[Gambas-user] How to stop a control raising events?

[Tony Morehen]

Careful, though, Object.Lock inhibits all events associated with a 
control, including events from internal controls.  For example, DirView 
has an internal TreeView control.  When you click on a folder or set the 
Current property in code,  DirView tells the TreeView to expand that 
branch.  TreeView then raises the Expand event, requesting that DirView 
fill in the sub-folders of that branch.  After that is done, DirView 
raises its click event.

I wanted the click event to only occur when the user clicks on a folder 
so I surrounded the code setting DirView.Current with 
object.lock/unlock.  All of a sudden, DirView stopped updating 
properly.  This seemed to occur only during the initialization of 
DirView.  It took me 2 days to figure out that the object.lock stopped 
the TreeView Expand event so DirView did not update. Another control was 
setting the DirView Current property during its initialization, not any 
of my own code, which made debugging even harder.

I wound up replacing the object.lock with a boolean flag.  When set, the 
flag stops the Click event code from running.


On 2017-08-13 06:18 PM, Tobias Boege wrote:
> On Mon, 14 Aug 2017, adamnt42 at ...626... wrote:
>> (A quicky!)
>>
>> Wasn't there a way to temporarily stop a control raising events, MyControl.Lock or somesuch? My memory fails!
>> tia
>> bruce
> Object.Lock(x)
>