Returning JavaScript from asp.NET core controller

Question

I know there have been a lot of posts about this, but I cannot get any of the suggestions like...

Return Content("<script>alert('Hello world!');</script>")

... to work

We are just about to move from MVC to core - this worked in MVC and displayed a bootstrap modal, but I gather support for this method has been dropped in core.

This is what launches the modal 'PopupModal'

 Public Function ModalValidation(Message As String) As String
    Try
        Dim SB As New StringBuilder
        SB.Append("$(document).ready(function(){")
        SB.Append("$('#PopupModal').modal();")
        SB.Append("var vBody = document.getElementById('ModalBodyText');")
        SB.Append("vBody.innerHTML = '" & Message & "';")
        SB.Append("var vTitle = document.getElementById('ModalTitle');")
        SB.Append("vTitle.innerHTML = 'Validation';")
        SB.Append("vTitle.style.color = 'orange';")
        SB.Append("});")
        Return SB.ToString
    Catch ex As Exception
        EmailError(ex, 170, "Functions")
        Return Nothing
    End Try
End Function

and on the controller

 Private Function Modal(ModalScript As String) As JavaScriptResult
        Return JavaScript(ModalScript)
    End Function

called like this

Return Modal(ModalValidation("Got here"))

It looks like I can recreate JavaScriptResult like this

Public Class JSResult
        Inherits ContentResult
        Public Sub New(ByVal script As String)
            Me.Content = script
            Me.ContentType = "application/javascript"
        End Sub
    End Class

But then what do I use in place of

Return JavaScript(ModalScript)

Thank you

isnt a best practice friend

Enrique YC
– Enrique YC

2017-03-09 00:10:13 +00:00
Commented Mar 9, 2017 at 0:10 — Enrique YC
– Enrique YC, Commented Mar 9, 2017 at 0:10

gchq · Accepted Answer · 2017-03-09 15:09:51Z

0

Figured it out

 Private Function Modal(ModalScript As String) As JSResult
        Return New JSResult(ModalScript)
    End Function

answered Mar 9, 2017 at 15:09

gchq

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Comments

Ankur Vijay · Accepted Answer · 2017-03-14 09:33:28Z

-1

public ActionResult Welcome(){
  return Content("You are welcomed");
}

call this function through ajax and handle response.

answered Mar 14, 2017 at 9:33

Ankur Vijay

1

1 Comment

gchq Over a year ago

For some reason Return Content doesn't do anything (see first part of the question)

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