How can i set a label text's max width?

[Armodeniz]

I set a Label control like this:

<Label name="$(parent)Name" font="ZoFontGameSmall" color="INTERFACE_COLOR_TYPE_TEXT_COLORS:INTERFACE_TEXT_COLOR_DISABLED" width="110" height="20" wrapMode="TEXT_WRAP_MODE_TRUNCATE">
    <Anchor relativeTo="$(parent)Star" point="LEFT" relativePoint="RIGHT" offsetX="2" offsetY="0"/>
</Label>

It is in a virtual control and will be created many times in lua file.

But it seems that the wrapMode="TEXT_WRAP_MODE_TRUNCATE" doesnt work, the long text will expand without being truncated. How can i set the max width of a text?