Adding Removing Parameters

Hi, I would like to add/remove parameters in a C# custom component via a custom button or through the context menu of the component (not the IGH_VariableParameterComponent interface (+)(-)).

I tried the following however I cannot connect any wires to parameters that are added like below. Could someone tell me what I am missing?

Thanks a bunch in advance.

public void AddParam(object sender, EventArgs e)
{
Param_GenericObject param = new Param_GenericObject();
param.Name = "L"+(ParamsLocal.Count + 1);
param.NickName = param.Name;
param.Description = "Param" + (Params.Input.Count + 2);
param.Access = GH_ParamAccess.item;

if (Params.RegisterInputParam(param))
{
ParamsLocal.Add(param);
ExpireSolution(true);
}}

public void RemoveParam(object sender, EventArgs e)
{
if (ParamsLocal.Count < 1) return;

Param_GenericObject removeMe = ParamsLocal[ParamsLocal.Count - 1];
if(Params.UnregisterInputParameter(removeMe)){
ParamsLocal.Remove(removeMe);
ExpireSolution(true);
}}

Replies to This Discussion

Permalink Reply by Giulio Piacentino on July 11, 2014 at 3:38am

Hi Tim

may I ask if you really need to take this road? It is a very bumpy road, to be honest. It's also highly likely that it will take quite a bit of work to maintain it.

What are you trying to do with the variable input?

Giulio
--
Giulio Piacentino
for Robert McNeel & Associates
giulio@mcneel.com

Permalink Reply by Tim on July 11, 2014 at 3:46am

Hi Giulio,

thanks a lot for your reply.

Here is what I want to do:

A component that creates a construction consisting out of layers. As first input I would like to have a string to name the construction.

The second input should be the first layer.

If the construction has more layers I would like to have a btn that allows to add more layer inputs.

I implemented this component taking a string and a list of layers before. However many people found the control over the ordering of the layers confusing.

Id be very happy to hear if you have a better idea. Thanks a bunch for your help in advance.

Tim

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