Inherit a RadzenDataGrid in Radzen Blazor Studio

Radzen Blazor Studio
1

In Radzen Blazor Studio, when defining a component by inheriting from RadzenDataGrid (here in SOURCE mode):

  @typeparam TItem
  @using Radzen
  @using Radzen.Blazor
  @inherits RadzenDataGrid<TItem>
  <div>
      -------
  </div>
  @{
      // Display the base RadzenDataGrid that we are inheriting from.
      base.BuildRenderTree(__builder);
  }

An error “'string' is not a member of type 'Radzen.Server.Arg0'” occurs in DESIGN mode.
The same code works when inheriting from “RadzenSpeechToTextButton” in place of “RadzenDataGrid”.
I am doing something wrong.
Note that I can still use the new component elsewhere in my application, but fixing the issue will permit to use Radzen Blazor Studio in DESIGN mode.
Thank you very much.
Hervé

2

Try this instead:

  @typeparam TItem
  @using Radzen
  @using Radzen.Blazor
  @inherits RadzenDataGrid<TItem>
  <div>
      -------
  </div>

  @{
    base.BuildRenderTree(__builder);
  }

  @code {
#if RADZEN
    protected override void OnDataChanged()
    {
        KeyProperty = null;

        base.OnDataChanged();
    }
#endif
  }

Setting the KeyProperty to null will avoid the design time exception.

3

Thank you very much.
Hervé

4

Hi
the override cause the UI of the grid fall into infinite loading in design time, is this normal?
im asking this is because of I have a master detail page using my base grid causing error of the Studio

Untitled
Untitled1226×375 24.6 KB

Thank you
Lee