fix: 收敛旧控件资源与后台线程生命周期

插件库/Lskj.Control/ModuleEx.cs

@@ -152,6 +152,34 @@ namespace Lskj.Control
             InitializeComponent();
         }
 
+        /// <summary>
+        /// Excel 控件包含 SpreadsheetControl、BarManager 和命令注册项，
+        /// 普通表格模块不应在设计器初始化阶段创建这些重型资源。
+        /// </summary>
+        private ExcelControlEx EnsureExcelControl()
+        {
+            if (this.excelControlEx1 != null && !this.excelControlEx1.IsDisposed)
+            {
+                return this.excelControlEx1;
+            }
+
+            this.excelControlEx1 = new ExcelControlEx
+            {
+                AddEnabled = true,
+                DeleteEnabled = true,
+                Dock = DockStyle.Fill,
+                Margin = new Padding(6),
+                Name = "excelControlEx1",
+                PrintEnabled = true,
+                SaveEnabled = true,
+                TabIndex = 1,
+                Visible = false
+            };
+            this.pl_right.Controls.Add(this.excelControlEx1);
+            this.ExcelControlObj = this.excelControlEx1;
+            return this.excelControlEx1;
+        }
+
         /// <summary>
         /// <para>说明：创建界面</para>
         /// <para>创建人：龚宇超</para>
@@ -284,20 +312,22 @@ namespace Lskj.Control
                     }
                     if (this.IsExcel)
                     {
-                        //由于创建对象时候要注册,所以动态构造这控件不在设计器进行否则表格模式也会弹出注册
+                        // 只有 Excel 模式才创建 Spreadsheet/Bar 相关资源。
+                        ExcelControlEx excelControl = EnsureExcelControl();
                         this.ModuleGridDetailObj.Visible = false;
                         this.repModelDetailEx.Visible = false;
-                        this.excelControlEx1.Visible = true;
+                        excelControl.Visible = true;
+                        excelControl.BringToFront();
                         if (!Model.DataCaches.GetValue(this, "BasePrimaryKey", out SysModel.ParmaryKey))
                         {
                             SysModel.ParmaryKey = BaseImpl.GetBasePrimaryKey(this.Model.ModuleCode);
                         }
-                        this.excelControlEx1.AddEnabled = this.SysModel.AddEnable;
-                        this.excelControlEx1.DeleteEnabled = this.SysModel.DeleteEnable;
-                        this.excelControlEx1.PrintEnabled = !string.IsNullOrWhiteSpace(this.SysModel.PrintFile);
-                        this.excelControlEx1.SaveEnabled = this.SysModel.ModifyEnable;
-                        this.excelControlEx1.CreateFile();
-                        this.excelControlEx1.SaveCallBack += new EventHandler(OnExcelSaveClick);
+                        excelControl.AddEnabled = this.SysModel.AddEnable;
+                        excelControl.DeleteEnabled = this.SysModel.DeleteEnable;
+                        excelControl.PrintEnabled = !string.IsNullOrWhiteSpace(this.SysModel.PrintFile);
+                        excelControl.SaveEnabled = this.SysModel.ModifyEnable;
+                        excelControl.CreateFile();
+                        excelControl.SaveCallBack += new EventHandler(OnExcelSaveClick);
                         if (!Model.DataCaches.GetValue(this, "BaseGridColumns", out DataTable dtGridColumns))
                         {
                             dtGridColumns = BaseModuleImpl.GetBaseGridColumns(this.Model.ModuleCode);
@@ -314,8 +344,10 @@ namespace Lskj.Control
                     }
                     else
                     {
-
-                        this.excelControlEx1.Visible = false;
+                        if (this.excelControlEx1 != null)
+                        {
+                            this.excelControlEx1.Visible = false;
+                        }
                         if (SysModel.isReplacMainDetail == "1")
                         {
                             this.ModuleGridDetailObj.Visible = false;