Aggregates in Grid

Question

Hi there! Working with aggregations in the Grid in Release mode the grid does not show the data and throws the error:

Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer[100]

Unhandled exception rendering component: This operation is only valid on generic types.

System.InvalidOperationException: This operation is only valid on generic types.

at System.RuntimeType.GetGenericTypeDefinition () <0x383def8 + 0x0001c> in <filename unknown>:0

at Syncfusion.Blazor.Grids.SfGrid`1[TValue].IsObservableCollection (System.Object data) <0x5f1e230 + 0x00016> in <filename unknown>:0

at Syncfusion.Blazor.Grids.SfGrid`1[TValue].CollectionDisposeMethod (System.Object data) <0x5f1e1c0 + 0x00006> in <filename unknown>:0

at Syncfusion.Blazor.Grids.Internal.GridContent`1[TContent].System.IDisposable.Dispose () <0x5f25e88 + 0x00010> in <filename unknown>:0

at Microsoft.AspNetCore.Components.Rendering.ComponentState.TryDisposeInBatch (Microsoft.AspNetCore.Components.Rendering.RenderBatchBuilder batchBuilder, System.Exception& exception) <0x41eff60 + 0x0002c> in <filename unknown>:0

It is strange because in debug mode the Grid render the data and shows the Aggregates.
Thanks

Vignesh Natarajan · Accepted Answer

Hi Adriana,

Thanks for sharing the requested details

Query: “Working with aggregations in the Grid in Release mode the grid does not show the data and throws the error:”

We have validated the reported query as per your suggestion and we are able to reproduce the reported issue at our end also. We suggest you to resolve the reported issue by including the below highlighted line in csproj file under PropertyGroup tag.

[BlazorApp1.csproj]

<TargetFramework>netstandard2.1</TargetFramework>

<BlazorWebAssemblyEnableLinking>false</BlazorWebAssemblyEnableLinking>

</PropertyGroup>

Refer the below documentation for your reference

https://docs.microsoft.com/en-us/aspnet/core/blazor/host-and-deploy/configure-linker?view=aspnetcore-3.1#control-linking-with-an-msbuild-property

https://github.com/mono/mono/issues/12917

Please get back to us if you have further queries.

Regards,

Vignesh Natarajan

Vignesh Natarajan · Answer

Hi Adriana,  
 
Thanks for contacting Syncfusion support.  
 
Query: “there! Working with aggregations in the Grid in Release mode the grid does not show the data and throws the error:” 
 
We have analyzed the reported query and we understand that you are facing issue in release mode with aggregates. The reported issue might occur when datasource is returned wrongly from server for remote datasource. So kindly share the following details to validate the reported query at our end.  
 

Share the Grid code example. 
Share the details about the datasource along with the Adaptor type (in case of remote data)
Share your Syncfusion.Blazor Nuget package version details.
In case of remote data. Have you handled the aggregates in server side. 
If possible share a simple issue reproducible sample. 
 
Above requested details will be very helpful for us to validate the reported query at our end and provide solution as early as possible.  
 
Regards, 
Vignesh Natarajan

Adriana Selena Tito Ilasaca · Answer

1. I copied the sample code from Documentation2. As in the documentation the DataSource comes from a list 3. Version 18.4.0.42Just to add in csproj ->  netstandard2.1