ChangedByUser event

[User (Legacy)]

I have 4 charts on a form displaying data. There are the same number of 

series at any given time on each of the 4 charts. Here's what I want to do: 

when the user changes properties for, say, series 0 of chart2, I want to 

make that same change to each of the other 4 charts. I was thinking of using 

the Export functionality as a way to "copy" certain attributes (which I'll 

set using a FileMask before-hand) into the other charts.

The problem is that none of the events I can find to hook into 

(AttributeChanging, ChangedByUser) really fire appropriately. Is there a way 

to do this that I haven't found yet?

Also, as a side note, I'm saving off these settings (which should be 

universal for all four charts) to a file and reloading them when they reload 

the app.

Thanks,

--Shaun

[User (Legacy)]

Any thoughts on this? I tried searching for more info, but I couldn't find 

anyone wanting to do exactly this...

Thanks again for any help!

"Shaun Davidson" <shaund@csgpro.com> wrote in message 

news:W1v663RKGHA.2568@webserver3.softwarefx.com...

>I have 4 charts on a form displaying data. There are the same number of 

>series at any given time on each of the 4 charts. Here's what I want to do: 

>when the user changes properties for, say, series 0 of chart2, I want to 

>make that same change to each of the other 4 charts. I was thinking of 

>using the Export functionality as a way to "copy" certain attributes (which 

>I'll set using a FileMask before-hand) into the other charts.

>

> The problem is that none of the events I can find to hook into 

> (AttributeChanging, ChangedByUser) really fire appropriately. Is there a 

> way to do this that I haven't found yet?

>

> Also, as a side note, I'm saving off these settings (which should be 

> universal for all four charts) to a file and reloading them when they 

> reload the app.

>

> Thanks,

>

> --Shaun

>

[User (Legacy)]

Here's an update on where I'm at:

I decided to use the InternalCommand event. Since this command is a "this 

attribute is changing" event instead of a "this attribute has been changed" 

type of event (at least, it seems to be working this way for line color and 

thickness), I just start a time and "wait" for the changes to be applied to 

the properties. My code for this looks something like:

Private Sub Chart1_InternalCommand(ByVal sender As Object, ByVal e As 

CommandUIEventArgs) Handles Chart1.InternalCommand

    Timer1.Start()

End Sub

Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As 

System.EventArgs) Handles Timer1.Tick

    Dim stream As IO.Stream = New IO.MemoryStream

    Chart1.Export(FileFormat.Binary, stream)

    stream.Position = 0

    Chart2.Import(FileFormat.Binary, stream)

    Timer1.Stop()

End Sub

Then, in the code that runs when the form unloads, I check to see if the 

Chart1.Dirty flag is set. If it is, I stuff the Binary data into an image 

column in the database.

Do you see any problems with this approach?

--Shaun

[Software FX]

Looks fine to me. As long as you set FileMask appropriately to for example 

not include Data.

-- 

Francisco Padron

www.chartfx.com