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2
Votes

Using FilterType.Excel is causing an exception for string columns with null values

Good morning,

Using GridFilterSettings with FilterType.Excel is causing an "Object reference not set to an instance of an object" exception when opening the filter on a string column that contains nulls. This issue has started occurring in 24.1.45, and is resolved by reverting to 24.1.44.

Here is the stack trace:


System.NullReferenceException: Object reference not set to an instance of an object.
   at Syncfusion.Blazor.Grids.Internal.FilterCheckBoxRenderer`1.UpdateCheckBoxDataItems(IEnumerable`1 CheckboxData, Boolean isForeignDataEmpty)
   at Syncfusion.Blazor.Grids.Internal.FilterCheckBoxRenderer`1.UpdateDataSource(Boolean isInputSearch, IEnumerable`1 customFilterData, Int32 filterChoiceCount)
   at Syncfusion.Blazor.Grids.Internal.FilterCheckBoxRenderer`1.OpenFilterDialog(String XPosition, String YPosition)
   at Syncfusion.Blazor.Grids.Internal.FilterCheckBoxRenderer`1.DialogCreated()
   at Microsoft.AspNetCore.Components.ComponentBase.CallStateHasChangedOnAsyncCompletion(Task task)
   at Syncfusion.Blazor.Popups.SfDialog.OnAfterScriptRendered()
   at Syncfusion.Blazor.SfBaseComponent.OnAfterRenderAsync(Boolean firstRender)
   at Syncfusion.Blazor.Popups.SfDialog.OnAfterRenderAsync(Boolean firstRender)
   at Microsoft.AspNetCore.Components.RenderTree.Renderer.GetErrorHandledTask(Task taskToHandle, ComponentState owningComponentState)

Disabling "Just my Code" in debugging exceptions shows me that the line in FilterCheckBoxRenderer giving the exception is:

string text2 = obj2.ToString();


Thanks,
Tim