Log in
Edit
Tools

thead

< html‎ | elements
Jump to: navigation, search

thead



Summary

The thead tag is used to group header content in an HTML table.


Overview Table

DOM Interface HTMLElement

Examples

The following code example uses the thead' element and the table, tbody, td, and tr elements to create a table that includes the first row in the table header and the second row in the table body. 

<table>
<thead>
  <tr>
    <td>This text is in the table header.</td>
  </tr>
</thead>
<tbody>
  <tr>
    <td>This text is in the table body.</td>
  </tr>
</tbody>
</table>

Notes

Remarks

Valid tags within the THEAD element include:

  • td
  • th
  • tr

You can specify only one thead object specified for any given table object. The table object and its associated elements have a separate table object model, which uses different methods than the general object model.

Standards information


Members

The thead object has these members:

Events

The thead object has these events.

Event Description
onabort Fires when the user aborts the download.
onactivate Fires when the object is set as the active element.
onafterupdate Fires on a databound object after successfully updating the associated data in the data source object.
onbeforeactivate Fires immediately before the object is set as the active element.
onbeforecopy Fires on the source object before the selection is copied to the system clipboard.
onbeforecut Fires on the source object before the selection is deleted from the document.
onbeforedeactivate Fires immediately before the activeElement is changed from the current object to another object in the parent document.
onbeforepaste Fires on the target object before the selection is pasted from the system clipboard to the document.
onbeforeupdate Fires on a databound object before updating the associated data in the data source object.
onblur Fires when the object loses the input focus.
oncellchange Fires when data changes in the data provider.
onchange Fires when the contents of the object or selection have changed.
onclick Fires when the user clicks the left mouse button on the object.
oncontextmenu Fires when the user clicks the right mouse button in the client area, opening the context menu.
oncontrolselect Fires when the user is about to make a control selection of the object.
oncut Fires on the source element when the object or selection is removed from the document and added to the system clipboard.
ondataavailable Fires periodically as data arrives from data source objects that asynchronously transmit their data.
ondatasetchanged Fires when the data set exposed by a data source object changes.
ondatasetcomplete Fires to indicate that all data is available from the data source object.
ondblclick Fires when the user double-clicks the object.
ondeactivate Fires when the activeElement is changed from the current object to another object in the parent document.
ondragenter Fires on the target element when the user drags the object to a valid drop target.
ondragstart Fires on the source object when the user starts to drag a text selection or selected object.
onerror Fires when an error occurs during object loading.
onerrorupdate Fires on a databound object when an error occurs while updating the associated data in the data source object.
onfilterchange Fires when a visual filter changes state or completes a transition.
onfocus Fires when the object receives focus.
onfocusin Fires for an element just prior to setting focus on that element.
onfocusout Fires for the current element with focus immediately after moving focus to another element.
onhelp Fires when the user presses the F1 key while the client is the active window.
oninput Occurs when the text content of an element is changed through the user interface.
onkeydown Fires when the user presses a key.
onkeypress Fires when the user presses an alphanumeric key.
onkeyup Fires when the user releases a key.
onlayoutcomplete Fires when the print or print preview layout process finishes filling the current LayoutRect object with content from the source document.
onload Fires immediately after the client loads the object.
onlosecapture Fires when the object loses the mouse capture.
onmousedown Fires when the user clicks the object with either mouse button.
onmouseenter Fires when the user moves the mouse pointer into the object.
onmouseleave Fires when the user moves the mouse pointer outside the boundaries of the object.
onmousemove Fires when the user moves the mouse over the object.
onmouseout Fires when the user moves the mouse pointer outside the boundaries of the object.
onmouseover Fires when the user moves the mouse pointer into the object.
onmouseup Fires when the user releases a mouse button while the mouse is over the object.
onmousewheel Fires when the wheel button is rotated.
onmove Fires when the object moves.
onmoveend Fires when the object stops moving.
onmovestart Fires when the object starts to move.
onpaste Fires on the target object when the user pastes data, transferring the data from the system clipboard to the document.
onpropertychange Fires when a property changes on the object.
onreadystatechange Fires when the state of the object has changed.
onreset Fires when the user resets a form.
onresize Fires when the size of the object is about to change.
onresizeend Fires when the user finishes changing the dimensions of the object in a control selection.
onresizestart Fires when the user begins to change the dimensions of the object in a control selection.
onrowenter Fires to indicate that the current row has changed in the data source and new data values are available on the object.
onrowexit Fires just before the data source control changes the current row in the object.
onrowsdelete Fires when rows are about to be deleted from the recordset.
onrowsinserted Fires just after new rows are inserted in the current recordset.
onscroll Fires when the user repositions the scroll box in the scroll bar on the object.
onselectstart Fires when the object is being selected.


