Merge pull request #8428 in DESIGN/design from release/11.0 to feature/x

* commit 'e9023e3bd21226076aadc05af3ad631419c91b6c':
  REPORT-68915 数据列数据集显示丢失 && REPORT-68890 补充空白数据配置勾选后不出现数据倍数配置项
  REPORT-69009 mac新系统下getSelectedFiles方法返回为空

designer-base/src/main/java/com/fr/design/gui/ifilechooser/SwingFileChooser.java

@@ -32,7 +32,11 @@ class SwingFileChooser implements FileChooserProvider {
 
     @Override
     public File[] getSelectedFiles() {
-        return fileChooser.getSelectedFiles();
+        if (ArrayUtils.isNotEmpty(fileChooser.getSelectedFiles())) {
+            return fileChooser.getSelectedFiles();
+        } else {
+            return new File[]{fileChooser.getSelectedFile()};
+        }
     }
 
     @Override

designer-realize/src/main/java/com/fr/design/sort/header/HeaderAreaPane.java

@@ -208,7 +208,9 @@ public class HeaderAreaPane extends JPanel {
             if (isNotSelectables(headerColumnRow)) {
                 SortHeader sortHeader = templateCellElement.getCellExpandAttr().getCellSortAttr().getSortHeader();
                 headerColumnRow = ColumnRow.ERROR;
-                sortHeader.setHeaderArea(headerColumnRow.toString());
+                if (sortHeader != null) {
+                    sortHeader.setHeaderArea(headerColumnRow.toString());
+                }
             } else {
                 handleDisableHeaderCell(templateCellElement);
             }

designer-realize/src/main/java/com/fr/quickeditor/cellquick/CellDSColumnEditor.java

@@ -471,6 +471,7 @@ public class CellDSColumnEditor extends CellQuickEditor {
                 @Override
                 public void attributeChange() {
                     update();
+                    checkButtonEnabled();
                     fireTargetModified();
                 }
             };