Arcgis Engine - 脱离ToolBarControl控件的命令和工具

　　可以手动实现脱离ToolBarControl控件的命令和工具

 //打开文件.
         private void file_tsmItem_Click(object sender, EventArgs e) {
             ESRI.ArcGIS.SystemUI.ICommand mxd = new ESRI.ArcGIS.Controls.ControlsOpenDocCommandClass();
             mxd.OnCreate(mapCtrl_main.Object);  //传递的应该是AxMapControl.Object,而不是AxMapControl.
             mxd.OnClick();
         }

         //添加数据.
         private void addData_tsmItem_Click(object sender, EventArgs e) {
             ESRI.ArcGIS.SystemUI.ICommand addData = new ESRI.ArcGIS.Controls.ControlsAddDataCommand();
             addData.OnCreate(mapCtrl_main.Object);
             addData.OnClick();
         }

         //地图视图.
         private void zoomIn_tsmItem_Click(object sender, EventArgs e) {
             ESRI.ArcGIS.SystemUI.ICommand zoomIn = new ESRI.ArcGIS.Controls.ControlsMapZoomInTool();
             zoomIn.OnCreate(mapCtrl_main.Object);
             mapCtrl_main.CurrentTool = (ESRI.ArcGIS.SystemUI.ITool)zoomIn;
         }

         private void zoomOut_tsmItem_Click(object sender, EventArgs e) {
             ESRI.ArcGIS.SystemUI.ICommand zoomOut = new ESRI.ArcGIS.Controls.ControlsMapZoomOutTool();
             zoomOut.OnCreate(mapCtrl_main.Object);
             mapCtrl_main.CurrentTool = (ESRI.ArcGIS.SystemUI.ITool)zoomOut;
         }