Change MarkerImage Upon Mouse Hover On DataPoint and ChangeBack to when Leaving Datapoint

Question

I m trying to change the marker image of plotted data points when a user hovers on a datapoint. The code i shown below:

The data point has been changing image when hovered on it but didn't change it back to "Red.png"?

Could anyone figure out why this is not happening?

Thanks.

 Private Sub Chart1_MouseMove(ByVal sender As Object, ByVal e As MouseEventArgs) Handles Chart1.MouseMove
    Dim result As HitTestResult = Chart1.HitTest(e.X, e.Y)

    If result.ChartElementType = ChartElementType.DataPoint Then
        Chart1.Series(0).Points(result.PointIndex).MarkerImage = "Green.png"

    ElseIf result.ChartElementType = ChartElementType.PlottingArea Then
        Chart1.Series(0).MarkerImage = "Red.png"

    End If

End Sub

Answer 1

I figureed out that: Changing these lines

ElseIf result.ChartElementType = ChartElementType.PlottingArea Then
        Chart1.Series(0).MarkerImage = "Red.png"

To

ElseIf result.ChartElementType = ChartElementType.PlottingArea Then
            For i = 0 To Chart1.Series(0).Points.Count - 1
                Chart1.Series(0).Points(i).MarkerImage = "Red.png"
            Next

Worked...