How To Use APEX:COMMANDBUTTON In Visualforce Page?

<apex:commandButton>:
             Buttons are very important in any page and they are the means using which a user interacts with the system to perform some actions such as Save, Update, Create, Delete, Cancel etc...
This tag helps us to create buttons.
                      The action that has to be executed when the button is pressed depends on the ACTION attribute specified in this tag. The action that is specified needs to be defined in the controller that is used in this pages controller attribute of the page rag. Once the action is performed the page would navigate to a different page or display the same page based on the PageReference variable that is returned by the action.

An < apex:commandButton > component must always be a child component of the < apex:form > tag.
<apex:commandButton action="{!save}" value="Save" id="save"/>

Also Read: How To Use APEX:PAGEBLOCKSECTION In Visualforce Page?

This tag supports following attributes:

Attribute Description
Id An identifier that allows the commandButton component to be referenced by other components in the page.
Image The absolute or relative URL of the image displayed as this button. If specified, the type of the generated HTML input element is set to "image."
Immediate A Boolean value that specifies whether the action associated with this component should happen immediately, without processing any validation rules associated with the fields on the page. If set to true, the action happens immediately and validation rules are skipped. If not specified, this value defaults to false.
onblur The JavaScript invoked if the onblur event occurs--that is, if the focus moves off of the command button.
onclick The JavaScript invoked if the onclick event occurs--that is, if the user clicks the command button.
oncomplete The JavaScript invoked when the result of an AJAX update request completes on the client.
ondblclick The JavaScript invoked if the ondblclick event occurs--that is, if the user clicks the command button twice.
onfocus The JavaScript invoked if the onfocus event occurs--that is, if the focus is on the command button.
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 command button.
onmouseover The JavaScript invoked if the onmouseover event occurs--that is, if the user moves the mouse pointer over the command button.
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.
reRender The ID of one or more components that are redrawn when the result of an AJAX update request returns to the client. This value can be a single ID, a comma-separated list of IDs, or a merge field expression for a list or collection of IDs.
status The ID of an associated component that displays the status of an AJAX update request. See the actionStatus component.
style The style used to display the commandButton component, used primarily for adding inline CSS styles.
styleClass The style class used to display the commandButton component, used primarily to designate which CSS styles are applied when using an external CSS stylesheet.
tabindex The order in which this button is selected compared to other page components when a user presses the Tab key repeatedly. This value must be a number between 0 and 32767, with component 0 being the first component that is selected when a user presses the Tab key.
timeout The amount of time (in milliseconds) before an AJAX update request should time out.
title The text to display as a tooltip when the user's mouse pointer hovers over this component.
value The text displayed on the commandButton as its label.


<apex:page standardController="Account">
    <apex:form>
        <apex:pageBlock title="My Content" mode="edit">
            <apex:pageBlockSection title="My Content Section" columns="2">
                <apex:inputField value="{!account.name}"/>
                <apex:inputField value="{!account.site}"/>
                <apex:inputField value="{!account.type}"/>
                <apex:inputField value="{!account.accountNumber}"/>
            </apex:pageBlockSection>
            <apex:pageBlockButtons>
                <apex:commandButton action="{!save}" value="Save"/>
            </apex:pageBlockButtons>
        </apex:pageBlock>
    </apex:form>
</apex:page>
The above code generated the below page:


VF_Commandbutton


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Sfdc Gurukul- All in one place for salesforce and force.com step by step tutorial for beginners: How To Use APEX:COMMANDBUTTON In Visualforce Page?
How To Use APEX:COMMANDBUTTON In Visualforce Page?
How To Use APEX:COMMANDBUTTON In Visualforce Page?,apex:commandButton,,commandButton in salesforce,commandButton in visualforce,Visualforce commandButton
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Sfdc Gurukul- All in one place for salesforce and force.com step by step tutorial for beginners
http://sfdcgurukul.blogspot.in/2013/07/how-to-use-apexcommandbutton-in.html
http://sfdcgurukul.blogspot.in/
http://sfdcgurukul.blogspot.com/
http://sfdcgurukul.blogspot.com/2013/07/how-to-use-apexcommandbutton-in.html
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