GridHeaderComponent is null when I press apply button on a custom filter

[AlexeyBoyko]

Hello, I am facing quite the same problem as described in this closed issue: #87
I am using the latest version of GridBlazor (3.5.2) and strictly follow the documented instructions.
Could you please check if this old issue had resumed at some point after version 1.3.17 (where it was obviously fixed)?

[AlexeyBoyko]

By the way, I've made a comparison of the code introduced by this commit (65b0caa) which meant to fix the #87 issue and it seems that the current state of respective code isn't much different, except for the the variable _sequence which was eliminated since and replaced with explicit numbers. So, if it is broken then it must be for some other reason... so I wonder what could it be?

[AlexeyBoyko]

P.S. Just in case, my app is server-side Blazor, while in the original issue it was probably client side WASM (judging by the link to documentation provided in the question).

[gustavnavar]

I've tested some examples with custom filters in a server-side Blazor project. But they work fine.

By the way there is published sample here. The Customer column uses a custom filter with no errors.

Could you send a sample project including a grid that produces the error?

[AlexeyBoyko]

Thank you for the answer. I attach page's razor and cs files and the filter widget component.
dropDownFilter.zip. If the reason for the bug is not clear from these sources, I can make a separate sample project, just let me know.

[gustavnavar]

You are using UserGroup as generic type parameter of the DropdownFilter class in the page Users.razor.cs:

_customFilters.Add(filterWidgetName, typeof(DropdownFilter<UserGroup>));

You must use UserViewModel as generic type parameter:

 _customFilters.Add(filterWidgetName, typeof(DropdownFilter<UserViewModel>));

[gustavnavar]

By the way, I recommend using a new database context and a new repository for the GridCoreServer constructor for Server Blazor projects, mainly for CRUD support.

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[AlexeyBoyko]

Thank you kindly, it works!