【编号:25241】工具平台：减少数据库依赖

Tools/MyCommon/UserLog.cs

@@ -29,6 +29,11 @@ namespace Tools.MyCommon
         /// </summary>
         /// <param name="action"></param>
         public static void Write(string action)
+        {
+            Task.Run(() => WriteCore(action));
+        }
+
+        private static void WriteCore(string action)
         {
             lock (_locker)
             {
@@ -39,6 +44,11 @@ namespace Tools.MyCommon
                             VALUES  ( '{LoginInfo.UserName}', '{action}', GETDATE(), '{APP.TOKEN}')";
                     _db?.ExecNonSql(sql);
                 }
+                catch (Exception ex)
+                {
+                    // 日志是尽力而为能力，数据库故障不得影响业务窗口。
+                    System.Diagnostics.Debug.WriteLine("写入工具日志失败：" + ex.Message);
+                }
                 finally
                 {
                     Monitor.Pulse(_locker); //释放锁

Tools/MyCommon/wEditBasic.cs

@@ -23,7 +23,7 @@ namespace Tools.MyCommon
         /// 数据访问对象
         /// <para>通过InitDBHelper()方法初始化</para>
         /// </summary>
-        public DBHelper _db { get; private set; }
+        public DBHelper _db { get; protected set; }
         /// <summary>
         /// 全局数据集
         /// </summary>
@@ -52,12 +52,6 @@ namespace Tools.MyCommon
                 throw new Exception("数据库链接为空，请检查！");
             }
             this._db = new DBHelper(link);
-            if (!this._db.ConnectionTest())
-            {
-                this._db = null;
-                //   throw new Exception($"数据库链接无效！\r\n链接：{link}");  // 给提示即可，否则无法操作下去，即使想改链接。
-                MessageBox.Show($"数据库链接无效！\r\n链接：{link}");
-            }
         }
         /// <summary>
         /// 初始化数据库访问对象

Tools/MyData/DBHelper.cs

@@ -31,7 +31,7 @@ namespace Tools.MyData
         /// <param name="link">链接</param>
         public DBHelper(string link)
         {
-            this._link = link;
+            this._link = Utils.NormalizeDbLinkString(link);
         }
         /// <summary>
         /// 构造函数：数据访问帮助类
@@ -39,7 +39,7 @@ namespace Tools.MyData
         /// <param name="m"></param>
         public DBHelper(DbItemModel m)
         {
-            this._link = m.LinkString;
+            this._link = Utils.NormalizeDbLinkString(m.LinkString);
         }
 
         /// <summary>

Tools/MyUtils/Utils.cs

@@ -604,6 +604,21 @@ namespace Tools.MyUtils
 
         #region 数据库链接处理
 
+        /// <summary>
+        /// 为历史配置和用户输入的连接字符串补充短连接超时。
+        /// </summary>
+        public static string NormalizeDbLinkString(string link)
+        {
+            if (string.IsNullOrWhiteSpace(link))
+                return link;
+
+            var parts = link.Split(';');
+            if (parts.Any(p => p.TrimStart().StartsWith("Connect Timeout=", StringComparison.OrdinalIgnoreCase)))
+                return link;
+
+            return link.TrimEnd().TrimEnd(';') + ";Connect Timeout=5";
+        }
+
         /// <summary>
         /// 获取204的数据库链接
         /// </summary>
@@ -611,7 +626,7 @@ namespace Tools.MyUtils
         /// <returns></returns>
         public static string GetDbLinkString204(string dbName)
         {
-            return $"Password=sa;Persist Security Info=True;User ID=sa;Initial Catalog={dbName};Data Source=jhdsoft.gicp.net,3204";
+            return $"Password=sa;Persist Security Info=True;User ID=sa;Initial Catalog={dbName};Data Source=jhdsoft.gicp.net,3204;Connect Timeout=5";
         }
         /// <summary>
         /// 生成数据库链接字符串
@@ -623,7 +638,7 @@ namespace Tools.MyUtils
         /// <returns></returns>
         public static string GetDbLinkString(string link, string userId, string pwd, string dbName)
         {
-            return $"Password={pwd};Persist Security Info=True;User ID={userId};Initial Catalog={dbName};Data Source={link}";
+            return $"Password={pwd};Persist Security Info=True;User ID={userId};Initial Catalog={dbName};Data Source={link};Connect Timeout=5";
         }
         /// <summary>
         /// 生成数据库链接字符串

