Скачать или смотреть Resolving the BusinessEntityCollection Error in Dynamics CRM Plugin Development

Discover common pitfalls in Dynamics CRM plugin development, particularly with the `BusinessEntityCollection` error, and learn effective solutions to ensure successful implementation.
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Understanding the BusinessEntityCollection Error in Dynamics CRM

When working with Microsoft Dynamics CRM, developers often encounter various challenges in plugin development. One common issue that arises during the creation of plugins for virtual entities involves the error message stating that "OutputParameters must contain a property called 'BusinessEntityCollection' of type Microsoft.Xrm.Sdk.EntityCollection for SDK message RetrieveMultiple." This message can be quite confusing and frustrating. In this post, we will explore the nature of this problem and provide a step-by-step solution to effectively resolve it.

The Problem

While creating a plugin intended to handle virtual entities, many developers face the challenge of properly parsing an EntityCollection to the PluginExecutionContext within the Microsoft.Xrm.Sdk framework. Let's break down what leads to the error.

Key Points You Need to Know

Async Programming: The code execution involves async and await constructs. Any missed await can lead to incomplete execution.

EntityCollection: The output parameters must include a property for BusinessEntityCollection, which can lead to complications if not populated correctly.

Error Message Confusion: The error message may not clearly indicate the true nature of the problem, leading to unnecessary troubleshooting efforts.

Troubleshooting the Error

To effectively address this error, we need to ensure that our asynchronous code is correctly implemented. Here’s a brief overview of the necessary code and adjustments required:

Code Implementation

Here's how a typical code snippet may look when you're processing the data and preparing to populate EntityCollection:

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

Common Mistakes in Implementation

Missing await: Ensure all async calls are awaited properly to guarantee that operations finish before subsequent code execution proceeds. If any calls are not awaited during this process, it may result in uninitialized variables, which in this case affects the BusinessEntityCollection property.

Solution Steps

Locate the Async Call: Examine your Async functions to confirm that every task that is supposed to be awaited is indeed doing so.

Implement await: Add or correct any missing await statements in your code.

Test Your Plugin: After making adjustments, recompile your plugin and test it in the Dynamics CRM environment to verify that the error no longer appears.

Conclusion

Understanding the error associated with BusinessEntityCollection can streamline the plugin development process in Microsoft Dynamics CRM. The key takeaway is the importance of properly managing asynchronous operations. If you encounter this error in your plugin development endeavors, remember to check for missed asynchronous awaits first.

By implementing the recommended changes, you can prevent this error from affecting your CRM projects and enhance the overall stability of your plugins. Happy coding!