Constant Line equivalent in 7.0

[burjanroppa]

How do I draw a horizontal Constant line using ChartFX 7.0 and VS 2008?

thanks

Ram

[Frank]

You need to create a custom gridline on the main Y axis:

chart.AxisY.CustomGridlines.Add(new CustomGridLine(value));

[burjanroppa]

Frank, thanks for the reply. I tried your solution, there are no errors, but the line is not visible

Here is my code

With chartCDMIVolume

.DataSourceSettings.DataSource = dt

.AxisY.Title.Text =

"CDMI Percent"

.AxisY.DataFormat.Format = ChartFX.WebForms.AxisFormat.Percentage

.AxisY.LabelsFormat.Format = ChartFX.WebForms.AxisFormat.Percentage

.AxisX.Title.Text =

"Process Date"

.AxisX.DataFormat.Format = ChartFX.WebForms.AxisFormat.Date

 

.ToolBar.Visible =

True

.LegendBox.Visible =

FalseDim oLine As New ChartFX.WebForms.CustomGridLine

oLine.Value = (cdmi_percent / lDayCount) * 100

oLine.Text =

"Average"

oLine.Color = Drawing.Color.Red

.AxisY.CustomGridLines.Add(oLine)

End With

dt is a datatable with 2 columns. Y axis has values between 0 and 7 percent and X axis displays date values.

The Average I am computing comes to 3.50 percent and I need a horizontal line plotted at this value.

Any help is appreciated.

Thanks

 

 

[Frank]

Make sure the scales match. Percentage means values from 0 to 1, so if you want to plot 3.5% that would be a value of .035