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  • Arcgis Engine9.2 Undo 和 Redo 功能实现

     


    /// <summary>
            /// 撒消编辑
            /// </summary>
            /// <param name="m_pMap">IMap 地图对象</param>
            public void MapUndoEdit(IMap m_pMap)
            {
                IEngineEditProperties ep = new EngineEditorClass();
                ILayer m_pCurrentLayer = ep.TargetLayer;
                if (m_pCurrentLayer == null) return;
                IFeatureLayer pFeatureLayer = (IFeatureLayer)m_pCurrentLayer;
                IDataset pDataset = (IDataset)pFeatureLayer.FeatureClass;
                if (pDataset == null) return;
               
                IWorkspaceEdit pWorkspaceEdit = (IWorkspaceEdit)pDataset.Workspace;
                bool bHasUndos = false;
                pWorkspaceEdit.HasUndos(ref bHasUndos);
                if (bHasUndos)
                    pWorkspaceEdit.UndoEditOperation();
                IActiveView pActiveView = (IActiveView)m_pMap;
                pActiveView.Refresh();
            }

            /// <summary>
            /// 重做
            /// </summary>
            /// <param name="m_pMap">IMap 地图对象</param>
            public void MapRedoEdit(IMap m_pMap)
            {
                IEngineEditProperties ep = new EngineEditorClass();
                ILayer m_pCurrentLayer = ep.TargetLayer;
                if (m_pCurrentLayer == null) return;
                IFeatureLayer pFeatureLayer = (IFeatureLayer)m_pCurrentLayer;
                IDataset pDataset = (IDataset)pFeatureLayer.FeatureClass;
                if (pDataset == null) return;
                IWorkspaceEdit pWorkspaceEdit = (IWorkspaceEdit)pDataset.Workspace;
                bool bHasUndos = false;
                pWorkspaceEdit.HasUndos(ref bHasUndos);
                if (bHasUndos)
                    pWorkspaceEdit.RedoEditOperation();
                IActiveView pActiveView = (IActiveView)m_pMap;
                pActiveView.Refresh();
            }

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  • 原文地址:https://www.cnblogs.com/tuncaysanli/p/1330074.html
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