I am trying to validate a textbox and this seems to be extremely difficult in VB.NET. Basically, I have the following:

    Private Sub EncryptionKey_Validating(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles EncryptionKey.Validating
        If EncryptionKey.TextLength < 8 Then
            MessageBox.Show("The length of the encryption key should be at least 8 characters", _
             "Mitchell CCS Monitor", MessageBoxButtons.OK, MessageBoxIcon.Exclamation)
        End If
    End Sub

But, this gives the error:

Method 'EncryptionKey_Validating' cannot handle Event 'Validating' because they do not have the same signature.