<% foreach (var car in Model.AvailableCars)
{ %>
<label><%car.Text; %></label>
<% } %>
The above code throws the error
Only assignment, call, increment, decrement, and new object expressions can be used as a statement.
I know I can do it with html helpers, but why won't the above code work?
<label><%car.Text; %></label>
should read
<label><%= car.Text; %></label>
^
or you can use
<label><%: car.Text; %></label>
^
which will automatically HTML.Encode the value for you.
Add a colon to the car.Text tag to write it to the document, such as:
<label><%: car.Text %></label>
Here's a good explanation of <%: versus <%= asp.net mvc tags: <%: %> vs. <%= %>
Related
I'm using Skeleton for my 16 columns grid system on Silverstripe.
My code below:
<% loop $AllChildren %>
<div class="three columns"><h5>$Title</h5></div>
<% end_loop %>
produces:
Children1 Children2 Children3 Children4 Children5
Children6 Children7 Children8 Children9 Children10
My question is how do I put a space between the rows so the output will
be like:
Children1 Children2 Children3 Children4 Children5
Children6 Children7 Children8 Children9 Children10
In SS3 you can use $MultipleOf() (api docs) in your templates to output something every nth item, e.g.
<% loop $AllChildren %>
<div class="three columns"><h5>$Title</h5></div>
<% if $MultipleOf(5) %>
<hr class="extra-space">
<% end_if %>
<% end_loop %>
I am arranging a dynamic table of textboxes using a loop.
Please review the following code segment in view -
<% foreach (var item in Model.Names) { %>
<% =Html.TextBoxFor(item.Name)%>
<% } %>
The problem here is that i want their unique ids to be generated so that i could access each textbox using JS.
Any help is highly appreciated.
Regards
Irfan
Do this instead:
<div class="editor-field">
<% for (int i = 0; i < Model.Names.Count; i++) { %>
<%: Html.TextBoxFor(m => m.Names[i].Name) %>
<% } %>
</div>
I'm currently learning MVC2, and I have seen three variants of the tags that contain the actual code for a View:
<% ... %>
With a = after the %
<%= ... %>
and with a : after the %
<%: ... %>
What is the difference of these three code containers?
And are there any other variants of these?
<% ... %>
is just a block of code
<%: "blah blah" %>
Is Shorthand for
<%= Html.Encode("blah blah") %>
Which is shorthand for
<% Response.Write(Html.Encode("blah blah")) %>
1.<% ... %> just block of code
<%if (Model.HelloWorld != null){%>
Hello World!!
<%} %>
2.<%= ... %> plain text without escaping
<%=Model.HelloWorld %>
3.<%: ... %> text with escaping equal <%= Server.HtmlEncode(Model.Something) %> Details here
<%:Model.HelloWorld %>
The title contain my whole question.
<% /* Is a codeblock */ for(int i = 0;i<5;i++) { } %>
<%= "Writes something to the output stream" /* Response.Write */ %>
<%: "HTML-encodes this <b>hello</b> to the output stream" %>
For a good explanation about the <%, <%= and <%# syntax and their usage, please read this article.
The <%: syntax is new in .Net 4 and is used for encoding HTML output. See this article of ScottGu for more information about that.
<% %> is used just to execute server side code
ex. <% if(oject){...} %>
<%= %> is used execute server side code and return value
ex. <%=Html.Encode(Item["Name"]) %>
<%: %> is used execute server side code but it will return Html
Encoded string
ex. <%Item["Name"] %>
Source : What is difference between these tags <%, <%: , and <%= in ASP.NET MVC 2?
I have the code (snippet):
The Model is the IEnumerable object of the Person's class:
<% foreach (var item in Model)
{ %>
<tr>
<td><%= Html.DisplayFor(x=>item.Name) %></td>
</tr>
<% } %>
it renders only labels like that:
<td>Tommy</td>
According to the link it should be rendering a HTML markup something like:
but there is no the ID and the NAME property. Why ?
Your using the wrong template your should be using Html.EditorFor(x => x.Name)
Edit: I said you were using the wrong template because in your image it is a textbox displayed, not a label...
the default ouptut of Displayfor is
<%# Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl" %>
<%= Html.Encode(ViewData.TemplateInfo.FormattedModelValue) %>
according to Brad Wilson. You could easily build your own, look the other post of Brad Wilson for examples.
Or you could simply call Html.LabelFor(x => x.Name)
If you always want that, add a template, name String.ascx in your Views/Share/DisplayTemplate and just put the following in :
<%# Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl" %>
<%= Html.Label("", ViewData.TemplateInfo.FormattedModelValue) %>