來自：http://blog.sina.com.cn/s/blog_4d780fc10101d2d5.html
先初步了解到大概用到的下面的接口和類：
IEngineEditor
IEngineEditTask
IEngineEditLayers
IEngineEditEvents
IEngineEditProperties
ControlsEditingSketchToolClass
ControlsEditingEditToolClass
ControlsEditingCopyCommandClass
ControlsEditingPasteCommandClass
ControlsEditingClearCommandClass
現在使用 IEngineEditor、IEngineEditTask、IEngineEditLayers這三個接口，再加上Command命令和Tool可以是實現新建要素、復制、剪切、黏貼、刪除、移動要素。
下面說明一下我實現新建圖形功能的思路：
1、根據workspace和map開啟編輯。
2、設置目標圖層。
3、設置編輯操作的任務類型。
4、激活SletchTool，ControlsEditingSketchToolClass。
5、這時就可以在AxMapControl中畫圖形了。圖形的點線面類型，SletchTool工具會根據目標圖層的類型自動識別。
使用了全局變量IEngineEditor，保證在其他的模塊該變量的值
private IEngineEditor m_EngineEditor = new EngineEditorClass();
private void btnNewFeature_Click(object sender, EventArgs e)
{
if(m_engineEditor.EditState==esriEngineEditState.esriEngineStateNotEditing)
{
//Start editing the workspace of the first feature layer found.
//設置編輯的WorkSpace和編輯對象圖層
ILayer currentLayer = mMap.get_Layer(0);
if (currentLayer is IFeatureLayer)
{
IFeatureLayer featureLayer = currentLayer as IFeatureLayer;
IDataset dataset = featureLayer.FeatureClass as IDataset;
IWorkspace workspace = dataset.Workspace;
m_engineEditor.StartEditing(workspace, mMap.Map);
((IEngineEditLayers)m_engineEditor).SetTargetLayer(featureLayer, 0);
SetCurrentTask(ref m_engineEditor, "新建要素");
}
}
}
///
/// 設置編輯的任務類型
///
///
/// 自己命名的任務名稱
public static void SetCurrentTask(ref IEngineEditor pEngineEditor, string taskName)
{
IEngineEditTask edittask;
if (pEngineEditor.EditState == esriEngineEditState.esriEngineStateEditing)
{
switch (taskName)
{
case "新建要素":
edittask = pEngineEditor.GetTaskByUniqueName("ControlToolsEditing_CreateNewFeatureTask");
if (edittask != null)
{
pEngineEditor.CurrentTask = edittask;
}
break;
case "修改圖形":
edittask=pEngineEditor.GetTaskByUniqueName("ReshapePolylineEditTask_Reshape Polyline_CSharp");
if (edittask != null)
{
pEngineEditor.CurrentTask = edittask;
}
break;
case "修改要素":
edittask= pEngineEditor.GetTaskByUniqueName("ControlToolsEditing_ModifyFeatureTask");
if (edittask != null)
{
pEngineEditor.CurrentTask = edittask;
}
break;
}
}
}
刪除、復制、黏貼的功能，將m_EngineEditor 置於開啟編輯的狀態後，直接調用下面的命令就好了
ControlsEditingEditToolClass //用於選擇要素對像
ControlsEditingCopyCommandClass
ControlsEditingPasteCommandClass
ControlsEditingClearCommandClass
撤銷和重做的功能
///
/// 撒消編輯
///
/// IMap 地圖對象
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();
}
///
/// 重做
///
/// IMap 地圖對象
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();
}
