hi!i am developing a asp.net web application with c# ,using visual studio 2003.i want to align text in a label . this is what i found in a help topic:

Example

The following code example demonstrates how to center the text of a label.

[C#]

private void Form1_Activate(object sender,System.EventArgs e) { Label1.Alignment =Alignment.Center; Label1.Text = "Earnings Update"; }

Requirements

Namespace:System.Web.UI.MobileControls

Assembly:System.Web.Mobile

See Also

System.Web.UI.MobileControls Namespace

when i start my application the following error message appears:

d:\web\intranet\intra2\appl\pettycash\default.aspx.cs(13,21): error CS0234: The type or namespace name 'MobileControls' does not exist in the class or namespace 'System.Web.UI' (are you missing an assembly reference?).

what does this mean?how can i get the assembly reference?