How to Display a error message in view from controller,MVC 4?

Question

3.00/5 (5 votes)

See more:

Hi..
I am new to MVC 4.
I am developing a simple application in MVC 4 using Razor in c#.
Now i need to Display a error in view which is pass from controller?
How can i achieve it?

MY CODES:
MY VIEW CODE:
-------------

C#

@model mvc_cs.Models.FormModels
@using ctrlr = mvc_cs.Controllers.FormController
@{
    ViewBag.Title = "form_edit";
    Layout = "~/Views/Shared/_Layout.cshtml";
    
}
<h2>
    form_edit</h2>


@using (Html.BeginForm("form_edit", "Form", FormMethod.Post))
{
    
        <table>
        <tr>
        <td>
          @Html.DisplayTextFor(model => model.error_msg)
          @Html.ValidationSummary(false)
      
        </td>
        </tr>
        <tr>
        <th>
            @Html.DisplayNameFor(model => model.content_name)
            @Html.DropDownListFor(x => x.selectedvalue, new SelectList(Model.Countries, Model.dd_value, Model.dd_text), "-- Select Product--")   
        </th>
        </tr>
</table>
    
<table>
    <tr>
        <td>
            <input  type="submit" value="Submit" />
        </td>
    </tr>
</table>
}

MY CONTROLLER:
--------------

C#

[HttpPost]
      public ActionResult form_edit(FormModels model)
      {
          model.error_msg = model.update_content(model);

          TempData["error"] = "fjghsfhgflsh";
          ModelState.AddModelError("error.error", "adfdghdghgdhgdhdgda");
          
          return RedirectToAction("Form_edit", "Form",model.error_msg);
        
      }

Posted 7-Nov-13 20:35pm

srameshsathy

Updated 8-Nov-13 1:32am

Pratik Bhuva

v2

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Sampath Lokuge · Answer 1 · 2013-11-09T01:20:00

You can send your error as above using TemData for the next action method.Inside the redirected action method use ViewBag for put above error and show it to the view as below.

Action Method

SQL

public ActionResult Form_edit()
{
    ViewBag.Error = TempData["error"];
    return View();
}

View

@ViewBag.Error

Check this article for more options : What is ViewData, ViewBag and TempData? – MVC options for passing data between current and subsequent request[^]

♥…ЯҠ…♥ · Answer 2 · 2013-11-09T02:29:00

Solution 2

Hi,

You can use

C#

@if (!ViewData.ModelState.IsValid)
{
      <div>Error description</div>
}

In controller

HTML

if (yourError)
{
   ModelState.AddModelError("Error", "Ex: This login failed");
   return View();
}

and in View page

HTML

@Html.ValidationMessage("Error")

Hope this helps you a bit.

Regards,
RK

Posted 9-Nov-13 2:29am

♥…ЯҠ…♥

Comments

Sampath Lokuge 9-Nov-13 8:37am

The problem your solution having is you didn't give an answer for the Op's question. If you watch closely you can see that he uses the 'RedirectToAction("Form_edit", "Form",model.error_msg)' inside the Action method.So for such a situation you have to carrying data by using TempData (or ViewModel) into next Action Method.Your solution is suitable when need to send data directly from Action to View.

♥…ЯҠ…♥ 9-Nov-13 8:42am

I Agree with you.. before redirecting Op's assigning error string to AddModelError so my solution suitable for the question I believe.

Sampath Lokuge 9-Nov-13 8:53am

Nope,It won't work.'AddModelError' works only with the Action to View.You cannot use it to carrying data into another Action where the way Op needs.

srameshsathy 25-Nov-13 2:19am

ya... u r correct it seems. Can u help me to tackle this ???

srameshsathy 22-Nov-13 0:08am

None worked for me..
What i done is:
Controller:
[HttpPost]
public ActionResult form_edit(FormModels model)
{
model.error_msg = model.update_content(model);
ModelState.AddModelError("error", "adfdghdghgdhgdhdgda");
ViewBag.error = TempData["error"];
return RedirectToAction("Form_edit", "Form",model.error_msg);

}
AND MY VIEW:
@using (Html.BeginForm("form_edit", "Form", FormMethod.Post))
{

<table>
<tr>
<td>
@Html.DisplayTextFor(model => model.error_msg)
@Html.ValidationSummary("error")
@ViewBag.error
@Html.ValidationMessage("error")

</td>
</tr>
<tr>
<th>
@Html.DisplayNameFor(model => model.content_name)
@Html.DropDownListFor(x => x.selectedvalue, new SelectList(Model.Countries, Model.dd_value, Model.dd_text), "-- Select Product--")

</th>
</tr>
</table>

<table>
<tr>
<td>
<input type="submit" value="Submit" />
</td>
</tr>
</table>
}

Member 10243803 17-Feb-14 7:57am

how to do java script validation in mvc4 cshtml

♥…ЯҠ…♥ 17-Feb-14 8:02am

You could use JQuery for that