public void ChangeAlignmentLabelStyle()
{
PromptEntityOptions options = new PromptEntityOptions("\nSelect Alignment: ");
options.SetRejectMessage("\nThe selected object is not a Alignment!");
options.AddAllowedClass(typeof(Alignment), false);
PromptEntityResult pres = Active.Editor.GetEntity(options);
if (pres.Status != PromptStatus.OK)
{
return;
}
using (Transaction tr = HostApplicationServices.WorkingDatabase.TransactionManager.StartTransaction())
{
try
{
Alignment align = (Alignment)tr.GetObject(pres.ObjectId, OpenMode.ForRead);
//ObjectIdCollection ids = align.GetAlignmentLabelIds();
ObjectIdCollection ids = align.GetAlignmentLabelGroupIds();
foreach (ObjectId id in ids)
{
AlignmentLabelGroup style = (AlignmentLabelGroup)tr.GetObject(id, OpenMode.ForRead);
Active.Editor.WriteMessage("\n " + style.ToString());
//result:
//Autodesk.Civil.DatabaseServices.AlignmentDesignSpeedLabelGroup
//Autodesk.Civil.DatabaseServices.AlignmentGeometryPointLabelGroup
//Autodesk.Civil.DatabaseServices.AlignmentMinorStationLabelGroup
//Autodesk.Civil.DatabaseServices.AlignmentStationEquationLabelGroup
//Autodesk.Civil.DatabaseServices.AlignmentStationLabelGroup
//LabelType lblType = (LabelType)tr.GetObject(style.ObjectId, OpenMode.ForRead); //Autodesk.Civil.DatabaseServices.LabelType
//LabelStylesAlignmentRoot root = (LabelStylesRoot)tr.GetObject(id, OpenMode.ForRead);
}
//Active.Editor.WriteMessage("\nAlignment Curve Label Style Name (before Change) : " + alignLabelStyle.Name);
//// The following Style Name is specific to Tutorial DWG file - "Labels-6a.dwg"
//alignLabelStyle.Name = "Design Data";
//Active.Editor.WriteMessage("\nAlignment Curve Label Style Name (after Change) : " + alignLabelStyle.Name);
tr.Commit();
}
catch (Autodesk.AutoCAD.Runtime.Exception ex)
{
Active.Editor.WriteMessage("\n Exception message :" + ex.Message);
}
}
}
