/// <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.Units units = document.GetUnits();
// show UI
using (UnitsForm displayForm = new UnitsForm(units))
{
DialogResult result = displayForm.ShowDialog();
if (DialogResult.OK == result)
{
using (Autodesk.Revit.DB.Transaction tran = new Autodesk.Revit.DB.Transaction(document, "SetUnits"))
{
tran.Start();
document.SetUnits(units);
tran.Commit();
}
}
else
{
return(Autodesk.Revit.UI.Result.Cancelled);
}
}
return(Result.Succeeded);
}
catch (Exception ex)
{
message = ex.Message;
return(Result.Failed);
}
}
/// <summary>
/// Initializes a new instance of ProjectUnitData
/// </summary>
/// <param name="units">an object of Autodesk.Revit.DB.Units</param>
public ProjectUnitData(Autodesk.Revit.DB.Units units)
{
m_unitType_formatOptions.Clear();
m_units = units;
foreach (Autodesk.Revit.DB.UnitType unittype in Enum.GetValues(typeof(
Autodesk.Revit.DB.UnitType)))
{
try
{
Autodesk.Revit.DB.FormatOptions formatOptions = m_units.GetFormatOptions(unittype);
m_unitType_formatOptions.Add(unittype, formatOptions);
m_unitType_label.Add(unittype, Autodesk.Revit.DB.LabelUtils.GetLabelFor(unittype));
}
catch
{
continue;
}
}
m_decimalSymbol = units.DecimalSymbol;
m_digitGroupingSymbol = units.DigitGroupingSymbol;
m_digitGroupingAmount = units.DigitGroupingAmount;
foreach (Autodesk.Revit.DB.DisplayUnitType displayunittype in Enum.GetValues(typeof(
Autodesk.Revit.DB.DisplayUnitType)))
{
try
{
m_displayUnitType_label.Add(displayunittype, Autodesk.Revit.DB.LabelUtils.GetLabelFor(displayunittype));
}
catch
{
continue;
}
}
foreach (Autodesk.Revit.DB.UnitSymbolType unitsymboltype in Enum.GetValues(typeof(
Autodesk.Revit.DB.UnitSymbolType)))
{
try
{
m_unitSymbolType_label.Add(unitsymboltype, Autodesk.Revit.DB.LabelUtils.GetLabelFor(unitsymboltype));
}
catch
{
if (unitsymboltype == Autodesk.Revit.DB.UnitSymbolType.UST_NONE)
{
m_unitSymbolType_label.Add(unitsymboltype, "(NONE)");
}
continue;
}
}
}