What is the use of view state in Salesforce?

What is viewState? 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.

Similarly, it is asked, how do I stop a view state in Salesforce?

Tips on reducing View State Size:

1. Declare variables as Transient if possible.
2. Declare variable as Static, as it is not saved in View State.
3. If you want to manage your own state, instead of using <apex:form> use HTML <form> tag instead.
4. Recreate state instead of saving in Viewstate.

One may also ask, how do I enable view state in Salesforce? To enable the View State tab:

1. From your personal settings, enter Advanced User Details in the Quick Find box, then select Advanced User Details. No results?
2. Click Edit.
3. Select the Development Mode checkbox if it isn't selected.
4. Select the Show View State in Development Mode checkbox.
5. Click Save.

Consequently, what is view state size 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 use of transient keyword in Salesforce?

A common use case for the transient keyword is a field on a Visualforce page that is needed only for the duration of a page request, but should not be part of the page's view state and would use too many system resources to be recomputed many times during a request.

What is pagination in salesforce?

Pagination is the process of taking a complete document or a large number of records in this example and breaking that document/large number of records into separate pages for viewing within the Salesforce. The Salesforce user can click the next tab and go through each new page display the next 10 records.

What is ViewState error in Salesforce?

March 15, 2017 Brian Cline Salesforce No Comments. 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

What are the different annotations in Salesforce and tell me with examples?

Annotations are defined with an initial @ symbol, followed by the appropriate keyword. Apex supports the following annotations.

Apex REST annotations:

• @RestResource (urlMapping='/ yourUrl ')
• @HttpDelete.
• @HttpGet.
• @HttpPatch.
• @HttpPost.
• @HttpPut.

What are static resources in Salesforce?

Static Resources. Static resources allow you to upload content that you can reference in a Visualforce page, including archives (such as . zip and . jar files), images, style sheets, JavaScript, and other files.

What is the difference between Actionsupport and Actionfunction?

Apart from this, the main difference between the "two" action support and action function is that, the action function can also be called from java script. Here onclick of the inputcheck box java script is called from where the action function gets called and ultimately your controller method.

What are three new features in the most recent Salesforce release?

Sales Cloud

• Contact Management.
• Opportunity Management.
• Lead Management.
• Reports and Dashboards.
• Salesforce Mobile.
• Email Integration.
• Sales Forecasting.
• Workflow and Approvals.

What is ViewState asp net?

ViewState in ASP.Net ViewState is a important client side state management technique. ViewState is used to store user data on page at the time of post back of web page. ViewState does not hold the controls, it holds the values of controls. It does not restore the value to control after page post back.

What type of a programming language is Apex?

object

What is a future method?

A future method runs in the background, asynchronously. You can call a future method for executing long-running operations, such as callouts to external Web services or any operation you'd like to run in its own thread, on its own time. Each future method is queued and executes when system resources become available.

What is heap size in Salesforce?

Salesforce heap size is the count of memory used by the variables, object instances in an Apex class. In order to store these objects & variables, memory is allocated in Salesforce which is derived from allocated Heap.

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.

Can we call future method from batch apex?

No, We cannot call future methods directly from batch apex but we can call a web service from batch class and that web service can call the @future method. Also, we can call the future method from finish method in the batch class.

What programming language is Salesforce written in?

Java

What is remote action in Salesforce?

What is Remote Action function in Salesforce? Remote action function in salesforce allows user to access any method from any class through javasrcipt methods, and get the result as a javascript object for further manipulation. Remote action method should have @RemoteAction annotation.

What does the transient keyword do?

The Java transient keyword is used on class attributes/variables to indicate that serialization process of such class should ignore such variables while creating a persistent byte stream for any instance of that class. A transient variable is a variable that can not be serialized.

How long is field history retained?

Field history data is retained for up to 18 months through your org, and up to 24 months via the API. You can track the field history of custom objects and the following standard objects.

What is wrapper class in Salesforce?

Wrapper Class in Apex Salesforce : A wrapper or container class is a class, a data structure, or an abstract data type which contains different objects or collection of objects as its members. A wrapper class is a custom object defined by programmer wherein he defines the wrapper class properties.