Problem ze zmodyfikowanym checkboxem..

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2 total messages Started by Grzegorz Piziak Mon, 03 Dec 2012 22:14

#104933

Author: Grzegorz Piziak
Date: Mon, 03 Dec 2012 22:14

34 lines
2068 bytes

Witam,
dlaczego w poniższym otrzymuję błąd:

System.InvalidCastException: Nie można rzutować obiektu typu 'System.Windows.Forms.CheckBox' na typ 'statmbp.checkboxyn'.

W kodzie designera zmieniam tą linijkę:
Friend WithEvents CheckBox1 As System.Windows.Forms.CheckBox
na
Friend WithEvents CheckBox1 As CheckboxYN

W momencie startu programu otrzymuję powyższy błąd.

Public Class CheckboxYN
    Inherits System.Windows.Forms.CheckBox
    Public Property YesNo As String
        Get
            If Me.checked Then
                Return "Y"
            Else
                Return "N"
            End If
        End Get
        Set(value As String)
            If Me.Checked Then
                Me.Checked = True
            Else
                Me.Checked = False
            End If
        End Set
    End Property
End Class

Pozdrawiam,
Grzegorz.

Re: Problem ze zmodyfikowanym checkboxem..

#104934

Author: Grzegorz Piziak
Date: Mon, 03 Dec 2012 22:22

5 lines
1238 bytes

Bo trzeba jeszcze to zmienić:

Me.CheckBox1 = New System.Windows.Forms.CheckBox()

Dobranoc...

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