Some functions used in X++

strRem 

Removes the characters specified in one string from another string.  
str strRem(str text1, str text2) 

where 

text1 : The string from which to remove characters.

text2 : The characters to exclude from the output string.

subStr

Retrieves part of a string. 

str subStr(str _text, int _position, int _number) 

where

_text : The original string.

_position : The position in the original string where the part to retrieve begins.

_number : A signed integer that indicates the direction and number of positions to retrieve from the original string.

If there is a minus sign preceding _number, the system selects the substring backward from the specified position.

strDel  

Creates a copy of a string with the specified substring removed. 

str  strDel( str _text, int _position, int _number) 

where

_text  : The string to copy from

_position : The position at which to begin ignoring characters during the copy.

_number : The number of characters to ignore.

A minus in front of _number parameter indicates that the (_number-1) characters before the character at the _position parameter are to be removed along with the character at the _position.

strFmt

Formats the specified string and substitutes any occurrences of %n with the nth argument.

str strFmt(str _string, ...)

where 

_string  : The strings to be formatted.

example: to set the number of page in a report :

Display STR 20 pageNum()
{
    return StrFmt("@SYS24160", element.page());
}

num2Str 

Converts a real number to a string. 

str num2Str(
    real number,
    int character,
    int decimals,
    int separator1,
    int separator2)

where: 

number	The real number to convert to a string.
character	The minimum number of characters required in the text.
decimals	The required number of decimal places.
separator1	A DecimalSeparator enumeration value.
separator2	A ThousandSeparator enumeration value.

 Example 

static void Job_Num2Str(Args _args)
{
    real realNum = 0.1294567890123456777; // 19 decimals places.
    ;
    info(Num2Str(realNum,0,16,1,3)); // 16 decimals
    info(Num2Str(realNum,0,17,1,3)); // 17 decimals
}

Round   

Rounds a real number to the nearest multiple of another real number.

real round(real _arg, real _decimals)

_arg	The original number.
_decimals	The number that the value of the _arg parameter must be rounded to a multiple of.

Examples:

round(123.45,5.00); //Returns the value 125.00. round(7.45,1.05); //Returns the value 7.35. round(23.9,5.0); //Returns the value 25.00; round(26.1,5.0); //Returns the value 25.00; strLen  Returns the size of a string  int strLen ( Str _text ) ConPeek Retrieves a specific element from a container. anytype conPeek(container container, int number) Example: static void conPeekExample(Args _arg) { container c; int i; ; c = conIns(["item1", "item2"], 1); for (i = 1 ; i <= conLen(c) ; i++) { print conPeek(c, i); } pause; } strUpr Converts all the letters in a string to uppercase.  str strUpr(str _text) static void strUprExample(Args _args) { print strUpr("Abcdd55EFGhiJ"); pause; } strLwr Converts all the letters in a string to lowercase. str strLwr(str _text) static void strLwrExample(Args _args) { // Returns the text string "abcdd55efghij". print strLwr("Abcdd55EFGHIJ"); pause; } Units  We use it to set the unit of a dimension. Example : element.design().controlName("CustInvoiceJour_InvoicingName"); CustInvoiceJour_InvoicingName.top(20.8, Units::mm);

Global::dateEndYr Method Retrieves the date of the last day in the same year as the specified date.   client server public static date dateEndYr(date transDate) Global::DateMthFwd Method Adds the specified number of months to a date.  client server public static date DateMthFwd(date transDate, int qty) Global::DateStartYr Method  Retrieves the first date of the specified year.  client server public static date DateStartYr (date transDate)   tableName2Id Function Retrieves the ID of a table.  int tableName2Id(str _name)   Resources: http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/ntcmds.mspx?mfr=true