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Ticket T296111
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DxErrorProvider - How to use it for properties marked with the 'Required' attribute

created 9 years ago

[DevExpress Support Team: CLONED FROM T266518: DataLayoutControl - Databinding Problem with LookupEdit and Complex Object]
Okay I have one more question related to databinding a property that is a complex object and required attributes.
I have the property defined as this…

C#
[Required()]  
public WagePaymentMethod ClaimantWagePaymentMethod  
{  
   get { return GetProperty(wagePaymentMethodProperty); }  
   set  
   {  
       SetProperty(wagePaymentMethodProperty, value);  
   }  
}

However, the dxErrorProvider is not enforcing this required attribute for the LookUpEdit control bound to this.  Why?  Is there a trick to get that type of scenario to work?

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Answers approved by DevExpress Support

created 9 years ago

Hello Mark,
Business objects must implement the DevExpress.XtraEditors.DXErrorProvider.IDXDataErrorInfo interface to provide error information for DXErrorProvider. Attached is a small sample that illustrates how to use it with the Complaint  class.
Please review it and let me know if this approach suits your needs.

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