@inject StaffGradeService _staffGradeService;

<Select DataSource="@_StaffGrades"
        DefaultValue="@StaffGradeId"
        LabelName="@nameof(wispro.sp.entity.StaffGrade.Grade)"
        ValueName="@nameof(wispro.sp.entity.StaffGrade.Id)"
        Style="width: 200px"
        Placeholder="选择一个代理人等级"
        IgnoreItemChanges="false"
        AllowClear
        OnSelectedItemChanged="OnSelectedItemChangedHandler">
</Select>