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The view state limit in Visualforce is a Salesforce platform limitation and cannot be directly removed or bypassed. However, there are techniques you can employ to reduce the view state size and optimize your Visualforce pages to avoid hitting the view state limit. Here are some strategies:
1. Minimize Data Binding:
- Avoid binding unnecessary fields and properties in your Visualforce page.
- Use lazy loading or partial page rendering techniques to load data dynamically when needed.
2. Use Custom Controllers or Controller Extensions:
- Utilize custom controllers or controller extensions to limit the amount of data included in the view state.
- Load data programmatically in the controller rather than binding it directly in the Visualforce page.
3. Use StandardSetController for Large Data Sets:
- When working with large data sets, consider using the StandardSetController class, which provides built-in pagination and reduces the view state size.
4. Utilize Custom Pagination:
- Implement custom pagination logic using Apex controllers to fetch and display a limited number of records at a time.
- Use techniques like server-side pagination or lazy loading to minimize the amount of data included in the view state.
5. Avoid Nested Components:
- Minimize the use of nested components, as each component adds its own view state to the overall page view state.
6. Use Transient Variables:
- Declare variables as transient in the controller that do not need to be stored in the view state.
- Transient variables are not included in the view state, helping to reduce its size.
7. Consider Storing Data in Session or Cache:
- If feasible, store frequently accessed data in session variables or cache instead of including them in the view state.
8. Compress and Optimize Visualforce Markup:
- Minimize the use of unnecessary whitespace and comments in your Visualforce markup.
- Leverage HTML compression techniques or tools to reduce the size of the rendered HTML.
Remember, it's essential to carefully evaluate your application's requirements and implement the above strategies based on your specific use case. By optimizing your Visualforce pages and reducing the view state size, you can mitigate the risk of hitting the view state limit and enhance the performance of your application.