I just built a Visualforce application that people can use to associate a number of "child" records to a single "parent" record. Let's say that the application uses the Account object as the standard controller and then we extend the logic so that we can find, manipulate and link many Contact records. The functionality of the application is not important for this post but how we access the application is important. [...]
I am a big fan of developing Visualforce pages that are useful to humans. This means providing helpful feedback to the person interacting with the application in order to limit User frustration. In some circumstances this means providing clearer error messaging rather than simply outputting any system generated errors. [...]
A big part of building Visualforce pages is making sure that the human has a good experience while interacting with the page(s) you've designed. This means that you need to have a good way of handling errors when and if they occur. In this post I will highlight one of the simplest ways to handle an error by utilizing the apex:pageMessages tag within your Visualforce page. [...]
Pass values to a new Opportunity via a custom button using nothing but the URL. This can be useful if you want to default some values on the detail page when new records are being created. It can save your Users some time so they don't need to fill out every field. It will also allow you to provide some guidance for values you want provided when new records are created in your organization. [...]
Years ago I wrote a post about how to use the User's locale settings in order to render a properly formatted DateTime value within a Visualforce page. Today I needed a locale based date value to render in Visualforce. I went out to that old post and reviewed it because I needed a place to begin coding. [...]
In my last post I provided a template for creating a Visualforce page rendered as a PDF. In this post I am going to show you how to generate that PDF file and attach it to a record within Salesforce by simply clicking a button/link. [...]
A few years ago I started generating PDF invoices and receipts directly within Salesforce. Since invoices or receipts may have many rows of data and the data may span multiple pages, I decided to include a page counter in the margin of each rendered page. [...]
The Spring '15 Salesforce release introduced the concept of the @testSetup annotation. According to the documentation, methods defined with the @testSetup annotation are used for creating common test records that are available for all test methods in the class. [...]
Have you ever needed to deactivate a trigger for some maintenance activities on records or for a code deployment? At a high level, the act of activating/deactivating a trigger is simple. Go to your Salesforce sandbox, modify the status of the trigger and deploy the code. Depending on your unit test coverage for the trigger you may have to tweak the test class and include that in the deployment. [...]
A quick search for Salesforce wrapper results in the following definition. A wrapper or container class is a class, a data structure, or an abstract data type whose instances are collections of other objects. That's fine but if you're new to the concept then it is likely that the definition of a Salesforce wrapper class is not as useful as a practical example of the logic. [...]
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