How to change Tooltip in Runtime?

[Di]

I have the RadMaskedNumericInput below:
<telerik:RadMaskedNumericInput Name="txtC" Value="{x:Null}" IsClearButtonVisible="False"Mask="###" Placeholder=" " HorizontalContentAlignment="Right" HorizontalAlignment="Left" VerticalContentAlignment="Center" ToolTipService.ToolTip="cm" ValueChanged="txtC_ValueChanged" />

and I need to know how to change its tooltip in runtime. I know it doesn't exists, but would be something like this:
txtC.Tooltip = "cm (AAAAAAAA)";

Di.

[Princy]

Hi Di,

Silverlight offers a class called "ToolTipService" which can be used to display tooltips for Silverlight controls. This class can be attached to most of the UI elements in Silverlight to display tooltips. Please check the following C# code. Also check this article on Display Tooltip for Silverlight Controls.

C#:

ToolTipService.SetToolTip(MyButton, "This is new tooltip");

Thanks,
Princy.

[Di]

Thanks Princy, that's exactly what I needed.
Di