ArcGIS Engine开发模板及代码

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以下为AE开发软件自带的模板及代码，开发工具为VS 2012+ArcGIS Engine 10.2。
using System;using System.Drawing;using System.Collections;using System.ComponentModel;using System.Windows.Forms;using System.Data;using System.IO;using System.Runtime.InteropServices;using ESRI.ArcGIS.esriSystem;using ESRI.ArcGIS.Carto;using ESRI.ArcGIS.Controls;using ESRI.ArcGIS.ADF;using ESRI.ArcGIS.SystemUI;namespace MapControlApplication1{    public sealed partial class MainForm : Form    {        private IMapControl3 m_mapControl = null;        private string m_mapDocumentName = string.Empty;        public MainForm()        {            InitializeComponent();        }        private void MainForm_Load(object sender, EventArgs e)        {            //get the MapControl            m_mapControl = (IMapControl3)axMapControl1.Object;            //disable the Save menu (since there is no document yet)            menuSaveDoc.Enabled = false;        }        private void menuNewDoc_Click(object sender, EventArgs e)        {            //execute New Document command            ICommand command = new CreateNewDocument();            command.OnCreate(m_mapControl.Object);            command.OnClick();        }        private void menuOpenDoc_Click(object sender, EventArgs e)        {            //execute Open Document command            ICommand command = new ControlsOpenDocCommandClass();            command.OnCreate(m_mapControl.Object);            command.OnClick();        }        private void menuSaveDoc_Click(object sender, EventArgs e)        {            //execute Save Document command            if (m_mapControl.CheckMxFile(m_mapDocumentName))            {                //create a new instance of a MapDocument                IMapDocument mapDoc = new MapDocumentClass();                mapDoc.Open(m_mapDocumentName, string.Empty);                //Make sure that the MapDocument is not readonly                if (mapDoc.get_IsReadOnly(m_mapDocumentName))                {                    MessageBox.Show("Map document is read only!");                    mapDoc.Close();                    return;                }                //Replace its contents with the current map                mapDoc.ReplaceContents((IMxdContents)m_mapControl.Map);                //save the MapDocument in order to persist it                mapDoc.Save(mapDoc.UsesRelativePaths, false);                //close the MapDocument                mapDoc.Close();            }        }        private void menuSaveAs_Click(object sender, EventArgs e)        {            ICommand command = new ControlsSaveAsDocCommandClass();            command.OnCreate(m_mapControl.Object);            command.OnClick();        }        private void menuExitApp_Click(object sender, EventArgs e)        {            Application.Exit();        }        //listen to MapReplaced evant in order to update the statusbar and the Save menu        private void axMapControl1_OnMapReplaced(object sender, IMapControlEvents2_OnMapReplacedEvent e)        {            //get the current document name from the MapControl            m_mapDocumentName = m_mapControl.DocumentFilename;            //if there is no MapDocument, diable the Save menu and clear the statusbar            if (m_mapDocumentName == string.Empty)            {                menuSaveDoc.Enabled = false;                statusBarXY.Text = string.Empty;            }            else            {                //enable the Save manu and write the doc name to the statusbar                menuSaveDoc.Enabled = true;                statusBarXY.Text = Path.GetFileName(m_mapDocumentName);            }        }        private void axMapControl1_OnMouseMove(object sender, IMapControlEvents2_OnMouseMoveEvent e)        {            statusBarXY.Text = string.Format("{0}, {1}  {2}", e.mapX.ToString("#######.##"), e.mapY.ToString("#######.##"), axMapControl1.MapUnits.ToString().Substring(4));        }    }}
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