ASP.NET MVC - 当前选定的值未在IE中被选中

时间:2012-02-15 10:48:36

标签: asp.net-mvc-3

在我的模型中编辑项目的行动中,我有:

ViewBag.PossibleSource = context.Source.ToList();

在我的观点中,我有:

@Html.DropDownListFor(model => model.SourceID, ((IEnumerable<btn_intranet.Areas.DayBook.Models.DayBookSource>)ViewBag.PossibleSource).Select(option => new SelectListItem
       {
           Text = (option == null ? "None" : option.SourceName),
           Value = option.SourceID.ToString(),
           Selected = (Model != null) && (option.SourceID == Model.SourceID)
       }))

在Chrome中,这可以按预期工作。当我将模型传递给我的视图时,我模型中设置的当前值是列表中的选定值。但是在IE8和9中,它的选择值是我的模型设置的ORIGINAL值,即使更新确实有效。所以,如果我最初选择“你好”,然后编辑为“世界”。在Chrome中,当我重新加载页面时,它将被设置为“world”但在IE中“hello”在下拉列表中被选中,即使在我的模型的数据库中设置了“world”。值得注意的是,这些是通过AJAX更新的

编辑:

Ajax.Actionlink:

@Ajax.ActionLink(item.ItemNumber, "EditItem", new { id = item.QuoteLineID, enquiryId = item.EnquiryID }, new AjaxOptions()
       {
           InsertionMode = InsertionMode.Replace,
           UpdateTargetId = "EditItem"
       })

这会将表单加载到视图上。

Ajax.BeginForm:

@using (Ajax.BeginForm("EditItem", new { controller = "QuoteLines" }, new AjaxOptions()
    {
        InsertionMode = InsertionMode.Replace,
        UpdateTargetId = "Summary"
    }, new { @class = "manual-search cf" }))
{
  ...Other Model inputs

@Html.DropDownListFor(model => model.SourceID, ((IEnumerable<btn_intranet.Areas.DayBook.Models.DayBookSource>)ViewBag.PossibleSource).Select(option => new SelectListItem
       {
           Text = (option == null ? "None" : option.SourceName),
           Value = option.SourceID.ToString(),
           Selected = (Model != null) && (option.SourceID == Model.SourceID)
       }))
      <input type="submit" class="update-items" value="Update Line" />
}

EditItem Action GET请求:

public virtual ActionResult EditItem(int id)
        {
            try
            {
                DayBookQuoteLines q = context.QuoteLines.Single(x => x.QuoteLineID == id);
                ViewBag.PossibleSource = context.Source.ToList();
                if (Request.IsAjaxRequest())
                {
                    return PartialView("_EditItem", q);
                }
                else
                {
                    return RedirectToAction("SalesDetails", new { controller = "Enquiries", id = q.EnquiryID });
                }
            }
            catch (Exception ex)
            {
                return PartialView("_Error", ex.Message);
            }
        }

EditItem Action POST请求:

[HttpPost]
        public virtual ActionResult EditItem(DayBookQuoteLines q)
        {
            try
            {

                ViewBag.PossibleSource = context.Source.ToList();

                if (ModelState.IsValid)
                {
                    context.Entry(q).State = EntityState.Modified;
                    context.SaveChanges();

                    return PartialView("_GetSummary", context.Vehicles.Where(x => x.EnquiryID == q.EnquiryID).ToList());
                }
                return PartialView("_EditItem", q);
            }
            catch (Exception ex)
            {
                return PartialView("_Error", ex.Message);
            }
        }

1 个答案:

答案 0 :(得分:0)

我已修复它,我将EditItem的GET请求重命名为EditItemGet,然后在我的@ Ajax.ActionLink中重命名:

 @Ajax.ActionLink(item.ItemNumber, "EditItemGet", new { id = item.QuoteLineID, enquiryId = item.EnquiryID }, new AjaxOptions()
           {
               InsertionMode = InsertionMode.Replace,
               UpdateTargetId = "EditItem",
               HttpMethod = "POST"
           })

这是一个缓存问题。这就是为什么它只在喜欢Cache的IE中失败了。我之前读过,请求POST请求会阻止缓存。