When the FormItem has a property of another class, I get an error when I try to display a form group.

[Roberto Perdomo]

I'm trying to create a form group and when I use those lines in the rectangle I get an error in the UI.

The structure of my classes:

The error:

can someone help me to find a way to solve this?

[Kokila Poovendran]

Hi Roberto Perdomo,

We have already considered the reported issue “Exception occurs during complex type validation" as a bug from our end and the fix for the issue will be included with our upcoming patch release ,which is expected to be rolled out in mid-February 2024. Now you can track the status of the reported issue through the feedback below,

Feedback Link:https://www.syncfusion.com/feedback/50207/exception-occurs-during-complex-type-validation

Disclaimer: “Inclusion of this solution in the weekly release may change due to other factors including but not limited to QA checks and works reprioritization.”

[Kokila Poovendran]

Hi Roberto Perdomo,

To ensure thorough validation of complex models, it is necessary to apply the ValidateComplexType attribute in conjunction with the ObjectGraphDataAnnotationsValidator. This combination allows for comprehensive validation of the entire object graph of the model, as detailed in the official Microsoft documentation. Furthermore, when working with the DataForm component, it is advisable to employ a common abstract class as the base class for both the Model class associated with the DataForm and its dependent classes, as outlined in our UG documentation. Additionally, we have provided a sample for your reference.

Sample:https://blazorplayground.syncfusion.com/BjhJtsrOfsTVMfNH