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<p class=MsoNormal><span style='color:#1F497D'>What I am trying to do is run a
user script over and over. Each time it runs there will be different data
in the object model that they access to compute there values and such.
The trick is they need to be able to access values from prior runs. So the
way I have addressed this is they create a c# class called DataSeries, I
maintain state on it behind the scenes as to what run they are on, then they
can use an indexer on it to get prior values. so<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>x = DataSeries()<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>do some calculations<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>x.set(somevalue)<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>// then on the next run of the
script they can<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>y = x[1] // which
gives them access to the value of x from the prior scope run.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>accessing prior values is required
for what the user is doing and while there are many ways to code it, keeping it
very simple for the users is a priority. Hope that helps<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
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<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
users-bounces@lists.ironpython.com [mailto:users-bounces@lists.ironpython.com] <b>On
Behalf Of </b>Jimmy Schementi<br>
<b>Sent:</b> Monday, March 02, 2009 3:10 PM<br>
<b>To:</b> Discussion of IronPython<br>
<b>Subject:</b> Re: [IronPython] CustomSymbolDictionary question<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='color:#1F497D'>So, if I understand this right,
you have user code, which you need to run each time first ... and then your
code which you want to run once after. Something like:<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>// when your app starts, or
something, compile your code, but don't run yet<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>var compiledCode =
engine.CreateScriptSourceFromString(code).Compile();<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>// do other stuff ....<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>// execute user code<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>var userScope =
engine.ExecuteFile("usercode.py");<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>// run your code in the user's
code's scope<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>compiledCode.Execute(userScope);<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
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<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
users-bounces@lists.ironpython.com [mailto:users-bounces@lists.ironpython.com] <b>On
Behalf Of </b>R. Bear Smith<br>
<b>Sent:</b> Monday, March 02, 2009 11:54 AM<br>
<b>To:</b> users@lists.ironpython.com<br>
<b>Subject:</b> [IronPython] CustomSymbolDictionary question<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Hi all,<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I have a situation where I need to run a script many times
with a different scope each time. I want to be able to substitute an
instance of a class each time it is asked for. For example,<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>x = MyCSharpClass()<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Using CustomSymbolDictionary I am able to store the class
created on the first call and then substitute it for every additional call to x
from different scopes. While this works to provide the same class
instance to every scope, a new class is being created on every call and
replaced with the original class. Is there a way to only create the class
once. The script will be user code so I have no prior knowledge of
variable names and such. Any ideas would be appreciated.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Thanks<o:p></o:p></p>
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