SELECTSTR Function
Retrieves a substring from a comma-separated string.
Syntax
NewString := SELECTSTR(Number, CommaString)
Parameters
Number
Type: Integer
Specifies which substring to retrieve. The substrings in the comma-separated string are numbered 1, 2, 3, and so on.
If Number is greater than the actual number of substrings, then a run-time error occurs.
CommaString
Type: Option
A string that contains substrings separated by commas. The maximum length of this string is 391 characters.
Property Value/Return Value
Type: Option
The substring that is retrieved from CommaString.
Remarks
SELECTSTR treats string values as OPTIONS. This means that identical values in different strings are not allowed.
Any trailing commas are removed before the operation starts.
If Number is less than 1 or greater than the number of real values (excluding trailing commas) in the string, then an error is returned.
Quotes are not supported. For example, a,b,"c,d",e is treated as a five-element substring where substring 4 is d".
Example 1
This example requires that you create the following variables and text constants in the C/AL Globals window.
| Variable name | DataType | Length |
|---|---|---|
| CommaStr | Text | 60 |
| CommaStr2 | Text | 60 |
| SubStr1 | Text | 60 |
| SubStr2 | Text | 60 |
| SubStr3 | Text | 60 |
| SubStr4 | Text | 60 |
| Text constant | ENU value |
|---|---|
| Text000 | This,is a comma,separated,string |
| Text001 | The calls to SELECTSTR return:\ |
| Text002 | 11,22,33,,55,,, |
CommaStr := Text000;
CommaStr2 := Text002;
SubStr1 := SELECTSTR(2, CommaStr); // Pick out the 2nd substring.
SubStr2 := SELECTSTR(4, CommaStr); // Pick out the 4th substring.
SubStr3 := SELECTSTR(1, CommaStr2);
SubStr4 := SELECTSTR(3, CommaStr2);
MESSAGE(Text001 + '>%1<\' + '>%2<\' + '>%3<\' + '>%4<\', SubStr1, SubStr2, SubStr3, SubStr4);
The message window displays the following text:
The calls to SELECTSTR return:
>is a comma<
>string<
>11<
>33<
Example 2
This example requires that you create the following variables and text constants in the C/AL Globals window.
| Variable name | DataType | Length |
|---|---|---|
| CommaStr2 | Text | 60 |
| SubStr5 | Text | 60 |
| Text constant | ENU value |
|---|---|
| Text002 | 11,22,33,,55,,, |
CommaStr2 := Text002;
SubStr5 := SELECTSTR(6,CommaStr2);
MESSAGE('>%1<\', SubStr5);
This example returns an error.