///
///
private void SaveAs_Click(object sender, EventArgs e) {
// 调用另存为命令
ICommand command = new ControlsSaveAsDocCommandClass(); command.OnCreate(m_controlsSynchronizer.ActiveControl); command.OnClick(); }
///
///
private void Exit_Click(object sender, EventArgs e) {
Application.Exit(); }
3、 编译运行
按 F5 编译运行程序。也许你会发现，菜单命令的实现方式都是类型的。没错，在 AE9.2 中，内置了许多常用的 Command 和 Tool ，如 ControlsAddDataCommandClass 、 ControlsMapZoomInToolClass 、 ControlsMapPanToolClass 等等，这些内置对象在 ESRI.ArcGIS.Controls 命名空间中，你可以对象浏览器中查看。而且这些内置对象的调用方式都类似，如下所示： // 定义
ICommand command = new ControlsSaveAsDocCommandClass(); // 创建
command.OnCreate(m_controlsSynchronizer.ActiveControl); // 调用
command.OnClick();
第三讲 MapControl与PageLayoutControl同步
在ArcMap中，能够很方面地进行MapView和Layout View两种视图的切换，而且二者之间的数据是同步显示的。 关于两种视图同步的实现方法有多种，可以使用ObjectCopy对象进行数据硬拷贝，而比较简单的方法莫过于二者共享一份地图了，这也是最常用的方法。
1、新建同步类ControlsSynchronizer
在解决方案面板中右击项目名，选择“添加|类”，在类别中选择“Visual C#项目项”，在模板中选择“类”，输入类名“ControlsSynchronizer.cs”，将以下代码覆盖自动生成的代码： using System;
using System.Drawing; using System.Collections; using System.ComponentModel; using System.Windows.Forms; using System.IO;
using System.Runtime.InteropServices; using ESRI.ArcGIS.esriSystem; using ESRI.ArcGIS.Carto; using ESRI.ArcGIS.Controls; using ESRI.ArcGIS.SystemUI;
namespace _sdnMap
{
///
/// This class is used to synchronize a gven PageLayoutControl and a MapControl.
/// When initialized, the user must pass the reference of these control to the class, bind /// the control together by calling 'BindControls' which in turn sets a joined Map referenced /// by both control; and set all the buddy controls joined between these two controls.
/// When alternating between the MapControl and PageLayoutControl, you should activate the visible control
/// and deactivate the other by calling ActivateXXX.
/// This calss is limited to a situation where the controls are not simultaneously visible. ///
public class ControlsSynchronizer {
#region class members
private IMapControl3 m_mapControl = null;
private IPageLayoutControl2 m_pageLayoutControl = null; private ITool m_mapActiveTool = null;
private ITool m_pageLayoutActiveTool = null; private bool m_IsMapCtrlactive = true;
private ArrayList m_frameworkControls = null; #endregion
#region constructor ///
public ControlsSynchronizer() {
//初始化ArrayList
m_frameworkControls = new ArrayList(); }
///
///
///
public ControlsSynchronizer(IMapControl3 mapControl, IPageLayoutControl2 pageLayoutControl) : this() {
//为类成员赋值
m_mapControl = mapControl;
m_pageLayoutControl = pageLayoutControl; }
#endregion
#region properties ///
/// 取得或设置MapControl ///
public IMapControl3 MapControl {
get { return m_mapControl; } set { m_mapControl = value; } }
///
/// 取得或设置PageLayoutControl ///
public IPageLayoutControl2 PageLayoutControl
{
get { return m_pageLayoutControl; } set { m_pageLayoutControl = value; } }
///
/// 取得当前ActiveView的类型 ///
public string ActiveViewType {
get {
if (m_IsMapCtrlactive) return \ else
return \ } }
///
/// 取得当前活动的Control ///
public object ActiveControl {
get {
if (m_mapControl == null || m_pageLayoutControl == null)
throw new Exception(\or PageLayoutControl are not initialized!\
if (m_IsMapCtrlactive)
return m_mapControl.Object; else
return m_pageLayoutControl.Object; } }
#endregion
#region Methods ///
/// 激活MapControl并解除the PagleLayoutControl ///
public void ActivateMap() {
try {
if (m_pageLayoutControl == null || m_mapControl == null)
