Update Input parameters of component based on the values of another Input

Grasshopper Developer
, ,
1

I am developing a custom component in C# VS, the behavior of this component will depend on options that the user provide. For now I have a number of inputs that are common to all options and others that will be created dynamically based on the option the user provide.

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For now I manage to update the parameters on the component but I cannot connect anything to it and read values. Here is a snippet of the code Inside SolveInstance:

         switch (BType)
        {
            case "5":
                for (int i = 4; i < this.Params.Input.Count(); i++)
                { this.Params.UnregisterInputParameter(this.Params.Input[i]); }
                int a = this.Params.Input.Count;
                Grasshopper.Kernel.Parameters.Param_Number param3 = new Grasshopper.Kernel.Parameters.Param_Number();
                this.Params.RegisterInputParam(param3);
                this.Params.Input[4].Name = "Point Contact Properties";
                this.Params.Input[4].NickName = "Point Contact";
                this.Params.Input[4].Access = GH_ParamAccess.list;
                this.Params.Input[4].Optional = true;
                break;

            case "6":
                for (int i = 4; i < this.Params.Input.Count(); i++)
                { this.Params.UnregisterInputParameter(this.Params.Input[i]); }
                Grasshopper.Kernel.Parameters.Param_Number param1 = new Grasshopper.Kernel.Parameters.Param_Number();
                this.Params.RegisterInputParam(param1);
                this.Params.Input[4].Name = "Beam Properties";
                this.Params.Input[4].NickName = "Beam";
                this.Params.Input[4].Access = GH_ParamAccess.list;
                this.Params.Input[4].Optional = true;
                this.Params.OnParametersChanged();
                 a = this.Params.Input.Count;
                ExpireSolution(true);
                DA.GetDataList(4, MaterialProperty);
                break;
            case "9":
                for (int i = 4; i < this.Params.Input.Count(); i++)
                { this.Params.UnregisterInputParameter(this.Params.Input[i]); }
                Grasshopper.Kernel.Parameters.Param_Number param2 = new Grasshopper.Kernel.Parameters.Param_Number();
                
                this.Params.RegisterInputParam(param2);
                this.Params.Input[4].Name = "Connection Properties";
                this.Params.Input[4].NickName = "Connection";
                this.Params.Input[4].Access = GH_ParamAccess.list;
                this.Params.Input[4].Optional = true;
                 a = this.Params.Input.Count;
                this.Params.OnParametersChanged();
                ExpireSolution(true);
                DA.GetDataList(4, MaterialProperty);
                break;
        }

Can anyone please tell me what I am doing wrong here or if I am missing something!
Thanks,

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