Javascript with Visualforce pages

Javascript is one of key browser technology on Visualforce pages. Javascript provides the framework for communication between other Javascript objects, HTML elements and visualforce controller. This example will explain how can we use javascripts in visualforce pages.

<apex:page>

<script>
function changeFont(input, textid) {
if(input.checked) document.getElementById(textid).style.fontWeight = "bold";
else document.getElementById(textid).style.fontWeight = "normal";
}
</script>


<apex:outputPanel layout="block">
<label for="checkbox">Click this box to change text font: </label>
<input id="checkbox" type="checkbox"
onclick="changeFont(this,'{!$Component.thePanel}');"/>
</apex:outputPanel>

<apex:outputPanel id="thePanel" layout="block">Change me!
</apex:outputPanel>
</apex:page>

'{!$Component.idName}' : This is the way of passing particular visualforce component id into the javascript.

Comments

Post a Comment

Popular posts from this blog

Do you want to be certified as a Salesforce Admin?

Image
Most of the newbies in Salesforce ask these questions. "I have tried Salesforce stuff and I'm interested on Salesforce. Can I go for the Salesforce Admin Certification?" "How can I prepare for the Salesforce Admin certification?" "Should I go for Admin certification or Developer or App Builder?" "I don't have any technical or programming background. Can I go for it? Will it be suitable for me?" Well....If you have these questions or similar questions, you should continue your reading...  😇 For Whom? If you are involved as a Salesforce Administrator at your organization, then definitely, this is for you. Having some hands on experience in Salesforce administration, would give you a good confidence on clearing the certification. You should have expansive knowledge on customizing & configuring  Salesforce platform, managing users, and search for new ways of getting more out of features and capabilities. Why Salesforc
Read more

Displaying pop-up summaries on hover in visualforce

What if I want to make a summary pop-up window when a user hovers over a link in a visualforce page. This Feature is easy in standard salesforce pages, mostly because it happens automatically. But not in visualforce pages. I have seen most of example for pop-up in salesforce were created using the output panels with some embedded styles.   Here I'm posting a pop-up example which show the details of a partuclar record on a mouseover using the Hover links similar to those used in standard Salesforce links.  /*visualforce page*/ <apex:page controller="PopupTest"> <apex:form > <apex:repeat value="{!accounts}" var="acc"> <br/> <a href="/{!acc.Id}" id="{!acc.Id}" onblur="LookupHoverDetail.getHover('{!acc.Id}').hide();" onfocus="LookupHoverDetail.getHover('{!acc.Id}', '/{!acc.Id}/m?retURL=%2F{!acc.Id}&isAjaxRequest=1').show(
Read more

Unit Testing in Salesforce

Testing is a key and critical component to successful long term software development process. Salesforce.com strongly recommends using a test-driven development process which occurs at the same time as code development. Salesforce has very strong set of documentation. When I was learning salesforce unit testing, I realize that it is difficult to understand where to start read. Therefore, I summarized the unit testing for salesforce beginners to understand the basic aspects of unit testing. There are few things to consider before you deploy or upload the code or package; 75% of your Apex code must be covered by unit tests All the tests must complete successfully Every trigger has some test coverage (1%) All classes and triggers must compile successfully When you are writing a test class, you have to write test for Single Action, Bulk Action, Positive Behavior, Negative Behavior, and Restricted User. Single Action : Test to verify that a single record produces the corre
Read more