[Gambas-user] How to make Textbox only accept alphabetic and numbers characters

[Bruce]

On 14/5/21 5:18 pm, Christof Thalhofer wrote:
> Am 14.05.21 um 08:34 schrieb Bruce:
> 
>> We mightn't have chocolate forever either but that doesn't mean we
>> can't eat it now. :-)
> 
> :-)
> 
> This is the help of Mailman:
> 
>> topics_enabled (topics): Should the topic filter be enabled or
>> disabled?
>>
>> The topic filter categorizes each incoming email message according to
>> regular expression filters you specify below. If the message's
>> Subject: or Keywords: header contains a match against a topic filter,
>> the message is logically placed into a topic bucket. Each user can
>> then choose to only receive messages from the mailing list for a
>> particular topic bucket (or buckets). Any message not categorized in
>> a topic bucket registered with the user is not delivered to the
>> list.
>>
>> Note that this feature only works with regular delivery, not digest
>> delivery.
>>
>> The body of the message can also be optionally scanned for Subject:
>> and Keywords: headers, as specified by the topics_bodylines_limit
>> configuration variable.
> 
> As I understand this, if set true, everyone has to give it's mail a
> topic to be sure that it will be read by the people which have chosen
> the same one. So if we introduce "Advanced" as topic and you have chosen
> that, my mail will only reach you if it contains "Advanced" as keyword.
> 
> Do i understand that right? Then I am against that.
> 
> Another thing is if we say that "[beginner]" can be set in a subject, so
> that you can filter it out by yourself to ignore it if you'd like to. We
> could write it into the Netiquette.
> 
> Alles Gute
> 
> Christof Thalhofer
> 
> 
> 
> ----[ http://gambaswiki.org/wiki/doc/netiquette ]----
> 

That is a very good point!
That help is quite unclear even to a native English speaker. I did set 
it on our local mailman but it appears that everyone else here at 
Paddys-Hillhas taken Friday off!  Of course I get the reflection(?) of 
my own post but did the others get it? I can't tell.

I will continue to test locally and let you know, but I think this might 
be a non-starter.

cheers
b