请注意我是mvc和web开发的新手。 如何在没有回发的情况下从数据库中获取数据？ 就像我点击更新网址时一样，我不想重新加载页面。
我的模特
public partial class country
{
public country()
{
this.cities = new HashSet<city>();
}
public int Id { get; set; }
public string countryName { get; set; }
public Nullable<bool> active { get; set; }
public virtual ICollection<city> cities { get; set; }
}
我的观点
@using (Html.BeginForm())
{
@Html.AntiForgeryToken()
<div id="tt">
<div class="nicdark_bg_blue blueb" style="margin-top:10px;">
<div class="row">
<div class="col-md-6">
<div class="form-group">
<label for="addres">Country Name</label>
<br />
<input type="text" placeholder="countryName" class="form-control add" id="countryName" name="countryName" />
</div>
</div>
<div class="col-md-1">
<div class="form-group">
<label for="active">Passive</label>
<br />
<input type="checkbox" class="form-control" value="true" id="active" name="active" style="width:34px" />
<input type="hidden" value="false" name="active" />
</div>
</div>
<div class="form-group">
<div class="col-md-1">
<label for="s"></label>
<br />
<input type="submit" value="Create" class="btn btn-primary" id="s" style="margin-top:6px; width:80px; height:35px;" />
</div>
<div class="col-md-1">
<label for="hi"></label>
<input type="reset" value="Cancel" class="btn btn-danger" id="hi" style="margin-top:6px; margin-left:3px; width:80px; height:35px;" />
</div>
</div>
</div>
</div>
</div>
}
@if (ViewBag.e != null )
{
using (Html.BeginForm("Edit" ,"countries" , FormMethod.Post))
{
@Html.AntiForgeryToken()
<div id="ttt">
<div class="nicdark_bg_blue blueb" style="margin-top:10px;">
<div class="row">
<div class="col-md-6">
<div class="form-group">
<label for="addres">Country Name</label>
<br />
<input type="text" placeholder="countryName" class="form-control add" id="countryName" name="countryName" value="@ViewBag.e.countryName" />
</div>
</div>
<div class="col-md-1">
<div class="form-group">
<label for="active">Passive</label>
<br />
@if(ViewBag.e.active==true)
{
<input type="checkbox" class="form-control" value="true" id="active" name="active" style="width:34px" checked="checked"/>
<input type="hidden" value="false" name="active" />
}
<br />
@if (ViewBag.e.active == false)
{
<input type="checkbox" class="form-control" value="true" id="active" name="active" style="width:34px" />
<input type="hidden" value="false" name="active" />
}
</div>
</div>
<div class="form-group">
<div class="col-md-1">
<label for="s"></label>
<br />
<input type="submit" value="Edit" class="btn btn-primary" id="s" style="margin-top:6px; width:80px; height:35px;" />
</div>
<div class="col-md-1">
<label for="hi"></label>
<input type="reset" value="Cancel" class="btn btn-danger" id="hi" style="margin-top:6px; margin-left:3px; width:80px; height:35px;" />
</div>
</div>
</div>
</div>
</div>
}
}
@if (ViewBag.d != null)
{
using (Html.BeginForm("Delete", "countries", FormMethod.Post))
{
@Html.AntiForgeryToken()
<div id="tttt">
<div class="nicdark_bg_blue blueb" style="margin-top:10px;">
<div class="row">
<div class="col-md-6">
<div class="form-group">
<label for="addres">Country Name</label>
<br />
<input type="text" placeholder="countryName" class="form-control add" id="countryName" name="countryName" value="@ViewBag.d.countryName" />
</div>
</div>
<div class="col-md-1">
<div class="form-group">
<label for="active">Passive</label>
<br />
@if (ViewBag.d.active == true)
{
<input type="checkbox" class="form-control" value="true" id="active" name="active" style="width:34px" checked="checked" />
<input type="hidden" value="false" name="active" />
}
<br />
@if (ViewBag.d.active == false)
{
<input type="checkbox" class="form-control" value="true" id="active" name="active" style="width:34px" />
<input type="hidden" value="false" name="active" />
}
</div>
</div>
<div class="form-group">
<div class="col-md-1">
<label for="s"></label>
<br />
<input type="submit" value="Delete" class="btn btn-primary" id="s" style="margin-top:6px; width:80px; height:35px;" />
</div>
<div class="col-md-1">
<label for="hi"></label>
<input type="reset" value="Cancel" class="btn btn-danger" id="hi" style="margin-top:6px; margin-left:3px; width:80px; height:35px;" />
</div>
</div>
</div>
</div>
</div>
}
}
我的控制员：
// GET: countries/Create
public ActionResult Create()
{
return View();
}
// POST: countries/Create
// To protect from overposting attacks, please enable the specific properties you want to bind to, for
// more details see http://go.microsoft.com/fwlink/?LinkId=317598.
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Create([Bind(Include = "Id,countryName,active")] country country)
{
if (ModelState.IsValid)
{
country.countryName = country.countryName.ToUpper();
db.countries.Add(country);
db.SaveChanges();
return RedirectToAction("Create");
}
return View(country);
}
// GET: countries/Edit/5
public ActionResult Edit(int? id)
{
if (id == null)
{
return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
}
country country = db.countries.Find(id);
if (country == null)
{
return HttpNotFound();
}
Session["id"] = country.Id;
ViewBag.e = country;
return View("Create");
}
// POST: countries/Edit/5
// To protect from overposting attacks, please enable the specific properties you want to bind to, for
// more details see http://go.microsoft.com/fwlink/?LinkId=317598.
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Edit([Bind(Include = "Id,countryName,active")] country country)
{
if (ModelState.IsValid)
{
int id = (int) Session["id"];
country c = db.countries.Find(id);
c.active = country.active;
c.countryName = country.countryName;
db.SaveChanges();
return RedirectToAction("Create");
}
return View("Create");
}
public country eco (int id)
{
country c = db.countries.Find(id);
return c ;
}
// GET: countries/Delete/5
public ActionResult Delete(int? id)
{
if (id == null)
{
return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
}
country country = db.countries.Find(id);
if (country == null)
{
return HttpNotFound();
}
ViewBag.d = country;
return View("Create");
}
// POST: countries/Delete/5
[HttpPost, ActionName("Delete")]
[ValidateAntiForgeryToken]
public ActionResult DeleteConfirmed(int id)
{
country country = db.countries.Find(id);
db.countries.Remove(country);
db.SaveChanges();
return RedirectToAction("Create");
}
这是更新和删除的好方法吗？
答案 0 :(得分：1)
你需要Ajax才能做到这一点。您应该有一个在控制器中进行提取的操作。
$.get( "@Url.Action('Action', 'Controller', { param1: 'something' })", function( data ) {
//Put whatever you want to do with the data here
});
更多信息和示例Here