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IsLeaderValid Method

Datum Plane Is Leader Valid Method

Identifies if the leader valid or not for this DatumPlane. This method does not apply to Reference planes (which do not support leaders).

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)
Syntax 
public bool IsLeaderValid(
	DatumEnds datumEnd,
	View view,
	Leader leader
)

Parameters

datumEnd DatumEnds
The end of the datum plane.
view View
The view on which the DatumPlane shows.
leader Leader
The Leader for setting the datum plane.

Return Value

Boolean
True if the leader is valid for set leader, false otherwise.
Exceptions
Exception Condition
ArgumentNullException A non-optional argument was null
ArgumentOutOfRangeException A value passed for an enumeration argument is not a member of that enumeration
InvalidOperationException This datum plane has no leaders. -or- The DatumPlane should not have a leader.
Remarks
If the view or leader is null, it will throw ArgumentNullException; A valid leader meets the following conditions:
  • The leader's End, Elbow and Anchor should lie in the View's plane
  • The End of the leader should be on the datum plane's curve(s)
  • The Elbow of the leader should be between the End and Anchor
See Also