Parameter of Revit API – 10: Group Parameters

We talked about the BuiltInParameterGroup enumeration and how to group parameters based on its values before. Now let’s see how the RevitAddinWizard can help to do the same work. The Parameter Grouper can be found from either the Revit Addin Coder sub-menu under the Tools or the following Revit Addin Coder toolbar:

 

 
When the button is clicked, the Parameter Grouper window will show up:

 

 
If the BuiltInParameterGroup enumeration and the method name are specified like the above, the following Parameter Grouper help methods will be created in the chosen class:

        public static List<Parameter> ParametersInGroup_Constraints(Element e)
        {
            return RawGroupParameters(e)[BuiltInParameterGroup.PG_CONSTRAINTS];
        }

        public static Dictionary<BuiltInParameterGroup, List<Parameter>> RawGroupParameters(Element e)
        {
            Dictionary<BuiltInParameterGroup, List<Parameter>> dict =
                new Dictionary<BuiltInParameterGroup, List<Parameter>>();
           
            foreach (Parameter p in e.Parameters)
            {
                if (!dict.ContainsKey(p.Definition.ParameterGroup))
                {
                    dict.Add(p.Definition.ParameterGroup, new List<Parameter>());
                }
           
                dict[p.Definition.ParameterGroup].Add(p);
            }
           
            return dict;
        }

In terms of how to use the help methods, please refer to previous posts for ideas and code examples.

Parameter Grouper of RevitAddinWizard can do all these in  no time. 

Links to some related articles:

Parameter of Revit API - BuiltInParameter

Parameter Retriever of RevitAddCoder

Parameter of Revit API - Parameter Information

Parameter Infoer of RevitAddCoder

Parameter of Revit API - ParameterType And StorageType

Parameter Typer of RevitAddCoder

Parameter of Revit API - BuiltInParameterGroup

Parameter Filter of RevitAddCoder

Parameter of Revit API - Read/Write Parameter Values

Parameter of Revit API - Set Parameter Value

Parameter Writer of RevitAddCoder