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转载的原文 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); 
}

没有整理与归纳的知识，一文不值！高度概括与梳理的知识，才是自己真正的知识与技能。永远不要让自己的自由、好奇、充满创造力的想法被现实的框架所束缚，让创造力自由成长吧！多花时间，关心他（她）人，正如别人所关心你的。理想的腾飞与实现，没有别人的支持与帮助，是万万不能的。

本文转自wenglabs博客园博客，原文链接：http://www.cnblogs.com/arxive/p/5903577.html，如需转载请自行联系原作者

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