Tools/UI/sys/wTellUS.cs

@@ -46,12 +46,27 @@ namespace Tools.UI.sys
         {
             //初始化模块表
             this.ModuleTableList = new List<TQuery> { new TQuery("FTT_UserDemand", "SELECT * FROM FTT_UserDemand ") };
-            //初始化数据访问对象
-            this.InitDBHelper(Utils.GetDbLinkString204("FTT_Work"));
-            //初始化界面
             this.InitUI();
-            //异步装载数据
-            Task.Run(() => this.InitData());
+            Task.Run(() => this.LoadDataAsync());
+        }
+
+        private void LoadDataAsync()
+        {
+            try
+            {
+                var helper = new DBHelper(Utils.GetDbLinkString204("FTT_Work"));
+                var data = helper.GetData(this.ModuleTableList, true);
+                this.AsyncUI(() =>
+                {
+                    this._db = helper;
+                    this._ds = data;
+                    this._dt = this._ds.Tables[0];
+                });
+            }
+            catch (Exception ex)
+            {
+                this.AsyncUI(() => Utils.Tip("需求反馈数据暂时无法加载。\r\n" + ex.Message));
+            }
         }
 
         public override void InitData()
@@ -86,6 +101,11 @@ namespace Tools.UI.sys
 
         private void BtnSubmit_Click(object sender, EventArgs e)
         {
+            if (this._dt == null)
+            {
+                Utils.Tip("数据正在加载，请稍后重试！");
+                return;
+            }
             var text = this.tbDemand.Text;
             if (string.IsNullOrEmpty(text))
             {
@@ -198,6 +218,11 @@ namespace Tools.UI.sys
         /// <param name="status"></param>
         private void SetStatus(int status)
         {
+            if (this._dt == null)
+            {
+                Utils.Tip("数据正在加载，请稍后重试！");
+                return;
+            }
             if (this.dgvHistory.SelectedRows.Count == 0)
             {
                 MessageBox.Show("请先选择一行信息！", "提示");

Tools/UI/wAppModel.cs

@@ -10,6 +10,7 @@ using System.Threading.Tasks;
 using System.Windows.Forms;
 //
 using Tools.MyCommon;
+using Tools.MyData;
 using Tools.MyUtils;
 using Tools.UI.Models;
 using Tools.UI.Popups;
@@ -29,21 +30,45 @@ namespace Tools.UI
         }
         private void wAppModel_Load(object sender, EventArgs e)
         {
-            var link = Utils.GetDbLinkString204("FTT");
-            this.tstbLinkString.Text = Utils.GetDbItemModel(link).ToString();
-            this.InitDBHelper(link);
-            this.InitData();
+            this.tstbLinkString.Text = "FTT(jhdsoft.gicp.net,3204)";
+            Task.Run(() => this.LoadDataAsync());
         }
 
-        public override void InitData()
+        private void LoadDataAsync()
+        {
+            try
+            {
+                var link = Utils.GetDbLinkString204("FTT");
+                var helper = new DBHelper(link);
+                var data = LoadAppModels(helper);
+                this.AsyncUI(() =>
+                {
+                    this._db = helper;
+                    this.tstbLinkString.Text = Utils.GetDbItemModel(link).ToString();
+                    this.dgvAppModel.DataSource = data;
+                });
+            }
+            catch (Exception ex)
+            {
+                this.AsyncUI(() => Utils.Tip("应用模块数据暂时无法加载。\r\n" + ex.Message));
+            }
+        }
+
+        private DataTable LoadAppModels(DBHelper helper)
         {
             string sql = $@"
               SELECT a.ID,a.Code,a.Name,a.PrevID,b.Name AS PrevName,a.ModuleName 
               FROM dbo.App_SysBusinessModel a
               INNER JOIN dbo.App_SysBusinessModel b ON a.PrevID=b.ID
               WHERE {strWhere} ORDER BY A.ID DESC";
+            return helper.GetDataTable(sql, "结果列表");
+        }
 
