Pull request #4339: REPORT-52699 组件复用-合入主版本-feature主jar，一些第三方插件控件，右侧点击事件/移动端，显示的还是属性设置页面内容

Merge in DESIGN/design from ~KERRY/design_10.0:feature/10.0 to feature/10.0

* commit '678bff7a07c604a463ce484d2fb68b4d382587e2':
  REPORT-52699 组件复用-合入主版本-feature主jar，一些第三方插件控件，右侧点击事件/移动端，显示的还是属性设置页面内容

designer-form/src/main/java/com/fr/design/gui/controlpane/EventPropertyPane.java

@@ -166,7 +166,9 @@ public class EventPropertyPane extends UIControlPane implements ListControlPaneP
             }
             eventListWrapperPane.setVisible(listSize > 0);
         }
-        this.selectNameEdList.setSelectedIndex(0);
+        if (this.selectNameEdList != null) {
+            this.selectNameEdList.setSelectedIndex(0);
+        }
         this.repaint();
     }