Javascript alert not working from code behind

Question

I am generating a javascript alert box from codebehind in asp.net(vb).

The code:

            Catch ex As Exception
                MesgBox(\"Error in up         


        

Answer 1

Add Imports System.Web.Script.Serialization to the top of your file, then try this:

Private Sub MesgBox(ByVal sMessage As String)
    Dim serializer as New JavaScriptSerializer()
    Dim msgedtble As String = serializer.Serialize(sMessage)
    Page.ClientScript.RegisterStartupScript(Me.GetType, "myScripts",
        "")
End Sub

Using JavaScriptSerializer should take care of the linebreaks, single quotes, and everything else we haven't already thought of.