public void OnClick()
{
try
{
m_Map = m_hookHelper.FocusMap;
m_activeView = m_Map as IActiveView;
m_EngineEditor = MapManager.EngineEditor;
EditVertexClass.ClearResource();
if (m_EngineEditor == null)
{
return;
}
if (m_EngineEditor.EditState != esriEngineEditState.esriEngineStateEditing)
{
return;
}
IWorkspaceEdit2 pWSEdit = m_EngineEditor.EditWorkspace as IWorkspaceEdit2;
if (pWSEdit == null)
{
return;
}
Boolean bHasUndo = false;
pWSEdit.HasUndos(ref bHasUndo);
if (bHasUndo)
{
pWSEdit.UndoEditOperation();
}
m_activeView.Refresh();
}
catch (Exception ex)
{
}
}