When to use conditional rendering inside Visualforce pages?

When to use conditional rendering inside Visualforce pages?

The trick below is good for 90% of cases, especially if you need a placeholder to which rerender might eventually have to inject something. But it can cause problems if you render VF as PDF and you’re using this conditional rendering to hide table rows; inside for example.

How to use conditional rendering in VF template?

I have a VF template where I need to vary the closing part of the mail (after ‘Best Regards’) based on a particular Picklist field on the case object. Eg if Custom_field__c =’ML’ then the closing part of the email should be – ABC if Custom_field__c =’SS’ then the closing part of the email should be – CFG and a few similiar conditions.

Are there overwritten edit pages in Visualforce?

I have an overwritten edit page for my custom object, which have different record types with different fields.

How to inject VF tags in Visualforce pages?

Recently outputPanel started to inject tags, even with layout=”none”; and they break the table into separate rows with renderAs=”pdf” Knowledge Base link. So… what’s another VF tag that contains rendered attribute but for sure doesn’t generate any HTML so tables don’t break…

How to alignment of fields in Visualforce page?

May I suggest you please refer the below link for reference on Alignment of fields in the visualforce page. Hope it will be helpful. Please mark it as best answer if the information is informative.so that question is removed from an unanswered question and appear as a proper solution. You need to sign in to do that.

How to design a visuaflorce page in Visualforce?

Search for an answer or ask a question of the zone or Customer Support. Need help? Dismiss Don’t have an account? Don’t have an account? I want to design visuaflorce page based below attachment.Please guide me.

Can a PDF page be rendered in Visualforce?

Currently PDF is the only supported content converter. Setting renderAs attribute to “pdf” renders the page as a PDF. Rendering a Visualforce page as a PDF is intended for pages that are designed and optimized for print.

How does the PDF rendering service work on a page?

The PDF rendering service renders the markup and data on your page, but it might not render formatting contained within the contents of rich text area fields added to the page. Long lines of text that don’t have break points, such as a space or dash, can’t be wrapped by the PDF rendering service.

How to conditionally render HTML in Salesforce Lightning?

To render HTML conditionally, add the if:true|false directive to a nested tag that encloses the conditional content. Tip Directives are special HTML attributes. The Lightning Web Components programming model has a few custom directives that let you manipulate the DOM using markup.

How to use the Lightning design system in Visualforce?

Use the element to incorporate the Lightning Design System in your Visualforce pages and align them with the styling of Lightning Experience. This component is a streamlined alternative to uploading the Lightning Design System as a static resource and using it in your Visualforce pages.

How do you render conditional content in HTML?

To render HTML conditionally, add the if:true|false directive to a nested tag that encloses the conditional content. Tip Directives are special HTML attributes.

How to make a conditional statement in Visualforce?

Conditional Statement In Visualforce? I’m trying to display records on a page (not a form) via VisualForce based on a checkbox value. For example, if checkbox “Active_c” is checked, I would like to display five subsequent fields. If checkbox “Active_c” is not checked, I would like to display nothing.

How does conditional rendering work in JavaScript and react?

Conditional Rendering. In React, you can create distinct components that encapsulate behavior you need. Then, you can render only some of them, depending on the state of your application. Conditional rendering in React works the same way conditions work in JavaScript.

What should a VF look like in Visualforce?

In visualforce you can use some logical operators and functions. Explanation here You need to put the logic in the controller (where most people say it belongs anyways). Your VF would look like: Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question.

Can you customize a flow in Visualforce?

The standard user interface for running a flow can’t be customized by using Flow Builder. However, once you embed a flow in a Visualforce page, you can use Apex code and Visualforce markup to configure the flow at run time—such as to pass values between the Visualforce page and the flow or to customize the look and feel of the flow at run time.

How are member variables referenced in Visualforce flow?

Any flow within your organization can be individually referenced by its own Apex type, and the variables in the flow can be accessed as member variables. After you embed your flow in a Visualforce page, set the initial values of variables, record variables, collection variables, and record collection variables through the component.

How to do conditional block in Visualforce Stack Overflow?

I am missing this kind of page block preparation in vf pages. What I have found that we can use outputpanel ( ) for any block and use the rendered attribute to handle the condition for loading it.

Is it possible to return Null from a render method?

Returning null from a component’s render method does not affect the firing of the component’s lifecycle methods. For instance componentDidUpdate will still be called. Is this page useful?

How is the conditional operator used in react?

Use JavaScript operators like if or the conditional operator to create elements representing the current state, and let React update the UI to match them. Consider these two components:

How can I dynamically render required fields using a…?

I have a Visualforce page on which I am rendering a lot of fields using a Dynamic Component (which is an Output Panel that contains all of the fields).

Can You conditionally render a VF page in apex?

Yes you can conditionally render an VF page as well. Say, you have an account type record and you want to render your VF based on that account’s rating field.