Methods

The thead object has these methods.

Method Description
addBehavior Attaches a behavior to the element.

This method is not supported for Metro style apps using JavaScript.

appendChild Appends an element as a child to the object.
applyElement Makes the element either a child or parent of another element.
attachEvent Binds the specified function to an event, so that the function gets called whenever the event fires on the object.
blur Causes the element to lose focus and fires the onblur event.
clearAttributes Removes all attributes and values from the object.
click Simulates a click by causing the onclick event to fire.
cloneNode Copies a reference to the object from the document hierarchy.
componentFromPoint Returns the component located at the specified coordinates via certain events.
contains Checks whether the given element is contained within the object.
deleteRow Removes the specified row (tr) from the element and from the rows collection.
detachEvent Unbinds the specified function from the event, so that the function stops receiving notifications when the event fires.
doScroll Simulates a click on a scroll bar component.
fireEvent Fires a specified event on the object.
focus Causes the element to receive the focus and executes the code specified by the onfocus event.
getAdjacentText Returns the adjacent text string.
getAttribute Retrieves the value of the specified attribute.
getAttributeNode Retrieves an attribute object referenced by the attribute.name property.
getAttributeNodeNS Gets an attribute object that matches the specified namespace and name.
getAttributeNS Gets the value of the specified attribute within the specified namespace.
getBoundingClientRect Retrieves an object that specifies the bounds of a collection of TextRectangle objects.
getClientRects Retrieves a collection of rectangles that describes the layout of the contents of an object or range within the client. Each rectangle describes a single line.
getElementsByClassName Gets a collection of objects that are based on the value of the CLASS attribute.
getElementsByTagName Retrieves a collection of objects based on the specified element name.
getElementsByTagNameNS Gets a collection of objects that are based on the specified element names within a specified namespace.
hasAttribute Determines whether an attribute with the specified name exists.
hasAttributeNS Determines whether an attribute that has the specified namespace and name exists.
hasAttributes Determines whether one or more attributes exist for the object.
hasChildNodes Returns a value that indicates whether the object has children.
insertAdjacentElement Inserts an element at the specified location.
insertAdjacentHTML Inserts the given HTML text into the element at the location.
insertAdjacentText Inserts the given text into the element at the specified location.
insertBefore Inserts an element into the document hierarchy as a child node of a parent object.
insertRow Creates a new row (tr) in the table, and adds the row to the rows collection.
mergeAttributes Copies all read/write attributes to the specified element.
moveRow Moves a table row to a new position.
msMatchesSelector Determines whether an object matches the specified selector.
normalize Merges adjacent DOM objects to produce a normalized document object model.
querySelector Retrieves the first DOM

element node from descendants of the starting element node that match any selector within the supplied selector string.

querySelectorAll Retrieves all DOM

element nodes from descendants of the starting element node that match any selector within the supplied selector strings.

releaseCapture Removes mouse capture from the object in the current document.
removeAttribute Removes an attribute from an object.
removeAttributeNode Removes an attribute object from the object.
removeAttributeNS Removes the specified attribute from the object.
removeBehavior Detaches a behavior from the element.
removeChild Removes a child node from the object.
removeNode Removes the object from the document hierarchy.
replaceAdjacentText Replaces the text adjacent to the element.
replaceChild Replaces an existing child element with a new child element.
replaceNode Replaces the object with another element.
scrollIntoView Causes the object to scroll into view, aligning it either at the top or bottom of the window.
setActive Sets the object as active without setting focus to the object.
setAttribute Sets the value of the specified attribute.
setAttributeNode Sets an attribute object node as part of the object.
setAttributeNodeNS Sets an attribute object as part of the object.
setAttributeNS Sets the value of the specified attribute within the specified namespace.
setCapture Sets the mouse capture to the object that belongs to the current document.
swapNode Exchanges the location of two objects in the document hierarchy.


Properties

The thead object has these properties.

