ASP.NET MVC 3 use C# code in cshtml file

Question

I'm a little new to ASP.NET MVC3. I have this code in a cshtml file

    @grid.GetHtml(
        htmlAttributes: new { id = "grid" },
        tableStyle: "grid",
        headerStyle: "header",
        rowStyle: "row",
        footerStyle: "footer",
        alternatingRowStyle: "altRow",
        columns: grid.Columns(
            grid.Column(header: "", format: @<text><input name="Checked" type="checkbox" value="@item.Key" /></text>, style: "CheckboxColumn", canSort: true),
            grid.Column("Name", "Name"),
            grid.Column("Address", "Address"),
            grid.Column("City", "City"),
            grid.Column("PhoneNumber", "Phone Number"),
            grid.Column("", format: (item) =>
            {

                if (item.ID.Length > 0)
                {
                    //CODE GOES HERE
                    return Html.Raw(string.Format("<text><img src=\"{0}\" alt=\"Image\" class=\"ToolTip\" title=\"ID # {1} <br> \" /></text>", Url.Content("~/images/coupled.png"), @item.ID.ToString()));
                }
                else
                {
                    return Html.Raw("<text></text>");
                }
            }),
        ))

What I want is to write a C# Code at the //CODE GOES HERE section. in order to change the Url.Content("~/images/coupled.png") epending on item ID.

So basically I want something like:

string URLOfPic;
if(item.ID > 1000)
{
    URLOfPic="~/images/aaa.png
}
else
{
    URLOfPic="~/images/bbb.png
}

and finally to use Url.Content(URLOfPic)

So how can I use that C# code in the page?

I hope I was clear. Thank you very much for any help

PS: I want it to be a C# code and not a javascript or anything else. In normal ASP.NET I can just use the code behind to do it. but in MVC3 I have no idea how

Have you tried writing that code? What happens if you do? Are you getting an error? What does the error say? What isn't happening that you thought should happen? — Greg B
– Greg B, Commented Apr 4, 2012 at 21:05
Create a helper method. weblogs.asp.net/scottgu/archive/2011/05/12/… — CrazyDart
– CrazyDart, Commented Apr 4, 2012 at 21:06

Bob The Janitor · Accepted Answer · 2012-04-04 21:31:17Z

1

Being new to Asp.net mvc let me give you some advice, Don't Do That! The most code you should have in a view is a for loop, all of that kind of logic should be done in the action.

basically take your data and do all logic and formatting in the action and add it to a view model then pass that to the view. Other wise your going to create very brittle code blocks that won't error until run time

answered Apr 4, 2012 at 21:31

Bob The Janitor

20.8k10 gold badges51 silver badges72 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

dachusa · Accepted Answer · 2012-04-05 17:06:26Z

1

Modify your item class to add an image class. In the image class you can add Image.URL, Image.Title. This way in the controller you can assign the item an image based on it's ID. This will also allow you to more easily modify the image URLs at a single point of code, instead of modifying in every view that you use this logic in.

answered Apr 5, 2012 at 17:06

dachusa

111 bronze badge

Comments

mgnoonan · Accepted Answer · 2012-04-04 21:08:17Z

0

I think you are close, did this not work?

if (item.ID.Length > 0)
{
    string URLOfPic; 
    if(item.ID > 1000) 
    {     
        URLOfPic="~/images/aaa.png";
    } else {     
        URLOfPic="~/images/bbb.png";
    }
    return Html.Raw(string.Format("<text><img src=\"{0}\" alt=\"Image\" class=\"ToolTip\" title=\"ID # {1} <br> \" /></text>", Url.Content(URLOfPic), @item.ID.ToString()));                 
}

answered Apr 4, 2012 at 21:08

mgnoonan

7,2005 gold badges26 silver badges28 bronze badges

Collectives™ on Stack Overflow

ASP.NET MVC 3 use C# code in cshtml file

3 Answers 3

Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related