diff --git a/插件库/Lskj.Control/AutoGridLookUp/ExtendedReturnModuleSourceResolver.cs b/插件库/Lskj.Control/AutoGridLookUp/ExtendedReturnModuleSourceResolver.cs
new file mode 100644
index 0000000..7ff0cf7
--- /dev/null
+++ b/插件库/Lskj.Control/AutoGridLookUp/ExtendedReturnModuleSourceResolver.cs
@@ -0,0 +1,49 @@
+using Lskj.Control.MultiModelLookUp;
+using System;
+using System.Collections.Generic;
+
+namespace Lskj.Control
+{
+    /// <summary>
+    /// 按模块编号延迟读取模块数据源 SQL。只缓存 SQL 文本，不加载业务数据。
+    /// </summary>
+    internal sealed class ExtendedReturnModuleSourceResolver
+    {
+        private readonly object syncRoot = new object();
+        private readonly Dictionary<string, string> sourceSqlByModule =
+            new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
+
+        public string Resolve(string moduleCode)
+        {
+            moduleCode = (moduleCode ?? string.Empty).Trim();
+            if (moduleCode.Length == 0)
+            {
+                throw new InvalidOperationException("扩展模块搜索的模块编号不能为空。");
+            }
+
+            lock (syncRoot)
+            {
+                string cachedSql;
+                if (sourceSqlByModule.TryGetValue(moduleCode, out cachedSql))
+                {
+                    return cachedSql;
+                }
+
+                using (FrmModelLookUp lookup = new FrmModelLookUp(moduleCode, true))
+                {
+                    string sourceSql = lookup.SysModel == null
+                        ? string.Empty
+                        : lookup.SysModel.MenuSql;
+                    if (string.IsNullOrWhiteSpace(sourceSql))
+                    {
+                        throw new InvalidOperationException(
+                            string.Format("模块“{0}”未配置数据源 SQL。", moduleCode));
+                    }
+
+                    sourceSqlByModule.Add(moduleCode, sourceSql);
+                    return sourceSql;
+                }
+            }
+        }
+    }
+}
diff --git a/插件库/Lskj.Control/AutoGridLookUp/LabelExtendedReturnSearchEdit.cs b/插件库/Lskj.Control/AutoGridLookUp/LabelExtendedReturnSearchEdit.cs
index e72130e..957b726 100644
--- a/插件库/Lskj.Control/AutoGridLookUp/LabelExtendedReturnSearchEdit.cs
+++ b/插件库/Lskj.Control/AutoGridLookUp/LabelExtendedReturnSearchEdit.cs
@@ -18,7 +18,7 @@ using System.Windows.Forms;
 namespace Lskj.Control
 {
     /// <summary>
-    /// MyControl 中的 181 扩展搜索控件。业务实际值与界面显示文本相互独立，
+    /// MyControl 中的 173/174 扩展搜索控件。业务实际值与界面显示文本相互独立，
     /// 数据源仅在弹出框打开或用户执行查询时按需访问。
     /// </summary>
     public sealed class LabelExtendedReturnSearchEdit : BaseUserControl
@@ -152,7 +152,7 @@ namespace Lskj.Control
 
         /// <summary>
         /// BaseUserControl 的 EditText 仍用于常规赋值入口；读取时返回界面显示文本，
-        /// MyControl.GetControlValue 对 181 会显式读取 EditValue。
+        /// MyControl.GetControlValue 对 173/174 会显式读取 EditValue。
         /// </summary>
         public override string EditText
         {
@@ -472,7 +472,14 @@ namespace Lskj.Control
         {
             if (Model == null) throw new InvalidOperationException("扩展返回控件配置不存在。");
             if (ControlObj == null) throw new InvalidOperationException("扩展返回控件未关联 MyControl。");
-            if (string.IsNullOrWhiteSpace(Model.SourceSql))
+            if (Model.FieldType == ControlType.LabModuleSelectReturnIdExtended)
+            {
+                if (string.IsNullOrWhiteSpace(Model.AddModuleId))
+                {
+                    throw new InvalidOperationException("扩展模块搜索的模块编号不能为空。");
+                }
+            }
+            else if (string.IsNullOrWhiteSpace(Model.SourceSql))
             {
                 throw new InvalidOperationException("搜索数据源 SQL 不能为空。");
             }
@@ -576,7 +583,7 @@ namespace Lskj.Control
 
