» VL Dynamic instancing without Delegates
This site relies heavily on Javascript. You should enable it if you want the full experience. Learn more.

VL Dynamic instancing without Delegates

demo reflection vl

about

Hi!

I was wondering how to instance an arbitrary object based on its type name in VL for a while.

For now I offer this solution that uses the built-in Deserialize functionality, inspired by the arbitrary object spread demo in the VL Serialization help patch.

Although not perfect (any object you expect to instance has to be explicitly used in the patch (inspired by elias's LINK experience)), it's the closest solution I know of until this functionality gets native support. Is it better than Delegates with a Dictionary? You decide!

Any simplification tips appreciated.

Until next time!

Elias 21/01/2019 - 17:12

Hey Dominik,
nice to put this out there. I'll report back once I get to VL and dynamic instantiation again.

microdee 22/01/2019 - 12:26

Is there a limitation of why Activator.CreateInstance wouldn't work in vl? at least it should work in script region https://docs.microsoft.com/en-us/dotnet/api/system.activator.createinstance?view=netframework-4.7.2

also for more reflection goodies check out fasterflect https://github.com/buunguyen/fasterflect ;)

Elias 23/01/2019 - 12:31

CteateInstance should also work but maybe little tricky to know what values to feed for the arguments. Would be easier if a default ctor would be present in target code.

anonymous user login

Shoutbox

~2h ago

joreg: reminder: this wednesday #vvvv meetup nr 8 in #berlin 8-berlin-vvvv-meetup

~1d ago

metrowave: Yes, thanks for the streamming.

~3d ago

Hadasi: ...classic

~3d ago

Hadasi: @welove the videos are still up there https://www.twitch.tv/wirmachenbunt/videos

~3d ago

welovemedia: Big thanks for the stream, will this stay online or be shared as a download for those who could not watch it live?

~3d ago

CeeYaa: Big THX for the daylong streaming - and amazing Project Insights https://www.twitch.tv/videos/412932722

~4d ago

u7angel: twitch livestream vvvv gamma

~5d ago

u7angel: @domj, sure

~5d ago

domj: @u7angel: nice! How about the talk later at 7?

~5d ago

u7angel: vvvv-gamma-presentation will be streamed on twitch, starts 2pm, channel name is vvvv gamma