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SubString

This content is no longer actively maintained. It is provided as is, for anyone who may still be using these technologies, with no warranties or claims of accuracy with regard to the most recent product version or service release.

The SubString function extracts a string of specified length from a longer string in which it occurs.

Syntax

string SubString(
  string searchString,
  int startingIndex,
  int length
);

Parameters

searchString

The string to be searched.

startingIndex

The place in searchString where the string to be extracted begins.

Length

The number of characters in the string to be extracted. Optional.

Return Values

Returns the specified string if present in searchString. If the specified string is not present, returns null.

The length argument is optional. If no value is passed, the function returns the string from startingIndex to the end of searchString.

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