[IronPython] Issue with using multiple forms in IronPython
Leonides Saguisag
lsaguisag at vmware.com
Wed Oct 7 23:47:01 CEST 2009
Hi Michael,
Thank you for the info. Sounds like an interesting technique that I will explore in the future once I actually have a copy of IronPython in Action in my hands to help guide me.
I would also like to thank you for taking the time and effort to write the book and share your knowledge and experience with us newbies. :)
Cheers,
-- Leo
-----Original Message-----
From: users-bounces at lists.ironpython.com [mailto:users-bounces at lists.ironpython.com] On Behalf Of Michael Foord
Sent: 2009?10?7? 14:43
To: Discussion of IronPython
Subject: Re: [IronPython] Issue with using multiple forms in IronPython
Leonides Saguisag wrote:
> Hi Dino,
>
> Thanks for the awesome advice! I got it to work after I removed those pesky "class WindowsApplication" declarations.
>
> I am not all too clear on what you mean by making a base form in C# and then inheriting that. Is that discussed in the IronPython in Action book? I haven't picked up a copy of the book yet, hoping to do so within the week.
>
>
It is covered in IronPython in Action yes.
Basically use Visual Studio (Express) but generating C# instead of IronPython. Make the compiled dll part of your IronPython project, add a reference to it and import the generated Form classes. You can then subclass these from IronPython.
Michael
> XAML sounds interesting but due to time constraints I will continue to work with WinForms for the app that I am working on.
>
> Thanks for your help!
>
> Cheers,
> -- Leo
>
> -----Original Message-----
> From: users-bounces at lists.ironpython.com
> [mailto:users-bounces at lists.ironpython.com] On Behalf Of Dino Viehland
> Sent: 2009?10?7? 13:50
> To: Discussion of IronPython
> Subject: Re: [IronPython] Issue with using multiple forms in
> IronPython
>
> The problem here is really that IronPython Studio is really weird and is trying to create namespaces where none exist. So if you removed the class WindowsApplication... everywhere or if you changed the namespace names so the 2 files had distinct "namespaces" it would work. But you won't get the two separate classes to be merged into one namespace.
>
> I personally would suggest going w/ Michael Foord's recommendation of making a base winforms class in the designer w/ C# and then just inheriting from that in IronPython rather than using IronPython Studio's forms support.
>
> Alternately I think XAML is probably the future as far as IronPython IDEs go. W/ XAML none of the UI needs to be represented with code.
>
>
>
>> -----Original Message-----
>> From: users-bounces at lists.ironpython.com [mailto:users-
>> bounces at lists.ironpython.com] On Behalf Of Leonides Saguisag
>> Sent: Wednesday, October 07, 2009 1:36 PM
>> To: 'users at lists.ironpython.com'
>> Subject: [IronPython] Issue with using multiple forms in IronPython
>>
>> I am trying to create a simple app which has two forms. Form1
>> contains a button which, when clicked, should display Form2 as a
>> dialog. Here is the source code (developed using IronPython Studio):
>>
>> ### Program.py ###
>> from System import *
>> from System.Windows.Forms import *
>> from Form1 import *
>>
>> class WindowsApplication80: # namespace
>>
>> @staticmethod
>> def RealEntryPoint():
>> Application.EnableVisualStyles()
>> Application.Run(WindowsApplication8.Form1())
>>
>> if __name__ == "Program":
>> WindowsApplication80.RealEntryPoint();
>> ### end of Program.py ###
>>
>> ### Form1.py ###
>> import System
>> from System.Windows.Forms import *
>> from System.ComponentModel import *
>> from System.Drawing import *
>> from clr import *
>> from Form2 import *
>> class WindowsApplication8: # namespace
>>
>> class Form1(System.Windows.Forms.Form):
>> """type(_button1) == System.Windows.Forms.Button,
>> type(_form2) == System.Windows.Forms.Form"""
>> __slots__ = ['_button1', '_form2']
>> def __init__(self):
>> self.InitializeComponent()
>>
>> @accepts(Self(), bool)
>> @returns(None)
>> def Dispose(self, disposing):
>>
>>
>>
>> super(type(self), self).Dispose(disposing)
>>
>> @returns(None)
>> def InitializeComponent(self):
>> self._button1 = System.Windows.Forms.Button()
>> self.SuspendLayout()
>> #
>> # button1
>> #
>> self._button1.Location = System.Drawing.Point(96, 78)
>> self._button1.Name = 'button1'
>> self._button1.Size = System.Drawing.Size(75, 23)
>> self._button1.TabIndex = 0
>> self._button1.Text = 'button1'
>> self._button1.UseVisualStyleBackColor = True
>> self._button1.Click += self._button1_Click
>> #
>> # Form1
>> #
>> self.ClientSize = System.Drawing.Size(292, 273)
>> self.Controls.Add(self._button1)
>> self.Name = 'Form1'
>> self.Text = 'Form1'
>> self.ResumeLayout(False)
>>
>> @accepts(Self(), System.Object, System.EventArgs)
>> @returns(None)
>> def _button1_Click(self, sender, e):
>> self._form2 = WindowsApplication8.Form2()
>> ShowDialog(self._form2)
>> ### end of Form1.py ###
>>
>> ### Form2.py ###
>> import System
>> from System.Windows.Forms import *
>> from System.ComponentModel import *
>> from System.Drawing import *
>> from clr import *
>> class WindowsApplication8: # namespace
>>
>> class Form2(System.Windows.Forms.Form):
>> __slots__ = []
>> def __init__(self):
>>
