Geodatabase-Modify Field alias (Fields alias)

The following code demonstrates opening a feature class from a personal database and modifying a specified field alias, where it is important to note that it cannot be obtained directly from the Axmapcontrol in the engine, as

1  // get Ifeatureclass directly. 2 // ESRI. ArcGIS.Carto.ILayer lyr = mapctrl_main.get_layer (0); 3 // ESRI. ArcGIS.Carto.IFeatureLayer Flyr = (ESRI. ArcGIS.Carto.IFeatureLayer) Lyr; 4 // ESRI. ArcGIS.Geodatabase.IFeatureClass FC = Flyr. Featureclass;

This is not possible:

1 /// <summary>2         ///Modify the field alias.3         /// </summary>4         /// <param name= "Personalworkspacepath" >Personal database Path (can of course be a different type of database), such as "G:\doc\gis\1.400\data\pdb.mdb"</param>5         /// <param name= "Featureclassname" >feature class name, such as "Hyd1_4l_1"</param>6         /// <param name= "Orifieldname" >The original field alias, such as "Fnode_".</param>7         /// <param name= "Desfieldname" >The new field alias, such as "Fnode".</param>8         Private voidAlterfieldaliasname (stringPersonalworkspacepath,stringFeatureclassname,stringOrifieldname,stringdesfieldname) {9             //get Ifeatureclass through Ifeatureworkspace.TenESRI. ArcGIS.Geodatabase.IWorkspaceFactory WSF =NewESRI. ArcGIS.DataSourcesGDB.AccessWorkspaceFactoryClass (); OneESRI. ArcGIS.Geodatabase.IWorkspace ws = WSF. Openfromfile (Personalworkspacepath,0); AESRI. ArcGIS.Geodatabase.IFeatureWorkspace FWS =(ESRI. ArcGIS.Geodatabase.IFeatureWorkspace) ws; -ESRI. ArcGIS.Geodatabase.IFeatureClass FC =FWS. Openfeatureclass (featureclassname); -  theESRI. ArcGIS.Geodatabase.ITable T =(ESRI. ArcGIS.Geodatabase.ITable) FC; -             if(T.findfield (orifieldname) = =-1)//No field name specified. -                 return; -  +ESRI. ArcGIS.Geodatabase.IObjectClass objclass =(ESRI. ArcGIS.Geodatabase.IObjectClass) FC; -ESRI. ArcGIS.Geodatabase.ISchemaLock Slock =(ESRI. ArcGIS.Geodatabase.ISchemaLock) objclass; +             Try { A Slock. Changeschemalock (ESRI. ArcGIS.Geodatabase.esriSchemaLock.esriExclusiveSchemaLock); atESRI. ArcGIS.Geodatabase.IClassSchemaEdit Cschemaedit =(ESRI. ArcGIS.Geodatabase.IClassSchemaEdit) T; - cschemaedit.alterfieldaliasname (Orifieldname, desfieldname); -MessageBox.Show (" Done"); -             } -             Catch(System.Exception ex) { - MessageBox.Show (ex. Message); in             } -             finally { to                 if(Slock! =NULL) + Slock. Changeschemalock (ESRI. ArcGIS.Geodatabase.esriSchemaLock.esriSharedSchemaLock); -             } the}

Geodatabase-Modify Field alias (Fields alias)