How to Fix SyncFusion Grid with Custom Binding for Loading Spinners in React syncfusion grid

Learn how to effectively manage loading spinners in a SyncFusion grid with custom binding in React, resolving common issues that arise during initial data requests and subsequent interactions.
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Troubleshooting SyncFusion Grid Spinners in React

If you're a developer working with SyncFusion's grid component in a React application, you may have encountered challenges with displaying loading spinners during data requests. In this guide, we will address a common issue faced by many developers: how to ensure that your SyncFusion grid shows or hides loading spinners properly.

Understanding the Problem

When integrating SyncFusion's grid with custom binding in React, users often run into two specific issues regarding the loading spinner:

Spinner Doesn't Show on Initial Data Load: Despite correctly implementing side-effects using Redux to manage loading states, the spinner fails to appear when you initially request data for the grid.

Spinner Doesn't Hide After Data is Loaded: After the initial data load, the spinner may persist on the grid indefinitely, especially when additional row-detail templates are used. The spinner only disappears when certain interactions, like clicking an external button, are performed.

This situation can be frustrating, especially when the loading behavior is inconsistent after subsequent data requests, such as paging or sorting.

Exploring the Solution

Let’s break down how to solve these issues effectively.

1. Review Your Redux Setup

Your Redux slice should correctly manage the loading state. Here’s an overview of how the slice you provided is structured:

Initial State: Make sure your initial state has an isLoading property set to false.

Async Thunks: When data is being fetched, ensure that the isLoading state is set to true, and on success or failure, it is set back to false. Check the provided slice to confirm that you are handling the pending, fulfilled, and rejected cases properly.

2. Ensure Proper Event Handling in the Component

In your component, you need to manage the spinner's visibility effectively based on the isLoading state. Here’s how to handle it:

Using useEffect: Implement the loading spinner handling in a useEffect that listens for changes in the isLoading state of your Redux store:

[[See Video to Reveal this Text or Code Snippet]]

3. Check for Grid References

Ensure that you correctly set the reference for your grid instance. When using the grid's referential API to show or hide the spinner, you must ensure myGridInstanceRef is not null. This prevents potential errors when the component tries to call methods on it.

4. Managing Row-Details and Templates

If you notice that the spinner behaves erratically after implementing row-detail templates, it could be that the lifecycle management of these templates is interfering with the loading state. It's essential to evaluate any custom templates or handlers you might be using to ensure they do not unintentionally trigger spinner behavior inconsistently.

5. Handling External Components

In cases where the spinner behaves correctly only after clicking an external component (like a column chooser button), you can force the spinner to hide after such actions, as demonstrated in your columnChooserClick function:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

By carefully managing the loading state within your Redux setup and ensuring that your react component properly responds to these states, you can resolve the common issues of loading spinner behavior in SyncFusion grids. This not only improves the user experience on initial data requests but also maintains consistency during subsequent interactions.

If you continue to face challenges, consider seeking help from the SyncFusion community or visiting their documentation to explore additional configuration options.