ersatztv/ErsatzTV/Shared/AddCustomResolutionDialog.razor

<MudDialog>
    <DialogContent>
        <EditForm Model="@_model" OnSubmit="@(_ => Submit())">
            <MudElement HtmlTag="div" Class="mt-3">
                <MudTextField Label="Width" @bind-Value="@_model.Width" For="@(() => _model.Width)" Style="min-width: 400px"/>
            </MudElement>
            <MudElement HtmlTag="div" Class="mt-3">
                <MudTextField Label="Height" @bind-Value="@_model.Height" For="@(() => _model.Height)" Style="min-width: 400px"/>
            </MudElement>
        </EditForm>
    </DialogContent>
    <DialogActions>
        <MudButton OnClick="Cancel" ButtonType="ButtonType.Reset">Cancel</MudButton>
        <MudButton Color="Color.Primary" Variant="Variant.Filled" OnClick="Submit">
            Add
        </MudButton>
    </DialogActions>
</MudDialog>


@code {

    [CascadingParameter]
    MudDialogInstance MudDialog { get; set; }

    private readonly ResolutionEditViewModel _model = new();

    private void Submit() =>
        MudDialog.Close(DialogResult.Ok(_model));

    private void Cancel(MouseEventArgs e)
    {
        // this is gross, but [enter] seems to sometimes trigger cancel instead of submit
        if (e.Detail == 0)
        {
            Submit();
        }
        else
        {
            MudDialog.Cancel();
        }
    }

}