         private string BuildSourceSql()
         {
-            string sourceSql = Model.SourceSql;
+            string sourceSql = GetBaseSourceSql();
             if (ControlObj != null)
             {
                 sourceSql = ControlObj.ReplaceControlValue(sourceSql);
@@ -585,6 +592,27 @@ namespace Lskj.Control
             return ReplaceHelper.ReplaceParam(sourceSql);
         }
 
+        private string GetBaseSourceSql()
+        {
+            if (Model == null)
+            {
+                throw new InvalidOperationException("扩展返回控件配置不存在。");
+            }
+            if (Model.FieldType == ControlType.LabModuleSelectReturnIdExtended)
+            {
+                if (ControlObj == null)
+                {
+                    throw new InvalidOperationException("扩展返回控件未关联 MyControl。");
+                }
+                return ControlObj.ResolveExtendedReturnModuleSourceSql(Model.AddModuleId);
+            }
+            if (string.IsNullOrWhiteSpace(Model.SourceSql))
+            {
+                throw new InvalidOperationException("搜索数据源 SQL 不能为空。");
+            }
+            return Model.SourceSql;
+        }
+
         private void StartSearch(string keyword)
         {
             SearchRequest request = new SearchRequest();
diff --git a/插件库/Lskj.Control/GridControlEx.ExtendedReturn.cs b/插件库/Lskj.Control/GridControlEx.ExtendedReturn.cs
index 9c3cc91..1a54285 100644
--- a/插件库/Lskj.Control/GridControlEx.ExtendedReturn.cs
+++ b/插件库/Lskj.Control/GridControlEx.ExtendedReturn.cs
@@ -8,7 +8,6 @@ using DevExpress.XtraGrid.Views.Base;
 using DevExpress.XtraGrid.Views.Grid;
 using Lskj.Business.Impl;
 using Lskj.Control.Model;
-using Lskj.Control.MultiModelLookUp;
 using Lskj.Core;
 using Lskj.Util;
 using System;
@@ -31,6 +30,8 @@ namespace Lskj.Control
         private const int ExtendedLookupMinimumPopupWidth = 360;
 
         private readonly object mExtendedReturnSyncRoot = new object();
+        private readonly ExtendedReturnModuleSourceResolver mExtendedReturnModuleSourceResolver =
+            new ExtendedReturnModuleSourceResolver();
         private readonly Dictionary<string, RepositoryItemPopupContainerEdit> mExtendedReturnSearchEditors =
             new Dictionary<string, RepositoryItemPopupContainerEdit>(StringComparer.OrdinalIgnoreCase);
         private readonly Dictionary<string, ExtendedReturnPopupContext> mExtendedReturnPopupContexts =
@@ -84,7 +85,7 @@ namespace Lskj.Control
         }
 
         /// <summary>
-        /// 初始化扩展返回类型。180 仅创建模块选择按钮，181 仅创建空搜索编辑器，
+        /// 初始化扩展返回类型。173、174 共用空搜索编辑器，
         /// 两种类型均不在表格初始化时访问业务数据源。
         /// </summary>
         private void InitExtendedReturn(GridColumn column, GridColumnModel model)
@@ -94,11 +95,7 @@ namespace Lskj.Control
             CacheExtendedReturnDisplayField(model);
             AttachExtendedReturnDisplayEvent();
             AttachExtendedReturnDisposeEvent();
-            if (model.FieldType == ControlType.LabModuleSelectReturnIdExtended)
-            {
-                InitExtendedModuleReturn(column, model);
-            }
-            else if (model.FieldType == ControlType.LabSearchReturnIdExtended)
+            if (IsExtendedReturnType(model))
             {
                 InitExtendedSearchReturn(column, model);
             }
@@ -125,25 +122,6 @@ namespace Lskj.Control
             DisposeExtendedReturnRequestTimers();
         }
 
