Value cannot be null or empty. Parameter name: contentPath - asp.net-mvc

I have a multi-level Layout master pages in an ASP.NET MVC 4.
I have the following:
<title>#ViewBag.Title</title>
The order of Layout pages is as follows:
_Layout.cshtml
_SubLayout.cshtml (based on _Layout.cshtml)
Index.cshtml (based on _SubLayout.cshtml)
I am setting the #ViewBag.Title inside Index Action. However, I get the following exception:
Value cannot be null or empty. Parameter name: contentPath
Here is the code I have. I am simply making the code of ASP.NET Design Patterns books work for VS 2012 / MVC 4
_Layout.cshtml
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>#ViewBag.Title</title>
<link href="~/favicon.ico" rel="shortcut icon" type="image/x-icon" />
<meta name="viewport" content="width=device-width" />
<link href="#Url.Content("~/Content/Site.css")" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="main">
<div id="header">
<span><a href="#Url.Content("")">
<img alt="Agatha's Clothing Store"
src="#Url.Content("/Content/Images/Structure/lg_logo.png")"
border="0" /></a></span>
</div>
<div id="headerSummary">
#RenderSection("headerBasketSummary", required: false)
</div>
<div class="topBarContainer">
<div id="background">
<div id="navigation">
#RenderSection("MenuContent", required: false)
</div>
<div id="content">
#RenderBody()
</div>
<div style="clear: both;" />
</div>
</div>
#Html.Partial("_SiteFooter")
</div>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js"></script>
<script src="//ajax.googleapis.com/ajax/libs/jqueryui/1.10.0/jquery-ui.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/json2/20121008/json2.js"></script>
<script type="text/javascript" src="#Url.Content("~/Scripts/jquery-jtemplates.js")"></script>
<script type="text/javascript" src="#Url.Content("~/Scripts/agatha-common-scripts.js")"></script>
</body>
</html>
_ProductCatalogProduct.cshtml
#model BaseProductCatalogPageView
#using Agathas.Storefront.Controllers.ViewModels.ProductCatalog
#using Agathas.Storefront.UI.Web.MVC.Helpers
#{
Layout = "~/Views/Shared/_Layout.cshtml";
}
#if (IsSectionDefined("MenuContent"))
{
#RenderSection("MenuContent", required: false)
}
else
{
#Html.Partial("_Categories", ((BaseProductCatalogPageView)Model).Categories)
}
#RenderBody();
Index.cshtml
#model HomePageView
#using Agathas.Storefront.Controllers.ViewModels.ProductCatalog
#using Agathas.Storefront.Services.ViewModels
#using Agathas.Storefront.UI.Web.MVC.Helpers
#{
Layout = "~/Views/Shared/_ProductCatalogLayout.cshtml";
ViewBag.Title = "Home Page";
}
<img width="559" height="297"
src="#Url.Content("~/Content/Images/Products/product-lifestyle.jpg")"
style="border-width: 0px; padding: 0px; margin: 0px" />
<div style="clear: both;"></div>
<h2>Top Products</h2>
<div id="items" style="border-width: 1px; padding: 0px; margin: 0px">
<ul class="items-list">
#foreach (ProductSummaryView product in Model.Products)
{
<li class="item-detail">
<a class="item-productimage-link" href="#Url.Action("Detail", "Product", new { id = product.Id }, null)">
<img class="item-productimage" src="#Url.Content("~/Content/Images/Products/" + product.Id.ToString() +".jpg"))" /></a>
<div class="item-productname">#Html.ActionLink(product.BrandName + " " + product.Name, "Detail", "Product", new { id = product.Id }, null)</div>
<div class="item-price">#product.Price</div>
</li>
}
</ul>
</div>
Many thanks


This piece of code is throwing the exception: <a href="#Url.Content("")">. This happens because contentPath parameter of Url.Content method cannot be null or empty.


