Sunday, June 15, 2014

How to use apex:outputLink In Visualforce Page?

How to use <apex:outputLink> In Visualforce Page?

<apex:outputLink>:
This tag creates a link to a URL. The below code displays the text www.salesforce.com as a hyperlink text on the visual force page and when this link is clicked the URL specified in the value attribute will be opened. The body of an < apex:outputLink > can be text or an image.

Syntax:
<apex:outputLink value="https://www.salesforce.com" id="theLink"> www.salesforce.com </apex:outputLink>


This tag supports following attributes:
Attribute
Description
accesskey
The keyboard access key that puts the link in focus. When the link is in focus, pressing the Enter key is equivalent to clicking the link.
charset
The character set used to encode the specified URL. If not specified, this value defaults to ISO-8859-1.
coords
The position and shape of the hot spot on the screen used for the output link (for use in client-side image maps). The number and order of comma-separated values depends on the shape being defined. For example, to define a rectangle, use coords="left-x, top-y, right-x, bottom-y". To define a circle, use coords="center-x, center-y, radius". To define a polygon, use coords="x1, y1, x2, y2, ..., xN, yN", where x1 = nN and y1 = yN. Coordinates can be expressed in pixels or percentages, and represent the distance from the top-left corner of the image that is mapped. See also the shape attribute.
dir
The direction in which the generated HTML component is read. Possible values include "RTL" (right to left) or "LTR" (left to right).
disabled
A Boolean value that specifies whether this link is displayed in a disabled state. If set to true, the field appears disabled because an HTML span tag is used in place of the normal anchor tag. If not specified, this value defaults to false.
hreflang
The base language for the resource referenced by this command link, for example, "en" or "en-US".
id
An identifier that allows the outputLink component to be referenced by other components in the page.
lang
The base language for the generated HTML output, for example, "en" or "en-US".
onblur
The JavaScript invoked if the onblur event occurs--that is, if the focus moves off of the output link.
onclick
The JavaScript invoked if the onclick event occurs--that is, if the user clicks the output link.
ondblclick
The JavaScript invoked if the ondblclick event occurs--that is, if the user clicks the output link twice.
onfocus
The JavaScript invoked if the onfocus event occurs--that is, if the focus is on the output link.
onkeydown
The JavaScript invoked if the onkeydown event occurs that is, if the user presses a keyboard key.
onkeypress
The JavaScript invoked if the onkeypress event occurs that is, if the user presses or holds down a keyboard key.
onkeyup
The JavaScript invoked if the onkeyup event occurs that is, if the user releases a keyboard key.
onmousedown
The JavaScript invoked if the onmousedown event occurs that is, if the user clicks a mouse button.
onmousemove
The JavaScript invoked if the onmousemove event occurs that is, if the user moves the mouse pointer.
onmouseout
The JavaScript invoked if the onmouseout event occurs that is, if the user moves the mouse pointer away from the output link.
onmouseover
The JavaScript invoked if the onmouseover event occurs that is, if the user moves the mouse pointer over the output link.
onmouseup
The JavaScript invoked if the onmouseup event occurs that is, if the user releases the mouse button.
rendered
A Boolean value that specifies whether the component is rendered on the page. If not specified, this value defaults to true.
shape
The shape of the hot spot in client-side image maps. Valid values are default, circle, rect, and poly. See also the coords attribute.
style
The style used to display the output link component, used primarily for adding inline CSS styles.
styleClass
The style class used to display the output link component, used primarily to designate which CSS styles are applied when using an external CSS stylesheet.
tabindex
The order in which this link is selected compared to other page components when a user presses the Tab key repeatedly. This value must be an integer between 0 and 32767, with component 0 being the first component that is selected when a user presses the Tab key.
target
The name of the frame where the resource retrieved by this command link is displayed. Possible values for this attribute include "_blank", "_parent", "_self", and "_top". You can also specify your own target names by assigning a value to the name attribute of a desired destination.
title
The text to display as a tooltip when the user's mouse pointer hovers over this component.
value
The URL used for the output link.


Visualforce Eample:


<apex:page standardController="Account">
    <apex:form >
        <apex:pageBlock title="My Content" mode="edit">
            <apex:pageBlockSection title="My Content Section" columns="1">
              <apex:outputLink value="https://www.salesforce.com">www.salesforce.com</apex:outputLink>
            </apex:pageBlockSection>                
        </apex:pageBlock>
    </apex:form>
</apex:page>


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