Bug Report T1085168
Visible to All Users

Core - The CollectionSource.GetCount() method doesn't return the correct value for a filtered Queryable list view

created 3 years ago (modified 3 years ago)

[DevExpress Support Team: CLONED FROM T1084394: Xaf Blazor - Dashboard View - Count record in nested listiview.]

Sorry I have one last question on this.
The controller works perfectly if my view are in data access mode "Client".
Currently in Queryable, the count is not taking the criteria in consideration.

What should I do to get the count if my views are in Queryable dataccess mode ?
A ObjectSpace.GetObjectsCount directly ?

Thanks again for your help.

BR
ISA

Comments (1)
Andrey K (DevExpress Support) 3 years ago

    Hello,

    Please allow us additional time to research why the GetCount() method doesn't return the correct value in this usage scenario. We will update this thread once we have news. Currently, you can use the following code to get the required result:

    C#
    using DevExpress.ExpressApp; using System; using System.Linq; namespace DXApplication1.Module.Blazor.Controllers { public class BlazorDashboardCaptionController : ViewController<ListView> { protected override void OnViewControlsCreated() { base.OnViewControlsCreated(); var listView = this.View; // int count = listView.CollectionSource.GetCount(); var queryCollection = View.CollectionSource.Collection as QueryableCollection; if(queryCollection != null) { int count2 = View.ObjectSpace.GetObjectsCount(View.ObjectTypeInfo.Type, queryCollection.Criteria); } } } }

    Please let me know if this solution meets your requirements.

    Thanks,
    Andrey

    Answers approved by DevExpress Support

    created 3 years ago

    We have addressed the issue described in this ticket and will include a fix in our next maintenance update. Should you need to apply our fix prior to official release, you can request a hotfix here.

    Important Notes:

    • Hotfixes may be unavailable for Early Access/Beta builds or updates set for release within a week.
    • .NET only: in the NuGet Package Manager, use your personal NuGet feed and check the "Include prerelease" option to view the hotfix package in the "Updates" tab.

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