Grasshopper

algorithmic modeling for Rhino

Get current GrasshopperDocument in C#

Hello all

I am working in a Grasshopper project using C# and Visual Studio 2012. I would like to know how can I get my current Grasshopper document to work with it. For example, I have declared my variable:

private GH_Document GrasshopperDocument;

But GH_Document doesn't have any methods to get my active document.

Can someone help me? I'd like to do this

private GH_Document GrasshopperDocument = GH_Document.GetMyActiveDocumentSomehow;

Thank you very much

Views: 2308

Replies to This Discussion

Permalink Reply by Andrew Heumann on October 31, 2014 at 11:02am

within a GH_Component class, you can get the active document with this.OnPingDocument().

Permalink Reply by mcomart on November 4, 2014 at 2:08am

Thank you! 

Permalink Reply by James Ramsden on June 11, 2015 at 10:55am

Just stumbled upon this and it was exactly the information I needed. Thanks from me too :)

Permalink Reply by David Rutten on June 11, 2015 at 10:58am

Just note that that method may return null under certain conditions. Be sure to check for that.

Permalink Reply by huaxiamengqing on June 11, 2015 at 8:55pm
Permalink Reply by James Ramsden on June 12, 2015 at 5:54pm

Hi David,

I am trying to expose the equivalent functionality in Visual Studio provided by the 'GrasshopperDocument' variable in the C# component. Is this the best way to go about it? Does the C# component use a different method which avoids the 'null' problem?

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