/// <summary>
/// Implement this method as an external command for Revit.
/// </summary>
/// <param name="commandData">An object that is passed to the external application
/// which contains data related to the command,
/// such as the application object and active view.</param>
/// <param name="message">A message that can be set by the external application
/// which will be displayed if a failure or cancellation is returned by
/// the external command.</param>
/// <param name="elements">A set of elements to which the external application
/// can add elements that are to be highlighted in case of failure or cancellation.</param>
/// <returns>Return the status of the external command.
/// A result of Succeeded means that the API external method functioned as expected.
/// Cancelled can be used to signify that the user cancelled the external operation
/// at some point. Failure should be returned if the application is unable to proceed with
/// the operation.</returns>
public virtual Result Execute(ExternalCommandData commandData
, ref string message, ElementSet elements)
{
try
{
Document document = commandData.Application.ActiveUIDocument.Document;
Autodesk.Revit.DB.View view = commandData.Application.ActiveUIDocument.ActiveView;
viewDic.Clear();
ElementId datumRef = commandData.Application.ActiveUIDocument.Selection.GetElementIds().First();
if (datumRef == null)
{
return(Result.Cancelled);
}
DatumPlane datum = document.GetElement(datumRef) as DatumPlane;
ISet <ElementId> viewList = datum.GetPropagationViews(view);
foreach (ElementId id in viewList)
{
Autodesk.Revit.DB.View pView = document.GetElement(id) as Autodesk.Revit.DB.View;
if (!viewDic.Keys.Contains(pView.ViewType + " : " + pView.Name))
{
viewDic.Add(pView.ViewType + " : " + pView.Name, id);
}
}
//// Show UI
using (PropogateSetting settingForm = new PropogateSetting())
{
if (settingForm.ShowDialog() == DialogResult.OK)
{
ISet <ElementId> pViewList = new List <ElementId>() as ISet <ElementId>;
foreach (var item in settingForm.propagationViewList.CheckedItems)
{
ElementId selectedView = viewDic[item.ToString()];
pViewList.Add(selectedView);
}
using (Transaction tran = new Transaction(document, "propagation"))
{
tran.Start();
datum.PropagateToViews(view, pViewList);
tran.Commit();
}
}
}
return(Result.Succeeded);
}
catch (Exception ex)
{
message = ex.Message;
return(Result.Failed);
}
}