MidA
DataWindow expression function
Description
Obtains a specified number of bytes from a specified position in a
string.
Syntax
|
1 |
MidA ( string, start {, length } ) |
|
Argument |
Description |
|---|---|
|
string |
The string from which you want characters |
|
start |
A long specifying the position of the first byte you |
|
length (optional) |
A long whose value is the number of bytes you want |
Return value
String. Returns characters specified by the number of bytes in
length of string starting at the byte specified by start. If start is
greater than the number of bytes in string, the MidA function returns the
empty string (“”). If length is greater than the number of bytes remaining
after the start byte, MidA returns the remaining bytes. The return string
is not filled with spaces to make it the specified length.
Usage
MidA replaces the functionality that Mid had in DBCS environments in
PowerBuilder 9. In SBCS environments, Mid and MidA return the same
results.
See also
MidA in the section called “MidA” in PowerScript Reference