AE地图文档的操作，新建打开保存另存为地图文档的实例
一个简单的实例，AE地图文档的一些操作，包括新建，打开，保存，另存为地图文档等操作。
功能介绍：新建地图文档，新建之前判断当前是否存在地图文档，如存在则提示是否保存，点击是保存当前文档并新建空白文档；点击否则直接新建地图文档。
打开地图文档，打开一个新的地图文档。如果当前存在地图文档则直接重新加载新打开的地图文档。
保存地图文档，保存当前的地图文档。
另存为地图文档，将当前地图文档另存为一个新的地图文档。
开发环境：ArcObject10.1，VS2010
代码如下：
1 private void 新建ToolStripMenuItem_Click(object sender, EventArgs e) 2 { 3 //如果当前没有图层，则不操作 4 if (axMapControl1.Map.LayerCount == 0) 5 { 6 7 } 8 else 9 { 10 ICommand command = new CreateNewDocument(); 11 command.OnCreate(axMapControl1.Object); 12 command.OnClick(); 13 } 14 } 15 16 private void 打开ToolStripMenuItem_Click(object sender, EventArgs e) 17 { 18 ICommand command = new ControlsOpenDocCommandClass(); 19 command.OnCreate(axMapControl1.Object); 20 command.OnClick(); 21 } 22 23 private void 保存ToolStripMenuItem_Click(object sender, EventArgs e) 24 { 25 string m_currentMapDocument = axMapControl1.DocumentFilename; 26 27 if (axMapControl1.Map.LayerCount == 0) 28 { 29 MessageBox.Show("没有地图文档需要保存！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Asterisk); 30 return; 31 } 32 33 //execute Save Document command 34 if (axMapControl1.CheckMxFile(m_currentMapDocument)) 35 { 36 //create a new instance of a MapDocument 37 IMapDocument mapDoc = new MapDocumentClass(); 38 mapDoc.Open(m_currentMapDocument, string.Empty); 39 40 //Make sure that the MapDocument is not readonly 41 if (mapDoc.get_IsReadOnly(m_currentMapDocument)) 42 { 43 MessageBox.Show("Map document is read only!"); 44 mapDoc.Close(); 45 return; 46 } 47 48 //Replace its contents with the current map 49 mapDoc.ReplaceContents((IMxdContents)axMapControl1.Map); 50 51 //save the MapDocument in order to persist it 52 mapDoc.Save(mapDoc.UsesRelativePaths, false); 53 54 //close the MapDocument 55 mapDoc.Close(); 56 57 MessageBox.Show("保存地图文档成功！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Asterisk); 58 } 59 else 60 { 61 MessageBox.Show(m_currentMapDocument + "不是有效的地图文档！", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error); 62 } 63 } 64 65 private void 另存为ToolStripMenuItem_Click(object sender, EventArgs e) 66 { 67 if (axMapControl1.Map.LayerCount == 0) 68 { 69 MessageBox.Show("没有地图文档需要保存！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Asterisk); 70 return; 71 } 72 73 try 74 { 75 ICommand command = new ControlsSaveAsDocCommandClass(); 76 command.OnCreate(axMapControl1.Object); 77 command.OnClick(); 78 MessageBox.Show("另存为地图文档成功！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Asterisk); 79 } 80 catch (Exception ex) 81 { 82 MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error); 83 } 84 } 85 86 private void 退出ToolStripMenuItem_Click(object sender, EventArgs e) 87 { 88 this.Close(); 89 }
其中，新建地图文档CreateNewDocument类的代码：
1 /// <summary> 2 /// Summary description for CreateNewDocument. 3 /// </summary> 4 public class CreateNewDocument : BaseCommand 5 { 6 private IHookHelper m_hookHelper = null; 7 8 //constructor 9 public CreateNewDocument() 10 { 11 //update the base properties 12 base.m_category = ".NET Samples"; 13 base.m_caption = "NewDocument"; 14 base.m_message = "Create a new map"; 15 base.m_toolTip = "Create a new map"; 16 base.m_name = "DotNetTemplate_NewDocumentCommand"; 17 } 18 19 #region Overridden Class Methods 20 21 /// <summary> 22 /// Occurs when this command is created 23 /// </summary> 24 /// <param name="hook">Instance of the application</param> 25 public override void OnCreate(object hook) 26 { 27 if (m_hookHelper == null) 28 m_hookHelper = new HookHelperClass(); 29 30 m_hookHelper.Hook = hook; 31 } 32 33 /// <summary> 34 /// Occurs when this command is clicked 35 /// </summary> 36 public override void OnClick() 37 { 38 IMapControl3 mapControl = null; 39 40 //get the MapControl from the hook in case the container is a ToolbarControl 41 if (m_hookHelper.Hook is IToolbarControl) 42 { 43 mapControl = (IMapControl3)((IToolbarControl)m_hookHelper.Hook).Buddy; 44 } 45 //In case the container is MapControl 46 else if (m_hookHelper.Hook is IMapControl3) 47 { 48 mapControl = (IMapControl3)m_hookHelper.Hook; 49 } 50 else 51 { 52 //MessageBox.Show("Active control must be MapControl!", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Exclamation); 53 MessageBox.Show("必须是MapControl控件!", "警告", MessageBoxButtons.OK, MessageBoxIcon.Exclamation); 54 return; 55 } 56 57 //check to see if there is an active edit session and whether edits have been made 58 DialogResult result; 59 IEngineEditor engineEditor = new EngineEditorClass(); 60 61 if ((engineEditor.EditState == esriEngineEditState.esriEngineStateEditing) && (engineEditor.HasEdits() == true)) 62 { 63 //result = MessageBox.Show("Would you like to save your edits", "Save Edits", MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question); 64 result = MessageBox.Show("是否保存编辑", "保存编辑", MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question); 65 66 67 switch (result) 68 { 69 70 case DialogResult.Cancel: 71 return; 72 73 case DialogResult.No: 74 engineEditor.StopEditing(false); 75 break; 76 77 case DialogResult.Yes: 78 engineEditor.StopEditing(true); 79 break; 80 81 } 82 } 83 84 //allow the user to save the current document 85 //DialogResult res = MessageBox.Show("Would you like to save the current document?", "AoView", MessageBoxButtons.YesNo, MessageBoxIcon.Question); 86 DialogResult res = MessageBox.Show("是否保存当前地图文档？", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Question); 87 if (res == DialogResult.Yes) 88 { 89 //launch the save command 90 ICommand command = new ControlsSaveAsDocCommandClass(); 91 command.OnCreate(m_hookHelper.Hook); 92 command.OnClick(); 93 } 94 95 //create a new Map 96 IMap map = new MapClass(); 97 map.Name = "Map"; 98 99 //assign the new map to the MapControl 100 mapControl.DocumentFilename = string.Empty; 101 mapControl.Map = map; 102 } 103 104 #endregion 105 }
源代码完整实例下载地址：MapDocumentOperation.rar
