三種方法加載MXD文檔 （LoadMxFile方法和IMapDocument方法和IMapDocument方法）

LoadMxFile方法加載MXD文檔：
 private void loadMxFile方法ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            //加載數據前如果有數據則清空
            try
            {
                OpenFileDialog pOpenFileDialog = new OpenFileDialog();//打開文件
                pOpenFileDialog.CheckFileExists = true;//判斷文件存在
                pOpenFileDialog.Title = "打開地圖文檔";
                pOpenFileDialog.Filter = "ArcMap文檔(*.mxd)|*.mxd;|ArcMap模板(*.mxt)|*.mxt|發布地圖文件(*.pmf)|*.pmf|所有地圖格式(*.mxd;*.mxt;*.pmf)|*.mxd;*.mxt;*.pmf";
                pOpenFileDialog.Multiselect = false;   //不允許多個文件同時選擇
                pOpenFileDialog.RestoreDirectory = true;   //存儲打開的文件路徑
                if (pOpenFileDialog.ShowDialog() == DialogResult.OK)
                {
                    string pFileName = pOpenFileDialog.FileName;
                    if (pFileName == "")
                    {
                        return;
                    }
                    if (mainMapControl.CheckMxFile(pFileName)) //MapControl的CheckMxFile方法檢查地圖文檔是否為效的地圖文檔，返回值為Bool
                    {
                        ClearAllData(); mainMapControl.LoadMxFile(pFileName);//MapControl的LoadMxFile方法 加載地圖文檔
                    }
                    else
                    {
                        MessageBox.Show(pFileName + "是無效的地圖文檔!", "信息提示");
                        return;
                    }
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show("打開地圖文檔失敗" + ex.Message);
            }
        }

        #region 封裝的方法
        private void ClearAllData()
        {
            if (mainMapControl.Map != null && mainMapControl.Map.LayerCount > 0)
            {
                //新建mainMapControl中Map
                IMap dataMap = new MapClass();
                dataMap.Name = "Map";
                mainMapControl.DocumentFilename = string.Empty;
                mainMapControl.Map = dataMap;

                //新建EagleEyeMapControl中Map
                IMap eagleEyeMap = new MapClass();
                eagleEyeMap.Name = "eagleEyeMap";
                EagleEyeMapControl.DocumentFilename = string.Empty;
                EagleEyeMapControl.Map = eagleEyeMap;
            }
        }
        #endregion

 #region IMapDocument方法加載Mxd文檔文件

        private void iMapDocument方法ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            try
            {
                OpenFileDialog pOpenFileDialog = new OpenFileDialog();
                pOpenFileDialog.CheckFileExists = true;
                pOpenFileDialog.Title = "打開地圖文檔";
                pOpenFileDialog.Filter = "ArcMap文檔(*.mxd)|*.mxd;|ArcMap模板(*.mxt)|*.mxt|發布地圖文件(*.pmf)|*.pmf|所有地圖格式(*.mxd;*.mxt;*.pmf)|*.mxd;*.mxt;*.pmf";
                pOpenFileDialog.Multiselect = false;
                pOpenFileDialog.RestoreDirectory = true;
                if (pOpenFileDialog.ShowDialog() == DialogResult.OK)
                {
                    string pFileName = pOpenFileDialog.FileName;
                    if (pFileName == "")
                    {
                        return;
                    }

                    if (mainMapControl.CheckMxFile(pFileName)) //檢查地圖文檔有效性
                    {
                        //將數據載入pMapDocument並與Map控件關聯
                        IMapDocument pMapDocument = new MapDocument();//using ESRI.ArcGIS.Carto;
                        pMapDocument.Open(pFileName, ""); //獲取Map中激活的地圖文檔 mainMapControl.Map = pMapDocument.ActiveView.FocusMap; mainMapControl.ActiveView.Refresh();
                    }
                    else
                    {
                        MessageBox.Show(pFileName + "是無效的地圖文檔!", "信息提示");
                        return;
                    }
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show("打開地圖文檔失敗" + ex.Message);
            }
        }
        #endregion

 #region ControlsOpenDocCommandClass加載地圖

        private void controlsOpenDocCommandClass方法ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            ICommand command = new ControlsOpenDocCommandClass(); command.OnCreate(mainMapControl.Object); command.OnClick();
        }

        #endregion