How Do I Display Special Characters in a Choice Control? (Magic xpa 2.x)
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Some characters are used internally by choice controls. Commas, for example, are used to separate the items on the display list. You can still use these characters in your list: you just need to precede them with an escape character, the backslash (\). This applies to a blank, ampersand, and comma, as shown here.
You can even display a backslash as the last character of the last item by using two backslash characters. For example: A combo box that has the items of A:\ and C:\ should have its Items list set with A:\\,C:\\.
The Online and Rich Client Samples projects (program HG10 and RHG10)