View state Error: Salesforce allows Visualforce pages to have a maximum view state size of 135KB. 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.
- "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.
What is view state error in Salesforce?
View State: As the name suggests, it is an error of View State. Maximum view state size limit (135KB) exceeded is the error message pertaining to View State error and here follows a brief detailing of the issue. View state holds the state/size of the visual force page that includes the components, field values, and controller state.
How to minimize the VIEWSTATE in Salesforce apex?
The use of transient keyword will allow you to minimize the Viewstate. Though, technically there is no known way to calculate Viewstate in visualforce via Salesforce Apex API, we just need to code within the best practices boundaries and that usually make sure that Viewstate issues never arise, Best Practices for view state.
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 view state in salesforce development mode footer?
The View State tab in the development mode footer provides information about the view state of your Visualforce page as it interacts with Salesforce. If your not using input tags in visual force page form is not required.Without form Viewstate is not created. Minimize number of form on a page. Use apex:actionRegion instead of using 2 or more forms.
What is view state exception in salesforce?
If the size of a particular page exceeds 135kb, the page will throw a view state error. A screenshot showing a view state error in salesforce. To check the view state of a visual force page you have to make sure that Show View State in Development Mode checkbox in the User Layout is checked.
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 view state limit 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.
What is the view state in salesforce?
View state holds the state of Visual force page. 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).
How do I get rid of 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
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 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.
What are states in VF page in Salesforce?
What is view state in salesforce? ViewState holds state of the visualforce page that holds state that includes the fields, components and controller state. Viewstate data in encrypted and cannot be viewed tools like firebug. There is a limit of 135KB of view state.
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 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 show view state development mode?
Since the view state contributes to the overall size of your page, performance of a page can depend on efficiently managing the view state. The View State tab in the development mode footer provides information about the view state of your Visualforce page as it interacts with Salesforce.
What is actionSupport in Salesforce?
actionSupport component adds AJAX support to other components in visualforce. It allows components to be refreshed asynchronously by calling the controller's method when any event occurs (like click on button). It allows us to do partial page refresh asynchronously without refreshing full page.
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