Adding Project Parameters

[Yoshiyuki_Miyauchi]

I want to use the Revit API to add project parameters by referencing information in the shared parameter file.
Which API would help? I would be glad to know.

[Mohamed_Arshad · Accepted solution]

こんにちは@Yoshiyuki_Miyauchi さん

Kindly follow below steps to add project parameter using Revit API.

1. Open SharedParameterFile

2. Get Group from SharedParameter File

3. Get Parameter

4. Filter Categories

5. Create Type/ Instance Binding

6. Bind parameter to project

Reference Code

//Revit Document Access
            Application app = commandData.Application.Application;
            UIApplication uiApp = commandData.Application;
            UIDocument uiDoc = uiApp.ActiveUIDocument;
            Document doc = uiDoc.Document;

            //SharedParameter File Path
            string path = @"C:\Users\XXXXX\Desktop\TextShared.txt";

            //Open SharedParameter File
            DefinitionFile defFile = app.OpenSharedParameterFile();

            ExternalDefinition parameter = null;

            //Get Group
            foreach (DefinitionGroup group in defFile.Groups)
            {
                if (group.Name == "Demo")
                {
                    Definitions extDefinitions = group.Definitions;

                    //Get Parameter
                    foreach (ExternalDefinition definition in extDefinitions)
                    {
                        if (definition.Name == "Demo Parameter")
                        {
                            parameter = definition;
                        }
                    }
                }
            }

            //Filter Categories
            Categories cat = doc.Settings.Categories;
            CategorySet set = new CategorySet();

            foreach (Category category in cat)
            {
                if (category.Name == "Walls")
                {
                    set.Insert(category);
                }
            }


            using (Transaction insert = new Transaction(doc, "add parameter"))
            {
                insert.Start();

                //Create Type Binding
                Binding type = app.Create.NewTypeBinding(set);

                //Bind Type Parameter
                BindingMap map = uiDoc.Document.ParameterBindings;
                map.Insert(parameter, type, BuiltInParameterGroup.PG_DATA);

                insert.Commit();
            }

Reference Links

https://spiderinnet.typepad.com/blog/2011/05/parameter-of-revit-api-31-create-project-parameter.html 

Hope this Will Helps 🙂

[Yoshiyuki_Miyauchi]

@Mohamed_Arshad san

Thank you!
That was very helpful.