"Remembering" Statistical Study Settings...

[FP2006]

 

We have charts were users can optional show and configure the stat extension.  We allow users to save their settings (both core ChartFx object and Stat Settings) and reuse them as the data from our application is refreshed.  We implement this with the FileContents with both the Extensions and Reuse Extensions settings turned on.

 When we do this all of the chart settings (colors, fonts, etc.) are remembered when we reload the XML files. However, the Statistical Study settings are cleared.

So if I have a bar chart where the user has turned on the "mean", the next time the data is refreshed, the system respects all of the customizations made to the chart by the user except for the fact that the "mean" should be displayed.

 The following code is what is being used for the FileContents setting...

Me.FileContents = ChartFX.WinForms.FileContents.All

Me.FileContents = ChartFX.WinForms.FileContents.General Or ChartFX.WinForms.FileContents.Fonts Or ChartFX.WinForms.FileContents.Scale Or ChartFX.WinForms.FileContents.ColorsAndStyles Or ChartFX.WinForms.FileContents.SeriesAttributes Or ChartFX.WinForms.FileContents.PerPointAttributes Or ChartFX.WinForms.FileContents.DockableBars Or ChartFX.WinForms.FileContents.Extensions Or ChartFX.WinForms.FileContents.Pictures Or ChartFX.WinForms.FileContents.AxisSections Or ChartFX.WinForms.FileContents.CustomGridlines Or ChartFX.WinForms.FileContents.ReuseExtensions

 Any thoughts?  Thanks for the help.

[FP2006]

Let me know if this question needs to be reworded to help clarify. Thanks.

[Frank]

We are unable to reproduce this problem.

I tried creating a chart, added some studies, then saved the chart into an XML. Later, I imported the XML into a brand new chart and all the studies were there.

Please post a sample application that reproduces the problem.

[FP2006]

 I think the issue appears when you import the XML settings into a chart that already has a statistical extension turned on.  It looks like you imported to a completely new chart.

Below are the code snippets we are using...

 

 

Public Sub SaveLayout(ByRef PropertyBag As String, ByVal View As Integer) Implements Framework.Reporting.IDisplayObject.SaveLayout

 
Dim DisplayPropertyBag As
Utilities.XMLSettings

 
Dim Settings As
String

 

 
'Lets initialize the property bag

 
DisplayPropertyBag = New Utilities.XMLSettings("Display", PropertyBag)

 

 
Settings = Me.GetUserSettings

 
DisplayPropertyBag.WriteSettings("ChartLayout",
Me.Name & "-("
& View.ToString & ")",
Settings, GetType(System.String))

 

 
PropertyBag = DisplayPropertyBag.XML

 End Sub

 

 

 Public Function GetUserSettings() As
String

 
Dim MS As
System.IO.MemoryStream

 
Dim MSR As
System.IO.StreamReader

 

 

 
Try

 
MS = New System.IO.MemoryStream

 

 
Me.FileContents =
ChartFX.WinForms.FileContents.All

 

 
Me.FileContents =
ChartFX.WinForms.FileContents.General Or
ChartFX.WinForms.FileContents.Fonts Or
ChartFX.WinForms.FileContents.Scale Or
ChartFX.WinForms.FileContents.ColorsAndStyles Or
ChartFX.WinForms.FileContents.SeriesAttributes Or
ChartFX.WinForms.FileContents.PerPointAttributes Or
ChartFX.WinForms.FileContents.DockableBars Or
ChartFX.WinForms.FileContents.Extensions Or
ChartFX.WinForms.FileContents.Pictures Or
ChartFX.WinForms.FileContents.AxisSections Or
ChartFX.WinForms.FileContents.CustomGridlines Or
ChartFX.WinForms.FileContents.ReuseExtensions

 

 Me.Export(FileFormat.Xml,
MS)

 

 
MSR = New System.IO.StreamReader(MS)

 
MS.Position = 0

 
Return MSR.ReadToEnd

 
Catch ex As
System.Exception

 
Return ""

 
End Try

 

End Function

 

 

 

Public Sub SetUserSettings(ByVal
Settings As String)

 
Dim MS As
System.IO.MemoryStream

 
Dim MSW As System.IO.StreamWriter

 

 
MS = New System.IO.MemoryStream

 
MSW = New System.IO.StreamWriter(MS)

 

 
MSW.Write(Settings)

 
MSW.Flush()

 
MS.Position = 0

 

 
Dim MSR As
System.IO.StreamReader

 
MSR = New System.IO.StreamReader(MS)

 
MS.Position = 0

 

 
Me.Import(FileFormat.Xml, MS)

 

 
Me.RecalculateScale()

End Sub

 

 

  Public Sub
ApplySavedChartLayout(ByVal PropertyBag As String, ByVal View As Integer) Implements
Framework.Reporting.IDisplayObject.ApplySavedChartLayout

 
Dim DisplayPropertyBag As
Utilities.XMLSettings

 
Dim Settings As
String

 

 
'Lets initialize the property bag

 
DisplayPropertyBag = New Utilities.XMLSettings("Display", PropertyBag)

 

 
Settings = DisplayPropertyBag.GetSettings("ChartLayout",
Me.Name & "-("
& View.ToString & ")", "", GetType(System.String))

 
If Settings <> ""
Then Me.SetUserSettings(Settings)

 
End Sub

 

[FP2006]

 I saw this response in the "extensions" forum.  Is it related?

 

Adding the .clear did not fix the issue for us, so I am wondering if it is something in the code snipets we sent that we are doing wrong.

 

thanks for the help! 

 ---------------------------------------------------------------------------------------

There'sseems to be a problem importing a financial or statistical chart to achart that has one of these extensions already added. Please call theClear() method of the Extensions object before calling the Import()method. You can do as follows:

 chart1.Extensions.Clear();

chart1.Import(FileFormat.Binary, "D:\\Temp\\StatisticalExport.bin");

 

[FP2006]

Have you had an opportunity to look into this?

 

Thanks in advance.

[FP2006]

Should I be opening a support ticket on this issue or is the forum the right way to go?

Thanks again for the help.