left side of its offsetParent element, in pixels.
offsetParent
Returns a reference to the closest ancestor element in the DOM hierarchy from which the position of the current element is calculated.
offsetTop
Returns the top position of the object relative to the top side of its offsetParent element, in pixels.
offsetWidth
Returns the width of the visible area for an object, in pixels. The value contains the width with the padding, scrollBar, and the border, but does not include the margin.
outerHTML
Sets or retrieves the outer HTML content (the source code including the opening and closing tags) of an element.
outerText
Sets or returns the text content of an element including the text content of its descendants.
ownerDocument
Returns the document object that contains the current node.
parentElement
Returns the parent element of the object in the DOM hierarchy.
parentNode
Returns the parent element of the current node in the DOM hierarchy.
parentTextEdit
Returns the closest ancestor element of the current element in the DOM hierarchy that can be used to create a TextRange object.
previousElementSibling
93.5
 Returns a reference to the previous child element of the current element's parent.
previousSibling
Returns a reference to the previous node of the current element's parent.
readyState
Returns a string value that represents the state of the object.
recordNumber
Returns an integer value that indicates the ordinal position of the item within the data set that generated the current object.
runtimeStyle
Represents the overridden style settings for an element.
scopeName
Retrieves the local name of the namespace declared for the current element.
scrolling
Sets or retrieves whether a frame has scrollbars.
sourceIndex
Returns the position of the current object in the all collection of the document.
src
Sets or retrieves the location of an associated file for an object.
style
Represents the inline style settings for an element or a CSS rule.
tabIndex
Specifies or returns the tabbing order for keyboard navigation using the TAB key.
tagName
Returns the tag name of the current element.
tagUrn
Sets or retrieves the Uniform Resource Name (URN) of the namespace declared for the current element.
title
Specifies or returns a tooltip for an element.
uniqueID
Returns the unique identifier generated by the browser for the object.
unselectable
Sets or retrieves whether the selection process can start in an element's content.
vspace
Specifies or returns the number of pixels to use as a margin at the top and bottom sides of an object.
width
Specifies or returns the default width of the element.

Example HTML code 1:

This example illustrates the use of the iframe element:
 Code
frame.htm 
<iframe src="frame.htm" width="250px" height="250px"></iframe>
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Example HTML code 2:

This example shows how to access the document of an iframe in JavaScript:
 Code
frame.htm 
<head>
    <script type="text/javascript">
        function SetFrameBGToRed () {
            var italicTag = document.createElement ("i");
            italicTag.innerHTML = "Italic text";

            var frame = document.getElementById ("myFrame");
            var frameDoc = frame.contentWindow.document;
            frameDoc.body.style.backgroundColor = "red";
        }
    </script>
</head>
<body>
    <button onclick="SetFrameBGToRed ()">Set frame background to red</button>
    <iframe id="myFrame" src="frame.htm" width="250px" height="250px"></iframe>
</body>
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Example HTML code 3:

This example shows how to enable content editing in an iframe element:
 Code
editable.htm 
<head>
    <script type="text/javascript">
        var editorDoc;
        function InitEditable () {
            var editor = document.getElementById ("editor");

            if (editor.contentDocument)
                editorDoc = editor.contentDocument;
            else
                editorDoc = editor.contentWindow.document;
            
            var editorBody = editorDoc.body;

                // turn off spellcheck
            if ('spellcheck' in editorBody) {   // Firefox
                editorBody.spellcheck = false;
            }

            if ('contentEditable' in editorBody) {
                    // allow contentEditable
                editorBody.contentEditable = true;
            }
            else {  // Firefox earlier than version 3
                if ('designMode' in editorDoc) {
                        // turn on designMode
                    editorDoc.designMode = "on";                
                }
            }
        }

        function ToggleBold () {
            editorDoc.execCommand ('bold', false, null);
        }
    </script>
</head>
<body onload="InitEditable ();">
    First, write and select some text in the editor.
    <br />
    <iframe id="editor" src="editable.htm"></iframe>
    <br /><br />
    You can toggle the bold/normal state of the selected text with this button:
    <br />
    <button onclick="ToggleBold ();">Bold</button>
</body>
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Related pages:

frameset
frame

External links:

iframe element (MSDN)
iframe element (Safari Reference Library)
iframe element (W3C)
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