<CommandTable xmlns="http://schemas.microsoft.com/VisualStudio/2005-10-18/CommandTable" xmlns:xs="http://www.w3.org/2001/XMLSchema">

  <Commands package="guidAutoBuildEntityPkg">

    <Groups>
      <Group guid="guidAutoBuildEntityCmdSet" id="MyMenuGroup" priority="0x0600">
        <Parent guid="guidCodeWindowRightClickCmdSet" id="CodeWindowRightClickMenu"/>
      </Group>
    </Groups>

  </Commands>

  <Symbols>
    <GuidSymbol name="guidAutoBuildEntityPkg" value="{c095f8f8-3f87-4eac-8dc0-44939a85b2f2}" />

    <GuidSymbol name="guidCodeWindowRightClickCmdSet" value="{D309F791-903F-11D0-9EFC-00A0C911004F}">
      <IDSymbol name="CodeWindowRightClickMenu" value="1026" />
    </GuidSymbol>

  </Symbols>

</CommandTable>

       var dte = (DTE)GetService(typeof(SDTE));

         /// <summary>
        /// 获取选中项目的信息
        /// </summary>
        /// <param name="dte"></param>
        /// <returns></returns>
        public static SelectedProject GetSelectedProjectInfo(this DTE dte)
        {
            var selectedItems = dte.SelectedItems;

            var projectName = (from SelectedItem item in selectedItems select item.Name).ToList();

            if (!selectedItems.MultiSelect && selectedItems.Count == 1)
            {
                var selectProject = selectedItems.Item(projectName.First());

                var projectFileList = (from ProjectItem projectItem in selectProject.Project.ProjectItems
                                       where projectItem.Name.EndsWith(".cs")
                                       select Path.GetFileNameWithoutExtension(projectItem.Name)).ToList();

                return new SelectedProject(selectProject.Project.FullName, selectProject.Project, projectFileList);
            }

            return null;
        }        

private void AutoBuildEntityEvent(object sender, EventArgs e)
        {
            var autoBuildEntityContent = new AutoBuildEntityContent ();

            //读取选中项目下的配置信息
            var entityXmlModel = new EntityXml(autoBuildEntityContent.SelectedProject.EntityXmlPath);
            entityXmlModel.Load();
            autoBuildEntityContent.EntityXml = entityXmlModel;

            new MainForm(autoBuildEntityContent).ShowDialog();
        }

    public class EntityXml
    {
        private readonly string _path;

        public EntityXml(string path)
        {
            _path = path;
        }

        public string ConnString { get; private set; }

        public string EntityTemplate { get; private set; }

        /// <summary>
        /// 读取_entity.xml
        /// </summary>
        /// <returns></returns>
        public EntityXml Load()
        {
            var xml = new XmlDocument();
            xml.Load(_path);

            var autoEntityNode = xml.SelectSingleNode("AutoEntity");
            if (autoEntityNode != null)
            {
                var connStringNode = autoEntityNode.SelectSingleNode("ConnString");
                if (connStringNode != null)
                {
                    ConnString = connStringNode.InnerText;
                }
                var templatesNodes = autoEntityNode.SelectSingleNode("Template");
                if (templatesNodes != null)
                {
                    EntityTemplate = templatesNodes.InnerText;
                }
            }

            return this;
        }
    }

/// <summary>
    /// 物理表
    /// </summary>
    public class DbTable
    {
        public string TableName { get; private set; }

        public List<TableColumn> Columns { get; set; }

        private readonly string _conn;

        public DbTable(string conn)
        {
            _conn = conn;
        }

        public DbTable(string tableName, List<TableColumn> columns)
        {
            TableName = tableName;
            Columns = columns;
        }

        public List<string> QueryTablesName()
        {
            var result = SqlHelper.Query(_conn, @"SELECT  name FROM    sysobjects WHERE  xtype IN ( 'u','v' ); ");

            return (from DataRow row in result.Rows select row[0].ToString()).ToList();
        }

        public List<DbTable> GetTables(List<string> tablesName)
        {
            if (!tablesName.Any())
                return new List<DbTable>();

            var t = new TableColumn(_conn);

            var columns = t.QueryColumn(tablesName);

            return columns.GroupBy(a => a.TableName).Select(a => new DbTable(a.Key, a.ToList())).ToList();
        }