Property Description
accessKey Sets or retrieves the access key for the object.
align Sets or retrieves the alignment of the object relative to the display or table.
animation Gets or sets one or more shorthand values that specify all animation properties (except animation-play-state) for a set of corresponding object properties identified in the CSS @keyframes at-rule specified by the animation-name property.
animationDelay Gets or sets one or more values that specify the offset within an animation cycle (the amount of time from the start of a cycle) before the animation is displayed for a set of corresponding object properties identified in the CSS @keyframes at-rule specified by the animation-name property.
animationDirection Gets or sets one or more values that specify the direction of play for an animation cycle.
animationDuration Gets or sets one or more values that specify the length of time to complete one cycle of the animation.
animationFillMode Gets or sets one or more values that specify whether the effects of an animation are visible before or after it plays.
animationIterationCount Gets or sets one or more values that specify the number of times an animation cycle is played.
animationName Gets or sets a value that identifies one or more animation names. An animation name identifies (or selects) a CSS @keyframes at-rule.
animationPlayState Gets or sets one or more values that specify whether an animation is playing or paused.
animationTimingFunction Gets or sets one or more values that specify the intermediate property values to be used during a single cycle of an animation on a set of corresponding object properties identified in the CSS @keyframes at-rule specified by the animationName property.
ATOMICSELECTION Specifies whether the element and its contents must be selected as a whole, indivisible unit.
attributes Retrieves a collection of attributes of the object.
backfaceVisibility Gets or sets a value that specifies whether the back face (reverse side) of an object is visible.
bgColor Deprecated. Sets or retrieves the background color behind the object.
breakAfter Gets or sets the column-break behavior that follows a content block in a multi-column element.
breakBefore Gets or sets the column-break behavior that precedes a content block in a multi-column element.
breakInside Gets or sets the column-break behavior that occurs within a content block in a multi-column element.
canHaveChildren Gets a value indicating whether the object can contain child objects.
canHaveHTML Retrieves the value indicating whether the object can contain rich HTML markup.
ch Sets or retrieves a value that you can use to implement your own ch functionality for the object.
childElementCount Retrieves the number of immediate child nodes of the current element or a zero if the element does not contain any child nodes. childElementCount does not return all child nodes, only child nodes that are nodeType =1, or element nodes.
chOff Sets or retrieves a value that you can use to implement your own chOff functionality for the object.
className Sets or retrieves the class of the object.
clientHeight Retrieves the height of the object including padding, but not including margin, border, or scroll bar.
clientLeft Retrieves the distance between the offsetLeft property and the true left side of the client area.
clientTop Retrieves the distance between the offsetTop property and the true top of the client area.
clientWidth Retrieves the width of the object including padding, but not including margin, border, or scroll bar.
columnCount Gets or sets the optimal number of columns in a multi-column element.
columnFill Gets or sets a value that indicates how the column lengths in a multi-column element are affected by the content flow.
columnGap Gets or sets the width of the gap between columns in a multi-column element.
columnRule Gets or sets a shorthand value that specifies values for the columnRuleWidth, columnRuleStyle, and the columnRuleColor of a multi-column element.
columnRuleColor Gets or sets the color for all column rules in a multi-column element.
columnRuleStyle Gets or sets the style for all column rules in a multi-column element.
columnRuleWidth Gets or sets the width of all column rules in a multi-column element.
columnSpan Gets or sets the number of columns that a content block spans in a multi-column element.
columnWidth Gets or sets the optimal width of the columns in a multi-column element.
constructor Returns a reference to the constructor of an object.
dir Sets or retrieves the reading order of the object.
firstChild Gets a reference to the first child in the childNodes collection of the object.
firstElementChild Retrieves a reference to the first child element, or NULL if there are no child elements.
hideFocus Sets or gets the value that indicates whether the object visibly shows that it has focus.
id Sets or retrieves the string identifying the object.
innerHTML Sets or retrieves the HTML between the start and end tags of the object.
innerText Sets or retrieves the text between the start and end tags of the object.
isContentEditable Gets the value that indicates whether the user can edit the contents of the object.
isDisabled Gets the value that indicates whether the user can interact with the object.
isMultiLine Retrieves the value indicating whether the content of the object contains one or more lines.
isTextEdit Retrieves whether a TextRange object can be created using the object.
lang Sets or retrieves the language to use.
language Sets or retrieves the language in which the current script is written.
lastChild Gets a reference to the last child in the childNodes collection of an object.
lastElementChild Retrieves a reference to the last child element or NULL if there are no child elements.
msGridColumn Gets or sets a value that specifies in which column of the grid to place the object.
msGridColumnAlign Gets or sets a value that specifies the horizontal alignment of the object within the grid column.
msGridColumns Gets or sets one or more values that specify the width of each grid column within the object.
msGridColumnSpan Gets or sets a value that specifies the number of columns of the grid that the object spans.
msGridRow Gets or sets a value that specifies in which row of the grid to place the object.
msGridRowAlign Gets or sets a value that specifies the vertical alignment of the object within the grid row.
msGridRows Gets or sets one or more values that specify the height of each grid row within the object.
msGridRowSpan Gets or sets a value that specifies the number of rows of the grid that the object spans.
nextElementSibling Retrieves a reference to the sibling element that immediately follows or NULL if the element does not have any sibling elements that follow it.
nextSibling Retrieves a reference to the next child of the parent for the object.
nodeName Gets the name of a particular type of node.
nodeType Retrieves the type of the requested node.
nodeValue Gets or sets the value of a node.
offsetHeight Retrieves the height of the object relative to the layout or coordinate parent, as specified by the offsetParent property.
offsetLeft Retrieves the calculated left position of the object relative to the layout or coordinate parent, as specified by the offsetParent property.
offsetParent Retrieves a reference to the container object that defines the offsetTop and offsetLeft properties of the object.
offsetTop Retrieves the calculated top position of the object relative to the layout or coordinate parent, as specified by the offsetParent property.
offsetWidth Retrieves the width of the object relative to the layout or coordinate parent, as specified by the offsetParent property.
outerHTML Sets or retrieves the object and its content in HTML.
outerText Sets or retrieves the text of the object.
ownerDocument Retrieves the document object associated with the node.
parentElement Retrieves the parent object in the object hierarchy.
parentNode Retrieves the parent object in the document hierarchy.
parentTextEdit Retrieves the container object in the document hierarchy that can be used to create a TextRange containing the original object.
perspective Gets or sets a value that represents the perspective from which all child elements of the object are viewed.
perspectiveOrigin Gets or sets one or two values that represent the origin (the vanishing point for the 3-D space) of an object with an perspective property declaration.
previousElementSibling Retrieves a reference to the immediately preceding sibling element or NULL if the element does not have any preceding siblings.
previousSibling Gets a reference to the previous child of the parent for the object.
readyState Retrieves a value that indicates the current state of the object.
recordNumber Retrieves the ordinal record from the data set that generated the object.
role Sets or retrieves the role for this element.
scopeName Gets the namespace defined for the element.

