AE中如何由IFeature 如何获取所对应的FeatureClass

先获取FeatureClass，然后遍历Map中所有的FeatureLayer，然后比较

FeatureClass与FeatureLayer所对应的FeatureClass。

下面的例子中是在编辑功能里，删除一个Feature后，所触发的事件。目的是找到该Feature所在的FullPathName,并且输出该对象的坐标和ID号。

private void OnDeleteFeatureMethod(object o)

      {          

        IFeature pFeature = o as IFeature;        

        IFeatureClass pFeatureClass = pFeature.Class as IFeatureClass;

      for (int i = 0; i < axMapControl1.Map.LayerCount;i++ )

      {

          IFeatureLayer iFeatureLayer = axMapControl1.get_Layer(i) as IFeatureLayer;

          IFeatureClass iFeatureCla = iFeatureLayer.FeatureClass;

           

              if (iFeatureCla == pFeatureClass)

              {

                  IWorkspace pWorkSpace = m_EngineEditor.EditWorkspace;

                  textBox3.Text += "操作的文件全路径:" + pWorkSpace.PathName + "\\" +      axMapControl1.get_Layer(i).Name + ".shp " + "\r\n";

                  break;

              }

      }

        if (pFeature.Shape.GeometryType == esriGeometryType.esriGeometryPoint)

        {

            IGeometry iGe = pFeature.Shape;

            IPoint ipo = new PointClass();

            ipo = iGe as IPoint;

            int a = 0;

            int b = 0;

            axMapControl1.FromMapPoint(ipo, ref a, ref  b);

            textBox3.Text += "删除的点的ID号：" + pFeature.OID + "，坐标：(" + a + "," + b + ")" + "\r\n";

        }

        else if (pFeature.Shape.GeometryType == esriGeometryType.esriGeometryPolygon)

        {

            textBox3.Text += "删除的多边形对象的ID号：" + pFeature.OID + "，坐标：";

            IPolygon pPolygon = (IPolygon)pFeature.Shape;

            int a = 0;

            int b = 0;

            //把该feature强制转换为一个点的集合，再取点的坐标

            IPointCollection pPointCollection = pPolygon as IPointCollection;

            for (int i = 0; i < pPointCollection.PointCount - 1; i++)

            {

                IPoint ipo = pPointCollection.get_Point(i);

                axMapControl1.FromMapPoint(ipo, ref a, ref  b);

                textBox3.Text += "(" + a + "," + b + ")" + "\t";

            }

            textBox3.Text += "\r\n";

        }

        else if (pFeature.Shape.GeometryType == esriGeometryType.esriGeometryPolyline)

        {

            textBox3.Text += "删除的线对象的ID号：" + pFeature.OID + "，其坐标：";

            IPolyline pPolygon = (IPolyline)pFeature.Shape;

            int a = 0;

            int b = 0;

            //把该feature强制转换为一个点的集合，再取点的坐标

            IPointCollection pPointCollection = pPolygon as IPointCollection;

            for (int i = 0; i < pPointCollection.PointCount; i++)

            {

                IPoint ipo = pPointCollection.get_Point(i);

                axMapControl1.FromMapPoint(ipo, ref a, ref  b);

                textBox3.Text += "(" + a + "," + b + ")" + "\t";

            }

            textBox3.Text += "\r\n";

        }

        axMapControl1.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);

      }