@inject IUserService _UserService;

<Select DataSource="@_ShowStaffs"
        DefaultValue="@StaffId"
        LabelName="@nameof(wispro.sp.entity.Staff.Name)"
        ValueName="@nameof(wispro.sp.entity.Staff.Id)"
        Style="width: 200px"
        Placeholder="请选择"
        IgnoreItemChanges="false"
        EnableSearch="true"
        AllowClear
        OnSelectedItemChanged="OnSelectedItemChangedHandler"
        OnSearch="OnSearch">
</Select>