AxisY.ScaleUnit problem

[sain]

Hi All,

For the following code, when I apply axisY.ScaleUnit=100 then I 'm loosing all my axisY labels and  gridlines. Any idea?

Chrt.AxisY.LabelsFormat.CustomFormat = "00.0%"

Chrt.AxisY.DataFormat.Decimals = 1

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

 

 

[rogelioB]

Hi,

It seems you trying to do a percentage Y-Axis, so please use the following lines of code in order to accomplish this behavior:

chart1.AxisY.ScaleUnit = 100;

chart1.AxisY.LabelsFormat.Decimals = 1;

chart1.AxisY.Step = 10;

chart1.AxisY.LabelsFormat.CustomFormat = "00.0%";

Regards RB

[sain]

Thanks for your reply. If I assign the Step=10 then it works fine for me. But, in my application I'm setting AxisY min and max values programatically. Some times the AxisY min value is 0 and Max value 1, in this case I don't see Labels on axisY except Zero. My question is can we able to get % and one decimal on AxisY labels without setting Step value?

Thanks in advance. 

 

 

 

[rogelioB]

 If you do not set the step, Chart FX will calculate it according to your data; if you want to have a specific steps and labels like %, I recommend you to set a step.

WPFchartTest1.zip

[sain]

If I assign the step value some times the graphs are looks crazy. In my app there are 100 graphs and data is coming from different sources. I'm calculating Step value as shown below, my users are not satisfied the way graph looks.

Public Shared Sub Chart_CommonProperties(ByRef Chrt As ChartFX.WebForms.Chart, ByVal maxValue As Double, ByVal minValue As Double)

Chrt.AxisY.LabelsFormat.Decimals = 1

Chrt.AxisY.LabelsFormat.CustomFormat =

"#0.0%"

Chrt.AxisY.DataFormat.Decimals = 1

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

If (maxValue > 0) Then

Chrt.AxisY.Max = maxValue * 1.5

Else

Chrt.AxisY.Max = maxValue * 1.25

End If

If (minValue > 0) Then

Chrt.AxisY.Min = minValue * 0.75

Else

Chrt.AxisY.Min = minValue * 1.25

End If

Chrt.PlotAreaColor = Drawing.Color.FromArgb(255, 255, 255)

Chrt.AxisY.Grids.Major.Visible =

True

Chrt.AxisX.Grids.Major.TickMark = ChartFX.WebForms.TickMark.Outside

Chrt.AxisX.Grids.Major.Style = Drawing2D.DashStyle.Solid

Chrt.AxisX.Grids.Major.Width = 1

Chrt.AxisX.Grids.Major.Color = Drawing.SystemColors.ControlDark

Chrt.AxisX.Grids.Major.Visible =

FalseChrt.AxisY.Grids.Major.Style = Drawing2D.DashStyle.Solid

Chrt.AxisY.LabelValue = 1

Chrt.AxisY.ScaleUnit = 100

Chrt.AxisY.Grids.Major.Color = Drawing.SystemColors.ControlDark

'Chrt.AxisY.Step = 10

If Chrt.AxisY.Max - Chrt.AxisY.Min > 0 ThenDim stepvalue As Integer = Math.Round((Chrt.AxisY.Max - Chrt.AxisY.Min))

Select Case stepvalueCase 0

Chrt.AxisY.Step = 0.1

Case 1

Chrt.AxisY.Step = 0.1

Case 2

Chrt.AxisY.Step = 0.2

Case 3

Chrt.AxisY.Step = 0.3

Case 4

Chrt.AxisY.Step = 0.4

Case 5

Chrt.AxisY.Step = 0.5

Case 6

Chrt.AxisY.Step = 0.6

Case 7

Chrt.AxisY.Step = 0.7

Case 8

Chrt.AxisY.Step = 0.8

Case 9

Chrt.AxisY.Step = 1

Case 10

Chrt.AxisY.Step = 1.5

Case Else

Chrt.AxisY.Step = DetermineNextWholeTen((Chrt.AxisY.Max - Chrt.AxisY.Min) / 10)

End Select

End If

''setting the charts varios properties like border, point label formats and graph color

Chrt.PageColor = Color.White

Chrt.AllSeries.Border.Color = Drawing.Color.Black

Chrt.AllSeries.Border.Effect = ChartFX.WebForms.BorderEffect.Dark

Chrt.AllSeries.PointLabels.Visible =

True

Chrt.AllSeries.PointLabels.Angle = ERTSCONSTANTS.CHART_VALUES.POINT_LABEL_ANGLE_360

Chrt.AllSeries.Color = Drawing.Color.Black

Chrt.AllSeries.MarkerSize = 3

Chrt.AllSeries.MarkerShape = ChartFX.WebForms.MarkerShape.Rect

Chrt.AllSeries.Line.Width = 1

End Sub

 

Private Shared Function DetermineNextWholeTen(ByVal value As Decimal) As DoubleDim x As Decimal = value / 10

Dim y As Integer

If x > 0 Then

y = Math.Ceiling(x)

Else

y = Math.Floor(x)

y = y - 1

End IfReturn y * 10

End Function

Thanks in advance.