Handler on RapidData for GTPUMessageBox

RouxAxium

Hi,

I want to show a gtpumessagebox when the value of variable x = true. So I:

AddHandler bToHMI_StckDrpped.ValueChanged, AddressOf ShowMsgStackDrpped

    Sub ShowMsgStackDrpped(ByVal sender As Object, ByVal e As DataValueChangedEventArgs)

        If bToHMI_StckDrpped.Value.ToString = RTrue.Value.ToString Then

            MsgStackDrpped()

        End If

    End Sub

    Sub MsgStackDrpped()

        Dim Title As String = "Stack Dropped : Robot Requesting Action"

        Dim Message As String = "Please Select between 'RETRY' if you want to Continue Movement (False Drop information) OR 'CANCEL' if you want To Do the next scheduled Robot Task."

        Dim response As MsgBoxResult

        Dim rNum As RapidDomain.Num

        rNum.FillFromNum(2)

        response = MsgBox(Message, MsgBoxStyle.RetryCancel, Title)

        'GTPUMessageBox.Show(Me, Nothing, Message, Title, _

        '     System.Windows.Forms.MessageBoxIcon.Hand, System.Windows.Forms.MessageBoxButtons.RetryCancel)

        If response = MsgBoxResult.Retry Then

            rNum.FillFromNum(2)

            nFrmHMI_StckDrppedAnswr.Value = rNum

        Else

            rNum.FillFromNum(1)

            nFrmHMI_StckDrppedAnswr.Value = rNum

        End If

    End Sub

    Private Sub StckDrppedRC(ByVal sender As System.Object, ByVal Answer As MessageBoxEventArgs)

        If Answer.DialogResult = Windows.Forms.DialogResult.Retry Then

            rNum.FillFromNum(2)

            nFrmHMI_StckDrppedAnswr.Value = rNum

        Else

            rNum.FillFromNum(1)

            nFrmHMI_StckDrppedAnswr.Value = rNum

        End If

    End Sub

 receive a message error like a thread cannot be the parents of another threads.  So with the VC i tried with a standard msgbox and it works well.  So if its not possible to use a msgbox I will like to know how i can do to show a GTPUMessageBox just when a Rapiddata = TRUE?

Best Regards,

Martin

carlosmtz2000

Hi Martin,

 

The method ShowMsgStackDrpped is not executed by the UI thread. In order to make a change in the UI (in your case, a GTPUMessageBox), your code must be executed by the UI thread.

 

You need to Invoke the UI thread in any control.

 

Ex. C# .... this.Invoke( ....) <-- where "this" refers to the TpsForm

 

BR