-        private void InitExtendedModuleReturn(GridColumn column, GridColumnModel model)
-        {
-            RepositoryItemButtonEdit buttonEdit = new RepositoryItemButtonEdit();
-            buttonEdit.NullText = string.Empty;
-            buttonEdit.AllowNullInput = DefaultBoolean.True;
-            buttonEdit.TextEditStyle = TextEditStyles.DisableTextEditor;
-            buttonEdit.Tag = model;
-            buttonEdit.Buttons.Clear();
-            buttonEdit.Buttons.Add(new EditorButton(ButtonPredefines.Ellipsis));
-            buttonEdit.ButtonClick += ExtendedModuleReturn_ButtonClick;
-            buttonEdit.CustomDisplayText += ExtendedModuleReturn_CustomDisplayText;
-
-            this.gridControl.RepositoryItems.Add(buttonEdit);
-            column.ColumnEdit = buttonEdit;
-            column.OptionsColumn.ReadOnly = true;
-            column.FilterMode = ColumnFilterMode.DisplayText;
-            this.mControlList.Add(model);
-        }
-
         private void InitExtendedSearchReturn(GridColumn column, GridColumnModel model)
         {
             RepositoryItemPopupContainerEdit searchEdit = CreateExtendedReturnSearchEdit(model);
@@ -245,23 +223,6 @@ namespace Lskj.Control
             }
         }
 
-        private void ExtendedModuleReturn_CustomDisplayText(object sender, CustomDisplayTextEventArgs e)
-        {
-            try
-            {
-                RepositoryItemButtonEdit editor = sender as RepositoryItemButtonEdit;
-                GridColumnModel model = editor == null ? null : editor.Tag as GridColumnModel;
-                DataRow row = this.GridView.GetFocusedDataRow();
-                string displayField = GetExtendedReturnDisplayField(model);
-                if (row == null || string.IsNullOrWhiteSpace(displayField) || !row.Table.Columns.Contains(displayField)) return;
-
-                e.DisplayText = row[displayField] == DBNull.Value ? string.Empty : row[displayField] + string.Empty;
-            }
-            catch
-            {
-            }
-        }
-
         private static bool IsExtendedReturnType(GridColumnModel model)
         {
             return model != null &&
@@ -297,7 +258,7 @@ namespace Lskj.Control
         private void GridView_CustomRowCellEditForEditing_ExtendedReturn(object sender, CustomRowCellEditEventArgs e)
         {
             GridColumnModel model = e.Column == null ? null : e.Column.Tag as GridColumnModel;
-            if (model == null || model.FieldType != ControlType.LabSearchReturnIdExtended) return;
+            if (!IsExtendedReturnType(model)) return;
 
             RepositoryItemPopupContainerEdit searchEdit;
             if (!mExtendedReturnSearchEditors.TryGetValue(model.FieldName, out searchEdit)) return;
@@ -331,8 +292,7 @@ namespace Lskj.Control
         private void GridView_RowCellClick_ExtendedReturn(object sender, RowCellClickEventArgs e)
         {
             GridColumnModel model = e.Column == null ? null : e.Column.Tag as GridColumnModel;
-            if (e.Button != MouseButtons.Left || model == null ||
-                model.FieldType != ControlType.LabSearchReturnIdExtended ||
+            if (e.Button != MouseButtons.Left || !IsExtendedReturnType(model) ||
                 !e.Column.OptionsColumn.AllowEdit) return;
 
             this.GridView.FocusedRowHandle = e.RowHandle;
@@ -531,7 +491,7 @@ namespace Lskj.Control
 
         private string ResolveExtendedReturnSourceSql(GridColumnModel model, DataRow row)
         {
-            string sqlValue = model == null ? string.Empty : model.SqlSource;
+            string sqlValue = GetExtendedReturnBaseSourceSql(model);
             if (this.ParentControl != null)
             {
                 sqlValue = this.ParentControl.ReplaceParentControlValue(sqlValue);
@@ -546,6 +506,23 @@ namespace Lskj.Control
             return ReplaceHelper.ReplaceParam(sqlValue);
         }
 
