Getting AliasId, TenantId and SiteId in Oqtane

private string myaid = "";

 protected override async Task OnInitializedAsync()
 {
        try
        {

var _aliasid = PageState.Alias.AliasId;
var _tenantId = PageState.Alias.TenantId;
var _siteId = PageState.Alias.SiteId;

 myaid = "AliasId: " + _aliasid.ToString() + " TenantId: " + _tenantId.ToString() + " SiteId: " + _siteId.ToString();

}

catch (Exception ex)
{
    await logger.LogError(ex, "Error Loading Business Directory Type {Error}", ex.Message);
    AddModuleMessage(Localizer["Message.LoadError"], MessageType.Error);
}

}