问题
I am new in Asp.net MVC and i researched about Ajax.BeginForm but when i apply codes it did not work. Can you share very simple example with Ajax.Beginform with View, Controller, Model?
Thanks.
回答1:
Simple example: Form with textbox and Search button.
If you write "name" into the textbox and submit form, it will brings you patients with "name" in table.
View:
@using (Ajax.BeginForm("GetPatients", "Patient", new AjaxOptions {//GetPatients is name of method in PatientController
InsertionMode = InsertionMode.Replace, //target element(#patientList) will be replaced
UpdateTargetId = "patientList",
LoadingElementId = "loader" // div with .gif loader - that is shown when data are loading
}))
{
string patient_Name = "";
@Html.EditorFor(x=>patient_Name) //text box with name and id, that it will pass to controller
<input type="submit" value="Search" />
}
@* ... *@
<div id="loader" class=" aletr" style="display:none">
Loading...<img src="~/Images/ajax-loader.gif" />
</div>
@Html.Partial("_patientList") @* this is view with patient table. Same view you will return from controller *@
_patientList.cshtml:
@model IEnumerable<YourApp.Models.Patient>
<table id="patientList" >
<tr>
<th>
@Html.DisplayNameFor(model => model.Name)
</th>
<th>
@Html.DisplayNameFor(model => model.Number)
</th>
</tr>
@foreach (var patient in Model) {
<tr>
<td>
@Html.DisplayFor(modelItem => patient.Name)
</td>
<td>
@Html.DisplayFor(modelItem => patient.Number)
</td>
</tr>
}
</table>
Patient.cs
public class Patient
{
public string Name { get; set; }
public int Number{ get; set; }
}
PatientController.cs
public PartialViewResult GetPatients(string patient_Name="")
{
var patients = yourDBcontext.Patients.Where(x=>x.Name.Contains(patient_Name))
return PartialView("_patientList", patients);
}
And also as TSmith said in comments, don´t forget to install jQuery Unobtrusive Ajax library through NuGet.
回答2:
All This Work :)
Model
public partial class ClientMessage
{
public int IdCon { get; set; }
public string Name { get; set; }
public string Email { get; set; }
}
Controller
public class TestAjaxBeginFormController : Controller{
projectNameEntities db = new projectNameEntities();
public ActionResult Index(){
return View();
}
[HttpPost]
public ActionResult GetClientMessages(ClientMessage Vm) {
var model = db.ClientMessages.Where(x => x.Name.Contains(Vm.Name));
return PartialView("_PartialView", model);
}
}
View index.cshtml
@model projectName.Models.ClientMessage
@{
Layout = null;
}
<script src="~/Scripts/jquery-1.9.1.js"></script>
<script src="~/Scripts/jquery.unobtrusive-ajax.js"></script>
<script>
//\\\\\\\ JS retrun message SucccessPost or FailPost
function SuccessMessage() {
alert("Succcess Post");
}
function FailMessage() {
alert("Fail Post");
}
</script>
<h1>Page Index</h1>
@using (Ajax.BeginForm("GetClientMessages", "TestAjaxBeginForm", null , new AjaxOptions
{
HttpMethod = "POST",
OnSuccess = "SuccessMessage",
OnFailure = "FailMessage" ,
UpdateTargetId = "resultTarget"
}, new { id = "MyNewNameId" })) // set new Id name for Form
{
@Html.AntiForgeryToken()
@Html.EditorFor(x => x.Name)
<input type="submit" value="Search" />
}
<div id="resultTarget"> </div>
View _PartialView.cshtml
@model IEnumerable<projectName.Models.ClientMessage >
<table>
@foreach (var item in Model) {
<tr>
<td>@Html.DisplayFor(modelItem => item.IdCon)</td>
<td>@Html.DisplayFor(modelItem => item.Name)</td>
<td>@Html.DisplayFor(modelItem => item.Email)</td>
</tr>
}
</table>
回答3:
Besides the previous post instructions, I had to install the package Microsoft.jQuery.Unobtrusive.Ajax and add to the view the following line
<script src="@Url.Content("~/Scripts/jquery.unobtrusive-ajax.js")" type="text/javascript"></script>
来源：https://stackoverflow.com/questions/17095443/how-to-use-simple-ajax-beginform-in-asp-net-mvc-4