Cast error in Datagrid

[jose luis barajas]

Hi, I am using version 18.4.0.48 with Wasm project...

When I set Property FrozenColumns in Datagrid with AllowGrouping = true, I get one exception (see below...)

When I don´t use the FrozenColumns property there is no error and it works fine.

My code...

 <SfGrid @ref="gridConsulta"

                                            DataSource="@dataSourceDTO"

                                            FrozenColumns="4"

                                            ShowColumnChooser="true"

                                            AllowPaging="false"

                                            AllowSorting="true"

                                            AllowFiltering="true"

                                            AllowGrouping="true"

                                            Width="auto"

                                            RowHeight="20" Height="400"

                                            AllowSelection="true"

                                            AllowExcelExport="true"

                                            AllowReordering="true">

                                        <GridEditSettings AllowEditing="false"></GridEditSettings>

                                        <GridEvents TValue="ExpedienteColumnDataDTO" 

                                                    RowDataBound="GridTicketsRowBound"></GridEvents>

                                        <GridColumns>

...

I get this exception

blazor.webassembly.js:1 crit: Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer[100]

      Unhandled exception rendering component: Specified cast is not valid.

System.InvalidCastException: Specified cast is not valid.

   at Syncfusion.Blazor.Grids.Internal.GridRowBase`1.<OnParametersSetAsync>d__50[[WEBAPI.Shared.ExpedienteColumnDataDTO, WEBAPI.Shared, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].MoveNext()

   at Microsoft.AspNetCore.Components.ComponentBase.CallStateHasChangedOnAsyncCompletion(Task task)

d.printErr @ blazor.webassembly.js:1

2blazor.webassembly.js:1 crit: Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer[100]

      Unhandled exception rendering component: Object reference not set to an instance of an object.

System.NullReferenceException: Object reference not set to an instance of an object.

   at Syncfusion.Blazor.Grids.Internal.PropertyInfoHelper.CreateAccessor(PropertyInfo propertyInfo)

   at Syncfusion.Blazor.Grids.Internal.PropertyInfoHelper.GetAccessor(String name, IDictionary`2 cache, Object from)

   at Syncfusion.Blazor.Grids.Internal.PropertyInfoHelper.GetFieldValue(String nameSpace, Object from, IDictionary`2 cache)

   at Syncfusion.Blazor.Grids.Internal.PropertyInfoHelper.GetObject(String nameSpace, Object from)

   at Syncfusion.Blazor.Grids.Internal.GridCellBase`1[[WEBAPI.Shared.ExpedienteColumnDataDTO, WEBAPI.Shared, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].GetValue()

   at Syncfusion.Blazor.Grids.Internal.GridCellBase`1.<OnParametersSetAsync>d__28[[WEBAPI.Shared.ExpedienteColumnDataDTO, WEBAPI.Shared, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].MoveNext()

   at Microsoft.AspNetCore.Components.ComponentBase.CallStateHasChangedOnAsyncCompletion(Task task)

   at Microsoft.AspNetCore.Components.ComponentBase.RunInitAndSetParametersAsync()

d.printErr @ blazor.webassembly.js:1

blazor.webassembly.js:1 crit: Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer[100]

      Unhandled exception rendering component: Specified cast is not valid.

System.InvalidCastException: Specified cast is not valid.

   at Syncfusion.Blazor.Grids.Internal.GridCellBase`1.<OnParametersSetAsync>d__28[[WEBAPI.Shared.ExpedienteColumnDataDTO, WEBAPI.Shared, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].MoveNext()

   at Microsoft.AspNetCore.Components.ComponentBase.CallStateHasChangedOnAsyncCompletion(Task task)

   at Microsoft.AspNetCore.Components.ComponentBase.RunInitAndSetParametersAsync()

Please help!

[Rahul Narayanasamy]

Hi Jose, 

Greetings from Syncfusion. 

Query: Cast error in Datagrid - When I set Property FrozenColumns in Datagrid with AllowGrouping = true, I get one exception (see below...) When I don´t use the FrozenColumns property there is no error and it works fine. 

We have validated your query and you are facing problem while using Grid frozen columns feature with Grouping. We would like to inform you that the Grouping feature is not supported with frozen rows and columns feature. 

Find the below documentation link for your reference. 

Reference: 

https://blazor.syncfusion.com/documentation/datagrid/scrolling/#limitations  

Please let us know if you have any concerns. 

Regards, 

Rahul