How can I clear a large amount of items from a RadzenDropdown list?

Radzen.Blazor Components
1

I'm deselecting the current selected item and then using the Clear method to clear the list, but it still doesn't clear it effectively.

<RadzenDropDown Name="SelectProcedimentoCirurgicoTUSS"
                AllowClear="true"
                AllowFiltering="true"
                FilterCaseSensitivity="FilterCaseSensitivity.CaseInsensitive"
                Data="listProcedimentosCirurgicosTUSS"
                @bind-Value="modelDadosCirurgia.vProcedimentoTUSS"
                Placeholder="Select one option..."
                TextProperty="DS_PROCEDIMENTO"
                ValueProperty="DS_PROCEDIMENTO"
                TValue="string"
                AllowVirtualization="true"
                VirtualizationOverscanCount="1"
                @ref="dropdownProcedimentoPrincipalTUSS"
                class="w-100 mr-1" />

modelDadosCirurgia.vProcedimentoTUSS = "";

listProcedimentosCirurgicosTUSS.Clear();

StateHasChanged();
2

Not sure what that means. You have only two options either use Clear() or set listProcedimentosCirurgicosTUSS to null.