Razor syntax in c# code block

Question

Trying to populate table data with:

        @foreach (var mc in Model.McList)
        {
            <tr>
                <td>
                    @(@mc.Amount != null ? @mc.Amount @@ @mc.Price : null)
                </td>
            </tr>
        }

but stuck in razor syntax errors:

expect :

expect )

or ambiguous invocation: void Write

Amount is int? nullable type.

@(@mc.Amount != null ? @mc.Amount : null) //works only with one property
@if (@mc.Amount != null) {@mc.Amount <text>@@</text> @mc.Price} //works
@if (@mc.Amount != null) {@mc.Amount @@ @mc.Price} //error
@if (@mc.Amount != null) {@mc.Amount @:@@ @mc.Price} //error

is it shorter way to check for null value without if?

what are the specific errors? I'd say d.Price is not int (decimal) — Pedro
– Pedro, Commented Feb 13, 2014 at 19:52
Of course Price is decimal. And i want to achieve similar output: e.g. 120 @ 30.50 — Arvis
– Arvis, Commented Feb 13, 2014 at 20:05
Does this work? @(mc.Amount != null ? mc.Amount.ToString() + Html.Raw("@") + mc.Price.ToString() : "") — Matt
– Matt, Commented Feb 13, 2014 at 20:23

Pedro · Accepted Answer · 2014-02-13 20:21:16Z

1

I don't think that's possible. If you must do that in one line, the closest I get is:

@(@mc.Amount != null ? string.Format("{0} @ {1}", mc.Amount, mc.Price) : null)

I'd probably never do that myself!

answered Feb 13, 2014 at 20:21

Pedro

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3 Comments

Arvis Over a year ago

So looks like IF operator is only option there!?

Pedro Over a year ago

Don't know, but what's wrong with an IF operator? Is't the construct <exp> ? <exp> : <exp> just syntactic sugar for an if/else? And besides, its not like we can live without IF statements :)

Arvis Over a year ago

For me no problem with IF, just looking for shortened code :) As i use that construct in c# often.

zimdanen · Accepted Answer · 2014-02-13 20:31:37Z

0

I think you're trying to make something that looks like this:

5 @ 20

If so, you need to keep in mind that everything between @( and ) is pure C# code; what you need to do is something like this:

@(mc.Amount != null ? string.Format("{0} @ {1}", mc.Amount, mc.Price) : "")

answered Feb 13, 2014 at 20:31

zimdanen

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1 Comment

Arvis Over a year ago

Tnx, for opening my eyes. Now i get it better - @ usage in razor.

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