+        private string GetExtendedReturnBaseSourceSql(GridColumnModel model)
+        {
+            if (model == null)
+            {
+                throw new InvalidOperationException("扩展返回列配置不存在。");
+            }
+            if (model.FieldType == ControlType.LabModuleSelectReturnIdExtended)
+            {
+                return mExtendedReturnModuleSourceResolver.Resolve(model.addModuleld);
+            }
+            if (string.IsNullOrWhiteSpace(model.SqlSource))
+            {
+                throw new InvalidOperationException("扩展搜索数据源 SQL 不能为空。");
+            }
+            return model.SqlSource;
+        }
+
         private static void ValidateExtendedReturnMembers(GridColumnModel model)
         {
             if (model == null) throw new InvalidOperationException("扩展返回列配置不存在。");
@@ -1158,61 +1135,6 @@ namespace Lskj.Control
             return TryCommitExtendedReturnValues(businessRow, stagedValues, out error);
         }
 
-        private void ExtendedModuleReturn_ButtonClick(object sender, ButtonPressedEventArgs e)
-        {
-            ButtonEdit buttonEdit = sender as ButtonEdit;
-            GridColumnModel model = buttonEdit == null ? null : buttonEdit.Properties.Tag as GridColumnModel;
-            if (model == null) return;
-
-            try
-            {
-                DataRow businessRow = this.GridView.GetFocusedDataRow();
-                IList<ExtendedReturnFieldMapping> mappings = ValidateExtendedReturnBusinessConfiguration(model, businessRow);
-
-                using (FrmModelLookUp2 modelLookUp = new FrmModelLookUp2(model.addModuleld, true))
-                {
-                    modelLookUp.ConfigureColumnMode = model.ConfigureColumnMode;
-                    modelLookUp.ValueField = model.ValueMember;
-                    modelLookUp.TextField = model.TextMember;
-                    modelLookUp.SourceSQL = model.SqlSource;
-                    modelLookUp.IsType = ControlType.LabSelectReturnIdNew;
-                    modelLookUp.ValueMember = model.ValueMember;
-                    modelLookUp.Tag = model;
-                    modelLookUp.EditText = buttonEdit.Text;
-                    modelLookUp.EditValue = buttonEdit.EditValue + string.Empty;
-                    modelLookUp.CurrentOperColumnKey = Model.ModuleCode + "_" + model.FieldName;
-
-                    string sourceSql = modelLookUp.SysModel.MenuSql.Replace("#", string.Empty) + model.SplicingConditions;
-                    if (this.ParentControl != null)
-                    {
-                        sourceSql = this.ParentControl.ReplaceControlValue(sourceSql);
-                    }
-                    sourceSql = ReplaceHelper.ReplaceRowParam(this.GridView.GetFocusedDataRow(), sourceSql);
-                    modelLookUp.NewSourceSQL = sourceSql;
-                    modelLookUp.InitControls(modelLookUp.UnionModuleCodel);
-                    ValidateExtendedReturnSourceColumns(modelLookUp.DataSource.Columns, model, mappings);
-
-                    if (modelLookUp.ShowDialog() != DialogResult.OK) return;
-
-                    string error;
-                    if (!TryApplyExtendedReturnMappings(businessRow, modelLookUp.GetSelectedResultRow(), model, out error))
-                    {
-                        MessageUtil.Show("扩展返回字段配置错误：" + error);
-                        return;
-                    }
-
-                    buttonEdit.EditValue = businessRow[model.FieldName];
-                    this.GridView.PostEditor();
-                    this.GridView.UpdateCurrentRow();
-                    this.GridView.RefreshRow(this.GridView.FocusedRowHandle);
-                }
-            }
-            catch (Exception ex)
-            {
-                MessageUtil.Show("扩展模块选择失败：" + ex.Message);
-            }
-        }
-
         /// <summary>
         /// 先在同结构的脱离行上完成全部类型转换，所有值都合法后再写入真实业务行。
         /// </summary>
diff --git a/插件库/Lskj.Control/Lskj.Control.csproj b/插件库/Lskj.Control/Lskj.Control.csproj
index 093f543..4b9f67c 100644
--- a/插件库/Lskj.Control/Lskj.Control.csproj
+++ b/插件库/Lskj.Control/Lskj.Control.csproj
@@ -711,6 +711,7 @@
     <Compile Include="AutoGridLookUp\ExtendedReturnSearchPopup.cs">
       <SubType>UserControl</SubType>
     </Compile>
+    <Compile Include="AutoGridLookUp\ExtendedReturnModuleSourceResolver.cs" />
     <Compile Include="AutoGridLookUp\LabelExtendedReturnSearchEdit.cs">
       <SubType>UserControl</SubType>
     </Compile>
@@ -1891,4 +1892,4 @@
   <Target Name="AfterBuild">
   </Target>
   -->
-</Project>
\ No newline at end of file
+</Project>
diff --git a/插件库/Lskj.Control/Model/ControlType.cs b/插件库/Lskj.Control/Model/ControlType.cs
index 444377c..d1da03b 100644
--- a/插件库/Lskj.Control/Model/ControlType.cs
+++ b/插件库/Lskj.Control/Model/ControlType.cs
@@ -495,11 +495,11 @@ namespace Lskj.Control.Model
         /// <summary>
         /// 模块选择返回ID-扩展
         /// </summary>
-        public const int LabModuleSelectReturnIdExtended = 180;
+        public const int LabModuleSelectReturnIdExtended = 173;
         /// <summary>
         /// 搜索返回ID-扩展
         /// </summary>
-        public const int LabSearchReturnIdExtended = 181;
+        public const int LabSearchReturnIdExtended = 174;
 
