I managed to resolve my own mistake.
The code is so now, compared to the one above, put it before!
What I really wanted was to bring the message that was coming from TempData["Mensagem"]
and make a comparison, to be able to identify if the message errs of error or of success. In case, I believe this message should come from a BLL because I'm with the part of the project branch here and not the trunk the original so I can not see where the original message comes from. In%% of the comparison that is now right, the one that was previously, was wrong because I was comparing tempData 2 times, and for this I returned the error:
Object reference not set to an instance of an object
In the old comparison it looked like this:
1:
@if (TempData["Mensagem"].ToString() != "")
{
@Html.Raw(TempData["Mensagem"].ToString());
<figure><img src="/Content/Images/Mensagem/erro.png" alt=""/></figure>
}
else
{
//throw new ArgumentNullException();
@Html.Raw(TempData["Mensagem"].ToString());
<figure><img src="/Content/Images/Mensagem/sucess.png" alt=""/></figure>
}
See the difference?
So much so that when I gave this error @if eu
I did a Object reference not set to an instance of an object wrongly, I used this: Exception but it was not advisable to use it since it would only work at runtime, anyway that NullReferenceException would not solve my problem.
The comparison of which Excpetion is or what is happening if wrong or not, it already does in mensagem . What I really really wanted was @if more was playing 2 times img.png and @Html.Raw again after else look:
2
else
{
//throw new ArgumentNullException();
@Html.Raw(TempData["Mensagem"].ToString());
<figure><img src="/Content/Images/Mensagem/sucess.png" alt=""/></figure>
}
Playing and comparing twice being tempData only needed to pass once, and the comparison would come in the same image, but how? using @Html.Raw
Every QueryString has its Controller , in this case some of the Actions in the ActionResult used Controllers I will exemplify with a project code here for you to understand, I will show a JsonResult within a JsonResult , later you still have the file Controller in the Scripts folder, look at this JsonResult :
3
[HttpPost]
public JsonResult CadastrarCliente(ClienteEntity cliente)
{
string mensagem = string.Empty;
string url = url = Code.UrlMaker.UrlCentralCliente();
bool retorno = ClienteBLL.CadastrarCliente(cliente, out mensagem);
//Guarda a mensagem que será exibida
TempData["Mensagem"] = mensagem;
return Json(new { RedirectUrl = url, Retorno = retorno });
}
Note that in the bool return if true it will save the message, as I said the message should be coming from a JS , but I can not see here, because I'm not with the original project code, just a copy code , to be able to go to the original and upload in production.
It checks in BLL whether it was successful or not, whatever it is, it will save the message in tempData ["Message"], and will return this message to me:
4
return Json(new { RedirectUrl = url, Retorno = retorno });
Forget this ClienteBLL.CadastrarCliente() only in RedirectUrl
But you still have the Retorno file as it will still know what JS should this message display? here it is:
5
function RetornoPostCadastro(json)
{
$.ExibirMensagem('/Base/Mensagem?retorno=' + json.Retorno, 400, 445);
}
Some photos for you to see, look at the Views folder of View and inside a View Message
Anotherphototolookat,lookatBaseControllersandrightbelowBaseController.cs
Where Views, Base, Mensagem is the folder name of a Base and Controller is the name of the View that it will display , and using Query String Mensagem of where? Remember? this json. Return comes from:
6
return Json(new { RedirectUrl = url, Retorno = retorno });
Look at%% of% where this ?retorno=' + json.Retorno variable is given variable bool return = ClientBLL.CountClient () look at part Retorno = retorno :
7 Message View Code
<div class="main">
<section class="container">
<a onclick="javascript:FecharPopup()" href="@Ecommerce.Code.UrlMaker.UrlHome()" class="FecharPopup"></a>
<article class="linha1">
<h1>
@if (TempData["Mensagem"] != null && !string.IsNullOrEmpty(TempData["Mensagem"].ToString()))
{
@Html.Raw(TempData["Mensagem"].ToString());
}
<figure>
@if (HttpContext.Current.Request.QueryString["retorno"] == "true")
{
<img src="/Content/Images/Mensagem/sucess.png" alt=""/>
}
else
{
<img src="/Content/Images/Mensagem/erro.png" alt=""/>
}
</figure>
</h1>
</article>
<article class="linha2">
<p>Em caso de dúvidas, <a target="_parent" href="@Ecommerce.Code.UrlMaker.UrlCentralAtendimento()">fale conosco.</a></p>
</article>
</section>
</div>
<!--MAIN-->
That's it, thank you to those who answered and I hope that my doubt that I had and that I can, and along with the other response posts here, help others with similar questions, hug
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