string.format problem

[bopritchard]

this is my label control

<asp:label Runat=server text='<%# string.format("{0:(###) ###-####}", Container.DataItem("phonenumber"))%>' ID="lblPhoneNumber"></asp:label>

the data for phonenumber is 7044561237
but it keeps getting rendered to the page as 7044561237
why is the string.format not formatting?

 

[TipGiver]

NOTE that:
1. The # is for numbers !
2. You forgot a \ .

Container.DataItem("phonenumber") returns a string !

So:

Dim s As Double
Double.TryParse(Container.DataItem("phonenumber"), s)
String.Format("{0###) ###\-####}", s)