    }

/// <summary>
    /// 物理表的列信息
    /// </summary>
    public class TableColumn
    {
        private readonly string _connStr;
        public TableColumn()
        {

        }
        public TableColumn(string connStr)
        {
            _connStr = connStr;
        }

        public string TableName { get; private set; }

        public string Name { get; private set; }

        public string Remark { get; private set; }

        public string Type { get; private set; }

        public int Length { get; private set; }

        public bool IsIdentity { get; private set; }

        public bool IsKey { get; private set; }

        public bool IsNullable { get; private set; }

        public string CSharpType
        {
            get
            {
                return SqlHelper.MapCsharpType(Type, IsNullable);
            }
        }

        /// <summary>
        /// 查询列信息
        /// </summary>
        /// <param name="tablesName"></param>
        /// <returns></returns>
        public List<TableColumn> QueryColumn(List<string> tablesName)
        {
            #region 表结构

            var paramKey = string.Join(",", tablesName.Select((a, index) => "@p" + index));
            var paramVal = tablesName.Select((a, index) => new SqlParameter("@p" + index, a)).ToArray();
            var sql = string.Format(@"SELECT  obj.name AS tablename ,
        col.name ,
        ISNULL(ep.[value], '') remark ,
        t.name AS type ,
        col.length ,
        COLUMNPROPERTY(col.id, col.name, 'IsIdentity') AS isidentity ,
        CASE WHEN EXISTS ( SELECT   1
                           FROM     dbo.sysindexes si
                                    INNER JOIN dbo.sysindexkeys sik ON si.id = sik.id
                                                              AND si.indid = sik.indid
                                    INNER JOIN dbo.syscolumns sc ON sc.id = sik.id
                                                              AND sc.colid = sik.colid
                                    INNER JOIN dbo.sysobjects so ON so.name = si.name
                                                              AND so.xtype = 'PK'
                           WHERE    sc.id = col.id
                                    AND sc.colid = col.colid ) THEN 1
             ELSE 0
        END AS iskey ,
        col.isnullable
FROM    dbo.syscolumns col
        LEFT  JOIN dbo.systypes t ON col.xtype = t.xusertype
        INNER JOIN dbo.sysobjects obj ON col.id = obj.id
                                         AND obj.xtype IN ( 'U', 'v' )
                                         AND obj.status >= 0
        LEFT  JOIN dbo.syscomments comm ON col.cdefault = comm.id
        LEFT  JOIN sys.extended_properties ep ON col.id = ep.major_id
                                                 AND col.colid = ep.minor_id
                                                 AND ep.name = 'MS_Description'
        LEFT  JOIN sys.extended_properties epTwo ON obj.id = epTwo.major_id
                                                    AND epTwo.minor_id = 0
                                                    AND epTwo.name = 'MS_Description'
WHERE   obj.name IN ({0});", paramKey);

            #endregion

            var result = SqlHelper.Query(_connStr, sql, paramVal);

            return (from DataRow row in result.Rows
                    select new TableColumn
                    {
                        IsIdentity = Convert.ToBoolean(row["isidentity"]),
                        IsKey = Convert.ToBoolean(row["iskey"]),
                        IsNullable = Convert.ToBoolean(row["isnullable"]),
                        Length = Convert.ToInt32(row["length"]),
                        Name = row["name"].ToString(),
                        Remark = row["remark"].ToString(),
                        TableName = row["tablename"].ToString(),
                        Type = row["type"].ToString()
                    }).ToList();
        }
    }

// <summary>
        /// 初始化模板引擎
        /// </summary>
        public static string ProcessTemplate(string template, Dictionary<string, object> param)
        {
            var templateEngine = new VelocityEngine();
            templateEngine.SetProperty(RuntimeConstants.RESOURCE_LOADER, "file");

            templateEngine.SetProperty(RuntimeConstants.INPUT_ENCODING, "utf-8");
            templateEngine.SetProperty(RuntimeConstants.OUTPUT_ENCODING, "utf-8");

            templateEngine.SetProperty(RuntimeConstants.FILE_RESOURCE_LOADER_PATH, AppDomain.CurrentDomain.BaseDirectory);

            var context = new VelocityContext();
            foreach (var item in param)
            {
                context.Put(item.Key, item.Value);
            }

            templateEngine.Init();

            var writer = new StringWriter();
            templateEngine.Evaluate(context, writer, "mystring", template);

            return writer.GetStringBuilder().ToString();
        }