Burst error: The Geometry has no Z values

ArcGIS Add Map Callout, burst error: The Geometry has no Z values

Here's how to fix it:

public bool Addfeature (ESRI.            ArcGIS.Geometry.IGeometry geometry,system.collections.generic.dictionary<string,object> properties) { try {ESRI.                 ArcGIS.Geodatabase.IFeature feature = _featurelayer.featureclass.createfeature ();                int index; index = feature.                Fields.findfield ("Shape");                Igeometrydef Pgeometrydef; Pgeometrydef = feature. Fields.get_field (Index).                 Geometrydef as Igeometrydef;                    if (Pgeometrydef.hasz) {Izaware Pzaware = (izaware) geometry;                    Pzaware.zaware = true;                    IZ IZ1 = (IZ) geometry; Iz1.  Setconstantz (0);                    Set the z value to 0 IPoint point = (IPoint) geometry; Point.                Z = 0;                    } else {Izaware Pzaware = (izaware) geometry;                Pzaware.zaware = false;   }             if (pgeometrydef.hasm) {Imaware Pmaware = (imaware) geometry;                Pmaware.maware = true;                    } else {Imaware Pmaware = (imaware) geometry;                Pmaware.maware = false; } feature.                Shape = geometry; foreach (String key in properties.                Keys) {setfeatueproperty (feature, Key, Properties[key]); } feature.                  Store ();            return true;            } catch (Exception ee) {return false; }        }

　　

Burst error: The Geometry has no Z values