Требование: у меня есть выпадающий список на странице просмотра, отображающий список поставщиков.Когда поставщик выбирается из выпадающего списка, на странице отображаются сведения о выбранном поставщике.По умолчанию мне нужно оставить первого продавца выбранным и его данные отображаются.Я мог бы сделать это, используя следующий код.
Проблема: Не знаю, как выполнить autopostback = true в MVC.Мне нужно отобразить информацию о выбранном поставщике при выборе поставщика в раскрывающемся списке.
Я использую ASP.net 4.0, MVC3, Entity Framework 4.0.Вот мой код:
[AcceptVerbs("POST")]
public ActionResult SearchResult(FormCollection collection)
{
try
{
string vendorName = collection["searchItem"].ToString();
vendorName = vendorName.Trim();
List<Vendor> vendorList = Queries.compiledVendorQuery(dbContext, vendorName).ToList<Vendor>();
if(vendorList.Count() == 0)
return View("EmptySearch");
List<SelectListItem> vendorSelectList = new List<SelectListItem>();
foreach (Vendor vendor in vendorList)
{
vendorSelectList.Add(new SelectListItem
{
Text = vendor.vendorName.ToString(),
Value = vendor.vendorId.ToString()
});
}
Vendor selectedVendor = vendorList[0];
VendorDetails vendorDeatils = Queries.compiledVendorDetailsQuery(dbContext, selectedVendor.vendorId.ToString()).FirstOrDefault();
VendorResult vendorResult = new VendorResult();
vendorResult.vendorSelectList = vendorSelectList;
vendorResult.vendorDetails = vendorDeatils;
return View(vendorResult);
}
catch (Exception e)
{
return View("EmptySearch");
}
}
public class VendorResult
{
public List<SelectListItem> vendorSelectList { get; set; }
public VendorDetails vendorDetails {get; set;}
}
public class VendorDetails
{
public string vendorId { get; set; }
public string vendorName { get; set; }
public string address1 { get; set; }
public string address2 { get; set; }
public string address3 { get; set; }
public string city { get; set; }
public string state { get; set; }
public string zip { get; set; }
public decimal noteIndex { get; set; }
public string comment1 { get; set; }
public string comment2 { get; set; }
public string phone { get; set; }
public string interPhone { get; set; }
public string fax { get; set; }
public string interFax { get; set; }
}
Редактировать: Код, определяющий мой выпадающий список.
@model KeleTools.Models.VendorResult
@{
ViewBag.Title = "Vendor LookUp Tool";
Layout = "~/Views/Shared/_ResultLayout.cshtml";
}
<h2>Vendor Details</h2>
<p> Select a vendor to display details:</p>
@Html.DropDownList("VendorList", @Model.vendorSelectList, null, new {target="_self"})
@using (Html.BeginForm("SearchResult", "VendorLookUp"))
{
<div class="margin-10-top" >
<table id= "OrderDetail" class="OrderDetail">
<tr class="OrderDetail">
<td class="PropertyName">Vendor Id:</td>
<td class="PropertyValue">@Model.vendorDetails.vendorId.ToString().Trim()</td>
</tr>
<tr class="OrderDetail">
<td class="PropertyName">Vendor Name:</td>
<td class="PropertyValue">@Model.vendorDetails.vendorName.ToString().Trim()</td>
</tr>
@{
string address = @Model.vendorDetails.address1.ToString().Trim();
address = address + "\n";
address = address + @Model.vendorDetails.address2.ToString().Trim();
address = address + "\n";
address = address + @Model.vendorDetails.address3.ToString().Trim();
<tr class="OrderDetail">
<td class="PropertyName">Address</td>
<td class="PropertyValue">@address.TrimEnd()</td>
</tr>
}
@{
string city = @Model.vendorDetails.city.ToString().TrimEnd();
city = city + ", ";
city = city + @Model.vendorDetails.state.ToString().Trim();
