顯示光標及其在光標懸停在MS折線圖上的值

Question

我正在使用Microsoft線形圖（版本3.5）。現在，當用戶將鼠標懸停在折線圖上時，我想要顯示點光標及其值。

即檢查此鏈接並點擊線條系列。
http://www.jqwidgets.com/jquery-widgets-demo/demos/jqxchart/index.htm#demos/jqxchart/javascript_chart_line_series.htm

Answer 1

糾正我，如果我錯了，但我猜你正在使用微軟圖表控件.Net框架，這不是你的問題很清楚。

無論如何，您可以使用工具提示來顯示鼠標懸停點的數值。
Chart1.Series("Series1").ToolTip = "#VALX - #VALY"
這將在您懸停的點的工具提示中顯示X值和Y值。

代碼示例（視覺鹼性）：

' Creating the series 
Dim series1 As New Series("Series1") 

' Setting the Chart Type 
series1.ChartType = SeriesChartType.Line 

' Adding some points 
series1.Points.AddXY(0, 10) 
series1.Points.AddXY(1, 15) 
series1.Points.AddXY(2, 13) 
series1.Points.AddXY(3, 21) 
series1.Points.AddXY(4, 9) 
series1.Points.AddXY(5, 17) 

' Add the series to the chart 
Chart1.Series.Add(series1) 

' Set the chart's height and width 
Chart1.Width = 600 
Chart1.Height = 600 

' Set the chart's visuals 
series1.Color = Drawing.Color.Red 
series1.IsXValueIndexed = True 

' Setting the X Axis 
Chart1.ChartAreas("ChartArea1").AxisX.IsMarginVisible = True 
Chart1.ChartAreas("ChartArea1").AxisX.Interval = 1 
Chart1.ChartAreas("ChartArea1").AxisX.Maximum = [Double].NaN 
Chart1.ChartAreas("ChartArea1").AxisX.Title = "x" 
Chart1.ChartAreas("ChartArea1").AxisX.TitleFont = New Font("Sans Serif", 10, FontStyle.Bold) 

' Setting the Y Axis 
Chart1.ChartAreas("ChartArea1").AxisY.Interval = 2 
Chart1.ChartAreas("ChartArea1").AxisY.Maximum = [Double].NaN 
Chart1.ChartAreas("ChartArea1").AxisY.Title = "y" 
Chart1.ChartAreas("ChartArea1").AxisY.TitleFont = New Font("Sans Serif", 10, FontStyle.Bold) 

' Setting the mouse hover (tooltip) 
series1.ToolTip = "#VALX - #VALY"