Substring method

Returns a substring from a given string.

Syntax

String.Substring( n₁ [, n₂])

Where:

String
   Is an attribute or variable based on the Character/VarChar/LongVarChar data type.

n1 and n2 
   Must be numeric expressions.

Type Returned:
Character

Scope

Data Types: Character, VarChar, LongVarChar
Generators: .NET, .NET Framework, Java, RPG, Cobol, Android, Apple

Description

This method returns a substring from a given string.

Considerations

If n₂ = 0 an empty string is returned.
Omitting n₂ is equivalent to setting it to CharacterExpression.length() - n₁ + 1. 

Constraints (not apply to .NET, Java)

• 1 <= CharacterExpression length <= 255
• 0 < n₁ <= CharacterExpression length
• n₂ >= 0

Samples

&Txt = '1234567890'
&Substr = &Txt.Substring(5,2)  //&Substr = '56'

Availability

Omitting n₂ is possible since GeneXus 15 Upgrade 7.

See Also

Concat function
Str function