-            dgvAppModel.DataSource = this._db.GetDataTable(sql, "结果列表");
+        public override void InitData()
+        {
+            if (this._db == null)
+                return;
+            this.dgvAppModel.DataSource = LoadAppModels(this._db);
         }
 
         private void tsbDB_Click(object sender, EventArgs e)

Tools/UI/wAuditDemo.cs

@@ -47,8 +47,18 @@ namespace Tools.UI
 
         private void wAuditDemo_Load(object sender, EventArgs e)
         {
-            this.InitData();
-            this.InitUI();
+            Task.Run(() =>
+            {
+                try
+                {
+                    this.InitData();
+                    this.AsyncUI(() => this.InitUI());
+                }
+                catch (Exception ex)
+                {
+                    this.AsyncUI(() => Utils.Tip("审批示例数据暂时无法加载。\r\n" + ex.Message));
+                }
+            });
         }
 
         public override void InitData()
@@ -56,7 +66,7 @@ namespace Tools.UI
             #region 初始化数据库对象
 
             string link = Utils.GetDbLinkString204("FTT_PDM");
-            this.InitDBHelper(link);
+            this._db = new DBHelper(link);
 
             #endregion
             #region 初始化模块信息

Tools/UI/wDbLinkMngr.cs

@@ -24,19 +24,35 @@ namespace Tools.UI
         }
         private void wEvaluationOfEmployee_Load(object sender, EventArgs e)
         {
-            //初始化保存结构
-            this.ModuleTableList = new List<MyData.TQuery> {
-                new TQuery("FTT_DbLinkManager"),
-            };
-            //初始化数据库链接
-            var link = Utils.GetDbLinkString204("FTT_Work");
-            this.InitDBHelper(link);
-            //初始化
-            this.InitData();
             this.InitUI();
+            Task.Run(() => this.LoadDataAsync());
         }
+
+        private void LoadDataAsync()
+        {
+            try
+            {
+                var tableList = new List<MyData.TQuery> { new TQuery("FTT_DbLinkManager") };
+                var helper = new DBHelper(Utils.GetDbLinkString204("FTT_Work"));
+                var data = helper.GetData(tableList, true);
+                this.AsyncUI(() =>
+                {
+                    this._db = helper;
+                    this.ModuleTableList = tableList;
+                    this._ds = data;
+                    this.dgvDetail.DataSource = this._ds.Tables[0].DefaultView;
+                });
+            }
+            catch (Exception ex)
+            {
+                this.AsyncUI(() => Utils.Tip("数据库连接记录暂时无法加载。\r\n" + ex.Message));
+            }
+        }
+
         public override void InitData()
         {
+            if (this._db == null)
+                return;
             this._ds = this._db.GetData(this.ModuleTableList, true);
         }
         public override void InitUI()
@@ -47,6 +63,11 @@ namespace Tools.UI
         }
         public override bool SaveCheck()
         {
+            if (this._ds == null || this._db == null)
+            {
+                Utils.Tip("数据库尚未连接，请稍后重试！");
+                return false;
+            }
             if (this.tbNote.Text == string.Empty)
             {
                 Utils.Tip("描述必须输入！");

Tools/UI/wEvaluationOfEmployee.cs

@@ -43,19 +43,38 @@ namespace Tools.UI
         }
         private void wEvaluationOfEmployee_Load(object sender, EventArgs e)
         {
-            //初始化保存结构
-            this.ModuleTableList = new List<MyData.TQuery> {
-                new TQuery("FTT_EvaluationOfEmployee"),
-            };
-            //初始化数据库链接
-            var link = Utils.GetDbLinkString204("FTT_Work");
-            this.InitDBHelper(link);
-            //初始化
-            this.InitData();
-            this.InitUI();
+            //窗口先显示，数据库加载在后台执行。
+            Task.Run(() => this.LoadDataAsync());
+        }
 
