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[WASM] [Net 6 Preview 4] RadzenDataGrid Filter Exception Error #123

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opened 2026-01-29 17:31:56 +00:00 by claunia · 1 comment
claunia commented 2026-01-29 17:31:56 +00:00
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Originally created by @rblanca on GitHub (Jun 15, 2021).

Describe the bug
Using Any Filter option in RadzenDataGrid its results in an "System.Exception: Specific method not found: FirstOrDefault". My apologies if the error it's not related to Radzen Team due the fact that I'm using a preview version of the runtime.

To Reproduce
Steps to reproduce the behavior:

  1. Create a simple RadzenDataGrid
  2. Use the Filter option in the DataGrid
  3. See the error

Expected behavior
It should not have crash

Screenshots
image

Desktop (please complete the following information):

  • OS: Windows 10
  • Browser: Edge
  • Version 91

Additional context

Here is the simple code I've used

	<RadzenDataGrid @ref="gridUserDTO" Data="@users" TItem="UserDTO" AllowFiltering="true" AllowColumnResize="true" AllowSorting="true" PageSize="10" EmptyText="No hay datos a mostrar." LogicalFilterOperator="LogicalFilterOperator.Or"  Style="height:400px; width:100%;">
	<Columns>
		<RadzenDataGridColumn TItem="UserDTO" Property="Id" Title="Id"  Width="30%"/>
		<RadzenDataGridColumn Context="_context" TItem="UserDTO" Property="Name" Title="Nombre" Width="30%">
			<Template Context="user">
				@user.Name
			</Template>
			<EditTemplate Context="user">
				<RadzenTextBox @bind-Value="@user.Name"  />
			</EditTemplate>
		</RadzenDataGridColumn>
	</Columns>
	</RadzenDataGrid>
</RadzenCard>

@code {

	string selectedUserId { get; set; }
	IEnumerable<UserDTO> users { get; set; } = new List<UserDTO>();

	RadzenDataGrid<UserDTO> gridUserDTO;
Originally created by @rblanca on GitHub (Jun 15, 2021). **Describe the bug** Using Any Filter option in RadzenDataGrid its results in an "System.Exception: Specific method not found: FirstOrDefault". My apologies if the error it's not related to Radzen Team due the fact that I'm using a preview version of the runtime. **To Reproduce** Steps to reproduce the behavior: 1. Create a simple RadzenDataGrid 2. Use the Filter option in the DataGrid 3. See the error **Expected behavior** It should not have crash **Screenshots** ![image](https://user-images.githubusercontent.com/37780410/122096437-f1543f80-cde4-11eb-9a8d-e5bc994915d6.png) **Desktop (please complete the following information):** - OS: Windows 10 - Browser: Edge - Version 91 **Additional context** Here is the simple code I've used ```<RadzenCard class="mt-4"> <RadzenDataGrid @ref="gridUserDTO" Data="@users" TItem="UserDTO" AllowFiltering="true" AllowColumnResize="true" AllowSorting="true" PageSize="10" EmptyText="No hay datos a mostrar." LogicalFilterOperator="LogicalFilterOperator.Or" Style="height:400px; width:100%;"> <Columns> <RadzenDataGridColumn TItem="UserDTO" Property="Id" Title="Id" Width="30%"/> <RadzenDataGridColumn Context="_context" TItem="UserDTO" Property="Name" Title="Nombre" Width="30%"> <Template Context="user"> @user.Name </Template> <EditTemplate Context="user"> <RadzenTextBox @bind-Value="@user.Name" /> </EditTemplate> </RadzenDataGridColumn> </Columns> </RadzenDataGrid> </RadzenCard> @code { string selectedUserId { get; set; } IEnumerable<UserDTO> users { get; set; } = new List<UserDTO>(); RadzenDataGrid<UserDTO> gridUserDTO; ```
claunia commented 2026-01-29 17:31:57 +00:00
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@enchev commented on GitHub (Jun 16, 2021):

Hi @rblanca,

The issue is related to https://github.com/zzzprojects/System.Linq.Dynamic.Core/. Maybe it's already fixed however we plan to upgrade to .NET 6 when we have at least CTP.

@enchev commented on GitHub (Jun 16, 2021): Hi @rblanca, The issue is related to https://github.com/zzzprojects/System.Linq.Dynamic.Core/. Maybe it's already fixed however we plan to upgrade to .NET 6 when we have at least CTP.
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Reference: starred/radzen-blazor#123
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