Error while showing a modal dialog box or form

Question

I am checking emailId exists in DB, If Exists I am looking to create a Ok/Cancel confirmation dialog. if user say "Ok" I am redirecting to some other form.

My code is :

If emailId = True Then
    If MsgBox("Your email address exists in our database. Click OK to update your   Details.", MsgBoxStyle.Information + MsgBoxStyle.OkCancel, Title:="NJ Golf Resort") = MsgBoxResult.Ok Then
        Response.Redirect("~/articles.asp?a=" & a & "&b=" & b )
    End If
End If

for above code i m getting error :

Showing a modal dialog box or form when the application is not running in UserInteractive mode is not a valid operation. Specify the ServiceNotification or DefaultDesktopOnly style to display a notification from a service application

Answer 1

I think this is a website code in ASP.Net, and what you are trying to do is display msgbox on server, this can not be done as the user is interacting with the web browser on client side, you may better use javascript to dispaly msgbox

Cheers.

Answer 2

Simply put, you shouldn't be using System.Windows.Forms.Messagebox in an ASP.NET application, because message boxes will only work properly for Windows Forms applications.

Answer 3

function redirect(a,b){
      if(confirm('Your email id is in DB')){
          window.location.href='/articles.asp?a='+a+'&b='+b;
       }
}

In serverside call the above client side function as

If emailId = True Then
        this.Page.ClientScript.RegisterStartupScript(this.GetType(), "EmailID", String.Format("redirect({0},{1});", aValue, bValue), true);

    /*For Asp.net AJAX use the following code*/
    ScriptManager.RegisterStartupScript(this.GetType(), "EmailID", String.Format("redirect({0},{1});", aValue, bValue), true);

End If

Note:I have given the C# code.Translate to VB.