C# Solidworks二次开发：获取唯一ID的API详解

大家好，今天要介绍的是关于solidworks中可以获取对象唯一ID的几种API，获取唯一ID的API有如下几种：

（1）第一种是GetID Method (IComponent2)，其含义为获取每个组件的唯一ID。

下面是API中的使用例子：

using SolidWorks.Interop.sldworks;
using SolidWorks.Interop.swconst;
using System.Runtime.InteropServices;
using System;
using System.Diagnostics;namespace Macro1CSharp.csproj
{public partial class SolidWorksMacro{public void Main(){ModelDoc2 swModel = default(ModelDoc2);ConfigurationManager swConfMgr = default(ConfigurationManager);Configuration swConf = default(Configuration);Component2 swRootComp = default(Component2);swModel = (ModelDoc2)swApp.ActiveDoc;swConfMgr = (ConfigurationManager)swModel.ConfigurationManager;swConf = (Configuration)swConfMgr.ActiveConfiguration;swRootComp = (Component2)swConf.GetRootComponent3(true);Debug.Print("File = " + swModel.GetPathName());if (swModel.GetType() == (int)swDocumentTypes_e.swDocASSEMBLY){TraverseComponent(swRootComp, 1);}}public void TraverseComponent(Component2 swComp, int nLevel){object[] vChildComp = null;Component2 swChildComp = default(Component2);string sPadStr = "";int i = 0;for (i = 0; i <= nLevel - 1; i++){sPadStr = sPadStr + "  ";}vChildComp = (object[])swComp.GetChildren();for (i = 0; i <= vChildComp.Length - 1; i++){swChildComp = (Component2)vChildComp[i];Debug.Print(sPadStr + "Component name: " + swChildComp.Name2 + ", Component ID: " + swChildComp.GetID());TraverseComponent(swChildComp, nLevel + 1);}}/// <summary>///  The SldWorks swApp variable is pre-assigned for you./// </summary>public SldWorks swApp;}
}

（2）第二种为GetID Method (IEdge)，其含义为获取实体中每条边的唯一ID。

（3）第三种为GetID Method (IFeature)，其含义为获取每个特征的唯一ID。

其例子如下所示：

using SolidWorks.Interop.sldworks;
using SolidWorks.Interop.swconst;
using System;
using System.Diagnostics;

namespace Instant3DFeatureCSharp.csproj
{

    partial class SolidWorksMacro
    {

        public void Main()
        {
            ModelDoc2 swModel = default(ModelDoc2);
            Feature swFeature = default(Feature);
            string fileName = null;
            int errors = 0;
            int warnings = 0;

            fileName = "C:\\Users\\Public\\Documents\\SOLIDWORKS\\SOLIDWORKS 2018\\samples\\tutorial\\api\\block.sldprt";
            swModel = (ModelDoc2)swApp.OpenDoc6(fileName, (int)swDocumentTypes_e.swDocPART, (int)swOpenDocOptions_e.swOpenDocOptions_Silent, "", ref errors, ref warnings);

            swFeature = (Feature)swModel.FirstFeature();

            SelectFeat(swFeature);

        }

        public bool SelectFeat(Feature featureTemp)
        {
            while ((featureTemp != null))
            {
                string featureName = null;
                featureName = featureTemp.GetTypeName2();

                Debug.Print(featureName);

                // Instant3D features are ICE features
                if (featureName == "ICE")
                {
                    Debug.Print("   Type:     " + featureTemp.GetTypeName());
                    Debug.Print("   ID:     " + featureTemp.GetID());
                }

                featureTemp = (Feature)featureTemp.GetNextFeature();
            }
            return true;
        }

        /// <summary>
        /// The SldWorks swApp variable is pre-assigned for you.
        /// </summary>

        public SldWorks swApp;

    }
}