diff --git a/designer-base/src/main/java/com/fr/design/data/datapane/TreeTableDataComboBox.java b/designer-base/src/main/java/com/fr/design/data/datapane/TreeTableDataComboBox.java
index 8b5c626571..8964ff8de0 100644
--- a/designer-base/src/main/java/com/fr/design/data/datapane/TreeTableDataComboBox.java
+++ b/designer-base/src/main/java/com/fr/design/data/datapane/TreeTableDataComboBox.java
@@ -69,7 +69,16 @@ public class TreeTableDataComboBox extends UIComboBox {
 			}
 		}
 	}
-	
+
+	/**
+	 * 带参刷新方法
+	 * @param source 数据源数据集
+	 */
+	public void refresh(TableDataSource source) {
+		this.source = source;
+		refresh();
+	}
+
 	public void setSelectedTableDataByName(String name) {
 		TableDataWrapper tableDataWrapper;
 		if (res_map.get(name) != null) {
diff --git a/designer-base/src/main/java/com/fr/design/gui/frpane/JTreeAutoBuildPane.java b/designer-base/src/main/java/com/fr/design/gui/frpane/JTreeAutoBuildPane.java
index 46cdae35bd..6103e68002 100644
--- a/designer-base/src/main/java/com/fr/design/gui/frpane/JTreeAutoBuildPane.java
+++ b/designer-base/src/main/java/com/fr/design/gui/frpane/JTreeAutoBuildPane.java
@@ -26,14 +26,14 @@ import com.fr.design.gui.ilable.UILabel;
 import com.fr.design.layout.FRGUIPaneFactory;
 import com.fr.design.layout.TableLayout;
 import com.fr.design.layout.TableLayoutHelper;
-
 import com.fr.stable.StringUtils;
-
-import javax.swing.*;
 import java.awt.*;
 import java.awt.event.ItemEvent;
 import java.awt.event.ItemListener;
 import java.util.List;
+import javax.swing.*;
+import javax.swing.event.PopupMenuEvent;
+import javax.swing.event.PopupMenuListener;
 
 public class JTreeAutoBuildPane extends BasicPane implements PreviewLabel.Previewable, EditOrNewLabel.Editable {
     private TreeTableDataComboBox treeTableDataComboBox;
@@ -61,6 +61,23 @@ public class JTreeAutoBuildPane extends BasicPane implements PreviewLabel.Previe
                 tdChange();
             }
         });
+        // REPORT-38762 加一个展开监听事件，下拉框展开时刷新一下数据集
+        treeTableDataComboBox.addPopupMenuListener(new PopupMenuListener() {
+            @Override
+            public void popupMenuWillBecomeVisible(PopupMenuEvent e) {
+                treeTableDataComboBox.refresh(DesignTableDataManager.getEditingTableDataSource());
+            }
+
+            @Override
+            public void popupMenuWillBecomeInvisible(PopupMenuEvent e) {
+
+            }
+
+            @Override
+            public void popupMenuCanceled(PopupMenuEvent e) {
+
+            }
+        });
         selectTreeDataPanel.add(treeTableDataComboBox);
         treeTableDataComboBox.setPreferredSize(new Dimension(200, 25));
         treeTableDataComboBox.setSelectedIndex(-1);
diff --git a/designer-base/src/main/java/com/fr/design/mainframe/DesignerFrame.java b/designer-base/src/main/java/com/fr/design/mainframe/DesignerFrame.java
index fe0276b384..2f65fca0a8 100644
--- a/designer-base/src/main/java/com/fr/design/mainframe/DesignerFrame.java
+++ b/designer-base/src/main/java/com/fr/design/mainframe/DesignerFrame.java
@@ -746,10 +746,14 @@ public class DesignerFrame extends JFrame implements JTemplateActionListener, Ta
      */
     public void checkCombineUp(boolean flag, ArrayList<String> al) {
         //Yvan: 检查当前是否为WORK_SHEET状态，因为只有WORK_SHEET中含有格式刷组件，此时是不需要进行checkComponentsByNames的
-        if (HistoryTemplateListCache.getInstance().getCurrentEditingTemplate().getMenuState() == DesignState.WORK_SHEET) {
-            return;
+        JTemplate<?, ?> jTemplate = HistoryTemplateListCache.getInstance().getCurrentEditingTemplate();
+        if (jTemplate != null) {
+            // 第一个条件满足后还需要添加一重判断，判断是编辑报表块还是参数面板，编辑报表块时则直接return
+            if (jTemplate.getMenuState() == DesignState.WORK_SHEET && !jTemplate.isUpMode()) {
+                return;
+            }
+            combineUp.checkComponentsByNames(flag, al);
         }
-        combineUp.checkComponentsByNames(flag, al);
     }
 
     /**