Yet again I managed to ask before finding the correct search keywords in Google.

In the layout

    @RenderSection(&quot;footer&quot;, required: false)  

View example

    &lt;h2&gt;About&lt;/h2&gt; 
        
    &lt;p&gt;   
        Some stuff about this page.   
    &lt;/p&gt; 
    
    &lt;p&gt; 
        The current date and time: @DateTime.Now  
    &lt;/p&gt; 
        
    @section footer { 
    
        Copyright (c) 2010, Robert Sundstr&#246;m. 
    
    }


Couldn&#39;t leave a comment sorry but you can remove the &quot;required:&quot;

    @RenderSection(&quot;footer&quot;, false)

In JavaScript/jQuery, how can I scale a varying-length line of text inside a fixed-width Div so that the one line always fits inside the Div (as one line)?

JavaScript Scale Text to Fit in Fixed Div

I have a variable that holds the values &#39;Weekly&#39;, &#39;Monthly&#39;, &#39;Quarterly&#39;, and &#39;Annual&#39;, and I have another variable that holds the values from 1 to 10.

    switch ($var2) {
        case 1:
            $var3 = &#39;Weekly&#39;;
            break;
        case 2:
            $var3 = &#39;Weekly&#39;;
            break;
        case 3:
            $var3 = &#39;Monthly&#39;;
            break;
        case 4:
            $var3 = &#39;Quarterly&#39;;
            break;
        case 5:
            $var3 = &#39;Quarterly&#39;;
            break;
        // etc.
    }

It isn&#39;t beautiful, because my code has a lot of duplicates. What I want:

    switch ($var2) {
        case 1, 2:
            $var3 = &#39;Weekly&#39;;
            break;
        case 3:
            $var3 = &#39;Monthly&#39;;
            break;
        case 4, 5:
            $var3 = &#39;Quarterly&#39;;
            break;
    }

How can I do it in PHP?



PHP switch case more than one value in the case

I can use ContentPlaceHolder&#39;s with Webforms view engines to put stuff in different locations in the master page.

How do I do that with Razor?

        &lt;div id=&quot;content&quot;&gt;
            &lt;asp:ContentPlaceHolder ID=&quot;MainContent&quot; runat=&quot;server&quot;&gt;
            &lt;/asp:ContentPlaceHolder&gt;
        &lt;/div&gt; 
        &lt;div id=&quot;footer&quot;&gt;
            &lt;asp:ContentPlaceHolder ID=&quot;Footer&quot; runat=&quot;server&quot;&gt;
            &lt;/asp:ContentPlaceHolder&gt;
        &lt;/div&gt;


ContentPlaceHolder in Razor?

I can use ContentPlaceHolder's with Webforms view engines to put stuff in different locations in the master page.
How do I do that with Razor?
<pre><code class="hljs language-ini"> &#x3C;div id="content">
 &#x3C;asp:ContentPlaceHolder ID="MainContent" runat="server">
 &#x3C;/asp:ContentPlaceHolder>
 &#x3C;/div> 
 &#x3C;div id="footer">
 &#x3C;asp:ContentPlaceHolder ID="Footer" runat="server">
 &#x3C;/asp:ContentPlaceHolder>
 &#x3C;/div>
</code></pre>

Im trying to get a list of line items to a webpage using JSON, which will then be manipulated and sent back to the server by ajax request using the same JSON structure that arrived (except having had a field values changed). 

Receiving data from the server is easy, manipulation even easier! but sending that JSON data back to the server for saving... suicide time! PLEASE can someone help!

**Javascript**

    var lineitems;

    // get data from server
    $.ajax({
        url: &#39;/Controller/GetData/&#39;,
        success: function(data){
            lineitems = data;
        }
    });
    
    // post data to server
    $.ajax({
        url: &#39;/Controller/SaveData/&#39;,
        data: { incoming: lineitems }
    });

**C# - Objects**

    public class LineItem{
        public string reference;
        public int quantity;
        public decimal amount;
    }

**C# - Controller**

    public JsonResult GetData()
    {
        IEnumerable&lt;LineItem&gt; lineItems = ... ; // a whole bunch of line items
        return Json(lineItems);
    }
    
    public JsonResult SaveData(IEnumerable&lt;LineItem&gt; incoming){
        foreach(LineItem item in incoming){
            // save some stuff
        }
        return Json(new { success = true, message = &quot;Some message&quot; });
    }

The data arrives at the server as serialized post data. The automated model binder tries to bind `IEnumerable&lt;LineItem&gt; incoming` and surprisingly gets the resulting `IEnumerable` has the correct number of `LineItems` - it just doesnt populate them with data.

**SOLUTION**

Using answers from a number of sources, primarily `djch` on another stackoverflow post and `BeRecursive` below, I solved my problem using two main methods.