-            IsShown = true;
-            this.tscbMonth.SelectedIndex = 0;
+        private void LoadDataAsync()
+        {
+            try
+            {
+                var tableList = new List<MyData.TQuery> { new TQuery("FTT_EvaluationOfEmployee") };
+                var helper = new DBHelper(Utils.GetDbLinkString204("FTT_Work"));
+                var oldDb = this._db;
+                var oldTables = this.ModuleTableList;
+                this._db = helper;
+                this.ModuleTableList = tableList;
+                this.InitData();
+                var data = this._ds;
+                this._db = oldDb;
+                this.ModuleTableList = oldTables;
+                this.AsyncUI(() =>
+                {
+                    this._db = helper;
+                    this.ModuleTableList = tableList;
+                    this._ds = data;
+                    this.InitUI();
+                    this.IsShown = true;
+                    this.tscbMonth.SelectedIndex = 0;
+                });
+            }
+            catch (Exception ex)
+            {
+                this.AsyncUI(() => Utils.Tip("员工考核数据暂时无法加载。\r\n" + ex.Message));
+            }
         }
         public override void InitData()
         {
@@ -102,9 +121,19 @@ namespace Tools.UI
             return true;
         }
 
+        private bool EnsureDataLoaded()
+        {
+            if (this._db != null && this._ds != null && this._ds.Tables.Count > 0)
+                return true;
+            Utils.Tip("数据正在加载，请稍后重试！");
+            return false;
+        }
+
         //事件：新增记录
         private void tsbAdd_Click(object sender, EventArgs e)
         {
+            if (!this.EnsureDataLoaded())
+                return;
             if (!CheckBeforeEdit())
                 return;
             IsAdd = true;
@@ -120,6 +149,8 @@ namespace Tools.UI
         //事件：更新记录
         private void tsbUpdate_Click(object sender, EventArgs e)
         {
+            if (!this.EnsureDataLoaded())
+                return;
             if (!CheckBeforeEdit())
                 return;
             if (CurrentEditRow == null)
@@ -142,6 +173,8 @@ namespace Tools.UI
         //事件：生成报告
         private void tsbGenReport_Click(object sender, EventArgs e)
         {
+            if (!this.EnsureDataLoaded())
+                return;
             if (this.tscbMonth.Text.Trim() == "")
             {
                 Utils.Tip("请先选择月份！");

Tools/UI/wFileShare.cs

@@ -46,8 +46,10 @@ namespace Tools.UI
         }
         public override void InitData()
         {
-            this.AsyncUI(() => {
-                this._ds = this._db.GetData(this.ModuleTableList, true);
+            var dataSet = this._db.GetData(this.ModuleTableList, true);
+            this.AsyncUI(() =>
+            {
+                this._ds = dataSet;
                 this.dgvDetail.DataSource = this._ds.Tables[0].DefaultView;
                 //为优化取数速度虚构dData列，虚构列默认为只读，这里改为可编辑，方便更新操作
                 this._ds.Tables[0].Columns["dData"].ReadOnly = false;

