The Geometry has no Z values 解决办法

在创建要素时，简单的IFeatureClass.CreateFeature之后，然后把IGeometry对象赋给Feature.shape，会引发“The Geometry has no Z values”的错误提示。类似的错误在做地图标注过程中也会出现。

 /// <summary>        /// 设置Z值和M值，解决The Geometry has no Z values错误        /// </summary>        /// <param name="pF">要素</param>        /// <param name="pGeo">几何</param>        public static void SetZValue(IFeature pF, IGeometry pGeo)        {            int index;            index = pF.Fields.FindField("Shape");            IGeometryDef pGeometryDef;            pGeometryDef = pF.Fields.get_Field(index).GeometryDef as IGeometryDef;            if (pGeometryDef.HasZ)            {                IZAware pZAware = (IZAware)pGeo;                pZAware.ZAware = true;                //IZ iz1 = (IZ)pGeo;                //iz1.SetConstantZ(0);  //将Z值设置为0                //在ArcEngine10.2中用下面的两行代码来设置                IPoint point = (IPoint)pGeo;                point.Z = 0;            }            else            {                IZAware pZAware = (IZAware)pGeo;                pZAware.ZAware = false;            }            //M值            if (pGeometryDef.HasM)            {                IMAware pMAware = (IMAware)pGeo;                pMAware.MAware = true;            }            else            {                IMAware pMAware = (IMAware)pGeo;                pMAware.MAware = false;            }        }