Marshall Important ?

[Jahya]

Is it necessary to marshall whenever we want to set a properties of a controls
from another thread? I have background thread and it perform a job to set
a label1.text (label created on main thread). This job is so simple, so I
don't marshalled the call, and the program run just fine. Is it safe if I
ignore marshall? Or is there any side effect if do this?

[David Williams]

You should not need to marshal if all your work is done within the same
AppDomain. The only time that you should need to marshal is been AppDomains
or to a COM object.

However... if you mean to ask if you need to Invoke to call a form element
from a different thread, then yes, you do. Only if you get luckily will a
control work correctly if called from another thread. Controls are NOT
thread safe.

HTH

David
"Jahya" <jahya@yahoo.com> wrote in message news:3d774ef9$1@10.1.10.29...
>
> Is it necessary to marshall whenever we want to set a properties of a
controls
> from another thread? I have background thread and it perform a job to set
> a label1.text (label created on main thread). This job is so simple, so I
> don't marshalled the call, and the program run just fine. Is it safe if I
> ignore marshall? Or is there any side effect if do this?