Services & ResourcesWolfram ForumsMathGroup Archive

[Date Index] [Thread Index] [Author Index]

Re: Re: Initialization problem in a

• To: mathgroup at smc.vnet.net
• Subject: [mg106681] Re: [mg106640] Re: [mg106634] Initialization problem in a
• From: DrMajorBob <btreat1 at austin.rr.com>
• Date: Thu, 21 Jan 2010 04:51:01 -0500 (EST)
• References: <201001191014.FAA29115@smc.vnet.net>
• Reply-to: drmajorbob at yahoo.com

As far as I can tell, y isn't used or displayed in these solutions and  
isn't defined outside the panel, so what's all that "assign" gyration  
about?

Bobby

On Wed, 20 Jan 2010 05:46:01 -0600, Patrick Scheibe  
<pscheibe at trm.uni-leipzig.de> wrote:

> Hi,
>
> it matters that your assign and initialize functions have DownValues.
>
> Panel@DynamicModule[{x, y, assign, initialize},
>   Grid[{{"", "A", "B"}, {"w/ assign:",
>      RadioButton[Dynamic[x, (x = #; assign[]) &], True],
>      RadioButton[Dynamic[x, (x = #; assign[]) &],
>       False]}, {"w/o assign:", RadioButton[Dynamic@x, True],
>      RadioButton[Dynamic@x, False]}, {"value:", Dynamic@x}},
>    Dividers -> {False, {False, True, True, True, False}},
>    Alignment -> {Left, {Center}}],
>   Initialization :> (assign[] := (y =
>        x);(*further variables to update*)
>     initialize[] := (x = True; assign[]);(*initialization function*)
>     initialize[];)]
>
> Cheers
> Patrick
>
>
> On Tue, 2010-01-19 at 05:14 -0500, István wrote:
>> Dear Group,
>>
>> I have some problem with a complex interface inside a DynamicModule.
>> This is a toy version of the program, which can fully reproduce the
>> malfunction:
>>
>> Panel@DynamicModule[
>>   {x, y, assign, initialize},
>>
>>   Grid[{
>>     {"", "A", "B"},
>>     {"w/ assign:", RadioButton[Dynamic[x, (x = #; assign) &], True],
>>      RadioButton[Dynamic[x, (x = #; assign) &], False]},
>>     {"w/o assign:", RadioButton[Dynamic@x, True],
>>      RadioButton[Dynamic@x, False]},
>>     {"value:", Dynamic@x}
>>     }, Dividers -> {False, {False, True, True, True, False}},
>>    Alignment -> {Left, {Center}}],
>>
>>   Initialization :> (
>>     assign := (y = x);(* further variables to update *)
>>     initialize := (x = True; assign); (* initialization function *)
>>     initialize;
>>     )
>>   ]
>>
>> Now for some reason, the radiobuttons do not function as intended (at
>> least as I want).
>> The following clicking orders do not work:
>>
>> [w/ + B] then [w/ + A]
>> [w/o + B] then [w/ + A]
>>
>> these work correctly:
>>
>> [w/ + B] then [w/o + A]
>> [w/o + B] then [w/o + A]
>>
>> I guess, that the problem is with the "initialize" (or the "assign")
>> function. Any idea?
>> Thanks in advance
>>
>> Istv=E1n
>>
>
>


-- 
DrMajorBob at yahoo.com

• References:
  • Initialization problem in a DynamicModule
    • From: István <replicatorzed@gmail.com>