public void ShowSample()
{
Database db = GetDatabase();
Editor ed = GetEditor();
ed.WriteMessage("Adding a new property set definition contains a formula property to calculate wall volume.\n");
// we need to add all the automatic properties prior to the formula property
PropertySetDefinition psd = CreateWallPropertySetDefinition();
// then we add the property set definition to the dictionary to make formula property work properly
DictionaryPropertySetDefinitions dict = new DictionaryPropertySetDefinitions(db);
using (Transaction trans = db.TransactionManager.StartTransaction())
{
dict.AddNewRecord("SampleWallPropertySetDefinition", psd);
trans.AddNewlyCreatedDBObject(psd, true);
// now we can create the formula property
PropertyDefinitionFormula formula = new PropertyDefinitionFormula();
formula.SetToStandard(db);
formula.SubSetDatabaseDefaults(db);
formula.Name = "Wall Volume";
formula.UseFormulaForDescription = true;
// before setting formula string to the formula property, we need to make sure
// that the property definition is added to the property set definition (which has an object id)
psd.Definitions.Add(formula);
// so we can set the formula string now
formula.SetFormulaString("[Length]*[Height]*[Width]");
// and here we change the sample values of the referenced properties
formula.DataItems[0].Sample = 1;
formula.DataItems[1].Sample = 2;
formula.DataItems[2].Sample = 3;
trans.Commit();
}
ed.WriteMessage("A new property set definition \"SampleWallPropertySetDefinition\" is created.\n");
ed.WriteMessage("It contains a formula definition named \"Wall Volume\".\n");
}
public static ObjectId CreateStairPropertySetDefinition(string psdName)
{
ObjectId psdId;
Database db = Application.DocumentManager.MdiActiveDocument.Database;
Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;
Autodesk.AutoCAD.DatabaseServices.TransactionManager tm = db.TransactionManager;
DictionaryPropertySetDefinitions dict = new DictionaryPropertySetDefinitions(db);
// Check for existing propert set definition ... If so just return its ObjectId.
psdId = GetPropertySetDefinitionIdByName(psdName);
if (psdId != ObjectId.Null)
{
ed.WriteMessage("\n Property set definition {0} exist", psdName);
return(psdId);
// check version and correctness not implemented
}
else
{
// Create the new property set definition;
PropertySetDefinition psd = new PropertySetDefinition();
psd.SetToStandard(db);
psd.SubSetDatabaseDefaults(db);
psd.AlternateName = psdName;
psd.IsLocked = true;
psd.IsVisible = false;
psd.IsWriteable = true;
// Setup an array of objects that this property set definition will apply to
System.Collections.Specialized.StringCollection appliesto = new System.Collections.Specialized.StringCollection
{
"AcDb3dSolid"
};
psd.SetAppliesToFilter(appliesto, false);
// Add the property set definition to the dictionary to make formula property work correctly
using (Transaction tr = tm.StartTransaction())
{
dict.AddNewRecord(psdName, psd);
tr.AddNewlyCreatedDBObject(psd, true);
// Invisible Properties (managed by app)
PropertyDefinition def;
def = new PropertyDefinition();
def.SetToStandard(db);
def.SubSetDatabaseDefaults(db);
def.Name = "_tread";
def.DataType = Autodesk.Aec.PropertyData.DataType.Real;
def.DefaultData = 0.32;
def.IsVisible = false;
psd.Definitions.Add(def);
def = new PropertyDefinition();
def.SetToStandard(db);
def.SubSetDatabaseDefaults(db);
def.Name = "_riser";
def.DataType = Autodesk.Aec.PropertyData.DataType.Real;
def.DefaultData = 0.15;
def.IsVisible = false;
psd.Definitions.Add(def);
def = new PropertyDefinition();
def.SetToStandard(db);
def.SubSetDatabaseDefaults(db);
def.Name = "_landing";
def.DataType = Autodesk.Aec.PropertyData.DataType.Real;
def.DefaultData = 1.1;
def.IsVisible = false;
psd.Definitions.Add(def);
def = new PropertyDefinition();
def.SetToStandard(db);
def.SubSetDatabaseDefaults(db);
def.Name = "_width";
def.DataType = Autodesk.Aec.PropertyData.DataType.Real;
def.DefaultData = 2.00;
def.IsVisible = false;
psd.Definitions.Add(def);
def = new PropertyDefinition();
def.SetToStandard(db);
def.SubSetDatabaseDefaults(db);
def.Name = "_slope";
def.DataType = Autodesk.Aec.PropertyData.DataType.Real;
def.DefaultData = 0.02;
def.IsVisible = false;
psd.Definitions.Add(def);
def = new PropertyDefinition();
def.SetToStandard(db);
def.SubSetDatabaseDefaults(db);
def.Name = "_steps";
def.DataType = Autodesk.Aec.PropertyData.DataType.Integer;
def.DefaultData = 5;
def.IsVisible = false;
psd.Definitions.Add(def);
// Visable properties (exposed to user)
def = new PropertyDefinition();
def.SetToStandard(db);
def.SubSetDatabaseDefaults(db);
def.Name = "name";
def.DataType = Autodesk.Aec.PropertyData.DataType.Text;
def.DefaultData = "Stair - ";
def.IsVisible = true;
psd.Definitions.Add(def);
// Visable read only properties (exposed to user)
PropertyDefinitionFormula formula;
// Property definition need to be added to the property set definition before setting formula string to the formula property
// steps
formula = new PropertyDefinitionFormula();
formula.SetToStandard(db);
formula.SubSetDatabaseDefaults(db);
formula.Name = "steps";
psd.Definitions.Add(formula);
formula.SetFormulaString("[_steps]");
// riser
formula = new PropertyDefinitionFormula();
formula.SetToStandard(db);
formula.SubSetDatabaseDefaults(db);
formula.Name = "riser";
psd.Definitions.Add(formula);
formula.SetFormulaString("[_riser]");
// tread
formula = new PropertyDefinitionFormula();
formula.SetToStandard(db);
formula.SubSetDatabaseDefaults(db);
formula.Name = "tread";
psd.Definitions.Add(formula);
formula.SetFormulaString("[_tread]");
// landing
formula = new PropertyDefinitionFormula();
formula.SetToStandard(db);
formula.SubSetDatabaseDefaults(db);
formula.Name = "landing";
psd.Definitions.Add(formula);
formula.SetFormulaString("[_landing]");
// width
formula = new PropertyDefinitionFormula();
formula.SetToStandard(db);
formula.SubSetDatabaseDefaults(db);
formula.Name = "width";
psd.Definitions.Add(formula);
formula.SetFormulaString("[_width]");
// slope
formula = new PropertyDefinitionFormula();
formula.SetToStandard(db);
formula.SubSetDatabaseDefaults(db);
formula.Name = "slope";
psd.Definitions.Add(formula);
formula.SetFormulaString("[_slope]");
tr.Commit();
psdId = psd.ObjectId;
return(psdId);
}
}
}
