String.Middle

From Xojo Documentation

Method

Returns a portion of a string. The first character is numbered 0.

Syntax

result=stringVariable.Middle(start [,length])

Part Type Description
result String The portion of source from start and continuing for length characters or all remaining characters if length is not specified.
source String Required. The string from which characters are returned.
start Integer Required. The position of the first character to be returned.

The first character position is 0. If start is greater than the number of characters in source, an empty string is returned.

length Integer Optional. The number of characters to return from source.

If omitted, all characters from start to the end of source are returned. If length + start is greater than the length of source, all characters from start to the end of source will be returned.

stringVariable String Any variable of type String.

Notes

To determine the number of characters in a string, use the String.Length function.

The Middle function works properly with international text.

Examples

These examples use the Middle function to return portions of a string.

Var result as String
Var source As String = "This is a test"
result = source.Middle(5) // returns "is a test"
result = source.Middle(10, 4) // returns "test"

This example converts the text string in TextField1 to hex and writes the result to TextField2:

TextField2.Value = ""
For i As Integer = 1 To TextField1.Value.Length
TextField2.Value = TextField2.Value + "&h" + Hex(Asc(TextField1.Value.Middle(i, 1)))
Next

See Also

String for a complete list of functions.