This can happen if you are assigning a value in the Child Razor view file that is also set in the parent one, but is displayed in a partial called by the Layout.cshtml
For example
_Layout.cshtml
|
(parent of)
|
Parent.cshtml
|
(parent of)
|
Page1.cshtml
In Page1.cshtml I do
ViewBag.Title= "Value1";
In Parent.cshtml I do the same but using the Umbraco call:
ViewBag.Title = Umbraco.Field("value").ToString();
The fix is to remove the assignment in Parent.cshtml. This appears to be a bug and I'm afraid that this is the only fix I've found. Hope it helps you out...


You should check if path not null or empty before use it as source of image
#foreach (var post in Model)
{
<div class="col-md-6">
<div class="product-list post-list">
#if (!string.IsNullOrWhiteSpace(post.Photo))
{
<a href="#" class="product-list-img">
<img src="#Url.Content(post.Photo)" alt="">
</a>
}
</div>
</div>

Related

(MVC) I have a search bar in my shared _Layout. It works from other Views but not in the _Layout

Basically what the title says. I have a view named books in which the search bar works perfectly and gives results. This is not happening in the _Layout shared view. I've tried several scripts and stuff but to no avail. Any advice?
This is the _Layout
<!DOCTYPE html>
#model IEnumerable<GoodReads.Models.Libro>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>#ViewBag.Title</title>
#Styles.Render("~/Content/css")
#Scripts.Render("~/bundles/modernizr")
</head>
<body>
<div class="navbar navbar-inverse navbar-fixed-top">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
#Html.ActionLink("Nombre de aplicación", "Index", "Home", new { area = "" }, new { #class = "navbar-brand" })
</div>
<div class="navbar-collapse collapse">
<ul class="nav navbar-nav">
<li>#Html.ActionLink("Inicio", "Index", "Home")</li>
<li>#Html.ActionLink("Registrar Turno", "AltaTurno", "Turno")</li>
<li>#Html.ActionLink("Buscar Libros", "Books", "Libro")</li>
<li>
#using (Html.BeginForm(FormMethod.Get))
{
<div>
#Html.TextBox("parametro")
<input type="submit" id="btnSearch" value="Some text"/>
</div>
}
</li>
</ul>
</div>
</div>
</div>
<div id="Books">
</div>
<div class="container body-content">
#RenderBody()
<hr />
<footer></footer>
</div>
#Scripts.Render("~/bundles/jquery")
#Scripts.Render("~/bundles/bootstrap")
#RenderSection("scripts", required: false)
</body>
</html>
This is the Books view
#model IEnumerable<GoodReads.Models.Libro>
#{
/**/
ViewBag.Title = "Books";
}
<head>
<link href="#Url.Content("~/Content/Style.css")" rel="stylesheet" type="text/css" />
</head>
<body>
#foreach (var item in Model)
{
<div style="margin-left: 350px; margin-top: 50px;">
<h1 class="title-font">
#item.Title
<small class="year-font">(#item.Year)</small>
</h1>
</div>
<div style="margin-left: 350px; margin-top: 10px;">
<p style="font-size: 22px;">by #item.Author</p>
</div>
<div style="margin-left: 350px; margin-top: 10px;">
<p style="font-size: 22px;">#item.ISBN</p>
</div>
}
</body>
The Controller for Books (The conection to the database is made through instead of doing it directly in the controller)
// GET: Libro
public ActionResult Index()
{
return View();
}
public ActionResult Books(string parametro)
{
List<Libro> listalibros = ADLibros.BuscarLibro(parametro);
return View(listalibros);
}

The problem is your form. You don't set its action. If you don't tell it it will use the default which is the controller that renders the page. So when your Books controller renders the page this works because the default controller will be the books controller. You need to specify the action of your get form explicitly. To see the problem use your browser developer tools to inspect the form for the books page and the other pages.
To fix (assuming your controller for books is called BooksController) change the form code in your _Layout page to this
#using (Html.BeginForm("books", "books", FormMethod.Get))
{
<div>
#Html.TextBox("parametro")
<input type="submit" id="btnSearch" value="Some text" />
</div>
}
We are using an overload of Html.BeginForm with 3 arguments. The first is the actionName, the second is the controllerName and the 3rd is the FormMethod.

