Dim Chart As WinForm.Chart '定义一个图表变量
Dim Series As WinForm.ChartSeries '定义一个图系变量
Dim tbl As DataTable = DataTables("出库") '定义一个变量tbl引用数据表
Dim lst As List(Of String) = tbl.GetValues("出库日期> = " & Date.Now().Year & "-01-01" & "And < = " & Date.Now() & " ") '获得日期名称集合
Chart = e.Form.Controls("Chart2") ' 引用窗口中的图表
Chart.SeriesList.Clear() '清除图表原来的图系
Series = Chart.SeriesList.Add() '增加一个图系
Series.Length = lst.Count '设置图系的长度
For i As Integer = 0 To lst.Count - 1 '指定每个数据点的位置
Series.X(i) = i '指定水平坐标
Series.Y(i) = tbl.Compute("Sum(金额)","[出库日期] = '" & lst(i) & " ' ") '指定垂直坐标
Chart.AxisX.DateType = True 'X轴是日期型
Chart.AxisX.SetValueLabel(i, Month(lst(i))) '指定字符表示
Next
Chart.AxisX.AnnoWithLabels = True '启用字符标示
Chart.SeriesList(0).LineColor= Color.Red
Series.MarkColor = Color.Green
请帮我改下粗体字部分,按当年改,谢谢