Tools/UI/wTaskBoard.cs

@@ -37,27 +37,68 @@ namespace Tools.UI
 
         private void wTaskBoard_Load(object sender, EventArgs e)
         {
-            //初始化数据访问对象
-            var link = Utils.GetDbLinkString204("FTT_Work");
-            this._db = new DBHelper(link);
-            //初始化界面
+            //窗口先显示，报表数据在后台加载。
             this.dataGridView1.AllowUserToAddRows = false;
             this.dataGridView1.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
-            //初始化数据
-            this.Initialize();
+            Task.Run(() => this.LoadDataAsync());
         }
-        private void wTaskBoard_Shown(object sender, EventArgs e)
+        private void LoadDataAsync()
+        {
+            try
+            {
+                var helper = new DBHelper(Utils.GetDbLinkString204("FTT_Work"));
+                var data = LoadTaskData(helper);
+                this.AsyncUI(() =>
+                {
+                    this._db = helper;
+                    this._dt = data;
+                    this.BindTaskData();
+                });
+            }
+            catch (Exception ex)
+            {
+                this.AsyncUI(() => Utils.Tip("任务看板数据暂时无法加载。\r\n" + ex.Message));
+            }
+        }
+
+        private DataTable LoadTaskData(DBHelper helper)
+        {
+            var sql = $@"EXEC dbo.SP_RPT_KFDJDB_20191031 @PageSize = 1000,@PageIndex = 1, @Flag = 1, @WorkTeamID = 1";
+            var data = helper.GetDataTable(sql, "TaskDetail", false);
+            foreach (DataColumn dc in data.Columns)
+            {
+                if (dc.ColumnName.Contains("Color"))
+                {
+                    this.ColorColumn = dc.ColumnName;
+                    continue;
+                }
+                dc.ColumnName = dc.ColumnName.Split('_')[0];
+            }
+            return data;
+        }
+
+        private void BindTaskData()
         {
-            //初始化单元格背景
+            this.SetComboItems(this.cbProjectName, "项目名称");
+            this.SetComboItems(this.cbInChargeUser, "负责人");
+            this.SetComboItems(this.cbTaskState, "状态");
+            this._dt.DefaultView.Sort = "[项目交期] DESC";
+            this.dataGridView1.DataSource = this._dt.DefaultView;
             this.SetGridForeColor();
+        }
+        private void wTaskBoard_Shown(object sender, EventArgs e)
+        {
             //双击查看任务明细初始化
-            this._html = File.ReadAllText($@"{Utils.TestPath}\TaskDetail.html");
+            this._html = File.Exists($@"{Utils.TestPath}\TaskDetail.html")
+                ? File.ReadAllText($@"{Utils.TestPath}\TaskDetail.html") : "<p>[describle]</p>";
             this.frmView = new wBasic() { BackColor = Color.White, Size = new Size(700, 500) };
             this._browser = new WebBrowser() { Parent = this.frmView, Dock = DockStyle.Fill };
             this.frmView.FormClosing += FrmView_FormClosing;
             //表格事件
             this.dataGridView1.Sorted += DataGridView1_Sorted;
             this.dataGridView1.DoubleClick += DataGridView1_DoubleClick;
+            if (this._dt != null)
+                this.SetGridForeColor();
         }
 
         /// <summary>

Tools/UI/wUser.cs

@@ -54,14 +54,25 @@ namespace Tools.UI
 
         public override void InitData()
         {
-            this.AsyncUI(() => {
-                var link = Utils.GetDbLinkString204("FTT_Work");
-                this.InitDBHelper(link);
-                this.ModuleTableList = new List<TQuery> { new TQuery("AC_User", "SELECT * FROM dbo.AC_User") };
-                this._ds = this._db.GetData(this.ModuleTableList, true);
-                //图片分离兼容处理
+            var link = Utils.GetDbLinkString204("FTT_Work");
+            var helper = new DBHelper(link);
+            var tableList = new List<TQuery> { new TQuery("AC_User", "SELECT * FROM dbo.AC_User") };
+            var dataSet = helper.GetData(tableList, true);
+            try
+            {
+                // 文件服务配置和图片下载也属于网络操作，不能放到 UI 线程。
                 SegPictureConfig.Init(link);
-                Utils.FetchImage(this._ds);
+                Utils.FetchImage(dataSet);
+            }
+            catch (Exception ex)
+            {
+                System.Diagnostics.Debug.WriteLine("文件服务不可用：" + ex.Message);
+            }
+            this.AsyncUI(() =>
+            {
+                this._db = helper;
+                this.ModuleTableList = tableList;
+                this._ds = dataSet;
                 //绑定数据源
                 this.dgvDetail.DataSource = this._ds.Tables[0].DefaultView;
             });

