单个数字到年份以及连字符的高级转换 [英] Advanced conversion of a single number to year, along with hyphen

问题描述

我想在水晶报表中将字符串值转换为日期时间

I want to convert the string value to datetime in crystal report

日期格式为

05-10-7-AAAA (mm-dd-year(2017)-AAAA)
05-23-3-00   (mm-dd-year(2013)-00)
...

我想要的输出是

10-May-2017
23-May-2013
...

我的好参考书是如何将字符串值转换为正确的日期时间格式&下列尝试引发了我错误：

My good reference has been How to convert string value to proper datetime format & the following attempts threw me errors:

Date({ORDERCHECKVIEW.LOTNUMBER}[4 to 5], ***{ORDERCHECKVIEW.LOTNUMBER}[1 to 2], {ORDERCHECKVIEW.LOTNUMBER}[7]***)  //Too many arguments have been given to this function

&

DateValue({ORDERCHECKVIEW.LOTNUMBER})  //Bad date format string

非常感谢您，我将尽我所能！

Thank you so much in advance and I will be as responsive as I can!

推荐答案

创建一个新公式并应用下面的代码。 {Command.mydate}将替换为您的字段

Create a new Formula and apply the code below. {Command.mydate} will be replaced with your field

local StringVar mDate;
local StringVar mMonth;
local StringVar mDay;
local StringVar mYear;
//local StringVar mSuffix:= StrReverse(left(StrReverse({Command.mydate}),instr(StrReverse({Command.mydate}),"-",1)-1));    // to get suffix

mDate:= left({Command.mydate},InStrRev ({Command.mydate},"-" )-1);     // get dd
mMonth:= left(mDate,2);  // get MM
mDay := Mid (mDate,4 ,2 );  // get YYYY
mYear := totext(2010 + CDbl (right(mDate,InStr(StrReverse(left({Command.mydate},InStrRev ({Command.mydate},"-" )-1)),"-") -1 )),0,""); // transform   2017

cDate(cDbl(mYear),cDbl(mMonth),cDbl(mDay));   // this will display dd-MM-YYYY     may not display as 01 for dd but you can always customise this in the GUI the important point is this is now a date field

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