How to add javascript from partial view to layout.cshtml page

I am trying to add javascript from partial view to layout.cshtml head section by calling
#RenderSection("scripts", required: false) but failing. Please view my partialview page code.
#{
Layout = null;
}
<div id="modal-login" class="ui-dialog ui-widget ui-widget-content ui-corner-all ui-front ui-dialog-buttons ui-draggable ui-resizable" title="Insert Student">
#using (Html.BeginForm("Login", "Home", FormMethod.Post, new { id = "form-login" }))
{
<div style="width:320px; height:320px; padding:0px 15px 15px 15px; border:solid 1px silver">
<div style="width:310px; height:30px; padding-bottom:0px; border:solid 0px red">
<div style="width:320px; height:30px; float:left;">
<div id="loading" style="height:15px; width:120px">
</div>
</div>
</div>
<div style="width:310px; height:30px; padding-bottom:35px; border:solid 0px red">
<div style="width:320px; height:30px; float:left;">
<input type="text" class="textbox" id="tbEmailAddress" name="tbFirstName" size="50" placeholder="First Name" />
</div>
</div>
<div style="width:310px; height:30px; padding-bottom:35px; border:solid 0px red">
<div style="width:320px; height:30px; float:left;">
<input type="text" class="textbox" id="tbPassword" typeof="password" name="tbFirstName" size="50" placeholder="First Name" />
</div>
</div>
<div style="width:320px; height:20px; padding-top:5px; padding-bottom:15px; border:solid 0px red; font-size:9px;">
<div style="width:310px; height:30px; float:left;">
<input id="btnLogin" class="submit ui-button ui-widget ui-state-default ui-corner-all ui-button-text-only" type="submit" value="Submit" style="border:1px solid gray; width:80px; height:25px ">
</div>
<div style="width:140px; height:30px; float:left;">
</div>
</div>
</div>
}
</div>
#section scripts
{
<script type="text/javascript">
$(document).ready(function () {
$("#modal-login").dialog({
show: "slide",
modal: true,
autoOpen: false,
});
$("#btnLogin").click(function () {
$("#modal-login").dialog("open");
return false;
});
});
</script>
}
And below is layout.chtml head section where iam calling #RenderSection("scripts", required: false) in the second last line of code.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>#ViewBag.Title - My ASP.NET Application</title>
#Styles.Render("~/Content/css")
#Scripts.Render("~/bundles/jquery")
#*#Scripts.Render("~/bundles/jqueryui")*#
<link href="~/Content/themes/base/jquery-ui-1.10.4.custom.css" rel="stylesheet" />
#*<script src="~/Scripts/jquery-1.10.2.js"></script>*#
<script src="~/Scripts/jquery-ui-1.10.4.custom.js"></script>
#RenderSection("scripts", required: false)
</head>
Please view my code and suggest if i missed anything? thanks.

the order #section scripts don't work in partialView, erase that and your script work.
but why you try to put the script in the head??
You call JQuery in the head the Script in the partial view works isn't necesary up in the head.
But if I understand your code you make a login form in a partial View for insert in the layout for use in entire web site?
well is more easy if you write the script directly in the head in layout, but better is create a script file with all custom script, mix this with the others scripts in one bundle and finally call this bundle in the head, with this way your site will more faster.