         /// <summary>
         /// <para>说明：是否为Value类型</para>
diff --git a/插件库/Lskj.Control/Model/MyControl.cs b/插件库/Lskj.Control/Model/MyControl.cs
index d05bd53..661e5e8 100644
--- a/插件库/Lskj.Control/Model/MyControl.cs
+++ b/插件库/Lskj.Control/Model/MyControl.cs
@@ -140,6 +140,8 @@ namespace Lskj.Control.Model
             new List<LabelExtendedReturnSearchEdit>();
         private readonly List<KeyValuePair<object, EventArgs>> mExtendedReturnPendingChanges =
             new List<KeyValuePair<object, EventArgs>>();
+        private readonly ExtendedReturnModuleSourceResolver mExtendedReturnModuleSourceResolver =
+            new ExtendedReturnModuleSourceResolver();
         private int mExtendedReturnBatchDepth;
         /// <summary>
         /// 数据源任务对象
@@ -2258,6 +2260,7 @@ namespace Lskj.Control.Model
                         LabelMultiAutoTextEdit4 moduleReturnsIdNew = ctr as LabelMultiAutoTextEdit4;
                         value = ControlType.LabSelectReturnIdNew == model.FieldType ? moduleReturnsIdNew.EditValue : moduleReturnsIdNew.EditText;
                         break;
+                    case ControlType.LabModuleSelectReturnIdExtended:
                     case ControlType.LabSearchReturnIdExtended:
                         LabelExtendedReturnSearchEdit extendedReturnSearch = ctr as LabelExtendedReturnSearchEdit;
                         value = extendedReturnSearch == null ? string.Empty : extendedReturnSearch.EditValue;
@@ -3877,6 +3880,11 @@ namespace Lskj.Control.Model
             }
         }
 
+        public string ResolveExtendedReturnModuleSourceSql(string moduleCode)
+        {
+            return mExtendedReturnModuleSourceResolver.Resolve(moduleCode);
+        }
+
         /// <summary>
         /// <para>说明：设置搜索框数据源</para>
         /// <para>创建人：曹屹峰</para>
@@ -4934,6 +4942,7 @@ namespace Lskj.Control.Model
                     if (!isLoadBorder) moduleReturnsIdNew.TextEdit.BorderStyle = DevExpress.XtraEditors.Controls.BorderStyles.NoBorder;
                     baseControl = moduleReturnsIdNew;
                     break;
+                case ControlType.LabModuleSelectReturnIdExtended:
                 case ControlType.LabSearchReturnIdExtended:
                     LabelExtendedReturnSearchEdit extendedReturnSearch = new LabelExtendedReturnSearchEdit();
                     extendedReturnSearch.ControlObj = this;