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csdn
22 年
请问如何使用放在DataList内的TestBox的ToolTip属性?
各位高手,真不好意思,我又来麻烦你们了! 我们现在在用.NET进行数据库编程时,遇到了一个比较大的困难. 我们的本意是想用放在DataList上的TestBox(TB_发芽势)的ToolTip属性来显示数据库CD_ZZCL中的字段"规范"的内容,但是错误信息如下: 未将对象引用设置到对象的实例。
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