city = city + " ";
city = city + @Model.vendorDetails.zip.ToString().Trim();
<tr class="OrderDetail">
<td class="PropertyName"> </td>
<td class="PropertyValue">@city</td>
</tr>
string phoneNumber = null;
if (!string.IsNullOrEmpty(@Model.vendorDetails.phone.ToString().Trim()))
{
phoneNumber = @Model.vendorDetails.phone.ToString().TrimEnd().Substring(0, 3);
phoneNumber = phoneNumber + "-";
phoneNumber = phoneNumber + @Model.vendorDetails.phone.ToString().TrimEnd().Substring(3, 3);
phoneNumber = phoneNumber + "-";
phoneNumber = phoneNumber + @Model.vendorDetails.phone.ToString().TrimEnd().Substring(6, 4);
if (@Model.vendorDetails.phone.ToString().Trim().Length > 10)
{
phoneNumber = phoneNumber + " Ext: ";
phoneNumber = phoneNumber + @Model.vendorDetails.phone.ToString().TrimEnd().Substring(10);
}
}
<tr class="OrderDetail">
<td class="PropertyName">Phone Number:</td>
<td class="PropertyValue">@phoneNumber</td>
</tr>
phoneNumber = null;
if (!string.IsNullOrEmpty(@Model.vendorDetails.fax.ToString().Trim()))
{
phoneNumber = @Model.vendorDetails.fax.ToString().TrimEnd().Substring(0, 3);
phoneNumber = phoneNumber + "-";
phoneNumber = phoneNumber + @Model.vendorDetails.fax.ToString().TrimEnd().Substring(3, 3);
phoneNumber = phoneNumber + "-";
phoneNumber = phoneNumber + @Model.vendorDetails.fax.ToString().TrimEnd().Substring(6, 4);
if (@Model.vendorDetails.fax.ToString().Trim().Length > 10)
{
phoneNumber = phoneNumber + " Ext: ";
phoneNumber = phoneNumber + @Model.vendorDetails.fax.ToString().TrimEnd().Substring(10);
}
}
<tr class="OrderDetail">
<td class="PropertyName">Fax:</td>
<td class="PropertyValue">@phoneNumber</td>
</tr>
phoneNumber = null;
if (!string.IsNullOrEmpty(@Model.vendorDetails.interPhone.ToString().Trim()))
{
phoneNumber = @Model.vendorDetails.interPhone.ToString().TrimEnd().Substring(0, 3);
phoneNumber = phoneNumber + "-";
phoneNumber = phoneNumber + @Model.vendorDetails.interPhone.ToString().TrimEnd().Substring(3, 3);
phoneNumber = phoneNumber + "-";
phoneNumber = phoneNumber + @Model.vendorDetails.interPhone.ToString().TrimEnd().Substring(6, 4);
if (@Model.vendorDetails.interPhone.ToString().Trim().Length > 10)
{
phoneNumber = phoneNumber + " Ext: ";
phoneNumber = phoneNumber + @Model.vendorDetails.interPhone.ToString().TrimEnd().Substring(10);
}
}
<tr class="OrderDetail">
<td class="PropertyName">International Phone:</td>
<td class="PropertyValue">@phoneNumber</td>
</tr>
phoneNumber = null;
if (!string.IsNullOrEmpty(@Model.vendorDetails.interFax.ToString().Trim()))
{
phoneNumber = @Model.vendorDetails.interFax.ToString().TrimEnd().Substring(0, 3);
phoneNumber = phoneNumber + "-";
phoneNumber = phoneNumber + @Model.vendorDetails.interFax.ToString().TrimEnd().Substring(3, 3);
phoneNumber = phoneNumber + "-";
phoneNumber = phoneNumber + @Model.vendorDetails.interFax.ToString().TrimEnd().Substring(6, 4);
if (@Model.vendorDetails.interFax.ToString().Trim().Length > 10)
{
phoneNumber = phoneNumber + " Ext: ";
phoneNumber = phoneNumber + @Model.vendorDetails.interFax.ToString().TrimEnd().Substring(10);
}
}
<tr class="OrderDetail">
<td class="PropertyName">International Fax:</td>
<td class="PropertyValue">@phoneNumber</td>
</tr>
}
<tr class="OrderDetail">
<td class="PropertyName">Comment 1:</td>
<td class="PropertyValue">@Model.vendorDetails.comment1.ToString().TrimEnd() < /td>
< /tr>
<tr class="OrderDetail">
<td class="PropertyName">Comment 2:</td>
<td class="PropertyValue">@Model.vendorDetails.comment2.ToString().Trim()</td>
< /tr>
< /table>
< /div>
}