Tools/wMain.cs

@@ -55,11 +55,14 @@ namespace Tools
         {
             //生成标识
             APP.TOKEN = Guid.NewGuid().ToString();
-            //初始化数据库链接
-            var link = Utils.GetDbLinkString204("FTT_Work");
-            this._db = new DBHelper(link);
-            //初始化登录信息
-            this.InitLoginInfo();
+            // 主界面和静态菜单不依赖远程数据库；登录/在线功能按需创建访问对象。
+            this._db = null;
+            //后台恢复登录信息；查询失败时保持访客状态。
+            Task.Run(() =>
+            {
+                try { this.InitLoginInfo(); }
+                catch (Exception ex) { Debug.WriteLine("恢复登录信息失败：" + ex.Message); }
+            });
             //渲染菜单
             this.RenderMenu();
         }
@@ -102,17 +105,29 @@ namespace Tools
             this.btnMaximized.MouseLeave += BtnWinCtrl_MouseLeave;
             this.btnClosed.MouseEnter += BtnClosed_MouseEnter;
             this.btnClosed.MouseLeave += BtnClosed_MouseLeave;
-            //版本号处理
-            Task.Run(() => this.AsyncUI(() => {
-                var dt = this._db.GetDataTable($@"
+            //版本号处理：数据库访问必须在后台完成，失败不影响主界面。
+            Task.Run(() =>
+            {
+                try
+                {
+                    using (var db = new DBHelper(Utils.GetDbLinkString204("FTT_Work")))
+                    {
+                        var dt = db.GetDataTable($@"
                         SELECT TOP 1 CAST(DATENAME(YEAR, UDate) AS VARCHAR(10)) + '.' + CAST(DATENAME(MONTH, UDate) AS VARCHAR(10)) + '.' + CAST(COUNT(*) AS VARCHAR(10)) AS SysVersion 
                         FROM dbo.FTT_AutoUpdate
                         GROUP BY DATENAME(YEAR, UDate), DATENAME(MONTH, UDate)
                         ORDER BY DATENAME(YEAR, UDate) DESC, DATENAME(MONTH, UDate) DESC", "version", false);
-                this.lbSysVersion.Text = dt.DefaultView.Count == 0 ? $"2021.0.1" : $"{dt.DefaultView[0][0]}";
-            }));
-            //日志记录
-            UserLog.Write("打开系统");
+                        var version = dt.DefaultView.Count == 0 ? "2021.0.1" : $"{dt.DefaultView[0][0]}";
+                        this.AsyncUI(() => this.lbSysVersion.Text = version);
+                    }
+                }
+                catch (Exception ex)
+                {
+                    Debug.WriteLine("读取远程版本失败：" + ex.Message);
+                }
+            });
+            //数据库不可用时，日志不能影响窗口生命周期。
+            try { UserLog.Write("打开系统"); } catch { }
         }
 
