Contact US

Log In

Come Join Us!

Are you a
Computer / IT professional?
Join Tek-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Tek-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Problem with WaitForString in VB.NET

Problem with WaitForString in VB.NET

Problem with WaitForString in VB.NET

Hi All,

I have a program that works fine in VB 6.0 using Attachmate KEA. I am now trying to convert it to VB.NET and to work with Attachmate EXTRA.

Here is the code for the waitforstring function (not in its entirety):

VB 6.0 Version

    Set Sess = sessns.Item(scrnLocation)
    Set Screen_Object = Sess.Screen
    Set waitforstringobject = Screen_Object.WaitForString("Please Enter:")
    Do While waitforstringobject <> "Please Enter:"

VB.NET Version

        extraSess = extraSessns.Item(scrnLocation)
        extraScreen = extraSess.Screen
        waitforstringobject = extraScreen.WaitForString("Please Enter:")
        Do While waitforstringobject Is Nothing

Yes, I have created an EXTRA object.

The problem is that I am getting this error when it gets to the waitforstring command:

An unhandled exception of type 'System.InvalidCastException' occurred in Project1.exe
Additional information: Specified cast is not valid.

Also, I can't seem to get WaitForString to actually wait unless i put in a loop after it (as above). Anyone else curious about this?

The VB 6.0 code works fine. Any ideas?


Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Tek-Tips Forums free from inappropriate posts.
The Tek-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Tek-Tips forums is a member-only feature.

Click Here to join Tek-Tips and talk with other members! Already a Member? Login

Close Box

Join Tek-Tips® Today!

Join your peers on the Internet's largest technical computer professional community.
It's easy to join and it's free.

Here's Why Members Love Tek-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close