Binding Command to Button within DataTemplate

Hi,

I am using WPF Toolkit in my project. And I have DataGrid in my XAML.
Now I have added one button in one column using DataTemplate.

I have binded DataView to this Grid. But the only problem am facing is am not able to bind Command to the Button within datatemplate.

I have written following XAML to bind command to this button

<Button Content="..." Command = "{Binding Path=ShowDealListCommand}"/>

But when I clicked this button it's not calling target method I have written in this command.

I am able to bind content property to this button so this means that there is no issues of setting datacontext. As I have already set DataContext for this XAML in Codebehind.

Pls help me !!

Thanks ! :)