What is View state and How to enable view state in Salesforce
- Go to setup –> Administration Setup –> Manage Users –> Users.
- Select the user.
- Click ‘Edit’ button.
- Check the ‘Show View State in Development Mode’ checkbox.
- Click ‘Save’ button.
What is view state in Salesforce Visualforce?
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 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 the view state of a 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). 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 is the difference between view state and private state?
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. View state holds the state of Visual force page.
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.
How do I overcome ViewState error 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
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 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.
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 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.
How do I check my view state?
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 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 debug a validation rule in salesforce?
You can use debug log to debug your code. Goto Setup--> Administration Setup--> Monitoring-->Debug logs--> Click on New Button ---> click on lookup icon--> select logged in user from list -->click save. Now execute your code and go to that debug log page, you would find a entry log entry against your execution.
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
When to use private setter?
use private setter for elements where you are not updating value from visualforce page.
Is transient variable stored in view state?
The transient variables are not passed to view state and therefore not stored in View State.
Do you use pagemessage in VF?
5. don't use pagemessage attribute in vf pages.
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.
