public Result Execute(
ExternalCommandData commandData,
ref string message,
ElementSet elements)
{
UIApplication app = commandData.Application;
Document doc = app.ActiveUIDocument.Document;
if (doc.IsFamilyDocument)
{
message = "This command can only be used in a project, not in a family file.";
return(Result.Failed);
}
using (Transaction tx = new Transaction(doc))
{
tx.Start("Create per doc Parameters");
// get the current shared params definition file
DefinitionFile sharedParamsFile = LabUtils.GetSharedParamsFile(app.Application);
if (null == sharedParamsFile)
{
message = "Error getting the shared params file.";
return(Result.Failed);
}
// get or create the shared params group
DefinitionGroup sharedParamsGroup = LabUtils.GetOrCreateSharedParamsGroup(
sharedParamsFile, LabConstants.ParamGroupName);
if (null == sharedParamsGroup)
{
message = "Error getting the shared params group.";
return(Result.Failed);
}
// visible param
Definition docParamDefVisible = LabUtils.GetOrCreateSharedParamsDefinition(
sharedParamsGroup, ParameterType.Integer, LabConstants.ParamNameVisible, true);
if (null == docParamDefVisible)
{
message = "Error creating visible per-doc parameter.";
return(Result.Failed);
}
// invisible param
Definition docParamDefInvisible = LabUtils.GetOrCreateSharedParamsDefinition(
sharedParamsGroup, ParameterType.Integer, LabConstants.ParamNameInvisible, false);
if (null == docParamDefInvisible)
{
message = "Error creating invisible per-doc parameter.";
return(Result.Failed);
}
// bind the param
try
{
CategorySet catSet = app.Application.Create.NewCategorySet();
catSet.Insert(doc.Settings.Categories.get_Item(
BuiltInCategory.OST_ProjectInformation));
Binding binding = app.Application.Create.NewInstanceBinding(catSet);
doc.ParameterBindings.Insert(docParamDefVisible, binding);
doc.ParameterBindings.Insert(docParamDefInvisible, binding);
}
catch (Exception e)
{
message = "Error binding shared parameter: " + e.Message;
return(Result.Failed);
}
// set the initial values
// get the singleton project info element
Element projInfoElem = LabUtils.GetProjectInfoElem(doc);
if (null == projInfoElem)
{
message = "No project info element found. Aborting command...";
return(Result.Failed);
}
// For simplicity, access params by name rather than by GUID
// and simply the first best one found under that name:
projInfoElem.LookupParameter(LabConstants.ParamNameVisible).Set(55);
projInfoElem.LookupParameter(LabConstants.ParamNameInvisible).Set(0);
tx.Commit();
}
return(Result.Succeeded);
}
//static public BuiltInCategory Target = BuiltInCategory.OST_Walls;
//static public string Target = "Drawing1.dwg";
//static public BuiltInCategory Target = BuiltInCategory.OST_IOSModelGroups; // doc.Settings.Categories.get_Item returns null
//static public string Target = "Model Groups"; // doc.Settings.Categories.get_Item throws an exception SystemInvalidOperationException "Operation is not valid due to the current state of the object."
//static public BuiltInCategory Target = BuiltInCategory.OST_Lines; // model lines
//static public BuiltInCategory Target = BuiltInCategory.OST_SWallRectOpening; // Rectangular Straight Wall Openings, case 1260656 [Add Parameters Wall Opening]
//static public BuiltInCategory Target = BuiltInCategory.OST_Materials; // can I attach a shared parameter to a material element? Yes, absolutely, no problem at all.
public Result Execute(
ExternalCommandData commandData,
ref string message,
ElementSet elements)
{
UIApplication uiapp = commandData.Application;
Application app = uiapp.Application;
Document doc = uiapp.ActiveUIDocument.Document;
Category cat = null;
#region Determine model group category
#if DETERMINE_MODEL_GROUP_CATEGORY
List <Element> modelGroups = new List <Element>();
//Filter fType = app.Create.Filter.NewTypeFilter( typeof( Group ) ); // "Binding the parameter to the category Model Groups is not allowed"
Filter fType = app.Create.Filter.NewTypeFilter(typeof(GroupType)); // same result "Binding the parameter to the category Model Groups is not allowed"
Filter fCategory = app.Create.Filter.NewCategoryFilter(BuiltInCategory.OST_IOSModelGroups);
Filter f = app.Create.Filter.NewLogicAndFilter(fType, fCategory);
if (0 < doc.get_Elements(f, modelGroups))
{
cat = modelGroups[0].Category;
}
#endif // DETERMINE_MODEL_GROUP_CATEGORY
#endregion // Determine model group category
if (null == cat)
{
// The category we are defining the parameter for
try
{
cat = doc.Settings.Categories.get_Item(Target);
}
catch (Exception ex)
{
message = "Error obtaining the shared param document category: "
+ ex.Message;
return(Result.Failed);
}
if (null == cat)
{
message = "Unable to obtain the shared param document category.";
return(Result.Failed);
}
}
// Get the current shared params definition file
DefinitionFile sharedParamsFile = LabUtils.GetSharedParamsFile(app);
if (null == sharedParamsFile)
{
message = "Error getting the shared params file.";
return(Result.Failed);
}
// Get or create the shared params group
DefinitionGroup sharedParamsGroup
= LabUtils.GetOrCreateSharedParamsGroup(
sharedParamsFile, LabConstants.SharedParamsGroupAPI);
if (null == sharedParamsGroup)
{
message = "Error getting the shared params group.";
return(Result.Failed);
}
// Visibility of the new parameter: the
// Category.AllowsBoundParameters property
// determines whether a category is allowed to
// have user-visible shared or project parameters.
// If it is false, it may not be bound to visible
// shared parameters using the BindingMap. Note
// that non-user-visible parameters can still be
// bound to these categories.
bool visible = cat.AllowsBoundParameters;
// Get or create the shared params definition
Definition fireRatingParamDef
= LabUtils.GetOrCreateSharedParamsDefinition(
sharedParamsGroup, ParameterType.Number,
LabConstants.SharedParamsDefFireRating, visible);
if (null == fireRatingParamDef)
{
message = "Error in creating shared parameter.";
return(Result.Failed);
}
// Create the category set for binding and add the category
// we are interested in, doors or walls or whatever:
CategorySet catSet = app.Create.NewCategorySet();
try
{
catSet.Insert(cat);
}
catch (Exception)
{
message = string.Format(
"Error adding '{0}' category to parameters binding set.",
cat.Name);
return(Result.Failed);
}
// Bind the parameter.
try
{
using (Transaction t = new Transaction(doc))
{
t.Start("Bind Fire Rating Shared Parameter");
Binding binding = app.Create.NewInstanceBinding(catSet);
// We could check if already bound, but looks
// like Insert will just ignore it in that case.
doc.ParameterBindings.Insert(fireRatingParamDef, binding);
// You can also specify the parameter group here:
//doc.ParameterBindings.Insert( fireRatingParamDef, binding, BuiltInParameterGroup.PG_GEOMETRY );
t.Commit();
}
}
catch (Exception ex)
{
message = ex.Message;
return(Result.Failed);
}
return(Result.Succeeded);
}