*Server Side* 

The deserialiser below requires reference to `System.Runtime.Serialization` and `using System.Runtime.Serialization.Json`

	private T Deserialise&lt;T&gt;(string json)
	{
	    using (var ms = new MemoryStream(Encoding.Unicode.GetBytes(json)))
	    {
	        var serialiser = new DataContractJsonSerializer(typeof(T));
	        return (T)serialiser.ReadObject(ms);
	    }
	}
	
	public void Action(int id, string items){
	    IEnumerable&lt;LineItem&gt; lineitems = Deserialise&lt;IEnumerable&lt;LineItem&gt;&gt;(items);
	    // do whatever needs to be done - create, update, delete etc.
	}

*Client Side*

It uses json.org&#39;s stringify method, available in this dependecy https://github.com/douglascrockford/JSON-js/blob/master/json2.js (which is 2.5kb when minified)

    $.ajax({
        type: &#39;POST&#39;,
        url: &#39;/Controller/Action&#39;,
        data: { &#39;items&#39;: JSON.stringify(lineItems), &#39;id&#39;: documentId }
    });

Posting JSON Data to ASP.NET MVC

I am having difficulty with Html Helpers when used with Razor.  Said helpers worked fine in MVC 2 with the web form view engine.  But not in razor.  The error I get at runtime is:

    Compiler Error Message: CS1502: The best overloaded method match for &#39;System.Web.WebPages.WebPageExecutingBase.Write(System.Web.WebPages.HelperResult)&#39; has some invalid arguments
    
    Source Error:
    
    
    Line 1:  @using Wingspan.Web.Mvc;
    Line 2:  @Html.IncrementalMenu(MenuBlock.Site)

Expanding the Show Detailed Compiler Output reveals:

    d:\...\Views\Shared\MenuTop.cshtml(2,1): error CS1502: The best overloaded method match for &#39;System.Web.WebPages.WebPageExecutingBase.Write(System.Web.WebPages.HelperResult)&#39; has some invalid arguments
    d:\...\Views\Shared\MenuTop.cshtml(2,7): error CS1503: Argument 1: cannot convert from &#39;void&#39; to &#39;System.Web.WebPages.HelperResult&#39;

That indicates to me that razor doesn&#39;t like my helper, IncrementalMenu, returning void (which works fine in MVC 2 web form engine views).

I get no errors at Compile time, although the line of code (@Html.IncrementalMenu(...)) is red underlined with the following message:

    Cannot implicitly convert type &#39;void&#39; to &#39;object&#39;


IncrementalMenu is in the Wingspan.Web.Mvc namespace.  It&#39;s signature is as follows:

    public static void IncrementalMenu(this HtmlHelper html, MenuBlock menuBlock)
    {
        // Uses an HtmlTextWriter to render a menu from the sitemap
    }

I&#39;m blowed if I know what is wrong...

PS:

The MenuBlock parameter is just an enum that identifies how the menu should render.  Don&#39;t fixate on this as that is fine.

ASP.NET MVC: Custom Html Helpers in Razor

I have a textarea control that accepts input. I am trying to later render that text to a view by simply using:

&gt; @Model.CommentText

This is properly encoding any values.  However, I want to replace the line break characters with `&lt;br /&gt;` and I can&#39;t find a way to make sure that the new br tags don&#39;t get encoded. I have tried using HtmlString but haven&#39;t had any luck yet. 

Replace line break characters with &lt;br /&gt; in ASP.NET MVC Razor view

I want to prevent users submitting forms multiple times in .NET MVC. I&#39;ve tried several methods using Javascript but have had difficulties getting it to work in all browsers. So, how can I prevent this in my controller? It there some way that multiple submissions can be detected?


How do I prevent multiple form submission in .NET MVC without using Javascript?

I was trying to use the following statement:

    @Html.Test&lt;ISQL&gt;().Nand()

However, Razor is choking at the &lt; before the ISQL.

Any official work around for it?

How to use generic syntax inside a Razor view file?

I&#39;ve got safe/sanitized HTML saved in a DB table.

How can I have this HTML content written out in a Razor view? 

It always escapes characters like `&lt;` and ampersands to `&amp;amp;`.

Writing/outputting HTML strings unescaped

I&#39;m trying to figure out the proper Razor syntax to get a JavaScript file for a particular *.cshtml to be in the head tag along with all the other include files that are defined in _Layout.cshtml.


Content Type	Original Author	Original Content on Stackoverflow
Question	jgauffin	View Question on Stackoverflow
Solution 1 - asp.net Mvc	jgauffin	View Answer on Stackoverflow
Solution 2 - asp.net Mvc	Kyle	View Answer on Stackoverflow

ContentPlaceHolder in Razor?

asp.net Mvc Problem Overview

asp.net Mvc Solutions

Solution 1 - asp.net Mvc

Solution 2 - asp.net Mvc

PHP switch case more than one value in the case

JavaScript Scale Text to Fit in Fixed Div

Attributions