Merge branch 'release/10.0' of https://code.fineres.com/scm/~yvan/design into release/10.0

# 请输入一个提交信息以解释此合并的必要性，尤其是将一个更新后的上游分支
# 合并到主题分支。
#
# 以 '#' 开始的行将被忽略，而空的提交说明将终止提交。

designer-base/src/main/java/com/fr/design/data/tabledata/tabledatapane/MaxMemRowCountPanel.java

@@ -21,7 +21,7 @@ public class MaxMemRowCountPanel extends UIToolbar {
 	private static final String[] CACHE_LIST = {com.fr.design.i18n.Toolkit.i18nText("Fine-Design_Basic_Save_All_Records_In_Memory"),
 												com.fr.design.i18n.Toolkit.i18nText("Fine-Design_Basic_Max_Mem_Row_Count") };
 	private static final int MAX_WIDTH = getMaxComBoBoxWidth() > 200 ? 350 : 250;
-
+	private static final int MAX_COMPONENT_COUNT_OF_MAX_MEMORY = 4;
 	private static int getMaxComBoBoxWidth() {
 		int maxWidth = GraphHelper.getWidth(CACHE_LIST[0]);
 		for (int i = 1; i < CACHE_LIST.length; i++) {
@@ -88,7 +88,8 @@ public class MaxMemRowCountPanel extends UIToolbar {
 		this.removeAll();
 		this.add(switchCache);
 		switchCache.setSelectedIndex(MAX_IN_MEMORY);
-		if (this.getComponentCount() == 4) {
+		if (this.getComponentCount() == MAX_COMPONENT_COUNT_OF_MAX_MEMORY) {
+			//此处因为switchCache的setSelectedIndex可能会造成双层调用，然后因为重复添加组件产生bug，故而定义这个工具栏的正常最大组件数，做个判断
 			return;
 		}
 		this.add(new UILabel(" "));