What do you mean by view state?
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 causes invalid viewstate?
The error message is caused by some exception being thrown when the view state is being processed. The problem is that the exception is being consumed, and its details are lost in the error message. By using a debugger, you can determine the original exception.
What is ViewState explain with the help of example?
This article describes ASP.NET view state and shows with an example how view state works in ASP.NET. View State is the method to preserve the Value of the Page and Controls between round trips. It is a Page-Level State Management technique.
What is view state error?
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 does ViewState work?
View State is the method to preserve the Value of the Page and Controls between round trips. It is a Page-Level State Management technique. View State is turned on by default and normally serializes the data in every control on the page regardless of whether it is actually used during a post-back.
How do I fix 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 on a page.
- Refine your SOQL to retrieve only the data needed.
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).
Why do I get a view state corrupted error message?
In some cases, this view state can get quite large and be a potential source of problems. Some browsers cannot handle such a large hidden field (and the resulting large request), and the browsers may truncate the view state. Truncating the view state causes a “view state corrupted” error message.
What causes a view state error in ASP NET?
In this scenario, the following procedure will cause a view state error to occur: 1 A user browses a page. 2 The worker process that hosts the ASP.NET application recycles. 3 The user posts back the page. More
Is it possible to debug problems with view state?
However, issues relating to view state can be difficult to debug. In most cases, when problems with view state occur, you receive the following error message in the Web browser, with little indication of what might be causing the issue: This article describes some techniques that can be used for debugging and for resolving problems with view state.
What is an invalid view state error message?
Unfortunately, the invalid view state error message that is mentioned in the “Overview” section of this article is not very informative. The error message is generally caused by some exception being thrown when the view state is being processed. The problem is that the exception is being consumed, and its details are lost in the error message.