我正在使用局部视图＆＃34; _studentList＆＃34;在视图＆＃34; SearchStudent＆＃34;。在我的视图中，我有一个文本字段和一个搜索按钮，我在部分视图中显示学生列表。 我的观点如下：
@model Practice_SQL_Validation_ALL.Models.SearchViewModel
@{
ViewBag.Title = "SearchStudent";
}
<h2>SearchStudent</h2>
<nav class="navbar navbar-default">
<div class="container-fluid">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand">Search</a>
</div>
<!-- Collect the nav links, forms, and other content for toggling -->
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<form class="navbar-form navbar-left" role="search">
<div class="form-group">
<input type="text" class="form-control" id="txtserch" placeholder="Enter Roll No or Name">
@*@Html.EditorFor(model => model.SEARCHCRITERA.VALUE, new { htmlAttributes = new { @class = "form-control", placeholder = "Enter Roll No or Name" } })*@
</div>
<button id="preview" type="button" class="btn btn-default">Search</button>
</form>
</div><!-- /.navbar-collapse -->
</div><!-- /.container-fluid -->
</nav>
<div id="result">
@Html.Partial("_StudentList", Model.STUDENTLIST)
</div>
<script type="text/javascript" src="http://code.jquery.com/jquery-latest.min.js"></script>
<script type="text/javascript">
jQuery.ready(function () {
$("#result").hide();
$("#preview").click(function () {
//$("#div1").hide();
$("#result").show();
});
});
$("#preview").click(function () {
var jsonObject = {
"returnUrl": $('#txtserch').val()
};
jQuery.ajax({
type: "POST",
url: "SearchStudent",
dataType: "json",
contentType: "application/json; charset=utf-8",
data: JSON.stringify(jsonObject),
success: function (data) { alert("Success"); },
failure: function (errMsg) {
alert("Error");
}
});
});
</script>
我的部分视图如下：
@model IEnumerable<Practice_SQL_Validation_ALL.Models.Student>
@*<p>
@Html.ActionLink("Create New", "Create")
</p>*@
<table class="table">
<tr>
<th>
@Html.DisplayNameFor(model => model.ROLLNUMBER)
</th>
<th>
@Html.DisplayNameFor(model => model.NAME)
</th>
<th>
@Html.DisplayNameFor(model => model.ADDRESS)
</th>
<th>
@Html.DisplayNameFor(model => model.PHONE)
</th>
<th>
@Html.DisplayNameFor(model => model.CLASS)
</th>
<th>
@Html.DisplayNameFor(model => model.ISNEW)
</th>
<th></th>
</tr>
@foreach (var item in Model) {
<tr>
<td>
@Html.DisplayFor(modelItem => item.ROLLNUMBER)
</td>
<td>
@Html.DisplayFor(modelItem => item.NAME)
</td>
<td>
@Html.DisplayFor(modelItem => item.ADDRESS)
</td>
<td>
@Html.DisplayFor(modelItem => item.PHONE)
</td>
<td>
@Html.DisplayFor(modelItem => item.CLASS)
</td>
<td>
@Html.DisplayFor(modelItem => item.ISNEW)
</td>
<td>
@Html.ActionLink("Edit", "Edit", new { /* id=item.PrimaryKey */ }) |
@Html.ActionLink("Details", "Details", new { /* id=item.PrimaryKey */ }) |
@Html.ActionLink("Delete", "Delete", new { /* id=item.PrimaryKey */ })
</td>
</tr>
}
</table>
我的ViewModel如下所示：
namespace Practice_SQL_Validation_ALL.Models
{
public class SearchViewModel
{
private SearchCriteria searchcriteria = null;
private List<Student> studentlist = null;
public SearchCriteria SEARCHCRITERA
{
set
{
searchcriteria = value;
}
get
{
return searchcriteria;
}
}
public List<Student> STUDENTLIST
{
set
