Civil3DToolChest

 public void SetAmbientSettingsElevation(Autodesk.Civil.LinearUnitType unit, int precision, Autodesk.Civil.RoundingType rounding, Autodesk.Civil.SignType sign)
   {
     civilDoc.Settings.DrawingSettings.AmbientSettings.Elevation.Unit.Value = unit;
     civilDoc.Settings.DrawingSettings.AmbientSettings.Elevation.Precision.Value = precision;
     civilDoc.Settings.DrawingSettings.AmbientSettings.Elevation.Rounding.Value = rounding;
     civilDoc.Settings.DrawingSettings.AmbientSettings.Elevation.Sign.Value = sign;
   }

Civil3DToolChest

 public void setAlignmentPointEntityData(Autodesk.Civil.Land.Settings.AbbreviationAlignmentEnhancedType abvtype, string abv)
 {
    civilDoc.Settings.DrawingSettings.AbbreviationsSettings.AlignmentGeoPointEntityData.SetAlignmentEnhancedAbbreviation(abvtype, abv);
 }

 public void setSuperElevationAbv(Autodesk.Civil.Land.Settings.AbbreviationSuperelevationType abvType, string abv)
  {
     civilDoc.Settings.DrawingSettings.AbbreviationsSettings.Superelevation.SetSuperelevationAbbreviation(abvType, abv);
  }

Civil3DToolChest

 public void setAlignmnetAbv(Autodesk.Civil.Land.Settings.AbbreviationAlignmentType abvType, string abv)
        {
            civilDoc.Settings.DrawingSettings.AbbreviationsSettings.AlignmentGeoPointText.SetAlignmentAbbreviation(abvType, abv);
        }

Civil3DToolChest

        public void setInfinityAbv(string abv)
        {
            civilDoc.Settings.DrawingSettings.AbbreviationsSettings.GeneralText.Infinity = abv;
        }

        public void setLeftAbv(string abv)
        {
            civilDoc.Settings.DrawingSettings.AbbreviationsSettings.GeneralText.Left = abv;
        }

Civil3DToolChest

        public void SetAlignmentLayer(string layerName, Autodesk.Civil.Settings.ObjectLayerModifierType modifierType, string modifierValue, Boolean locked)
        {
            civilDoc.Settings.DrawingSettings.ObjectLayerSettings.GetObjectLayerSetting(Autodesk.Civil.Settings.SettingsObjectLayerType.Alignment).LayerName = layerName;
            civilDoc.Settings.DrawingSettings.ObjectLayerSettings.GetObjectLayerSetting(Autodesk.Civil.Settings.SettingsObjectLayerType.Alignment).Modifier = modifierType;
            civilDoc.Settings.DrawingSettings.ObjectLayerSettings.GetObjectLayerSetting(Autodesk.Civil.Settings.SettingsObjectLayerType.Alignment).ModifierValue = modifierValue;
            civilDoc.Settings.DrawingSettings.ObjectLayerSettings.GetObjectLayerSetting(Autodesk.Civil.Settings.SettingsObjectLayerType.Alignment).Locked = locked;
        }

        public void SetAlignmentLayer(string layerName)
        {

Civil3DToolChest

       #region Object Layer Settings

        public void SetAlignmentLayer(string layerName, Autodesk.Civil.Settings.ObjectLayerModifierType modifierType, string modifierValue, Boolean locked)
        {
            civilDoc.Settings.DrawingSettings.ObjectLayerSettings.GetObjectLayerSetting(Autodesk.Civil.Settings.SettingsObjectLayerType.Alignment).LayerName = layerName;
            civilDoc.Settings.DrawingSettings.ObjectLayerSettings.GetObjectLayerSetting(Autodesk.Civil.Settings.SettingsObjectLayerType.Alignment).Modifier = modifierType;
            civilDoc.Settings.DrawingSettings.ObjectLayerSettings.GetObjectLayerSetting(Autodesk.Civil.Settings.SettingsObjectLayerType.Alignment).ModifierValue = modifierValue;
            civilDoc.Settings.DrawingSettings.ObjectLayerSettings.GetObjectLayerSetting(Autodesk.Civil.Settings.SettingsObjectLayerType.Alignment).Locked = locked;
        }

Civil3DToolChest

[CommandMethod("addGeneralLabelStyle")]
public void addGeneralLabelStyle() // This method can have any name
{
  ObjectId labelStyleId = getGeneralLabelStyle("Asphalt");
  if (labelStyleId == ObjectId.Null)
  {
    labelStyleId = addGeneralLabelStyel("Asphalt");
  }
  setGeneralProperties(labelStyleId, "SHR", "C-ROAD-LABL", true, Autodesk.Civil.OrientationReferenceType.View, true, 110, true);
  setTextComponentContents(labelStyleId, "ASPHALT", "Asphalt");            

Civil3DToolChest

public void setTextComponentContents(ObjectIdCollection componentIds, string contentString, string componentName)
{
  Document acadDoc = Application.DocumentManager.MdiActiveDocument;
  CivilDocument civilDoc = CivilApplication.ActiveDocument;
  using (Transaction trans = acadDoc.Database.TransactionManager.StartOpenCloseTransaction())
  {
    foreach (ObjectId id in componentIds)
    {
      LabelStyleTextComponent textComponent = trans.GetObject(id, OpenMode.ForWrite) as LabelStyleTextComponent;
      textComponent.Name = componentName;

Civil3DToolChest

public void setTextComponentContents(ObjectId labelStyleId, string contentString, string componentName)
{
  Document acadDoc = Application.DocumentManager.MdiActiveDocument;
  CivilDocument civilDoc = CivilApplication.ActiveDocument;
  using (Transaction trans = acadDoc.Database.TransactionManager.StartOpenCloseTransaction())
  {
    LabelStyle lblStyle = trans.GetObject(labelStyleId, OpenMode.ForWrite) as LabelStyle;
    LabelStyleTextComponent textComponent = trans.GetObject(lblStyle.GetComponents(LabelStyleComponentType.Text)[0], OpenMode.ForWrite) as LabelStyleTextComponent;
    textComponent.Name = componentName;
    textComponent.Text.Contents.Value = contentString;

Civil3DToolChest

public ObjectIdCollection getLabelStyleComponentIds(ObjectId labelStyleId, LabelStyleComponentType componentType)
{
  ObjectIdCollection componentIds = new ObjectIdCollection();
  Document acadDoc = Application.DocumentManager.MdiActiveDocument;
  CivilDocument civilDoc = CivilApplication.ActiveDocument;
  using (Transaction trans = acadDoc.Database.TransactionManager.StartOpenCloseTransaction())
  {
    LabelStyle lblstyle = trans.GetObject(labelStyleId, OpenMode.ForRead) as LabelStyle;
    componentIds = lblstyle.GetComponents(componentType);
    trans.Commit();