Calling JavaScript function in MVC 5 Razor view

Question

I have seen in another post that you can call a JavaScript function in your razor code like so:

@:FunctionName()

For me though this only outputs the actual words FunctionName()

Here is my view:

@model PriceCompare.Models.QuoteModel

@{
    ViewBag.Title = "Quote";
}

<h2>Quote</h2>

@if (@Model.clarify == true)
{
    // do drop down loic
    @:ShowClarify();
}
else
{
    // fill quote
    @:ShowQuote();
}
<div class="clarify">

    You can see the clarify div
</div>
<div class="quote">

    You can see the quote div
</div>

@section head {

    <script type="text/javascript">

        $(document).ready(
            function ShowQuote() {
                $(".quote").show();
            },
            function ShowClarify() {
                $(".clarify").show();
            }
        );

    </script>
}

Is it because I have nested it in an `@if'? Anyway around this?

jrummell · Accepted Answer · 2014-11-04 13:23:06Z

17

You need to put your javascript in a <script> tag, and you need to call the functions within their scope:

<script type="text/javascript">

    $(document).ready(
        function ShowQuote() {
            $(".quote").show();
        },
        function ShowClarify() {
            $(".clarify").show();
        }

        @if (@Model.clarify == true)
        {
            // do drop down loic
            ShowClarify();
        }
        else
        {
            // fill quote
            ShowQuote();
        }
    );

</script>

answered Nov 4, 2014 at 13:23

jrummell

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5 Comments

Guerrilla Over a year ago

Thanks. Is the "@:" syntax a thing? Was it discontinued?

Chris Pratt Over a year ago

The @: syntax just tells Razor to treat what follows as plain text. Within the context of a code block, this would be necessary to prevent Razor from attempting to run the FunctionName() method in a C#/VB context instead of a JavaScript context, where it actually exists.

jrummell Over a year ago

@Guerrilla I didn't put this in Visual Studio, so it's possible that you may still need @: in front of the javascript function calls.

d219 Over a year ago

I believe it will need @: in front from what I've just been trying (so @: ShowClarify(); and @: ShowQuote(); )

Volunteer Bot Sep 9 at 9:53

DotNet.invokeMethodAsync( "your namespace", "function name"). then ( data=> {} } );

showdev · Accepted Answer · 2016-07-14 21:04:30Z

3

If you are passing any parameter to the JavaScript function, it must be enclosed with quotes ('').

foreach (var item in files)
    {
        <script type="text/javascript">
            Attachment(**'@item.FileName'**, **'@item.Size'**);
        </script>  
    }

edited Jul 14, 2016 at 21:04

showdev

29.3k37 gold badges61 silver badges82 bronze badges

answered Jul 14, 2016 at 20:32

suresh mathan

411 bronze badge

1 Comment

Tibrogargan Over a year ago

You should use the code formatting options (select the code, Ctrl-k) to make sure that your code is displayed in the manner you intended it to be in your answer. Also, it's better to use something from the question in your example to make it clearer what you mean.

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