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Grid does not show all rows when refreshing ObservableCollection

There appears to be an issue, when EnableVirtualization is set to TRUE and a grid is bound to an ObservableCollection, where the number of rows displayed decreases each time the collection is repopulated with the same data.

In the attached example, click REFRESH and each time you will see the number of rows decrease, even though the data is the same each time.

How can I show all rows when the ObservableCollection is repopulated with data?

4 Replies 1 reply marked as answer

PH Phil January 19, 2023 02:25 PM UTC

Missing file attached.

Attachment: Demo_f059dd5d.zip

PH Phil January 19, 2023 02:27 PM UTC

Is there any solution to this bug?

NP Naveen Palanivel Syncfusion Team January 19, 2023 05:13 PM UTC

Hi Phil ,

We have confirmed this as an issue and logged the defect report “Virtualization Grid does not show all rows , its disappear when adding a new set of data with ObservableCollection” for the same. Thank you for taking time to report this issue and helping us to improve our product. At Syncfusion, we are committed to fix all validated defects (subject to technological feasibility and Product Development Life Cycle) and this fix will be included in our upcoming patch release which is expected to be rolled out on or before 8th    Feb, 2023.

You can now track the current status of your request, review the proposed resolution timeline, and contact us for any further inquiries through this link.       


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”


Naveen Palanivel

NP Naveen Palanivel Syncfusion Team February 3, 2023 05:00 AM UTC

Hi Phil,

We are glad to announce that, we have included fix for the issue “ Virtualization Grid does not show all rows , its disappear when adding a new set of data with ObservableCollection” in our release (  So please upgrade to our latest version of Syncfusion NuGet package to resolve the reported issue. Please find the Nuget package for latest fixes and features from below.

Nuget : https://www.nuget.org/packages/Syncfusion.Blazor.Grid

We thank you for your support and appreciate your patience in waiting for this release. Please get in touch with us if you would require any further assistance. 

Please let us know if you have any concerns.

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