Instant Autodesk Revit 2013 Customization With ... (2025)

: A tool within the SDK to load code without restarting Revit. 🏗️ Basic Project Setup

(Includes the crucial RevitAPI.dll and RevitAPIUI.dll ). Instant Autodesk Revit 2013 Customization with ...

To help you move faster, would you like a code snippet for a (like auto-renaming levels) or a guide on debugging your code? : A tool within the SDK to load

: The primary way to "find" things in your model (like all Walls or Doors). : The primary way to "find" things in

💡 : Use RevitLookup . It is an open-source tool that lets you "peek" under the hood of Revit elements to see their API properties in real-time.

: Use uiApp.ActiveUIDocument.Selection to interact with what the user clicks.

[Autodesk.Revit.Attributes.Transaction(Autodesk.Revit.Attributes.TransactionMode.Manual)] public class MyCommand : IExternalCommand { public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements) { // 1. Get the Document UIApplication uiApp = commandData.Application; Document doc = uiApp.ActiveUIDocument.Document; // 2. Start a Transaction using (Transaction trans = new Transaction(doc, "My Customization")) { trans.Start(); // Your logic goes here (e.g., changing a parameter) trans.Commit(); } return Result.Succeeded; } } Use code with caution. Copied to clipboard 📝 Manifest Files (.addin)