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Geodatabase - 修改字段别名(Field Alias)

2024-07-29 23:32:31   222人阅读

　　以下代码演示的是通过个人数据库打开要素类,并对指定的字段别名进行修改,其中,需要注意的是,不能通过Engine中的AxMapControl直接获得,如

1  //直接获得IFeatureClass.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;

　　这样是不可以的:

 1 /// <summary> 2         /// 修改字段别名. 3         /// </summary> 4         /// <param name="personalWorkspacePath">个人数据库路径(当然可以为其他类型数据库),如"G:\doc\gis\1.400\data\pdb.mdb"</param> 5         /// <param name="featureClassName">要素类名,如"hyd1_4l_1"</param> 6         /// <param name="oriFieldName">原字段别名,如"FNODE_".</param> 7         /// <param name="desFieldName">新字段别名,如"fnode".</param> 8         private void AlterFieldAliasName(string personalWorkspacePath, string featureClassName, string oriFieldName, string desFieldName) { 9             //通过IFeatureWorkspace获得IFeatureClass.10             ESRI.ArcGIS.Geodatabase.IWorkspaceFactory wsf = new ESRI.ArcGIS.DataSourcesGDB.AccessWorkspaceFactoryClass();11             ESRI.ArcGIS.Geodatabase.IWorkspace ws = wsf.OpenFromFile(personalWorkspacePath, 0);12             ESRI.ArcGIS.Geodatabase.IFeatureWorkspace fws = (ESRI.ArcGIS.Geodatabase.IFeatureWorkspace)ws;13             ESRI.ArcGIS.Geodatabase.IFeatureClass fc = fws.OpenFeatureClass(featureClassName);14 15             ESRI.ArcGIS.Geodatabase.ITable t = (ESRI.ArcGIS.Geodatabase.ITable)fc;16             if (t.FindField(oriFieldName) == -1)    //无指定字段名.17                 return;18 19             ESRI.ArcGIS.Geodatabase.IObjectClass objClass = (ESRI.ArcGIS.Geodatabase.IObjectClass)fc;20             ESRI.ArcGIS.Geodatabase.ISchemaLock slock = (ESRI.ArcGIS.Geodatabase.ISchemaLock)objClass;21             try {22                 slock.ChangeSchemaLock(ESRI.ArcGIS.Geodatabase.esriSchemaLock.esriExclusiveSchemaLock);23                 ESRI.ArcGIS.Geodatabase.IClassSchemaEdit cSchemaEdit = (ESRI.ArcGIS.Geodatabase.IClassSchemaEdit)t;24                 cSchemaEdit.AlterFieldAliasName(oriFieldName, desFieldName);25                 MessageBox.Show("done");26             }27             catch (System.Exception ex) {28                 MessageBox.Show(ex.Message);29             }30             finally {31                 if (slock != null)32                     slock.ChangeSchemaLock(ESRI.ArcGIS.Geodatabase.esriSchemaLock.esriSharedSchemaLock);33             }34         }

 

Geodatabase - 修改字段别名(Field Alias)


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