What is a 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. If the size of a particular page exceeds 135kb, the page will throw a view state error.
What is the maximum view state size limit in Salesforce?
Maximum view state size limit (135KB) exceeded How can I avoid this error? - Salesforce Developer Community Maximum view state size limit (135KB) exceeded How can I avoid this error?
How to optimize the size of a view state in Visualforce?
A small amount of data for Visualforce to do housekeeping. Developer environments have a view state inspector, which lets you view the contents of the view state. 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
What is the size of a page in Salesforce?
This is important in the light that salesforce provides only a standard size of 135kb for any individual page. If the size of a particular page exceeds 135kb, the page will throw a view state error.
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 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 do I reduce the size of my view state?
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 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 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 transient variable in Salesforce?
The value of transient variable is only transferred from controller to visualforce page but not as part of view state. As the value is not part of view state, the changed value of that variable is not transferred back from visualforce page to controller when a new request is made by clicking a button or link.
Does viewstate affect performance?
Although we have disabled viewstate, ASP.NET uses viewstate for some data to maintain the page state, but this is very little and not going to cause any performance overhead.
How do I query more than 10000 records in Salesforce?
You could use batch apex, and it is the only way by which you can query some millions of records without hitting the governor limits. You can find the document for writing batch apex here. Thanks. you can fetch the records in batches in 200 (the implicit query more pattern).
What is Salesforce governor limits?
Governor Limits in Salesforce are the runtime limits enforced by apex runtime engine to write scalable and efficient code. Because apex runs in a multitenant environment, the Apex runtime engine strictly enforces limits to ensure that runaway Apex code or processes do not monopolize shared resources.
What is Visualforce page size in Salesforce?
Yes the page size is 128 KB.
What is 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). Since the view state contributes to the overall size of your page, performance of a page can depend on efficiently managing the view state.
What to do if a large percentage of view state comes from objects used in controllers or controller extensions?
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 inspector?
Developer environments have a view state inspector, which lets you view the contents of the view state. 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
Is transient variable stored in view state?
The transient variables are not passed to view state and therefore not stored in View State.
Is Visual Force page form required without input?
If your not using input tags in visual force page form is not required.Without form Viewstate is not created.
What is view state in Visualforce?
To maintain state in a Visualforce page, the Lightning Platform platform includes the state of components, field values, and controller state in a hidden form element. This encrypted string is the view state and has a limit of 170KB. Large view states require longer processing times for each request, including serializing and deserializing, and encryption and decryption. Reducing your view state size causes your pages to load quicker and stall less often.
How to reduce view state?
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.
What is 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. If the size of a particular page exceeds 135kb, the page will throw a view state error.
How to check view state of a visual force page?
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 to keep VF page size small?
1. Use the transient keyword: The simplest and the most logical way is to keep the size of the VF page as small as possible. For this purpose, Transient Variables are used as these do not store the values permanently, these variables just hold the values temporarily and therefore not stored in View State.
