Python PostCommand to run C# add-in using ClientId

Developers
1

I have been trying to run a PostCommand using Dynamo Python similar to running a post command in C#

C# Sample of running a add-in using the ClientId.

string ClientId= "64b3d907-37cf-4cab-8bbc-3de9b66a3efa";
RevitCommandId id_addin = RevitCommandId.LookupCommandId(ClientId);
uiapp.PostCommand( id_addin );

Here I have written it using Dynamo Python, but get an error “expected PostableCommand, got str”

ClientId = "64b3d907-37cf-4cab-8bbc-3de9b66a3efa"
# Get RevitCommandId of PostableCommand
id_addin = RevitCommandId.LookupPostableCommandId(ClientId)
# Run PostableCommand
uiapp.PostCommand(id_addin)

Can this be done and if so what is wrong with the code above?

2

Hi Danny,

Here is an example of using postable commands to set design options. Maybe this is of some use?

Cheers,
Dan

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3

I’ve seen this example, therefore I know it possible to do. I’m trying to run a add-in which I have built using the ClientId. I’ve done it in c# using Jeremy’s example. The Dynamo Python gives me a str error. It seems the input type isn’t matching.

4

As it says in the error message: LookupPostableCommandId expects a PostableCommand, not a string.
The C# example you mentioned makes use of the LookupCommandId method - and that one does expect a string.

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