C# Winform画图板

#region Using directives

using System;
using System.Windows.Forms;
using System.Diagnostics;
using System.IO;
using System.Globalization;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;
using Microsoft.Win32;
using System.Security;

#endregion

// Using: in the end of this file.

namespace DocToolkit
{
    #region Class DocManager

    /// 

    /// Document manager. Makes file-related operations:
    /// open new save updating of the form title 
    /// registering of file type for Windows Shell.
    /// Built using the article:
    /// Creating Document-Centric Applications in Windows Forms
    /// by Chris Sells
    /// http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnforms/html/winforms09182003.asp
    /// 

    public class DocManager
    {

        #region Events

        public event SaveEventHandler SaveEvent;
        public event LoadEventHandler LoadEvent;
        public event OpenFileEventHandler OpenEvent;
        public event EventHandler ClearEvent;
        public event EventHandler DocChangedEvent;

        #endregion

        #region Members

        private string fileName = ““;
        private bool dirty = false;

        private Form frmOwner;
        private string newDocName;
        private string fileDlgFilter;
        private string registryPath;
        private bool updatetitle;

        private const string registryValue = “Path“;
        private string fileDlgInitDir = ““;         // file dialog initial directory

        #endregion

        #region Enum

        /// 

        /// Enumeration used for Save function
        /// 

        public enum SaveType
        {
            Save
            SaveAs
        }

        #endregion

        #region Constructor

        /// 

        /// Initialization
        /// 

        /// 
        public DocManager（DocManagerData data）
        {
            frmOwner = data.FormOwner;
            frmOwner.Closing += OnClosing;

            updatetitle = data.Updatetitle;

            newDocName = data.NewDocName;

            fileDlgFilter = data.FileDialogFilter;

            registryPath = data.RegistryPath;

            if （!registryPath.EndsWith（“\“））
                registryPath += “\“;

            registryPath += “FileDir“;

            // attempt to read initial directory from registry
            RegistryKey key = Registry.CurrentUser.OpenSubKey（registryPath）;

            if （key != null）
            {
                string s = （string）key.GetValue（registryValue）;

                if （!Empty（s））
                    fileDlgInitDir = s;
            }
        }

        #endregion

        #region Public functions and Properties

        /// 

        /// Dirty property （true when document has unsaved changes）.
 

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2018-10-17 10:33  DrawToolsRedux-Source
     目录           0  2018-10-17 10:33  DrawToolsRedux-SourceDrawToolsRedux-Source
     目录           0  2018-10-17 10:33  DrawToolsRedux-SourceDrawToolsRedux-SourceDrawToolsRedux
     目录           0  2018-10-17 10:33  DrawToolsRedux-SourceDrawToolsRedux-SourceDrawToolsRedux.vs
     目录           0  2018-10-17 10:33  DrawToolsRedux-SourceDrawToolsRedux-SourceDrawToolsRedux.vsDrawToolsRedux
     目录           0  2018-10-17 10:33  DrawToolsRedux-SourceDrawToolsRedux-SourceDrawToolsRedux.vsDrawToolsReduxv14
     文件       86528  2018-10-17 10:44  DrawToolsRedux-SourceDrawToolsRedux-SourceDrawToolsRedux.vsDrawToolsReduxv14.suo
     文件       13321  2010-06-23 11:11  DrawToolsRedux-SourceDrawToolsRedux-SourceDrawToolsReduxArticle.htm
     目录           0  2018-10-17 10:33  DrawToolsRedux-SourceDrawToolsRedux-SourceDrawToolsReduxDocToolkit
     文件       28000  2007-01-12 17:46  DrawToolsRedux-SourceDrawToolsRedux-SourceDrawToolsReduxDocToolkitDocManager.cs
     文件        3970  2010-05-10 11:52  DrawToolsRedux-SourceDrawToolsRedux-SourceDrawToolsReduxDocToolkitDocToolkit.csproj
     文件         452  2010-05-10 11:52  DrawToolsRedux-SourceDrawToolsRedux-SourceDrawToolsReduxDocToolkitDocToolkit.csproj.user
     文件        3941  2007-01-12 17:50  DrawToolsRedux-SourceDrawToolsRedux-SourceDrawToolsReduxDocToolkitDragDropManager.cs
     文件       16590  2007-01-12 17:47  DrawToolsRedux-SourceDrawToolsRedux-SourceDrawToolsReduxDocToolkitMruManager.cs
     文件        6401  2007-01-12 17:52  DrawToolsRedux-SourceDrawToolsRedux-SourceDrawToolsReduxDocToolkitPersistWindowState.cs
     目录           0  2018-10-17 10:33  DrawToolsRedux-SourceDrawToolsRedux-SourceDrawToolsReduxDocToolkitProperties
     文件        1393  2007-01-12 17:44  DrawToolsRedux-SourceDrawToolsRedux-SourceDrawToolsReduxDocToolkitPropertiesAssemblyInfo.cs
     目录           0  2018-10-17 10:33  DrawToolsRedux-SourceDrawToolsRedux-SourceDrawToolsReduxDocToolkitin
     目录           0  2018-10-17 10:33  DrawToolsRedux-SourceDrawToolsRedux-SourceDrawToolsReduxDocToolkitinRelease
     文件       19968  2018-10-17 10:34  DrawToolsRedux-SourceDrawToolsRedux-SourceDrawToolsReduxDocToolkitinReleaseDocToolkit.dll
     文件       44544  2018-10-17 10:34  DrawToolsRedux-SourceDrawToolsRedux-SourceDrawToolsReduxDocToolkitinReleaseDocToolkit.pdb
     目录           0  2018-10-17 10:33  DrawToolsRedux-SourceDrawToolsRedux-SourceDrawToolsReduxDocToolkitobj
     目录           0  2018-10-17 10:34  DrawToolsRedux-SourceDrawToolsRedux-SourceDrawToolsReduxDocToolkitobjRelease
     文件        6043  2018-10-17 10:33  DrawToolsRedux-SourceDrawToolsRedux-SourceDrawToolsReduxDocToolkitobjReleaseDesignTimeResolveAssemblyReferencesInput.cache
     文件        1216  2018-10-17 10:34  DrawToolsRedux-SourceDrawToolsRedux-SourceDrawToolsReduxDocToolkitobjReleaseDocToolkit.csproj.FileListAbsolute.txt
     文件        1225  2018-10-17 10:34  DrawToolsRedux-SourceDrawToolsRedux-SourceDrawToolsReduxDocToolkitobjReleaseDocToolkit.csprojResolveAssemblyReference.cache
     文件       19968  2018-10-17 10:34  DrawToolsRedux-SourceDrawToolsRedux-SourceDrawToolsReduxDocToolkitobjReleaseDocToolkit.dll
     文件       44544  2018-10-17 10:34  DrawToolsRedux-SourceDrawToolsRedux-SourceDrawToolsReduxDocToolkitobjReleaseDocToolkit.pdb
     目录           0  2018-10-17 10:57  DrawToolsRedux-SourceDrawToolsRedux-SourceDrawToolsReduxDocToolkitobjReleaseTempPE
     目录           0  2018-10-17 10:33  DrawToolsRedux-SourceDrawToolsRedux-SourceDrawToolsReduxDrawToolsRedux
     文件         855  2007-05-29 21:53  DrawToolsRedux-SourceDrawToolsRedux-SourceDrawToolsReduxDrawToolsReduxCommand.cs
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