原文链接：https://blog.csdn.net/kone0611/article/details/78530514

IFeatureClass.CreateFeature

​ 在这种方法最后需要加上IFeature.Store去提交创建的要素，本人认为这种方法相比下面一种方法更好些，因为Store的方法能够直接提交修改并在数据库中看到，不会因为其他复杂的操作影响数据入库。下面是在SDE库中创建IFeature的代码给大家参考一下:

IAoInitialize m_AoInitializa = new AoInitializeClass();
esriLicenseStatus pEsriLicenseStatus=m_AoInitializa.Initialize(esriLicenseProductCode.esriLicenseProductCodeEngineGeoDB);IPropertySet propSet = new PropertySetClass();
propSet.SetProperty("SERVER", "192.168.1.143");
propSet.SetProperty("INSTANCE", "5151");
propSet.SetProperty("USER", "myTestUser");
propSet.SetProperty("PASSWORD", "123456");
propSet.SetProperty("VERSION", "SDE.DEFAULT");IWorkspaceFactory pwf = new SdeWorkspaceFactoryClass();
IFeatureWorkspace pFeatureWorkspace= (IFeatureWorkspace)(pwf.Open(propSet, 0)) ;
IFeatureClassfeaClass=pFeatureWorkspace.OpenFeatureClass("要打开的Featureclass名字");IFeature feature = feaClass.CreateFeature();
feature.Shape=IGeometry;//(这里的IGeometry可以是IPolygon，IPolyline，IPoint)int fieldindex = feature.Fields.FindField("字段名");
feature.set_Value(fieldindex, "字段值");
feature.Store();

IFeatureClass.CreateFeatureBuffer

​ 这个方法采用插入游标（Insert Cursors）的方法，在创建简单数据的时候效率会比第一种方法更快些，但是在ESRI的官网上提到使用IFeatureCursor.InsertFeature方法时，复杂的操作和各种事件的触发不能够保证。根据自己实际操作的心得，有时候会出现数据创建延时，明明代码已经通过了，但数据库中的数据要过很久才能显示出来，甚至有时候都显示不出来。这个客户肯定接受不了这种没有保证的数据创建。还有一点，在使用SDE库时，这种方法只适用于没有注册版本的dateset或featureclass

IFeatureCursor feaCursor = feaClass.Insert(true);
IFeatureBuffer feaBuffer = feaClass.CreateFeatureBuffer();
feaBuffer.Shape = IGeometry;//(这里的IGeometry可以是IPolygon，IPolyline，IPoint)int fieldindex = feaBuffer.Fields.FindField("字段名");
if (fieldindex >= 0)
{                              feaBuffer.set_Value(fieldindex, "字段值" );
}feaCursor.InsertFeature(feaBuffer);

使用IFeatureClassWriter接口

public void DrawPoint(ILayer pLayer,double X,double Y)
{IFeatureLayer pFeatureLayer = pLayer as IFeatureLayer;IFeatureClass pFeatureClass = pFeatureLayer.FeatureClass;IFeatureClassWrite fr = pFeatureClass as IFeatureClassWrite;IFeature pFeature;IPoint pPoint;//pWorkspaceEdit.StartEditing(true);pWorkspaceEdit.StartEditOperation();pFeature = pFeatureClass.CreateFeature();pPoint = new PointClass();pPoint.PutCoords(X, Y);pFeature.Shape = pPoint;fr.WriteFeature(pFeature);pWorkspaceEdit.StopEditOperation();
}