Question

我正在尝试创建一个新的SelectList并通过return Acctlist.ToList<SelectListItem>();语句返回它，但由于错误而无法

无法隐式转换类型＆＃39; System.Collections.Generic.List＆lt; System.Web.Mvc.SelectListItem＆gt;＆＃39;到＆＃39; System.Web.Mvc.SelectList＆＃39;

        private SelectList RemoveCustomersWithoutSites(SelectList CustomerSelectList)
    {
        // Update the Account Number dropdown in the SafeContacts pages to only include accounts that have at least one monitored location in Stages.
        SelectList CustList = null;
        List<SelectListItem> Acctlist = new List<SelectListItem>();

        foreach (SelectListItem AcntNumber in CustomerSelectList.Items){
            IEnumerable<SelectListItem> siteList = null;
            siteList = objAPICommon.GetSites(AcntNumber.ToString());

            // Add this Account if it has a site
            if (siteList != null && siteList.Count() > 0)
            {
                SelectListItem item;
                item = new SelectListItem { Text = AcntNumber.Text, Value = AcntNumber.Value };
                Acctlist.Add(item);
            }
        }

        return ***Acctlist.ToList<SelectListItem>()***;
    }

我应该如何将Acctlist投射或转换为SelectList？谢谢。

Answer 1

使用以下项目创建新的SelectList：

new SelectList(items)

如何显式转换类型＆＃39; System.Collections.Generic.List <system.web.mvc.selectlistitem>＆＃39;到＆＃39; System.Web.Mvc.SelectList＆＃39;？

1 个答案: