3
在我的索引頁我有一個搜索表單，允許用戶根據3個搜索條件來提取信息。當搜索結果從控制器返回時，它們將作爲List對象返回，該對象是視圖模型的一個屬性，並顯示在搜索表單下方的表格中。視圖模型發佈空的屬性，回控制器
然後用戶可以選擇的記錄了他們想改變的選項。他們將通過選擇指定記錄旁邊的複選框來完成此操作。然後，使用搜索框下方顯示的表單，輸入新值並點擊「更新」按鈕保存更改。
這裏（我們爲了讓用戶進行大規模更新，而無需按行來改變錶行這樣做）是一個屏幕截圖來說明我的意思。這是頁面看起來就像用戶點擊「搜索」按鈕後：
當指示用戶命中的「搜索」的形式回發到控制器的索引方法。當用戶點擊「克隆選定項目」時，表單被指示回發到同一控制器中的「更新」方法。然而，問題是，被調回的「更新」的方法是，除了放置在New Territory，New Description和New Effective Date文本框中的值完全空視圖模型對象。
我是比較新的ASP MVC所以任何幫助/建議將不勝感激。不知道爲什麼視圖模型會使用「搜索」按鈕從控制器發回相同的值，但使用「克隆選定項目」時不會這樣做。
視圖模型（這是被髮回到控制器）
public class ZipCodeIndex
{
public List<ZipCodeTerritory> zipCodeTerritory { get; set; }
[DisplayName("Zip Code")]
public string searchZip { get; set; }
[DisplayName("Effective on this date")]
public string searchDate { get; set; }
[DisplayName("State")]
public string searchState { get; set; }
[DisplayName("New Territory")]
public string newTerritory { get; set; }
[DisplayName("New Description")]
public string newDescription { get; set; }
[DisplayName("New Effective Date")]
public string newEffectiveDate { get; set; }
public ZipCodeIndex()
{
zipCodeTerritory = new List<ZipCodeTerritory>();
}
}
模型（它將填充視圖模型的列表對象）
[MetadataType(typeof(ZipCodeTerritoryMetaData))]
public partial class ZipCodeTerritory
{
public bool Update { get; set; }
}
public partial class ZipCodeTerritory
{
public string ChannelCode { get; set; }
public string DrmTerrDesc { get; set; }
public string IndDistrnId { get; set; }
public string StateCode { get; set; }
public string ZipCode { get; set; }
public System.DateTime EndDate { get; set; }
public System.DateTime EffectiveDate { get; set; }
public string LastUpdateId { get; set; }
public Nullable<System.DateTime> LastUpdateDate { get; set; }
public int Id { get; set; }
}
查看
@model Monet.ViewModel.ZipCodeIndex
@using(Html.BeginForm("Index", "ZipCodeTerritory", FormMethod.Post))
{
<div id="searchBox" class="boxMe">
<div id="zipBox">
@Html.Raw("Zip Code")
@Html.TextAreaFor(model => model.searchZip, new { style = "width: 300px;", placeholder = "Enter up to 35 comma separated zip codes" })
</div>
<div id="dateBox">
@Html.LabelFor(model => model.searchDate)
@Html.TextBoxFor(model => model.searchDate, new { style="width: 80px;"})
</div>
<div id="stateBox">
@Html.LabelFor(model => model.searchState)
@Html.TextBoxFor(model => model.searchState, new { style = "width: 25px;" })
<button type="submit">Search</button>
</div>
</div>
<div id="errorStatus">
@ViewBag.ErrorMessage
</div>
<div style="clear: both;"></div>
}
<br/>
@Html.ActionLink("Create New", "Create")
<br/>
@if (Model != null)
{
using(Html.BeginForm("Update", "ZipCodeTerritory", FormMethod.Post))
{
<div id="cloneBox">
@Html.LabelFor(model => model.newTerritory)
@Html.TextBoxFor(model => model.newTerritory, new { style="width: 30px;padding-left:10px;"})
@Html.LabelFor(model => model.newDescription)
@Html.TextBoxFor(model => model.newDescription, new { style = "width: 250px;padding-left:10px;" })
@Html.LabelFor(model => model.newEffectiveDate)
@Html.TextBoxFor(model => model.newEffectiveDate, new { style = "width: 80px;padding-left:10px;" })
<button type="submit">Clone Selected Items</button>
</div>
}
<table id="thetable" class="tablesorter" >
<thead>
<th></th>
<th>Channel</th>
<th>Territory</th>
<th>Description</th>
<th>State</th>
<th>Zip</th>
<th>Effective</th>
<th>End Date</th>
<th>Last Update By</th>
<th>Last Update Date</th>
<th></th>
</thead>
<tbody>
@foreach (var item in Model.zipCodeTerritory)
{
<tr>
<td>@Html.CheckBoxFor(model => item.Update)</td>
<td>
@Html.DisplayFor(model => item.ChannelCode)
</td>
<td>
@Html.DisplayFor(model => item.IndDistrnId)
</td>
<td>
@Html.DisplayFor(model => item.DrmTerrDesc)
</td>
<td>
@Html.DisplayFor(model => item.StateCode)
</td>
<td>
@Html.DisplayFor(model => item.ZipCode)
</td>
<td>
@Html.DisplayFor(model => item.EffectiveDate)
</td>
<td>
@Html.DisplayFor(model => item.EndDate)
</td>
<td>
@Html.DisplayFor(model => item.LastUpdateId)
</td>
<td>
