Dropdown list filter

Radzen.Blazor Components
1

Hellow:

I have a list of DTO, the DTO includes three items: DTO {nameId (int), fullName(string), shortName(string)}, the bind-Value

List selectNameId = new string[1];

I created a dropdown list with multiple selection, I used

         <FilterTemplate>
                <RadzenDropDown @bind-Value="@selectNameId" TextProperty="shortName" ValueProperty="nameId" Style="width:100%"
                                                                            Change=@(args => OnChangeAsync(args, "DropDown with multiple selection"))
                                                                          Data="listOfSystemTypes" Multiple="true" />
          </FilterTemplate>

then function is:
protected async System.Threading.Tasks.Task OnChangeAsync(object value, string name)
{
object value is selected nameId (int)
selectNameId = How to transfer value to string list here and assign to selectNameId ?????????
}

My problem is how to convert value to list of selectNames and assign to selectNames

2

Your Data property is a list of objects with id and name

3

yes, I try to use name to be displayed in dropdown list. when a user select names, then the id(s) will be taken to select data from data table.