Filtering nullable inner object throws NRE [WASM]

[rdadkins]

I am working with this object template:

public class Outer
{
  public string Id { get; set; }

  public Inner Inner { get; set; }
}

public class Inner
{
  public string Value { get; set; }
}

And this table:

<Table TableItem="Outer">
  <Column TableItem="Outer" Title="Inner value" Field="@(x => x.Inner.Value)" Sortable="true" Filterable="true">
    <Template>
      @if (@context.Inner == null)
      {
        <text>N/A</text>
      }
      else
      {
        <a href="" @onclick="@(() => SomeMethod(@context))" @onclick:preventDefault>@context.Inner.Value</a>
      }
    </Template>
  </Column>
</Table>

The table renders fine and the appropriate string filter is detected. However, whenever Outer.Inner is null, a null reference exception is thrown. If I filter the table before hand to make sure Outer.Inner has values, the exception is not thrown.

Here is the exception:

crit: Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer[100] blazor.webassembly.js:1:36074
      Unhandled exception rendering component: Object reference not set to an instance of an object. blazor.webassembly.js:1:36074
System.NullReferenceException: Object reference not set to an instance of an object. blazor.webassembly.js:1:36074
  at (wrapper managed-to-native) System.Reflection.RuntimeMethodInfo.InternalInvoke(System.Reflection.RuntimeMethodInfo,object,object[],System.Exception&) blazor.webassembly.js:1:36074
  at System.Reflection.RuntimeMethodInfo.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) <0x27408c8 + 0x000ce> in <filename unknown>:0 blazor.webassembly.js:1:36074
--- End of stack trace from previous location where exception was thrown --- blazor.webassembly.js:1:36074
<empty string> blazor.webassembly.js:1:36074
  at Microsoft.AspNetCore.Components.ComponentBase.CallStateHasChangedOnAsyncCompletion (System.Threading.Tasks.Task task) <0x2dfa1b8 + 0x000e6> in <filename unknown>:0 blazor.webassembly.js:1:36074
  at Microsoft.AspNetCore.Components.RenderTree.Renderer.GetErrorHandledTask (System.Threading.Tasks.Task taskToHandle) <0x2e00d10 + 0x000c2> in <filename unknown>:0 

[IvanJosipovic]

Thank you for reporting this issue, it should be resolved in v1.8.0