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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Jeff,</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I would not know any examples of using the
DataGridView in Python.</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>But I did use many other view classes in
IronPython, since I’ve been working on a GUI framework in IP.</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>What I used as doc was: .NET SDK 2.0 documentation
and Python 2.4 Manuals.</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>For me that worked fine.</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>There’s remarkably little difference
between using them from C# and from IP, even at dealing with event handlers, properties
and .NET datastructures.</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Since there probably aren’t too many
examples around yet, here’s a fragment of code to illustrate this:</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in'><font size=2
color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>-<font size=1 face="Times New Roman"><span style='font:7.0pt "Times New Roman"'>
</span></font></span></font><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>Instantiate a TreeView</span></font></p>
<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in'><font size=2
color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>-<font size=1 face="Times New Roman"><span style='font:7.0pt "Times New Roman"'>
</span></font></span></font><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>Add an event handler to its
MouseUp event to show a ContextMenuStrip that was built up by a widget creation
function defined elsewhere</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=1 face="Courier New"><span
style='font-size:9.0pt;font-family:"Courier New"'>from sys import *</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=1 face="Courier New"><span
style='font-size:9.0pt;font-family:"Courier New"'>LoadAssemblyByName("System.Windows.Forms")</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=1 face="Courier New"><span
style='font-size:9.0pt;font-family:"Courier New"'>from System.Windows import
Forms</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=1 face="Courier New"><span
style='font-size:9.0pt;font-family:"Courier New"'>…</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=1 face="Courier New"><span
style='font-size:9.0pt;font-family:"Courier New"'>class …: </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=1 face="Courier New"><span
style='font-size:9.0pt;font-family:"Courier New"'> def
createWidget (self):</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=1 face="Courier New"><span
style='font-size:9.0pt;font-family:"Courier New"'> …</span></font></p>
<p class=MsoNormal style='margin-left:1.0in;text-autospace:none'><font size=1
face="Courier New"><span style='font-size:9.0pt;font-family:"Courier New"'>self.widget
= Forms.TreeView () # Instantiate .NET class</span></font></p>
<p class=MsoNormal style='margin-left:1.0in;text-autospace:none'><font size=1
face="Courier New"><span style='font-size:9.0pt;font-family:"Courier New"'>self.widget.Dock
= Forms.DockStyle.Fill # Set properties, just like you would in C#</span></font></p>
<p class=MsoNormal style='margin-left:1.0in;text-autospace:none'><font size=1
face="Courier New"><span style='font-size:9.0pt;font-family:"Courier New"'>self.widget.HideSelection
= False # Same</span></font></p>
<p class=MsoNormal style='margin-left:1.0in;text-autospace:none'><font size=1
face="Courier New"><span style='font-size:9.0pt;font-family:"Courier New"'>self.widget.AllowDrop
= True # Same</span></font></p>
<p class=MsoNormal style='margin-left:.5in;text-indent:.5in'><font size=2
color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>…</span></font></p>
<p class=MsoNormal style='margin-left:.5in;text-indent:.5in;text-autospace:
none'><font size=1 face="Courier New"><span style='font-size:9.0pt;font-family:
"Courier New"'>if self.contextMenuView:</span></font></p>
<p class=MsoNormal style='margin-left:1.0in;text-indent:.5in;text-autospace:
none'><font size=1 face="Courier New"><span style='font-size:9.0pt;font-family:
"Courier New"'>self.widget.ContextMenuStrip = self.contextMenuView.createWidget
() # Get populated context menu strip</span></font></p>
<p class=MsoNormal style='margin-left:.5in;text-autospace:none'><font size=1
face="Courier New"><span style='font-size:9.0pt;font-family:"Courier New"'> self.widget.MouseUp
+= lambda sender, event: event.Button != Forms.MouseButtons.Right or
sender.ContextMenuStrip.Show (sender, event.Location) #
Add event handler to show context menu at mouse up</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=1 face="Courier New"><span
style='font-size:9.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>.NET datastructures can usually be betraversed
with Python iterators without any special tricks:</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=1 face="Courier New"><span
style='font-size:9.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=1 face="Courier New"><span
style='font-size:9.0pt;font-family:"Courier New"'> def
bareWrite (self):</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=1 face="Courier New"><span
style='font-size:9.0pt;font-family:"Courier New"'> expansionDictionary
