[Gambas-user] Chronic columnview Woes

[Richard Terry]

Fabien Bodard wrote:
> Use a flag!!!
> Le 15 mai 2013 03:46, "Richard Terry" <rterry at ...1823...> a écrit :
>   
Sorry Fabien, don't mean to be a pest but if this was a simple problem 
I've figure it myself. I don't understand why this code works erratically.

Could you explain what you mean by use a flag with a couple of lines of 
sample code.

Regards

richard

>   
>> Benoît Minisini wrote:
>>     
>>> Le 08/05/2013 02:03, Richard Terry a écrit :
>>>
>>>       
>>>> Hi List,
>>>>
>>>>
>>>>         
>>>  > ...
>>>  >
>>>
>>>       
>>>> However, lets say I want to popup a menu of the letters collection:
>>>>
>>>> If I right mouse click on the list to bring up the menu the
>>>> cvwLetters_Menu event triggers, but if one inspects the cvwLetters
>>>> control itself in the IDE, the cvwLetters.item.key is null, however the
>>>> cvwletters.selected[0] does contain the value one would expect to be in
>>>> the cvwLetters.item.key.
>>>>
>>>> I've tried doing e.g cvwLetters.movecurrent() before popping up the
>>>> menu, this does not seem to make much difference.
>>>>
>>>>         
>>> The Menu event is not an event managed by the ColumnView control, but by
>>> its Control parent class. This is the reason why the Item property is
>>> not set during the Menu event handler. The Menu event is raised even if
>>> you don't click on an item.
>>>
>>> Normally, the Click event will be raised before the Menu event, and so
>>> you can store the key of the ColumnView.Item property during the Click
>>> event handler (which is a ColumnView event) to use it later during the
>>> Menu event handler.
>>>
>>>
>>>       
>>>> Also I've a chronic problem trying to generate a columnview click event
>>>> in code, with a similar outcome to the above - the item.key is not set
>>>>
>>>>         
>>> The Item property *is* set during a Click event handler. What are you
>>> talking about with "generate a columnview click event"?
>>>
>>>
>>>       
>> What I meant was this. Lets say you have loaded the columnview with
>> data. Now, if the user was sitting in front of the program and wanted to
>> select an item in the columnview, then he would click on the column
>> which one would then trap the event and do something with it.
>>
>> I often need to be able to emulate that in code, ie have the program do
>> the same thing. Doing this
>>
>> columnview1.Movefirst()
>> columnview1.item.selected = True
>>
>> will sometimes work ie this triggeres the columnview1_Select() routine
>> and any code associated with this.
>>
>> Hope this is clearer.
>>
>> Regards
>>
>> Richard
>>
>> Richard
>>
>>
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>>     
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