throw new Exception(\PageLayoutControl are not initialized!\//缓存当前PageLayout的CurrentTool
if(m_pageLayoutControl.CurrentTool!=null)m_pageLayoutActiveTool= m_pageLayoutControl.CurrentTool; //解除PagleLayout
m_pageLayoutControl.ActiveView.Deactivate(); //激活MapControl
m_mapControl.ActiveView.Activate(m_mapControl.hWnd);
//将之前MapControl最后使用的tool，作为活动的tool，赋给MapControl的CurrentTool
if (m_mapActiveTool != null) m_mapControl.CurrentTool = m_mapActiveTool; m_IsMapCtrlactive = true;
//为每一个的framework controls,设置Buddy control为MapControl this.SetBuddies(m_mapControl.Object); }
catch (Exception ex) {
throw new Exception(string.Format(\ex.Message)); } }
///
/// 激活PagleLayoutControl并减活MapCotrol ///
public void ActivatePageLayout() {
try {
if (m_pageLayoutControl == null || m_mapControl == null) throw new Exception(\MapControl or PageLayoutControl are not initialized!\
//缓存当前MapControl的CurrentTool
if (m_mapControl.CurrentTool != null) m_mapActiveTool = m_mapControl.CurrentTool; //解除MapControl
m_mapControl.ActiveView.Deactivate();
//激活PageLayoutControl
m_pageLayoutControl.ActiveView.Activate(m_pageLayoutControl.hWnd);
//将之前PageLayoutControl最后使用的tool，作为活动的tool，赋给PageLayoutControl的CurrentTool
if (m_pageLayoutActiveTool != null) m_pageLayoutControl.CurrentTool = m_pageLayoutActiveTool;
m_IsMapCtrlactive = false;
//为每一个的framework controls,设置Buddy control为PageLayoutControl this.SetBuddies(m_pageLayoutControl.Object); }
catch (Exception ex) {
throw new Exception(string.Format(\ } }
///
/// 给予一个地图, 置换PageLayoutControl和MapControl的focus map ///
///
if (newMap == null)
throw new Exception(\map for replacement is not initialized!\
if (m_pageLayoutControl == null || m_mapControl == null)
throw new Exception(\MapControl or PageLayoutControl are not initialized!\
//create a new instance of IMaps collection which is needed by the PageLayout //创建一个PageLayout需要用到的,新的IMaps collection的实例 IMaps maps = new Maps();
//add the new map to the Maps collection //把新的地图加到Maps collection里头去 maps.Add(newMap);
bool bIsMapActive = m_IsMapCtrlactive;
//call replace map on the PageLayout in order to replace the focus map
//we must call ActivatePageLayout, since it is the control we call 'ReplaceMaps' //调用PageLayout的replace map来置换focus map
//我们必须调用ActivatePageLayout,因为它是那个我们可以调用\的Control this.ActivatePageLayout();
m_pageLayoutControl.PageLayout.ReplaceMaps(maps); //assign the new map to the MapControl //把新的地图赋给MapControl m_mapControl.Map = newMap; //reset the active tools //重设active tools
m_pageLayoutActiveTool = null; m_mapActiveTool = null;
//make sure that the last active control is activated //确认之前活动的control被激活 if (bIsMapActive) {
this.ActivateMap();
m_mapControl.ActiveView.Refresh(); } else {
this.ActivatePageLayout();
m_pageLayoutControl.ActiveView.Refresh(); } }
///
/// bind the MapControl and PageLayoutControl together by assigning a new joint focus map /// 指定共同的Map来把MapControl和PageLayoutControl绑在一起 ///
///
///
/// public void BindControls(IMapControl3 mapControl, IPageLayoutControl2 pageLayoutControl, bool activateMapFirst) {
if (mapControl == null || pageLayoutControl == null)
throw new Exception(\MapControl or PageLayoutControl are not initialized!\ m_mapControl = MapControl;
m_pageLayoutControl = pageLayoutControl;
this.BindControls(activateMapFirst); }
///
/// bind the MapControl and PageLayoutControl together by assigning a new joint focus map /// 指定共同的Map来把MapControl和PageLayoutControl绑在一起 ///
///
public void BindControls(bool activateMapFirst)