如何在Crystal Reports中将DateTime对象转换为字符串

问题描述

我有一个简单的Crystal Reports代码行：

  EffectiveDateTimeString = ToText（{Command.EffectiveDate}，dd -MM-yyyy hh：mm：ss）; 
  

但是，当我尝试验证公式时，我得到一个错误，太多的参数给定该功能，选择dd-MM-yyyy hh：mm：ss。 Command.EffectiveDate是DateTime对象。如何将它转换为字符串？

谢谢！

解决方案

您需要使用赋值运算符：= ，而不是等价一个 = ：

  EffectiveDateTimeString：= ToText（{Command.EffectiveDate}，dd-MM-yyyy hh：mm：ss）; 
  

* 编辑*

此代码段可按预期工作：

  ToText（CurrentDate + CurrentTime，dd-MM-yyyy hh：mm： ss）; 
  

确保您的字段实际上返回的是日期/时间，而不是一个或另一个。 p>

I have a simple line of Crystal Reports code below:

EffectiveDateTimeString = ToText({Command.EffectiveDate} , "dd-MM-yyyy hh:mm:ss" );

However, when I try to validate the formula, I get a error saying "Too many arguments have been given to this function" with "dd-MM-yyyy hh:mm:ss" selected. Command.EffectiveDate is the DateTime object. How can I convert this to a string?

Thanks!

解决方案

You need to use the assignment operator :=, not the equivalency one =:

EffectiveDateTimeString := ToText({Command.EffectiveDate} , "dd-MM-yyyy hh:mm:ss" );

*edit *

This snippet works as expected:

ToText(CurrentDate + CurrentTime, "dd-MM-yyyy hh:mm:ss");

Ensure that your field is actually returning a date/time, rather than one or the other.

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