>> self.InitializeComponent()
>>
>> @accepts(Self(), bool)
>> @returns(None)
>> def Dispose(self, disposing):
>>
>>
>>
>> super(type(self), self).Dispose(disposing)
>>
>> @returns(None)
>> def InitializeComponent(self):
>> self.SuspendLayout()
>> #
>> # Form2
>> #
>> self.ClientSize = System.Drawing.Size(292, 273)
>> self.Name = 'Form2'
>> self.Text = 'Form2'
>> self.Load += self._Form2_Load
>> self.ResumeLayout(False)
>> ### end of Form2.py ###
>>
>> The issue is that when I click on button1 on Form1, the debugger
>> stops in the _button1_Click method, on the following line:
>>
>> self._form2 = WindowsApplication8.Form2()
>>
>> Here is the exception detail:
>> ### Start of exception detail ###
>> IronPython.Runtime.Exceptions.PythonNameErrorException was unhandled
>> by user code
>> Message="name 'Form2' not defined"
>> Source="IronPython"
>> StackTrace:
>> at
>> IronPython.Runtime.Operations.Ops.CheckInitializedOrBuiltin(Object
>> o, ICallerContext context, String name)
>> at Form1._button1_Click$f630(FunctionEnvironment8Dictionary
>> $env, Object self, Object sender, Object e) in Form1.py:line 49
>> at IronPython.Runtime.Calls.Function3.Call(ICallerContext
>> context, Object arg0, Object arg1, Object arg2)
>> at IronPython.Runtime.Calls.Function3.Call(ICallerContext
>> context, Object[] args)
>> at IronPython.Runtime.Operations.Ops.Call(Object func, Object[] args)
>> at
>> IronPython.Modules.ClrModule.ReturnChecker.RuntimeChecker.Call(Object[] args)
>> at IronPython.Runtime.Operations.Ops.Call(Object func, Object[] args)
>> at
>> IronPython.Modules.ClrModule.ArgChecker.RuntimeChecker.Call(Object[]
>> args)
>> at IronPython.Runtime.Operations.Ops.Call(Object func, Object[] args)
>> at
>> IronPython.Runtime.Types.ReflectedEvent.EventDispatcher.Call(Object[] args)
>> at IronPython.Runtime.Operations.Ops.Call(Object func, Object[] args)
>> at IronPython.Runtime.Operations.Ops.Call(Object func, Object
>> arg0, Object arg1)
>> at System.Void(Object, EventArgs)##51(Object , Object , EventArgs )
>> at System.Windows.Forms.Control.OnClick(EventArgs e)
>> at System.Windows.Forms.Button.OnClick(EventArgs e)
>> at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
>> at System.Windows.Forms.Control.WmMouseUp(Message& m,
>> MouseButtons button, Int32 clicks)
>> at System.Windows.Forms.Control.WndProc(Message& m)
>> at System.Windows.Forms.ButtonBase.WndProc(Message& m)
>> at System.Windows.Forms.Button.WndProc(Message& m)
>> at
>> System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message&
>> m)
>> at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
>> at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr
>> hWnd,
>> Int32 msg, IntPtr wparam, IntPtr lparam)
>> at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
>> at
>> System.Windows.Forms.Application.ComponentManager.System.Windows.Form
>> s
>> .UnsafeN
>> ativeMethods.IMsoComponentManager.FPushMessageLoop(Int32
>> dwComponentID, Int32 reason, Int32 pvLoopData)
>> at
>> System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(In
>> t
>> 32
>> reason, ApplicationContext context)
>> at
>> System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32
>> reason, ApplicationContext context)
>> at System.Windows.Forms.Application.Run(Form mainForm)
>> at Run##60(Object )
>> at IronPython.Runtime.Calls.FastCallable1.Call(ICallerContext
>> context, Object arg0)
>> at IronPython.Runtime.Calls.FastCallable1.Call(ICallerContext
>> context, Object[] args)
>> at
>> IronPython.Compiler.MethodBinder.MethodTarget.Call(ICallerContext
>> context, Object[] args)
>> at
>> IronPython.Compiler.MethodBinder.TargetSet.Call(ICallerContext
>> context, CallType callType, Object[] args)
>> at
>> IronPython.Compiler.MethodBinder.TargetSet.Call1(ICallerContext
>> context, Object arg0)
>> at
>> IronPython.Runtime.Calls.FastCallableWithContextAny.Call(ICallerConte
>> x
>> t
>> context, Object arg0)
>> at
>> IronPython.Runtime.Calls.BuiltinFunction.Call(ICallerContext
>> context, Object arg0)
>> at
>> IronPython.Runtime.Operations.Ops.CallWithContext(ICallerContext
>> context, Object func, Object arg0)
>> at Program.RealEntryPoint$f634(FunctionEnvironment4Dictionary
>> $env) in Program.py:line 10
>> at IronPython.Runtime.Calls.Function0.Call(ICallerContext context)
>> at
>> IronPython.Runtime.Operations.Ops.CallWithContext(ICallerContext
>> context, Object func)
>> at Program.Initialize() in Program.py:line 13
>> at
>> IronPython.Runtime.Operations.Ops.ExecuteCompiled(InitializeModule
>> init)
>> InnerException:
>> ### End of exception detail ###
>>
>> I am stumped as to why it thinks Form2 is not defined.
>>
>> Just to add, all of the files are all located in the same folder:
>> WindowsApplication8\Form1.py
>> WindowsApplication8\Form1.resx
>> WindowsApplication8\Form2.py
>> WindowsApplication8\Form2.resx
>> WindowsApplication8\Program.py
>>
>> I would greatly appreciate any insight anyone can provide.
>>
>> Thanks,
>> -- Leo
>> _______________________________________________
>> Users mailing list
>> Users at lists.ironpython.com
>> http://lists.ironpython.com/listinfo.cgi/users-ironpython.com
>>
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--
http://www.ironpythoninaction.com/
http://www.voidspace.org.uk/blog
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