我想在mvc中的同一页面中返回错误消息 [英] I want to return error message in same page in mvc

问题描述

我有一个控制器，它返回一条消息，但是这个消息显示在新的空白页面。我想在同一页面显示这个消息，任何人都可以帮助我..

我的代码是



控制器是



[HttpPost]

公共ActionResult NewsLetter（NewsLetterModel模型）

{

试试

{

string msg =;

string res =;





if（ModelState.IsValid）

{

kebhariBlogsEntities objEntity = new kebhariBlogsEntities（）;

if（model.Choice == 0）

{

res = User_Role_BL.Newsletter（model .Email，0，model.Option，0,0）;

msg = res;

}

else if（model.Choice = = 1）
{

res = User_Role_BL.Newsletter（model.Email，1，model.Option，0,0）;



msg = res;

}

else

{

msg =error;

}

}

其他

{

msg =无效的电子邮件;

}

返回Json（msg，JsonRequestBehavior.AllowGet）;

}

catch（Exception ex）

{

ErrorViewModel errorModel = new ErrorViewModel（）;

errorModel.ErrorDetails = ex.Message;

errorModel.ReturnUrl = Url.Action（Common，NewsLetter）;

返回RedirectToAction（E rrorList，错误，errorModel）;

}

}



我的查看页面是



@model KebhariBlog.Models.CommonModel.NewsLetterModel



@ *< script type =text / javascriptsrc =@ Url.Content（〜/ Content // js / jquery-1.4.2.min.js）>< / script> * @

@ *< ; script src =@ Url.Content（〜/ Scripts / jquery.unobtrusive-ajax.min.js）type =text / javascript>< / script> * @

< script src =@ Url.Content（〜/ Scripts / jquery.validate.min.js）type =text / javascript>< / script>

< ; script src =@ Url.Content（〜/ Scripts / jquery.validate.unobtrusive.min.js）type =text / javascript>< / script>



@using（Ajax.BeginForm（NewsLetter，Common，新的AjaxOptions {UpdateTargetId =updateNews，OnBegin =showLoader（）;，OnComplete =hideLoader（）;}） ）

{

i have a controller that returns a message but this msg show in new blank page .i want to show this msg in the same page anyone can help me..
my code is

controller is

[HttpPost]
public ActionResult NewsLetter(NewsLetterModel model)
{
try
{
string msg = "";
string res = "";


if (ModelState.IsValid)
{
kebhariBlogsEntities objEntity = new kebhariBlogsEntities();
if (model.Choice == 0)
{
res = User_Role_BL.Newsletter(model.Email, 0, model.Option, 0, 0);
msg = res;
}
else if (model.Choice == 1)
{
res = User_Role_BL.Newsletter(model.Email, 1, model.Option, 0, 0);

msg = res;
}
else
{
msg = "error";
}
}
else
{
msg = "Invalid Email";
}
return Json(msg, JsonRequestBehavior.AllowGet);
}
catch (Exception ex)
{
ErrorViewModel errorModel = new ErrorViewModel();
errorModel.ErrorDetails = ex.Message;
errorModel.ReturnUrl = Url.Action("Common", "NewsLetter");
return RedirectToAction("ErrorList", "Error", errorModel);
}
}

and my view page is

@model KebhariBlog.Models.CommonModel.NewsLetterModel

@* <script type="text/javascript" src="@Url.Content("~/Content//js/jquery-1.4.2.min.js")"></script>*@
@* <script src="@Url.Content("~/Scripts/jquery.unobtrusive-ajax.min.js")" type="text/javascript"></script>*@
<script src="@Url.Content("~/Scripts/jquery.validate.min.js")" type="text/javascript"></script>
<script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js")" type="text/javascript"></script>

@using (Ajax.BeginForm("NewsLetter", "Common", new AjaxOptions { UpdateTargetId = "updateNews", OnBegin = "showLoader();", OnComplete = "hideLoader();" }))
{

@ Html.TextBoxFor（m => m.Email，new {@ class =blog_search，@ Value =，Placeholder =Enter Your Mail Id ...，@ style =background：none; font-size：12px; width：95％; border：1px solid #CCC;，}}

@ Html.ValidationMessageFor（m => m.Email）

@Html.TextBoxFor(m => m.Email, new { @class="blog_search", @Value="" ,Placeholder="Enter Your Mail Id..." ,@style="background: none;font-size: 12px;width: 95%;border: 1px solid #CCC;",})
@Html.ValidationMessageFor(m => m.Email)

< input name =Button1class =myButton_blogtype =submitvalue =Subscribeonclick =return validate（）; style =float：right; margin-top：5px; padding：5px 10px; font-size：12px;>

<input name="Button1" class="myButton_blog" type="submit" value="Subscribe" onclick="return validate();" style="float: right; margin-top: 5px; padding:5px 10px; font-size:12px;">

< img src =@ Url.Content（〜/ Content / images / ajax-loader（1 ）.gif）id =loaderImgstyle =display：none; />

}

< script type =text / javascript>



function showLoader （）{b / b
document.getElementById（'loaderImg'）。style.display ='block';

}

function hideLoader（）{

document.getElementById（'loaderImg'）。style.display ='none';

}

function validate（）{

var email = document.getElementById（'Email'）;

var emailPattern = /^[a-zA-Z0-9._-]+@@[a-zA- Z0-9 .-] + \。[a-zA-Z] {2,4} $ /;

if（email.value ==''||！emailPattern.test（email .value））{

document.getElementById（'updateNews'）。innerHTML ='无效的电子邮件';

返回false;

}

else {

document.getElementById（'updateNews'）。innerHTML ='';

}

}

< / sc ript>

<img src="@Url.Content("~/Content/images/ajax-loader (1).gif")" id="loaderImg" style="display:none;" />
}
<script type="text/javascript">

function showLoader() {
document.getElementById('loaderImg').style.display = 'block';
}
function hideLoader() {
document.getElementById('loaderImg').style.display = 'none';
}
function validate() {
var email = document.getElementById('Email');
var emailPattern = /^[a-zA-Z0-9._-]+@@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}$/;
if (email.value == '' || !emailPattern.test(email.value)) {
document.getElementById('updateNews').innerHTML = 'Invalid Email';
return false;
}
else{
document.getElementById('updateNews').innerHTML = '';
}
}
</script>

推荐答案

/;

if（email.value ==''|| ！emailPattern.test（email.value））{

document.getElementById（'updateNews'）。innerHTML ='无效的电子邮件';

返回false;

}

else {

document.getElementById（'updateNews'）。innerHTML =''; < br $>
}

}

< / script>

/;
if (email.value == '' || !emailPattern.test(email.value)) {
document.getElementById('updateNews').innerHTML = 'Invalid Email';
return false;
}
else{
document.getElementById('updateNews').innerHTML = '';
}
}
</script>

使用'Viewbag'元素。给它留言你要展示的&然后在你的视图中放置代码。

use 'Viewbag' element.Assign it message which you want to show & then place fallowing code in your view.

@if (!string.IsNullOrEmpty(ViewBag.AlertMessage))
      {
       <script type="text/javascript">
           alert("@ViewBag.AlertMessage");
           ViewBag.AlertMessage = "";
       </script>
   }

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