Thai calendar in DateField

[iBenz]

Hello, I would like to make the DateField control to show Thai calendar.

In an aspx file, I used the DateField control like this:

<ext:DateField ID="dfBirth" runat="server" Flex="1" />

I try to write code in C# to change the cultureinfo of current thread to "th-TH" but it doesn't work. Does anyone know how to do that?

Thank you very much.