C# 新建文档CreateNewDocument

// Copyright 2010 ESRI
//
// All rights reserved under the copyright laws of the United States
// and applicable international laws, treaties, and conventions.
//
// You may freely redistribute and use this sample code, with or
// without modification, provided you include the original copyright
// notice and use restrictions.
//
// See the use restrictions at <your ArcGIS install location>/DeveloperKit10.0/userestrictions.txt.
//

using System;
using System.Drawing;
using System.Runtime.InteropServices;
using System.Windows.Forms;
using ESRI.ArcGIS.ADF.BaseClasses;
using ESRI.ArcGIS.ADF.CATIDs;
using ESRI.ArcGIS.Controls;
using ESRI.ArcGIS.Carto;
using ESRI.ArcGIS.SystemUI;

namespace TemporalStatistics2008
{
/// <summary>
/// Summary description for CreateNewDocument.
/// </summary>
public class CreateNewDocument : BaseCommand
{
private IHookHelper m_hookHelper = null;

//constructor
public CreateNewDocument()
{
//update the base properties
base.m_category = ".NET Samples";
base.m_caption = "NewDocument";
base.m_message = "Create a new map";
base.m_toolTip = "Create a new map";
base.m_name = "DotNetTemplate_NewDocumentCommand";
}

#region Overriden Class Methods

/// <summary>
/// Occurs when this command is created
/// </summary>
/// <param name="hook">Instance of the application</param>
public override void OnCreate(object hook)
{
if (m_hookHelper == null)
m_hookHelper = new HookHelperClass();

m_hookHelper.Hook = hook;
}

/// <summary>
/// Occurs when this command is clicked
/// </summary>
public override void OnClick()
{
IMapControl3 mapControl = null;

//get the MapControl from the hook in case the container is a ToolbarControl
if (m_hookHelper.Hook is IToolbarControl)
{
mapControl = (IMapControl3)((IToolbarControl)m_hookHelper.Hook).Buddy;
}
//In case the container is MapControl
else if (m_hookHelper.Hook is IMapControl3)
{
mapControl = (IMapControl3)m_hookHelper.Hook;
}
else
{
MessageBox.Show("Active control must be MapControl!", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
return;
}

//check to see if there is an active edit session and whether edits have been made
DialogResult result;
IEngineEditor engineEditor = new EngineEditorClass();

if ((engineEditor.EditState == esriEngineEditState.esriEngineStateEditing) && (engineEditor.HasEdits() == true))
{
result = MessageBox.Show("Would you like to save your edits", "Save Edits", MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question);

switch (result)
{

case DialogResult.Cancel:
return;

case DialogResult.No:
engineEditor.StopEditing(false);
break;

case DialogResult.Yes:
engineEditor.StopEditing(true);
break;

}
}

//allow the user to save the current document
DialogResult res = MessageBox.Show("Would you like to save the current document?", "AoView", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (res == DialogResult.Yes)
{
//launch the save command
ICommand command = new ControlsSaveAsDocCommandClass();
command.OnCreate(m_hookHelper.Hook);
command.OnClick();
}

//create a new Map
IMap map = new MapClass();
map.Name = "Map";

//assign the new map to the MapControl
mapControl.DocumentFilename = string.Empty;
mapControl.Map = map;
}

#endregion
}
}