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RadzenDataGrid CheckBoxList Filter is not showing all cell values #1336

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opened 2026-01-29 17:52:15 +00:00 by claunia · 2 comments
claunia commented 2026-01-29 17:52:15 +00:00
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Originally created by @Lyra1337 on GitHub (Aug 7, 2024).

Describe the bug
When FilterMode="FilterMode.CheckBoxList" is chosen, there are only shown 14, sometimes 17 (after scrolling a few times) entries shown in the filter dropdown.

To Reproduce
Steps to reproduce the behavior:

  1. Go to CheckBoxList Example
  2. Click on Page 5
  3. See Value "10268" in column "Order ID" at the first row displayed
  4. Click on filter icon on column header of "Order ID"
  5. There is no way to select Value "10268".

Expected behavior
It is expected to see all values displayed in this column

Screenshots
screenshot

Happens in any tested Browser (FireFox, Chrome), happens on latest version.

Originally created by @Lyra1337 on GitHub (Aug 7, 2024). **Describe the bug** When `FilterMode="FilterMode.CheckBoxList"` is chosen, there are only shown 14, sometimes 17 (after scrolling a few times) entries shown in the filter dropdown. **To Reproduce** Steps to reproduce the behavior: 1. Go to [CheckBoxList Example](https://blazor.radzen.com/datagrid-checkboxlist-filter) 2. Click on Page 5 3. See Value "10268" in column "Order ID" at the first row displayed 4. Click on filter icon on column header of "Order ID" 5. **There is no way to select Value "10268".** **Expected behavior** It is expected to see all values displayed in this column **Screenshots** ![screenshot](https://github.com/user-attachments/assets/b2cfdcf8-580f-4078-9b8d-e6a84c90f7db) Happens in any tested Browser (FireFox, Chrome), happens on latest version.
claunia commented 2026-01-29 17:52:16 +00:00
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@Lyra1337 commented on GitHub (Aug 7, 2024):

I've done some debugging and the LoadFilterValues method is called always with the LoadDataArgs filled with Top = 14.

Is there an option to modify the LoadDataArgs passed to theRadzenDropDown?

@Lyra1337 commented on GitHub (Aug 7, 2024): I've done some debugging and the `LoadFilterValues` method is called always with the `LoadDataArgs` filled with Top = 14. Is there an option to modify the `LoadDataArgs` passed to the`RadzenDropDown`?
claunia commented 2026-01-29 17:52:16 +00:00
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@enchev commented on GitHub (Aug 7, 2024):

The ListBox used in this filter is virtualized and will load more values when you scroll:
https://github.com/radzenhq/radzen-blazor/blob/master/Radzen.Blazor/RadzenDataGridHeaderCell.razor#L150

UPDATE: I saw what you are referring - it will be fixed in our next update before the end of the week.

@enchev commented on GitHub (Aug 7, 2024): The ListBox used in this filter is virtualized and will load more values when you scroll: https://github.com/radzenhq/radzen-blazor/blob/master/Radzen.Blazor/RadzenDataGridHeaderCell.razor#L150 UPDATE: I saw what you are referring - it will be fixed in our next update before the end of the week.
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Reference: starred/radzen-blazor#1336
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