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();

}