Create Method (Document, ElementId, Reference, Boolean, TagMode, TagOrientation, XYZ)
Places a tag on an element or subelement.

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 22.0.0.0 (22.1.1.0)
Since:  2018

Syntax

C#
public static IndependentTag Create(
	Document document,
	ElementId ownerDBViewId,
	Reference referenceToTag,
	bool addLeader,
	TagMode tagMode,
	TagOrientation tagOrientation,
	XYZ pnt
)
Visual Basic
Public Shared Function Create ( _
	document As Document, _
	ownerDBViewId As ElementId, _
	referenceToTag As Reference, _
	addLeader As Boolean, _
	tagMode As TagMode, _
	tagOrientation As TagOrientation, _
	pnt As XYZ _
) As IndependentTag
Visual C++
public:
static IndependentTag^ Create(
	Document^ document, 
	ElementId^ ownerDBViewId, 
	Reference^ referenceToTag, 
	bool addLeader, 
	TagMode tagMode, 
	TagOrientation tagOrientation, 
	XYZ^ pnt
)

Parameters

document
Type: Autodesk.Revit.DB..::..Document
The document to which the tag will be added.
ownerDBViewId
Type: Autodesk.Revit.DB..::..ElementId
The view in which the tag will be visible.
referenceToTag
Type: Autodesk.Revit.DB..::..Reference
The host reference of the tag. The reference can be to an element or subelement in a local or linked document.
addLeader
Type: System..::..Boolean
When true, the tag will be created with a straight leader with an attached end.
tagMode
Type: Autodesk.Revit.DB..::..TagMode
This argument determines the type of tag that will be created. Tag by category, multi-category tag, and material tag are allowed.
tagOrientation
Type: Autodesk.Revit.DB..::..TagOrientation
The orientation of the tag's head.
pnt
Type: Autodesk.Revit.DB..::..XYZ
For tags without leaders, this point is the position of the tag head. For tags with leaders, this point is the end point of the leader, and a leader of default length will be created from this point to the tag head.

Return Value

If successful the new tag is returned.

Remarks

Single category tags, multi-category tags and material tags can be placed.

Examples

CopyC#
private IndependentTag CreateIndependentTag(Autodesk.Revit.DB.Document document, Wall wall)
{
    // make sure active view is not a 3D view
    Autodesk.Revit.DB.View view = document.ActiveView;

    // define tag mode and tag orientation for new tag
    TagMode tagMode = TagMode.TM_ADDBY_CATEGORY;
    TagOrientation tagorn = TagOrientation.Horizontal;

    // Add the tag to the middle of the wall
    LocationCurve wallLoc = wall.Location as LocationCurve;
    XYZ wallStart = wallLoc.Curve.GetEndPoint(0);
    XYZ wallEnd = wallLoc.Curve.GetEndPoint(1);
    XYZ wallMid = wallLoc.Curve.Evaluate(0.5, true);
    Reference wallRef = new Reference(wall);

    IndependentTag newTag = IndependentTag.Create(document, view.Id,  wallRef, true, tagMode, tagorn, wallMid);
    if (null == newTag)
    {
        throw new Exception("Create IndependentTag Failed.");
    }

    // newTag.TagText is read-only, so we change the Type Mark type parameter to 
    // set the tag text.  The label parameter for the tag family determines
    // what type parameter is used for the tag text.

    WallType type = wall.WallType;

    Parameter foundParameter = type.LookupParameter("Type Mark");
    bool result = foundParameter.Set("Hello");

    // set leader mode free
    // otherwise leader end point move with elbow point

    newTag.LeaderEndCondition = LeaderEndCondition.Free;
    XYZ elbowPnt = wallMid + new XYZ(5.0, 5.0, 0.0);
    newTag.SetLeaderElbow(wallRef, elbowPnt);
    XYZ headerPnt = wallMid + new XYZ(10.0, 10.0, 0.0);
    newTag.TagHeadPosition = headerPnt;

