access to javascript var from actionlink

Question

In my page I have the following script:

<script language="javascript">
    var needToConfirm = true;

    window.onbeforeunload = confirmExit;

    function confirmExit() {
        if (needToConfirm) {
            return "You have attempted to leave this page. " +
                "If you have made any changes to the fields without clicking the Save button, your changes will be lost." +
                " Do you wish to proceed?";
        }
    }
</script>

I am able to set the needToConfirm value in a button like this:

<input type="submit" value="Save" name="_submitButton" onclick="needToConfirm = false"/>

I want to know if there's a similar way to do this in an actionLink like this one:

@Html.ActionLink("Remove this item", "RemoveItemEdit", new
                            {
                                @_cardID = Model.mPackToEdit.mListCardPack[i].mCard.mMasterCard.mCardID,
                                needToConfirm = false
                            })

I've tried this but it doesn't work.

Rory McCrossan · Accepted Answer · 2013-09-04 14:27:17Z

2

The third parameter of ActionLink is the route values. You need to put the needtoconfirm in the fourth parameter - htmlAttributes. Try this:

@Html.ActionLink(
    "Remove this item", 
    "RemoveItemEdit", 
    new { @_cardID = Model.mPackToEdit.mListCardPack[i].mCard.mMasterCard.mCardID },
    new { "onclick" = "needToConfirm = false" })

answered Sep 4, 2013 at 14:27

Rory McCrossan

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Comments

Matt Houser · Accepted Answer · 2013-09-04 14:26:51Z

1

The version of Html.ActionLink that you are currently using is setting the route values. You want to set the html values.

Try this:

@Html.ActionLink("Remove this item", "RemoveItemEdit", 
    new { 
        _cardID = Model.mPackToEdit.mListCardPack[i].mCard.mMasterCard.mCardID
    },
    new { 
        needToConfirm = false
    });

answered Sep 4, 2013 at 14:26

Matt Houser

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1 Comment

Rory McCrossan Over a year ago

Just FYI, this would create a parameter called needtoconfirm, not a onclick param setting the value.

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