Javascript Message Box in ASP.NET webapp

Question

I am using the code below to handle some exceptions in the webapp I'm building:

            Dim msg As String
            Dim SF_msg As String = "Please input lower bounds in SF Parameter Section"
            msg = "<script language = 'javascript'>"
            msg += "alert('" & SF_msg & "');"
            msg += "<" & "/script>"
            HttpContext.Current.Response.Write(msg)

The output of the code is a messagebox that apparently temporarily hides the page in order to show the message.

enter image description here

What I would like however is a javascript message box that stays on the page without hiding it. Something like the "confirm navigation" message in most webapps:

enter image description here

Please advise. Thanks in advance.

is this a classic asp ?

Ali
– Ali

2014-06-10 03:51:17 +00:00
Commented Jun 10, 2014 at 3:51 — Ali
– Ali, Commented Jun 10, 2014 at 3:51
this is .NET Framework 3.5

lulutanseco
– lulutanseco

2014-06-10 03:54:32 +00:00
Commented Jun 10, 2014 at 3:54 — lulutanseco
– lulutanseco, Commented Jun 10, 2014 at 3:54
just check the answer below

Ali
– Ali

2014-06-10 03:55:24 +00:00
Commented Jun 10, 2014 at 3:55 — Ali
– Ali, Commented Jun 10, 2014 at 3:55

Ali · Accepted Answer · 2014-06-10 03:54:50Z

2

use this one instead: (needs to be converted to VB)

 ScriptManager.RegisterStartupScript(this, this.GetType(), "confirm", 
        "confirm('Please input lower bounds in SF Parameter Section');", true);

answered Jun 10, 2014 at 3:54

Ali

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