PB中数据窗口列校验的若干技术

Technolgy of Column Verification In the Data Window of Power Builder

:数据窗口是PowerBuilder的精华之一 ,本文介绍了数据输入时的校验原理和方法 ,讨论了利用数据窗口上的校验规则和itemerror事件来保证数据输入时的正确性 ,并给出了具体实现。

Data Window is the essence of Power Builder.In the Paper,the authors introduce the verification principal and method about data input in the data window,and especially,make a discussion that the correctness of data input is how to be ensured by column verification principal and “Item,error”in data window,thus realize the purpose by self defined function.