    // change tag orientation to AnyModelDirection
    newTag.TagOrientation = TagOrientation.AnyModelDirection;

    // change tag rotation angle to PI/4
    newTag.RotationAngle = Math.PI / 4;

    return newTag;
}
CopyVB.NET
Private Function CreateIndependentTag(document As Autodesk.Revit.DB.Document, wall As Wall) As IndependentTag
      ' make sure active view is not a 3D view
      Dim view As Autodesk.Revit.DB.View = document.ActiveView

      ' define tag mode and tag orientation for new tag
      Dim tagMode__1 As TagMode = TagMode.TM_ADDBY_CATEGORY
      Dim tagorn As TagOrientation = TagOrientation.Horizontal

      ' Add the tag to the middle of the wall
      Dim wallLoc As LocationCurve = TryCast(wall.Location, LocationCurve)
      Dim wallStart As XYZ = wallLoc.Curve.GetEndPoint(0)
      Dim wallEnd As XYZ = wallLoc.Curve.GetEndPoint(1)
      Dim wallMid As XYZ = wallLoc.Curve.Evaluate(0.5, True)
   Dim WallRef As Reference = New Reference(wall)

   Dim newTag As IndependentTag = IndependentTag.Create(document, view.Id, wallRef, True, tagMode__1, tagorn, wallMid)
      If newTag Is Nothing Then
          Throw New Exception("Create IndependentTag Failed.")
      End If

      ' newTag.TagText is read-only, so we change the Type Mark type parameter to 
      ' set the tag text.  The label parameter for the tag family determines
      ' what type parameter is used for the tag text.


      Dim type As WallType = wall.WallType

      Dim foundParameter As Parameter = type.LookupParameter("Type Mark")
      Dim result As Boolean = foundParameter.[Set]("Hello")

      ' set leader mode free
      ' otherwise leader end point move with elbow point


      newTag.LeaderEndCondition = LeaderEndCondition.Free
      Dim elbowPnt As XYZ = wallMid + New XYZ(5.0, 5.0, 0.0)
      newTag.SetLeaderElbow(WallRef, elbowPnt)
      Dim headerPnt As XYZ = wallMid + New XYZ(10.0, 10.0, 0.0)
      newTag.TagHeadPosition = headerPnt

      ' change tag orientation to AnyModelDirection
      newTag.TagOrientation = TagOrientation.AnyModelDirection

      ' change tag rotation angle to PI/4
      newTag.RotationAngle = Math.PI / 4

      Return newTag
  End Function

Exceptions

ExceptionCondition
Autodesk.Revit.Exceptions..::..ArgumentException The ElementId ownerDBViewId does not correspond to a View. -or- The ElementId ownerDBViewId is a view template. -or- The ElementId ownerDBViewId is a perspective view. -or- The 3D view ownerDBViewId is not locked. -or- The reference can not be tagged.
Autodesk.Revit.Exceptions..::..ArgumentNullException A non-optional argument was null
Autodesk.Revit.Exceptions..::..ArgumentOutOfRangeException A value passed for an enumeration argument is not a member of that enumeration
Autodesk.Revit.Exceptions..::..InternalException Tag creation failed.
Autodesk.Revit.Exceptions..::..InvalidOperationException There is no loaded tag type that can be used when tagging referenceToTag with tagMode.
Autodesk.Revit.Exceptions..::..ModificationForbiddenException The document is in failure mode: an operation has failed, and Revit requires the user to either cancel the operation or fix the problem (usually by deleting certain elements). -or- The document is being loaded, or is in the midst of another sensitive process.
Autodesk.Revit.Exceptions..::..ModificationOutsideTransactionException The document has no open transaction.

See Also

M:Autodesk.Revit.DB.IndependentTag.Create(Autodesk.Revit.DB.Document,Autodesk.Revit.DB.ElementId,Autodesk.Revit.DB.Reference,System.Boolean,Autodesk.Revit.DB.TagMode,Autodesk.Revit.DB.TagOrientation,Autodesk.Revit.DB.XYZ)