Added the sample code from wxPython In Action to the samples dir

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@42925 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/samples/wxPIA_book/Chapter-07/combo_box.py

@@ -0,0 +1,19 @@
+import wx
+
+class ComboBoxFrame(wx.Frame):
+    def __init__(self):
+        wx.Frame.__init__(self, None, -1, 'Combo Box Example', 
+                size=(350, 300))
+        panel = wx.Panel(self, -1)
+        sampleList = ['zero', 'one', 'two', 'three', 'four', 'five',
+                      'six', 'seven', 'eight']
+        wx.StaticText(panel, -1, "Select one:", (15, 15))
+        wx.ComboBox(panel, -1, "default value", (15, 30), wx.DefaultSize,
+                    sampleList, wx.CB_DROPDOWN)
+        wx.ComboBox(panel, -1, "default value", (150, 30), wx.DefaultSize,
+                        sampleList, wx.CB_SIMPLE)
+                        
+if __name__ == '__main__':
+    app = wx.PySimpleApp()
+    ComboBoxFrame().Show()
+    app.MainLoop()