VB:Bingo Game help please-[RESOLVED]

Hello, im making a Bingo game but when it runs, it comes up with this part of the code highlighted:

VB Code:

BingoCard.MdiParent = Me

i dont know whats wrong with it. can someone please help.

Thanks

VB Code:

[B][U]Set[/U][/B] BingoCard.MdiParent = Me

still wont work, i click on player 1 and it brings up this:

An unhandled exception of type 'System.ArgumentException' occurred in system.windows.forms.dll

Additional information: The form that was specified to be the MdiParent for this form is not an MdiContainer.

Heres somemore code:

VB Code:

Private Sub mnuPlayer1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles mnuPlayer1.Click
Dim BingoCard As New BingoCard
        BingoCard.MdiParent = Me
        Static intCardNum As Integer
        intCardNum = intCardNum + 1
        BingoCard.Text = "Player 1 Card " & intCardNum
        Call GenerateBingoCard(BingoCard)
 
        BingoCard.Show()
    End Sub

oooo i got it to work, the mdicontainer was set to false. Thanks for the help :bigyello: