Problem with Viewbag and Viewdata for Breadcrumb Creation

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I need to return from my controller to my project view data to assemble the breadcrumb (structured navigation).

My problem is: If I send by Viewbag or Viewdata or Tempdata, and the user is using two different windows, I can show the wrong data.

There is a more "secure" way to pass this data, besides being present in the model.

c# asp.net-mvc .net

  • I have one more algorithm that I have assembled here and that is a little simpler than the one I have marked. If you want, I reopen the question and put it.

  • If you manage to leave both examples, it would be interesting. I had not searched as breadcrumb

1 answer

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The question and answers already exist here, but I find it interesting to put another example of breadcrumb, whereas I have left the simplest approach in recent times.

The information for mounting a breadcrumb up to 3 levels already exist in MVC, within ViewContext. An example can be done as follows:

<ul class="page-breadcrumb">
    <li>
        <i class="fa fa-home"></i>
        <a href="~/">Meu Sistema</a>
        <i class="fa fa-angle-right"></i>
    </li>
    <li>
        <a href="~/@ViewContext.RouteData.Values["controller"]">@(Linguagem.ResourceManager.GetString(ViewContext.RouteData.Values["controller"].ToString()) ?? ViewContext.RouteData.Values["controller"].ToString())</a>
        <i class="fa fa-angle-right"></i>
    </li>
    <li>
        <a href="~/@ViewContext.RouteData.Values["controller"]/@ViewContext.RouteData.Values["action"]/@(ViewContext.RouteData.Values["id"] ?? "")">@(Linguagem.ResourceManager.GetString(ViewContext.RouteData.Values["action"].ToString()) ?? ViewContext.RouteData.Values["action"].ToString())</a>
    </li>
</ul>

Linguagem is a file of Resource (.resx) which contains all the strings of first names of Controllers.

THE CSS is based on the Metronic template, whose CSS I put below:

.page-bar .page-breadcrumb {
  display: inline-block;
  float: left;
  padding: 10px 6px;
  margin: 0;
  list-style: none;
}
.page-bar .page-breadcrumb > li {
  display: inline-block;
}
.ie8 .page-bar .page-breadcrumb > li {
  margin-right: 1px;
}
.page-bar .page-breadcrumb > li > a,
.page-bar .page-breadcrumb > li > span {
  color: #888;
  font-size: 13px;
  text-shadow: none;
}
.page-bar .page-breadcrumb > li > i {
  color: #aaa;
  font-size: 14px;
  text-shadow: none;
}
.page-bar .page-breadcrumb > li > i[class^="icon-"],
.page-bar .page-breadcrumb > li > i[class*="icon-"] {
  color: #8c8c8c;
}

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