arcgis engine中删除指定元素

在 ArcGIS Engine 中删除指定元素，可以使用以下方法：

1. 获取要素图层对象：

IFeatureLayer featureLayer = mapControl1.Map.get_Layer(layerIndex) as IFeatureLayer;

2. 根据要素 ID 获取要素对象：

IFeature feature = featureLayer.FeatureClass.GetFeature(featureID);

3. 使用编辑对象获取编辑工作空间：

IWorkspaceEdit workspaceEdit = (IWorkspaceEdit)((IDataset)featureLayer.FeatureClass).Workspace;

4. 启动编辑操作：

workspaceEdit.StartEditing(true);
workspaceEdit.StartEditOperation();

5. 删除要素对象：

feature.Delete();

6. 结束编辑操作：

workspaceEdit.StopEditOperation();
workspaceEdit.StopEditing(true);

完整代码示例：

IFeatureLayer featureLayer = mapControl1.Map.get_Layer(layerIndex) as IFeatureLayer;
IFeature feature = featureLayer.FeatureClass.GetFeature(featureID);
IWorkspaceEdit workspaceEdit = (IWorkspaceEdit)((IDataset)featureLayer.FeatureClass).Workspace;
workspaceEdit.StartEditing(true);
workspaceEdit.StartEditOperation();
feature.Delete();
workspaceEdit.StopEditOperation();
workspaceEdit.StopEditing(true);