"Unable to display this Web Part. To troubleshoot the problem, open this Web page in a Microsoft SharePoint Foundation-compatible HTML editor such as Microsoft SharePoint Designer. If the problem persists, contact your Web server administrator."
通常这种情况发生在字段很多(比如超过30个子段)的定制Form之上。
通常是第一次访问时出现这个错误,刷新页面后就正常显示了,估计是因为有缓存的缘故,如果不持续访问,过一段时间又会出现这个错误,估计是缓存失效了。
微软在这个KB中给出了解决方案:
1. 简化xls的代码,从而加快解析速度,于是不超时正常显示 (xsl不是很好写啊)
2. 使用infopath form替代默认的Web Form (好像需要sharepoint企业版)
3. 继承系统自带的DataFormWebPart,创建并应用自己的WebPart(看似复杂实则最可行)
1) Sub class the DataForm Web Part. Override the following methods. Then Deploy the assembly.
代码如下 | 复制代码 |
Example: public class customDFWP : DataFormWebPart { public override bool IsGhosted { get { return true; } } public override bool CanHaveServerControls { get { return true; } } } 2) Add a safe control entry to the web.config 3) Add the following to the <tagMapping> element of the web.config 4) Register the assembly on the form page. 5) On the form page find <WebPartPages:DataFormWebPart > and replace it with the new custom tag. |