C# SolidWorks 二次开发 API ---遍历零件特征

下面是如何遍历零件特征：

 private void Btn_Traverse_Feature_Click(object sender, EventArgs e)
        {
            ISldWorks swApp = Utility.ConnectToSolidWorks();

            if (swApp != null)
            {
                ModelDoc2 swModel = (ModelDoc2)swApp.ActiveDoc;

                //第一个特征
                Feature swFeat = (Feature)swModel.FirstFeature();

                //遍历
                Utility.TraverseFeatures(swFeat, true);
            }
        }



//Utility.cs

        /// 

        /// 遍历特征
        /// 
        /// 
        /// 
        public static void TraverseFeatures(Feature thisFeat, bool isTopLevel)
        {
            Feature curFeat = default(Feature);
            curFeat = thisFeat;

            while ((curFeat != null))
            {
                //输出特征名称
                Debug.Print(curFeat.Name);

                Feature subfeat = default(Feature);
                subfeat = (Feature)curFeat.GetFirstSubFeature();

                while ((subfeat != null))
                {
                    TraverseFeatures(subfeat, false);
                    Feature nextSubFeat = default(Feature);
                    nextSubFeat = (Feature)subfeat.GetNextSubFeature();
                    subfeat = nextSubFeat;
                    nextSubFeat = null;
                }

                subfeat = null;

                Feature nextFeat = default(Feature);

                if (isTopLevel)
                {
                    nextFeat = (Feature)curFeat.GetNextFeature();
                }
                else
                {
                    nextFeat = null;
                }

                curFeat = nextFeat;
                nextFeat = null;
            }
        }