Using Html.ActionLink() with ASP.NET MVC & Spark - Syntax? - asp.net-mvc

All,
Doing some experimenting with Spark and MVC within NerdDinner. The normal/aspx view works well, and I haven't touched any of the controller code so I'm pretty sure it's not that.
<viewdata model="System.Collections.Generic.IEnumerable[[NerdDinner.Models.Dinner]]"/>
<set Title="'Upcoming Dinners'"/>
<content:main>
<li each="p in Model">
!{Html.ActionLink(p.Title, 'Details', 'Dinners')}
</li>
</content:main>
Given the code above, the ActionLink gets rendered as http://serverName/Controller/Action/
Which is good. I start hitting a wall when I try to provide the ID to my action method. As far as I can tell from the Spark sample docs, I should be able to do something like this:
!{Html.ActionLink(p.Title, 'Details', 'Dinners', new {id = p.DinnerID} )}
However, that throws an exception:
" unexpected token '{' "
I'm hoping it's something silly I'm missing...any suggestions?


I believe there should be another parameter to Html.ActionLink for HTML attributes on the action link. Try:
!{Html.ActionLink(p.Title, 'Details', 'Dinners', new {id = p.DinnerID}, null )}

Related

Getting issue to generate Absolute Url's in MVC

Hi I have created a mvc website which is working fine with localhost if i am coding something like this:
<base href="http://localhost:5400/" />
<li><a class="home" href="/Home/Index/">Home</a></li>
<li class="wish"><a class="wishlist" href="/Products/Index/" id="wishlist-total">Products</a></li>
<li><a class="account" href="/Home/Contact/">Contact Us</a></li>
But now to run it on live if i am trying to changing this:
<base href="http://localhost:5400/" />
with this:
<base href="HttpContext.Current.Request.Url" />
then its actually taking full root url everytime.So whenever i am clicking on any menu and moves to next menu it regain previous menu path also.
For this issue i tried below code which is also not working.
<li>Home</li>
<li>Products</li>
<li> Contact</li>
According me this code will work,But if i am trying to pass "null" as third parameter then i gives error:
ERROR: 'null' is not declared. 'Null' constant is no longer supported; use 'System.DBNull' instead.
Can someone please suggest what i should need to change?
Thanks

Quick fix...
#Url.Action("Index", "Home")
There's no need to enter null as a parameter... if you want to indicate that a parameter can be null, then you need to define that in the route its self, and if the parameter is missing, then it will know that the value is null implicitly...
// http://yoursite/Example/{id}
[Route("~/Example/{id}"] // Can't be null
public ActionResult Example(string id){ return View(); }
// http://yoursite/ExampleTwo/
[Route("~/ExampleTwo/{id?} // Can be null
public ActionResult ExampleTwo(string id) { return View(); }
TLDR if you want more errors...
Your issue is actually indicating a much larger issue... it looks as if you're accepting a query from a URI directly into a SQL query... if you are doing that, you're opening yourself up to injection attacks and as much as a part of me feels that anyone who does that pretty much has it coming to them... I can't stand by and just say nothing... sanitize any data that you receive from the user, no matter where it's coming from, example
Remove all those magic strings... you shouldn't have any strings such as the one you just displayed...
// Bad...
<a class="home" href="/Home/Index/">
// Better...
<a class="home" href="#Url.Action("Index", "Home")">Home</a>
// Good
#Html.ActionLink("Home", "Index", "Home")

asp.net-mvc routing does not route with this anchor element

For asp.net-mvc routing, my link is this:
<a href='product/product_description/#:product_id#' >
but it is passing as this:
http://localhost:58166/product/product/product_description/1102
I expected it to be:
http://localhost:58166/product/product_description/1102
What am I doing wrong?

You need to perpend forward slash
<a href='/product/product_description/#:product_id#' >
However you would be much better off using a helper rather than hard coding
#Html.ActionLink("Link text", "product_description", "product" { new ID = ?? })

ActionLink MVC4 Razor with icon class

I have this code HTML:
<a class="tooltip-tip2 ajax-load" href="...."><i class="entypo-menu"></i><span>Page Example</span></a>
And I would use this:
#Html.ActionLink("Crea mensilizzazione " + s.nome, "CheckCredentials", "giornaliero", new { #class= "tooltip-tip2 ajax-load" , id=s.id, isScuole = false},null)
How can add the <i class="entypo-menu"></i> in this #HTML.ActionLink???

I don't think the ActionLink helper can accomplish this. but you can use #Url.Action() in custom markup to accomplish the same thing:
<a class="tooltip-tip2 ajax-load" href="#Url.Action("CheckCredentials", "giornaliero")"><i class="entypo-menu"></i><span>Page Example</span></a>
Url.Action basically just creates the URL for the link, not any of the markup related to building the link itself. So it can be used in all sorts of custom client-side code. (For example, another common use is to embed it in some JavaScript code to define an AJAX service URL.)
Edit: You can add route values exactly the same way as you do with #Html.ActionLink:
#Url.Action("CheckCredentials", "giornaliero", new { id = s.id, isScuole = false })

Thickbox in asp.net mvc

I want to use Thickbox in my site.
I have the following code:
<img src='#Url.Action("GetSchemaImage", "Hall", new {folderName = #Model.FolderName })'/>
This is generated markup:
<a class="thickbox" href="/Hall/GetSchemaImage?folderName=marineclub"><img src="/Hall/GetSchemaImage?folderName=marineclub"></a>
The image shows correctly, but when I click on it, it opens in the current window.
How to resolve it?
Thanks

try another signature for the HTML ActionLink helper and see if this works
#Html.ActionLink("GetSchemaImage", "Hall",new {folderName = #Model.FolderName },new{})

Wicket link - is adding a label necessary to set the text?

Currently, I do this:
<li><a wicket:id="link" href="#"><span wicket:id="name">jawa01</span></a></li>
and
item.add( new BookmarkablePageLink("link", ResourcePage.class)
.setParameter("name", item.getModelObject().getName())
.add( new Label("name", item.getModelObject().getName()) )
);
I want to do ommit the element:
<li><a wicket:id="link" href="#">...</a></li>
How should the java code look?
I expect something like
item.add( new BookmarkablePageLinkWithLabel(
"link", ResourcePage.class, item.getModelObject().getName())
.setParameter("name", item.getModelObject().getName())
);
Thanks, Ondra

This is not built into Wicket, with a couple of reasons presented here.
However, you can certainly make you own component out of what you currently do to make your life easier. The constructor would take both the model for the link and the model for the label.

Resources