Jquery mobile dialog return in MVC post action

I am using JQuery Mobile 1.4 and MVC 4 to test dialog. But I don’t know what should be returned in dialog post action.
There are two questions:
1. What should be returned for dialog action
2. The input data in master page will be lost after dialog post
Master page View Code:
#model MvcApplication4.Models.ViewModel
#{
Layout = null;
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>TestDialog</title>
<meta name="viewport" content="width=device-width" />
<link href="/favicon.ico" rel="shortcut icon" type="image/x-icon" />
<link href="/Content/site.css" rel="stylesheet"/>
<link href="/Content/jquery.mobile-1.4.0-beta.1.css" rel="stylesheet" />
<script src="/Scripts/modernizr-2.6.2.js"></script>
<script src="/Scripts/jquery-2.0.3.js"></script>
<script src="/Scripts/jquery-ui-1.10.3.js"></script>
<script src="/Scripts/jquery.mobile-1.4.0-beta.1.js"></script>
</head>
<body>
<div id="layoutPage" data-role="page" data-theme="a">
<div id="layoutHeader" data-role="header">
<h2>TestDialog</h2>
</div>
<div id="layoutContent" data-role="content">
#using (Html.BeginForm())
{
<div>
<div class="editor-label">
#Html.LabelFor(model => model.IDDocument)
</div>
<div class="editor-field">
#Html.EditorFor(model => model.IDDocument)
#Html.ValidationMessageFor(model => model.IDDocument)
</div>
</div>
<div data-role="controlgroup" data-type="horizontal" data-mini="true">
<a id="addDetail" href="#Url.Action("ShowDialog", "SampleTest")" data-rel="dialog" data-role="button" >Test dialog</a>
</div>
}
</div>
</div>
<script>
$(document).on("mobileinit", function () {
$.mobile.ajaxEnabled = false;
});
</script>
</body>
</html>
Dialog View Code:
#model MvcApplication4.Models.ViewModel
#{
Layout = null;
}
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width" />
<title>DialogView</title>
</head>
<body>
<div id="detailPage1" data-role="dialog" >
#using (Html.BeginForm("ShowDialogActioinPost", "SampleTest", FormMethod.Post))
{
<div data-role="header">
<button type="submit" data-icon="check" class="ui-submit" data-inline="true" data-mini="true">Save</button>
<h2 >Dialog Information</h2>
<a data-rel="back" data-icon="back">Go back</a>
</div> //end header
<div data-role="content">
<div class="editor-label">
#Html.LabelFor(model => model.SeqNo)
</div>
<div class="editor-field">
#Html.EditorFor(model => model.SeqNo)
#Html.ValidationMessageFor(model => model.SeqNo)
</div>
</div>
}
</div>
</body>
</html>
Controller Code:
[HttpGet]
public ActionResult ShowDialog()
{
return View("DialogView");
}
[HttpPost]
public ActionResult ShowDialogActioinPost(ViewModel vm)
{
return View("Index"); // should return to master page, but it doesn't work
}
Thanks
Wilson

Try RedirectToAction("Index"); instead of View("Index");

You have to return the model to your master page.
[HttpPost]
public ActionResult ShowDialogActioinPost(ViewModel vm)
{
return View("Index", vm);
}

The answer is here.
Thanks
Wilson

how can i use Telerik Panel-bar binding to Site_map in MVC razor layout file?

