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, also as @Mohith mentioned, clearing of Variables/List variables or variables specifically of blob datatype (file upload controls), also minimizes Viewstate by a good margin.
- "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 ViewState error 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 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 view ViewState in salesforce?
View State TabFrom 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 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.
How does Viewstate reduce the size of viewstate in salesforce?
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 viewstate asp net?
View state is the method that the ASP.NET page framework uses to preserve page and control values between round trips. When the HTML markup for the page is rendered, the current state of the page and values that must be retained during postback are serialized into base64-encoded strings.
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 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.
How many records can we display in Visualforce page?
It allows the developer to configure list view to display up to 100 records at a time, but by default it returns 20 records on the page.
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.
Which of the following variables are not transmitted in the viewstate?
Static variables also don't get transmitted through the view state.
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.
