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Why do I need a wrapper class in Visualforce?
This is what permits the page to display either the values from the account object or the data from our row counter variable. Feel free to review the original code sample and the new in order to fully understand the changes that were made to permit the use of a wrapper class in the logic.
How to write wrapper class for multiple objects?
When you define a wrapper. instead of using a list inside the wrapper, use the List of the wrapper in the actual class. Then use the PageBlockTable with List of Wrapper Class in your Visualforce Page . You will then have the flexibility to avoid duplicates, If you are not able to work with List, Try populating values with SETS.
What’s the difference between the old and New Visualforce pages?
The most obvious alteration you will notice from the old Visualforce page and the new Visualforce page is that there is some additional dot notation in the value attribute of the apex:column tags. This is what permits the page to display either the values from the account object or the data from our row counter variable.
How to display multiple objects in Salesforce page?
Create a two dimensional array and store different object’s data as strings. Then iterate over the array in visualforce page to display the data. Make sure to check for nulls while using the indices. Thanks for contributing an answer to Stack Overflow!
How to display aggregate results in Visualforce page?
You can write a wrapper class and map your result into the wrapper class list. And you can use wrapper class to display your data. Something like below code should work. If you want to use “headerValue” in column with Aggregate Result then you can’t use it directly. You have to use for setting header value.
How to display two objects fields in Visualforce page?
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? how to display two objects fields in visualforce page by using wrapper class? Please provide me a simple code for it. Please find below an example of how to accomplish this. I hope this helps! Martijn Schwärzer
Do you need a row counter in Visualforce?
Let’s presume that the requirement is to add a row counter to the data rows that are displayed in the Visualforce page. Since the counter is not natively stored on the Account object we will need to add it to our record collection prior to passing the Accounts back to the Visualforce page.
Which is an example of a wrapper class?
This is a practical example of when you would utilize a wrapper class in your code. The wrapper will literally allow us to combine the Account records and this arbitrary counter variable together so that we can utilize both objects in the page.