I have MVC4 project that i want to use Telerik Q2 2013 panel bar in my _layout razor file for showing my menu. it uses a site map. in Telerik website it bind panel bar with controller .but i do not know how can i get controller for my layout page or is it true (it means is it true to use controller for _layout and how can i do this ?)i try section but i cant do any thing.
This is my _layout code:
enter link description here
<!DOCTYPE html>
<html lang="en">
#using StackExchange.Profiling;
#using Telerik.Web.Mvc.UI;
<head>
<meta charset="utf-8" />
<title>#ViewBag.Title - My ASP.NET MVC Application</title>
<link href="~/favicon.ico" rel="shortcut icon" type="image/x-icon" />
<meta name="viewport" content="width=device-width" />
#Styles.Render("~/Content/css")
#Scripts.Render("~/bundles/modernizr")
#(Html.Telerik().StyleSheetRegistrar()
.DefaultGroup(group => group
.Add("telerik.common.min.css")
.Add("telerik.webblue.min.css")
.Add("telerik.rtl.min.css")
.Combined(true)
.Compress(true))
)
</head>
<body>
<div class="container">
<div style="width: 950px; margin: 0 auto;">
<div id="Header" class="span-24 last" style="height: 100px"></div>
<div id="HeaderTitle" class="span-20 last" style="height: 50px">
<section id="login">
#Html.Partial("_LoginPartial")
</section>
</div>
<div id="Content" class="span-24 last" style="height: 400px">
<div id="Menu" class="span-4 last" style="width: 150px; float: right; height: 450px">
<div class="t-rtl">
#{ Html.Telerik().PanelBar()
.Name("PanelBar")
.HtmlAttributes(new { style = "width: 300px;" })
.BindTo("SparepartsManagement")
.Render();
}
</div>
</div>
<div style="float: right; width: 800px; height: 400px;">
<div id="HeadContent" style="height: 50px;">Head Content</div>
<div id="MainContetnt" style="height: 400px;">
#RenderSection("featured", required: false)
#RenderBody()
</div>
</div>
</div>
<div id="footer" class="span-24 last" style="height: 50px; text-align: center">
<h6 class="alt">Copyright &copy2013 artec</h6>
</div>
</div>
</div>
#Scripts.Render("~/bundles/jquery")
#RenderSection("scripts", required: false)
#MiniProfiler.RenderIncludes()
#(Html.Telerik().ScriptRegistrar()
.DefaultGroup(group => group
.Add("telerik.common.min.js")
.Add("telerik.panelbar.min.js")
.Compress(true)))
</body>
</html>

link ad new jquery tab and specify tab title and ajax url to load

Ive looked everywhere for this. How can a link specify the title of a tab and url to load?
Something like:
Create new tab dynamically
And how can I close the tab?
The closest I found is http://www.dhtmlgoodies.com/scripts/tab-view/tab-view.html but id prefer to use jquery
Thanks
UPDATE
I found jeasyui and looks really simple but Im having some problems. heres my code:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html style="height: 100%; overflow: hidden;">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>test</title>
<link rel="stylesheet" type="text/css" href="jeasyui/themes/default/easyui.css">
<link rel="stylesheet" type="text/css" href="jeasyui/themes/icon.css">
<link rel="stylesheet" type="text/css" href="css/main.css">
<script type="text/javascript" src="jeasyui/jquery-1.7.1.min.js"></script>
<script type="text/javascript" src="jeasyui/jquery.easyui.min.js"></script>
<script type="text/javascript">
function open1(title,plugin){
if ($('#tt').tabs('exists',title)){
$('#tt').tabs('select', title);
} else {
$('#tt').tabs('add',{
title:title,
href:plugin,
closable:true,
extractor:function(data){
var tmp = $('<div></div>').html(data);
data = tmp.find('#content').html();
tmp.remove();
return data;
}
});
}
}
</script>
</head>
<body class="easyui-layout" style="text-align:left">
<div region="north" border="false" style="background:#666;text-align:center">
<div id="header-inner">
<table cellpadding="0" cellspacing="0" style="width:100%;">
<tr>
<td rowspan="2" style="width:20px;">
</td>
<td style="height:52px;">
<div style="color:#fff;font-size:22px;font-weight:bold;">
TEST
</div>
</td>
<td style="padding-right:5px;text-align:right;vertical-align:bottom;">
</td>
</tr>
</table>
</div>
</div>
<div region="west" border="false" split="true" title="Menu" style="width:250px;padding:5px;">
<ul class="easyui-tree">
<li iconCls="icon-base"><span>Base</span><ul>
<li iconCls="icon-gears">test</li>
<li iconCls="icon-gears">test1</li>
<li iconCls="icon-gears">test2</li>
<li iconCls="icon-gears">test3</li>
</ul>
</div>
<div region="east" border="false" split="true" title="Live " style="width:250px;padding:5px;">
<h1>Hello</h1>
</div>
<div region="center" border="false">
<div id="tt" class="easyui-tabs" fit="true" border="false" plain="true">
<div title="Welcome" href="dashbord.php"></div>
</div>
</div>
</body>
</html>
It adds a new tab with a title but it doesn't load the URL(demo.php)

Use jQuery UI !!!
http://jqueryui.com/demos/tabs/#manipulation

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