sum单元格控件，无效。

版本信息
产品版本: 5.0.01226.0

Server: 5.1.8492.0

Plugins:

Server Plugin: 5.1.8492.0
Portal Plugin: 5.1.8492.0
Scheduler Plugin: 5.1.8492.0
Dashboards Plugin: 5.1.24431.0
Reporting Plugin: 5.1.7594.0
Dataset Management Plugin: 5.1.6925.0
Account Management Plugin: 5.1.6925.0
Analysis Model Plugin: 5.1.3178.0
Shared Resources Plugin: 5.1.8492.0