= {}</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=1 face="Courier New"><span
style='font-size:9.0pt;font-family:"Courier New"'> self.fillExpansionDictionary
(self.widget.Nodes, (), expansionDictionary) # Will traverse Nodes, see
function def below</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=1 face="Courier New"><span
style='font-size:9.0pt;font-family:"Courier New"'> self.widget.Nodes.Clear
() # Call member, just like you would in C#</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=1 face="Courier New"><span
style='font-size:9.0pt;font-family:"Courier New"'> self.writeTree
(self.treeNode.new, self.widget.Nodes, (), expansionDictionary) # Pass Forms.TreeView.Nodes
property as param, just like in C#</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=1 face="Courier New"><span
style='font-size:9.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=1 face="Courier New"><span
style='font-size:9.0pt;font-family:"Courier New"'> def
fillExpansionDictionary (self, treeViewNodes, hashPath, expansionDictionary):</span></font></p>
<pre><font size=1 face="Courier New"><span style='font-size:9.0pt'> for treeViewNode in treeViewNodes: # Treat treeViewNodes as an ordinary Python iterable datastructure, even though it is a reference to Forms.TreeView.Nodes, an instance of </span></font><span
class=keyword>public</span> <span class=keyword>class</span> <span
class=identifier>TreeNodeCollection</span>: <mshelp:link tabIndex="0" keywords="T:System.Collections.IList">IList</mshelp:link>, <u1:link tabIndex="0" keywords="T:System.Collections.ICollection">ICollection</u1:link>, <u2:link tabIndex="0" keywords="T:System.Collections.IEnumerable">IEnumerable</u2:link></pre>
<p class=MsoNormal style='text-autospace:none'><font size=1 face="Courier New"><span
style='font-size:9.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=1 face="Courier New"><span
style='font-size:9.0pt;font-family:"Courier New"'> if
self.transformer:</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=1 face="Courier New"><span
style='font-size:9.0pt;font-family:"Courier New"'> newHashPath
= hashPath + (treeViewNode.Tag, ) # Use .NET properties just as you
would in C#</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=1 face="Courier New"><span
style='font-size:9.0pt;font-family:"Courier New"'> else:</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=1 face="Courier New"><span
style='font-size:9.0pt;font-family:"Courier New"'> newHashPath
= hashPath + (treeViewNode.Text, </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=1 face="Courier New"><span
style='font-size:9.0pt;font-family:"Courier New"'> expansionDictionary
[newHashPath] = treeViewNode.IsExpanded # Yet another property</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=1 face="Courier New"><span
style='font-size:9.0pt;font-family:"Courier New"'> self.fillExpansionDictionary
(treeViewNode.Nodes, newHashPath, expansionDictionary)</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=navy
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Probably you just should start
experimenting.</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>What helped me tremendously is the
fact that IP is interpreted, rather than compiled.</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I can experiment in seconds, even from the
command line, although I prefer assembling small code fragments in an editor to
try out stuff.</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Currently I am using IP 0.9.5 as
interpreter, running IP 0.9.6 beforehand as a syntax checker, since that
version has improved error reporting but some run time issues.</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>(for wich a fix is already on this mailing
list (thanks Dino) but I haven’t yet found the time to try this out)</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Hope this helps</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Jacques de Hooge</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>info@geatec.com</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=1 face="Courier New"><span
style='font-size:9.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=1 face="Courier New"><span
style='font-size:9.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=1 face="Courier New"><span
style='font-size:9.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Tahoma><span
lang=NL style='font-size:10.0pt;font-family:Tahoma'>-----Oorspronkelijk
bericht-----<br>
<b><span style='font-weight:bold'>Van:</span></b>
users-bounces@lists.ironpython.com [mailto:users-bounces@lists.ironpython.com] <b><span
style='font-weight:bold'>Namens </span></b>jeff sacksteder<br>
<b><span style='font-weight:bold'>Verzonden:</span></b> Thursday, December 22,
2005 4:14 PM<br>
<b><span style='font-weight:bold'>Aan:</span></b> s.kobalczyk@softwaremind.pl; </span></font><font
size=2 face=Tahoma><span lang=NL style='font-size:10.0pt;font-family:Tahoma'>Discussion
of IronPython</span></font><font size=2 face=Tahoma><span lang=NL
style='font-size:10.0pt;font-family:Tahoma'><br>
<b><span style='font-weight:bold'>Onderwerp:</span></b> Re: [IronPython]
DataGridView</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
lang=NL style='font-size:12.0pt'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>I'm sorry, I meant in Python. </span></font></p>
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