Strings [AX 2012]

Strings are unlimited in length unless a length is specified in the declaration.

The declaration of strings is described in the following table.

String declaration	=	str [Typeoptions] Variable { , Variable } ;
Typeoptions	=	[maxlength] Caution X++ that is compiled into .NET Framework common intermediate language (CIL) code ignores the [maxlength] specification. For information about how to detect cases where strings are truncated due to a [maxlength] specification during run time, read about the logstrtrunc option in Client configuration commands.
Variable	=	Identifier [option]
Option	=	Arrayoptions | initialization

The Typeoptions specify an optional maximum length and a comparison scheme.

 
//Dynamic string of unlimited length
str indefiniteString;

//String with a maximum of 64 characters, initialized to "A"
str 64 maxLengthString = "A";

//Array of 100 strings
str 30 hundredStrings[100];

String literals are characters that are enclosed in quotation marks (" ") and can be used where string expressions are expected. Here are some examples:

• "Nothing"

• "A"

• "yiruyshfkjsadhfkasfhksafhask"

• "Press any key now."

If you want the string to span more than one line, you need to precede it with an "@" character. For example:

str s = @"This is a very long string that may not fit onto a single line and so may span more than one line";

There is no automatic conversion of strings.

You can use strings in logical expressions, such as comparisons. You can also concatenate strings by using the + operator, as follows:

void myMethod()
{
    // Two strings are declared and initialized
    str a="Hello", b="World";
    ;
 
    // The concatenation of a, " " and b is printed in a window.
    print a+" "+b;
    pause;
}