ArcGIS Runtime SDK for WPF - Library Reference
LengthsAsync(IList<Graphic>,Nullable<LinearUnit>,CalculationType,Object) Method
See Also 
ESRI.ArcGIS.Client.Tasks Namespace > GeometryService Class > LengthsAsync Method : LengthsAsync(IList<Graphic>,Nullable<LinearUnit>,CalculationType,Object) Method

graphics
The graphics used to calculate lengths.
lengthUnit
The length unit in which perimeters of polygons will be calculated. If unit is not specified, the units are derived from the Spatial Reference of the geometry.
calculationType
The type of calculation to perform. e.g.(Planar,Geodesic,PreserveShape).
userToken
A user-defined object that is passed to the method invoked.
Calculates the lengths of each specified polyline. Raises the LengthsCompleted event on success, or the TaskBase.Failed event on failure.

Syntax

Visual Basic (Declaration) 
Public Overloads Sub LengthsAsync( _
   ByVal graphics As IList(Of Graphic), _
   ByVal lengthUnit As Nullable(Of LinearUnit), _
   ByVal calculationType As CalculationType, _
   Optional ByVal userToken As Object _
) 
C# 
public void LengthsAsync( 
   IList<Graphic> graphics,
   Nullable<LinearUnit> lengthUnit,
   CalculationType calculationType,
   object userToken
)

Remarks

CalculationType.Planar is supported in ArcGIS Server v9.x+ services. CalculationType.Geodesic is supported in ArcGIS Server v10.0+ services. CalculationType.PreseverShape is supported in ArcGIS Server v10.1+ services.

Parameters

graphics
The graphics used to calculate lengths.
lengthUnit
The length unit in which perimeters of polygons will be calculated. If unit is not specified, the units are derived from the Spatial Reference of the geometry.
calculationType
The type of calculation to perform. e.g.(Planar,Geodesic,PreserveShape).
userToken
A user-defined object that is passed to the method invoked.

Requirements

Target Platforms: Windows XP Professional, Windows Server 2003 family, Windows Vista, Windows Server 2008 family, Windows 7, Windows 8

See Also

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