A reference to the default shape for the feature.
[Visual Basic .NET]
Public Property Shape As IGeometry
[C#]
public IGeometry Shape {get; set;}
[C++]
HRESULT get_Shape(
  IGeometry** Shape
);
[C++]
HRESULT putref_Shape(
  IGeometry* Shape
);
[C++]
Parameters
Shape [out, retval]
  Shape is a parameter of type IGeometry
Shape [in]
  Shape is a parameter of type IGeometry
Product Availability
Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server. 
Remarks
The basic process to change the shape of a feature is:
1) Get the feature's existing geometry through IFeature.ShapeCopy or create a new geometry
2) Modify the geometry
3) Set the feature's geometry using IFeature.Shape
4) Store the feature
All edits to features that participate in a Topology or Geometric Network must be performed within an edit session and bracketed within an edit operation.
See Also
IFeature Interface 
.NET Snippets
Create Animation from Path | 
Create Graphic Buffers around Selected Features | 
Flip Line Direction | 
Zoom to Selected Globe Features 
.NET Samples
Curve conversion add-in (Code Files: 
CurveConversionDockWin) | 
Custom reshape polyline edit task (Code Files: 
ReshapePolylineEditTask) | 
Points along line construction tool (Code Files: 
PointsAlongLineForm) | 
ViperPin tool (Code Files: 
ViperPinForm) | 
Tabbed feature inspector (Code Files: 
TabbedInspector) | 
Executing geoprocessing tools in the background (Code Files: 
RunGPForm) | 
Calculate area geoprocessing function tool (Code Files: 
CalculateAreaFunction) | 
Move a graphic along a path in ArcMap (Code Files: 
cmdMoveGraphicAlongPath) | 
ArcGIS Network Analyst extension barrier location editor (Code Files: 
EditorForm) | 
Create camera flyby from path (Code Files: 
frmCameraPath) | 
Tabbed feature inspector (Code Files: 
ObjectInspector) 
.NET Related Topics
Updating features | 
3DAnalyst | 
Creating features | 
Executing spatial queries | 
Geodatabase API best practices | 
How to add point IDs to a polyline | 
How to animate the camera along a path (line feature) in globe | 
How to create a union of several polygons | 
How to merge conflicting geometries during a reconcile | 
How to zoom to selected features in globe | 
Using feature templates