在Crystal报表中创建唯一的ID [英] Create a unique id in crystal reports

问题描述

我已经创建了代码窗口中显示的公式，以便每当在此处输入图像说明时显示通过 连续有多个皮卡。

I have created the formula shown in code's window to show "via" wheneverenter image description here there is more than one pickup consecutively.

它很好用，但是每当在Crystal报表中出现 Via时，我都希望显示为Via1，Via2 .... etc。

It works great but whenever "Via" shows up in Crystal report, I want to display as Via1, Via2 ....etc.

`If {Command.ACTIVITY}= 'Pick' and 
(previousISNULL ({Command.PASSONBOARD}) or previous 
({Command.PASSONBOARD})="")
 and next ({Command.ACTIVITY})='Pick'
 then "Via"
  else ""`

推荐答案

使用变量。

尝试类似这样的事情：

shared numbervar counter;
If {Command.ACTIVITY}= 'Pick' and 
(previousISNULL ({Command.PASSONBOARD}) or previous 
({Command.PASSONBOARD})="")
 and next ({Command.ACTIVITY})='Pick'
 then counter := counter + 1;
 "Via" + cstr(counter)

观察 then子句中是否有括号

Observe there are parenthesis in "then" clause.

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