@Html.DisplayFor(model => item.LastUpdateDate)
</td>
<td>
@Html.ActionLink("Edit", "Edit", new { id = item.Id })
</td>
</tr>
}
</tbody>
</table>
}
控制器
public ViewResult Index(ZipCodeIndex search)
{
try
{
//If search criteria is null page is loading for the first time so send blank view
if (String.IsNullOrWhiteSpace(search.searchZip) &&
String.IsNullOrWhiteSpace(search.searchDate) &&
String.IsNullOrWhiteSpace(search.searchState))
{
return View();
}
//Determine if necessary search criteria has been sent
if (String.IsNullOrWhiteSpace(search.searchZip) && String.IsNullOrWhiteSpace(search.searchState))
{
ViewBag.ErrorMessage = "Either State or Zip Code Must be Specified";
return View(search);
}
DateTime effectiveDate;
//Convert date string to DateTime type
if (String.IsNullOrWhiteSpace(search.searchDate))
{
effectiveDate = DateTime.MinValue;
}
else
{
effectiveDate = Convert.ToDateTime(search.searchDate);
}
//Conduct search by State Code/Date alone
if (String.IsNullOrWhiteSpace(search.searchZip))
{
search.zipCodeTerritory = (from z in db.ZipCodeTerritory
where z.StateCode.Equals(search.searchState) &&
z.EffectiveDate >= effectiveDate
select z).ToList();
return View(search);
}
//Zip codes have been requested to conduct zip search
string[] zipArray;
//Create array and remove white spaces
zipArray = search.searchZip.Split(',').Distinct().ToArray();
for (int i = 0; i < zipArray.Length; i++)
{
zipArray[i] = zipArray[i].Trim();
}
//Determine if state code is being used in search
if (String.IsNullOrWhiteSpace(search.searchState))
{
foreach (var zip in zipArray)
{
var item = from z in db.ZipCodeTerritory
where z.ZipCode.Equals(zip) &&
z.EffectiveDate >= effectiveDate
select z;
search.zipCodeTerritory.AddRange(item);
}
}
else
{
foreach (var zip in zipArray)
{
var item = from z in db.ZipCodeTerritory
where z.ZipCode.Equals(zip) &&
z.EffectiveDate >= effectiveDate &&
z.StateCode.Equals(search.searchState)
select z;
search.zipCodeTerritory.AddRange(item);
}
}
}
catch (DbEntityValidationException dbEx)
{
ViewBag.ErrorMessage = "An error has occurred, we apologize for the incovenience. IT has been notified and will resolve the issue shortly.";
SendEmail.ErrorMail(Common.ErrorCheck.CombineDbErrors(dbEx));
}
catch (Exception ex)
{
ViewBag.ErrorMessage = ErrorCheck.FriendlyError(ex);
SendEmail.ErrorMail(ex);
}
return View(search);
}
[HttpPost]
public ActionResult Update(ZipCodeIndex updateZip)
{
foreach (var zipCode in updateZip.zipCodeTerritory)
{
if (zipCode.Update)
{
try
{
if (!string.IsNullOrEmpty(updateZip.newTerritory)) zipCode.IndDistrnId = updateZip.newTerritory;
if (!string.IsNullOrWhiteSpace(updateZip.newDescription)) zipCode.DrmTerrDesc = updateZip.newDescription;
if (!string.IsNullOrWhiteSpace(updateZip.newEffectiveDate)) zipCode.EffectiveDate = Convert.ToDateTime(updateZip.newEffectiveDate);
db.Entry(zipCode).State = EntityState.Modified;
db.SaveChanges();
}
catch (DbEntityValidationException dbEx)
{
ViewBag.ErrorMessage = "An error has occurred, we apologize for the incovenience. IT has been notified and will resolve the issue shortly.";
SendEmail.ErrorMail(Common.ErrorCheck.CombineDbErrors(dbEx));
}
catch (Exception ex)
{
ViewBag.ErrorMessage = "An error has occurred, we apologize for the incovenience. IT has been notified and will resolve the issue shortly.";
SendEmail.ErrorMail("Zip Code not updated: " + zipCode.ToString() + " |MESSAGE| " + ex.Message);
}
}
}
return RedirectToAction("Index", updateZip);
}
EDIT
我已經添加了以下隱藏字段的第二形式（即訊息至Update方法）。這將返回搜索條件，但List對象仍爲空。
@if (Model != null)
{
using(Html.BeginForm("Update", "ZipCodeTerritory", FormMethod.Post))
{
@Html.HiddenFor(model => model.searchZip)
@Html.HiddenFor(model => model.searchDate)
@Html.HiddenFor(model => model.searchState)
@Html.HiddenFor(model => model.zipCodeTerritory)
<div id="cloneBox">
任何型號的錯誤數據綁定？ – asawyer
它是你的Model.zipCodeTerritory沒有得到返回？ –
不，它是返回的ZipCodeIndex視圖模型。我會在帖子中記下這一點，thx。 – NealR