         private void WMain_FormClosing(object sender, FormClosingEventArgs e)
@@ -388,7 +403,12 @@ namespace Tools
             var m = Utils.GetJsonConfig<LoginMemory>();
             //检查更新
             var updateTime = m.UpdateTime;
-            var dt =this._db.GetDataTable($"SELECT TOP 1 UDate, URemark FROM dbo.FTT_AutoUpdate WHERE UDate > '{updateTime}'  ORDER BY UDate DESC", "FTT_AutoUpdate");
+            var db = this._db;
+            if (db == null)
+                db = new DBHelper(Utils.GetDbLinkString204("FTT_Work"));
+            try
+            {
+                var dt = db.GetDataTable($"SELECT TOP 1 UDate, URemark FROM dbo.FTT_AutoUpdate WHERE UDate > '{updateTime}'  ORDER BY UDate DESC", "FTT_AutoUpdate");
             if (dt.DefaultView.Count > 0)
             {
                 var drv = dt.DefaultView[0];
@@ -407,22 +427,40 @@ namespace Tools
                 //退出运行环境
                 Application.Exit();
             }
-            else if(!IsSilentWhenNotFound)
+            else if (!IsSilentWhenNotFound)
             {
                 Utils.Tip("当前已是最新版本！");
             }
-         }
+            }
+            catch (Exception ex)
+            {
+                if (!IsSilentWhenNotFound)
+                    Utils.Tip("暂时无法连接更新服务，请稍后重试。\r\n" + ex.Message);
+            }
+        }
+
         /// <summary>
         /// 查看更新记录
         /// </summary>
         private void ViewUpdateLog()
         {
             StringBuilder sb = new StringBuilder("*注：仅展示最近20条更新记录\r\n");
-            var dt = this._db.GetDataTable("SELECT TOP 20 ROW_NUMBER() OVER(ORDER BY ID) AS SN, UDate, URemark FROM dbo.FTT_AutoUpdate ORDER BY ID DESC", "Log", false);
-            foreach (DataRowView r in dt.DefaultView)
+            var db = this._db;
+            if (db == null)
+                db = new DBHelper(Utils.GetDbLinkString204("FTT_Work"));
+            try
             {
-                var date = (r["UDate"] as DateTime?)?.ToString("yyyy/MM/dd HH:mm:ss.fff");
-                sb.Append($"{new string('-', 100)}\r\n版本序号：{r["SN"]}\r\n更新时间：{date}\r\n{r["URemark"].ToString().Trim()}\r\n");
+                var dt = db.GetDataTable("SELECT TOP 20 ROW_NUMBER() OVER(ORDER BY ID) AS SN, UDate, URemark FROM dbo.FTT_AutoUpdate ORDER BY ID DESC", "Log", false);
+                foreach (DataRowView r in dt.DefaultView)
+                {
+                    var date = (r["UDate"] as DateTime?)?.ToString("yyyy/MM/dd HH:mm:ss.fff");
+                    sb.Append($"{new string('-', 100)}\r\n版本序号：{r["SN"]}\r\n更新时间：{date}\r\n{r["URemark"].ToString().Trim()}\r\n");
+                }
+            }
+            catch (Exception ex)
+            {
+                Utils.Tip("暂时无法读取更新记录。\r\n" + ex.Message);
+                return;
             }
             //
             Utils.Tip(sb.ToString(), 600, 400);
@@ -439,8 +477,7 @@ namespace Tools
                 if (result == DialogResult.No)
                     return;
             }
-            //日志记录
-            UserLog.Write("退出系统");
+            try { UserLog.Write("退出系统"); } catch { }
             //关闭窗体
             this.Close();
         }
@@ -530,8 +567,7 @@ namespace Tools
                 frm.Dock = DockStyle.Fill;
                 frm.Show();
             }
-            //日志记录
-            UserLog.Write($"打开模块：{page.Text}");
+            try { UserLog.Write($"打开模块：{page.Text}"); } catch { }
             //选中标签页
             this.tabControl1.SelectedTab = page;
             page.Refresh();
@@ -544,7 +580,7 @@ namespace Tools
         {
             if (page.Name != nameof(HomePage))
             {
-                UserLog.Write($"关闭模块：{page.Text}"); //日志记录
+                try { UserLog.Write($"关闭模块：{page.Text}"); } catch { } //日志记录
                 this.OpenedList.Remove(page.Text); //移除列表
                 this.tabControl1.TabPages.Remove(page); //移除页面
                 
@@ -655,6 +691,9 @@ namespace Tools
         private void InitLoginInfo()
         {
             var m = Utils.GetJsonConfig<LoginMemory>();
+            var db = this._db;
+            if (db == null)
+                db = new DBHelper(Utils.GetDbLinkString204("FTT_Work"));
             //获取登录信息
             var loginInfo = m.LoginInfo; 
             if (!string.IsNullOrEmpty(loginInfo))
@@ -666,7 +705,7 @@ namespace Tools
                     CAST(CASE WHEN UserType = 5311 THEN 1 ELSE 0 END AS BIT) AS IsStaff
                 FROM dbo.AC_User
                 WHERE ISNULL(IsStop, 0) = 0 and ID = {Utils.Decryptor(loginInfo)}";
-                var dt = this._db.GetDataTable(sql, "user", false);
+                var dt = db.GetDataTable(sql, "user", false);
                 if (dt.DefaultView.Count > 0)
                 {
                     var userName = dt.DefaultView[0]["UserName"].ToString();
@@ -694,7 +733,11 @@ namespace Tools
                 }
             }
             //设置登录用户名
-            this.SetLoginUserName();
+            this.AsyncUI(() =>
+            {
+                this.SetLoginUserName();
+                this.RenderMenu();
+            });
         }
         /// <summary>
         /// 显示登录窗口