{
studentlist = value;
}
get
{
return studentlist;
}
}
public SearchViewModel()
{
searchcriteria = new SearchCriteria();
studentlist = new List<Student>();
}
}
public class SearchCriteria
{
[Display(Name = "Criteria")]
public string CRITERIA { get; set; }
[Display(Name = "Value")]
public string VALUE { get; set; }
}
public class Student
{
#region Properties
private bool m_isnew = true;
[Required]
[Display(Name = "Roll Number")]
public string ROLLNUMBER { get; set; }
[Required]
[Display(Name = "Name")]
public string NAME { get; set; }
//[Required]
[Display(Name = "Address")]
public string ADDRESS { get; set; }
//[Required]
[Display(Name = "Phone#")]
public string PHONE { get; set; }
[Display(Name = "Class")]
public string CLASS { get; set; }
[Display(Name = "Edit Mode")]
public bool ISNEW { get { return m_isnew; } set { m_isnew = value; } }
#endregion
}
}
我的StudentController如下：
namespace Practice_SQL_Validation_ALL.Controllers
{
public class StudentController : Controller
{
public ActionResult SearchStudent()
{
SearchViewModel obj = new SearchViewModel();
ViewBag.Count = 0;
return View(obj);
}
[HttpPost]
//[AllowAnonymous]
//[ValidateAntiForgeryToken]
//[ChildActionOnly]
public ActionResult SearchStudent(string returnUrl)
{
SearchViewModel obj = new SearchViewModel();
//DAS db = new DAS();
//list = db.SearchStudentwithCriteria("RollNo", "");
//return PartialView()
obj.SEARCHCRITERA.VALUE = "Some";
obj.STUDENTLIST.Add(new Student { ADDRESS = "Address", ROLLNUMBER = "3160", NAME = "Awais", CLASS = "A", PHONE = "Phone" });
//return View(list);
ViewBag.Count = obj.STUDENTLIST.Count;
//return View(obj);
return PartialView("_StudentList", obj);
//return PartialView("_StudentList", list);
//return PartialView("_StudentList", list);
}
}
}
我希望如果我点击搜索按钮然后ajax调用SearchStudent Post函数并返回应该在局部视图上显示的集合。直到现在正在调用函数，但是没有将响应返回到视图或部分视图。因为我在两种情况下都显示警报成功和失败，但系统不会显示任何情况下的警报框。我究竟做错了什么？任何帮助将不胜感激！如果您需要更多信息，请与我们联系。
非常感谢提前。
答案 0 :(得分：0)
一切似乎都很好，只有ajax成功，你必须把这样的内容
$.ajax({
url: "SearchStudent",
data: { "returnUrl": $('#txtserch').val()},
type: "POST",
cache: false,
success: function (data) {
$("#result").html(data); //********* This is where you have put the result into, because in success you will get the HTML
},
error: function () {
}
});
答案 1 :(得分：0)
进行了一些修改，并解决了我的问题。
In Controller function "SearchStudent" returned partialview with collection.
public ActionResult SearchStudent(string returnUrl)
{
SearchViewModel obj = new SearchViewModel();
obj.SEARCHCRITERA.VALUE = "Some";
obj.STUDENTLIST.Add(new Student { ADDRESS = "Address", ROLLNUMBER = "3160", NAME = "Awais", CLASS = "A", PHONE = "Phone" });
ViewBag.Count = obj.STUDENTLIST.Count;
return PartialView("_StudentList", obj.STUDENTLIST);
}
并更改了ajax调用如下：
jQuery.ajax({
type: "POST",
url: "SearchStudent",
//dataType: "json",
cache: false,
//context:
contentType: "html",
data: JSON.stringify(jsonObject),
success: function (data) { $("#result").html(data); },
failure: function (errMsg) {
$("#result").html("Error");
}
});
我认为问题主要在于ajax调用。当我从控制器函数返回html内容但在ajax调用中我已将contentType和数据类型属性作为Json。这就是为什么HTML无法成功展示的原因。