To reduce view state: Use filters and pagination to reduce data requiring state. Declare instance variables with a transient keyword when the variable is only useful for the current request. The view state includes all non-transient members in the controller and extension, as well as objects reachable from these non-transient members.
- “Transient” keyword – to declare instance variables that can’t be saved, and shouldn’t be transmitted as part of the view state for a VF page. …
- Minimize the number of forms i.e <apex:form> on a page. …
- Refine your SOQL to retrieve only the data needed.
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How to optimize the view state size in Salesforce?
This information can help you in optimizing the view state size. Once enabled, it shows up as a tab in Development Mode, as follows. you can enable that from Edit User-> Select view state checkbox after development mode checkbox.
How can I improve my view state in Visualforce?
If you notice that a large percentage of your view state comes from objects used in controllers or controller extensions, consider refining your SOQL calls to return only data that’s relevant to the Visualforce page. If your view state is affected by a large component tree, try reducing the number of components your page depends on.
What is view state in Salesforce soql?
If you notice that a large percentage of your view state comes from objects used in controllers or controller extensions, consider refining your SOQL calls to return only data that’s relevant to the Visualforce page. View state holds the state of Visual force page.
Why are my view state values private in Salesforce?
define private if they are not used on visualforce page. If you notice that a large percentage of your view state comes from objects used in controllers or controller extensions, consider refining your SOQL calls to return only data that’s relevant to the Visualforce page.
What is the size of view state in salesforce?
Salesforce allows Visualforce pages to have a maximum view state size of 170KB. The View State tab shows you which elements on your page are taking up that space. A smaller view state size generally means quicker load times. In order to avoid this error, minimize your pages’ view state.
How do I fix maximum view state size limit 170KB exceeded?
In order to avoid this error, minimize your pages’ view state. You can optimize your Apex controller code and remove any superfluous Visualforce components used.
How do I know my view state size?
To monitor view state, you must first enable this by going to My Settings | Personal | Advanced User Details and clicking Edit. Select the Development Mode AND Show View State in Development Mode checkboxes and click Save.
What is the view state in salesforce?
View state holds the state/size of the visual force page that includes the components, field values, and controller state. This is important in the light that salesforce provides only a standard size of 135kb for any individual page.
How do I fix View State error?
In order to reduce the view state, make use of the following:”Transient” keyword – to declare instance variables that can’t be saved, and shouldn’t be transmitted as part of the view state for a VF page. … Minimize the number of forms i.e
How do I debug a view state error in Salesforce?
Under your user profile, enable Development Mode and View State. Then, navigate to the page you’re working on; it will be in the bottom section (the code editor). Thanks for the tip; that’s the answer.
What is heap size limit in Salesforce?
Salesforce enforces an Apex Heap Size Limit of 6MB for synchronous transactions and 12MB for asynchronous transactions. The “Apex heap size too large” error occurs when too much data is being stored in memory during processing.
How do I enable view state in Salesforce?
To enable the View State tab:From your personal settings, enter Advanced User Details in the Quick Find box, then select Advanced User Details. No results? … Click Edit.Select the Development Mode checkbox if it isn’t selected.Select the Show View State in Development Mode checkbox.Click Save.
What is the maximum size of a Visualforce page?
Visualforce LimitsLimitValueMaximum view state size in a Visualforce page170KBMaximum size of a Visualforce email template1 MBMaximum file size for a file uploaded using a Visualforce page10 MBMaximum size of HTML response before rendering, when Visualforce page is rendered as PDFLess than 15 MB16 more rows
What is the difference between actionSupport and Actionfunction?
Action function can call the controller method from java script. 2. Action support adds AJAX support to another visualforce component and then call the controller method. Here action support adds AJAX to output panel, so once you click on output panel controller method will be called.
What do developers mean when they say view state?
The view state of a web page is composed of all the data that’s necessary to maintain the state of the controller during server requests (like sending or receiving data).
What is difference between transient and static?
The main difference between the two ( static versus transient ) is that static variables exist only once per transaction, but transient variables can exist many times. In other words, static variables have a global scope, while transient variables have a local scope.
What is view state in Salesforce?
View State is a technique Salesforce uses to maintain the current state of the page and the data that was queried between the user requesting things from the server and sending any changes back to the server.If the view state gets too large problems can begin to occur. The view state is an encrypted field that contains the following data: 1 All of the non-transient data that is in the associated controller and any associated controller extensions 2 State related to all of the form elements and components that are used on the page. 3 Finally there’s some sort of internal state that Salesforce doesn’t provide much information about.
Why is view state important?
The reason that the view state is so important is that because every time the page is re-rendered for some reason or that a request has been sent to the server that we need to send and receive the view state. As you can imagine, a large view state being constantly transmitted would add a lot of overhead.
Controller Data – Use transient
To reduce the amount of data needed to store the state of your controller you can make liberal use of the transient keyword so that only data that is truly needed to maintain state is sent over to the client. Anything you can re-query, or otherwise re-create, can be ditched.
Internal View State – Avoid apex components
If you’re running into internal view state issues (this typically only happens with pages with large collections), the best way to reduce it is to switch to using standard HTML components instead of apex components. Each apex component adds a certain amount of “weight” to the page (and some much more than others, i.e.