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Bug Report T297639
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The TokenLookupEdit control uses the DisplayMember property value instead of the ValueMember one in the filter

created 9 years ago (modified 9 years ago)

Hello,

I am using LookUpEdit control for WPF (as TokenLookupEdit). The build I am using is 15.1.7. I have created a demo project which will reproduce this issue. My scenario is as follows.

1- I have a student collection which is set to ItemsSource of LookupEdit control.
2- Each student has Id, FirstName, and LastName field. Id is the unique identifier for the student, but I have set LastName as DisplayMember for LookupEdit control.
3- Multiple students can have same last name (Real world scenario).
4- Now when I type a common LastName (e.g. Muller in attached project) it shows the correct filtering behavior. But as soon as I have selected a first record, and tries to type again (Muller) the popup grid shows strange behavior and no record is shown however there should be 2 more records.
5- Moreover the selected EditValue also shows invalid Id(s) in this case, same Id(s) for different selection. Please have a look on SelectedStudents in viewmodel.

Could you please help me out that how to handle this scenario?

Regards

Comments (2)
DevExpress Support Team 9 years ago

    Hello Shahab,

    Thank you for providing the test project. I was able to replicate this problem on our side. I will forward this ticket to our R&D team, and we will contact you as soon as we have any results.

    Thanks,
    Elliot

    SA SA
    Shahab Ashraf 9 years ago

      Thanks Elliot for your response.

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      Answers approved by DevExpress Support

      created 9 years ago

      We have fixed the issue described in this ticket and will include the fix in our next maintenance update. To apply this solution before the official update, request a hotfix by clicking the corresponding link for product versions you require.

      Note: Hotfixes may be unavailable for beta versions and updates that are about to be released.

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