WindowsFormsHost中的窗体图表不接收鼠标滚轮？

i have a Forms.DataVisualization.Charting.Chart in a WindowsFormsHost. I can't get the chart to receive mouse wheel events. Clicks are working, if i try with a Forms.TextBox the mouse wheel is working, too. The mouse wheel is also working if i use the chart in a "native" forms app.i have a Forms.DataVisualization.Charting.Chart