This property is not supported for Metro style apps using JavaScript.

scrollHeight Retrieves the scrolling height of the object.
scrollLeft Sets or retrieves the distance between the left edge of the object and the leftmost portion of the content currently visible in the window.
scrollTop Sets or retrieves the distance between the top of the object and the topmost portion of the content currently visible in the window.
scrollWidth Retrieves the scrolling width of the object.
sourceIndex Retrieves the ordinal position of the object, in source order, as the object appears in the document's all collection.
STYLE Sets an inline style for the element.
tabIndex Sets or retrieves the index that defines the tab order for the object.
tagName Retrieves the tag name of the object.
tagUrn Sets or gets the URN specified in the namespace declaration.

This property is not supported for Metro style apps using JavaScript.

title Sets or retrieves advisory information (a ToolTip) for the object.
transformStyle Gets or sets a value that specifies how child elements of the object are rendered in 3-D space.
transition Gets or sets one or more shorthand values that specify the transition properties for a set of corresponding object properties identified in the transition-property property.
transitionDelay Gets or sets one or more values that specify the offset within a transition (the amount of time from the start of a transition) before the transition is displayed for a set of corresponding object properties identified in the transition-property property.
transitionDuration Gets or sets one or more values that specify the durations of transitions on a set of corresponding object properties identified in the transition-property property.
transitionProperty Gets or sets a value that identifies the CSS property name or names to which the transition effect (defined by transition-duration, transition-timing-function, and transition-delay) is applied when a new property value is specified.
transitionTimingFunction Gets or sets one or more values that specify the intermediate property values to be used during a transition on a set of corresponding object properties identified in the transition-property property.
uniqueID Retrieves an autogenerated, unique identifier for the object.
uniqueNumber Retrieves the element's unique number.
vAlign Sets or retrieves how text and other content are vertically aligned within the object that contains them.

 

Compatibility

Desktop

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support ? ? ? ? ?

Mobile

Feature Android BlackBerry Chrome for mobile Firefox Mobile (Gecko) IE Mobile Opera Mobile Opera Mini Safari Mobile
Basic support ? ? ? ? ? ? ? ?

This article contains content originally from external sources.

Portions of this content come from the Microsoft Developer Network: [Windows Internet Explorer API reference Article]

Retrieved from "http://docs.webplatform.org/w/index.php?title=html/elements/thead&oldid=31337"