add Button

[Pravesh]

I want to add a button inside the treeview container style & how can I add click event.
I am using a HierarchicalDataTemplate.

this.OfficesDataSource = new List<OfficeName>();
OfficeName o;
EmployeeName e;
this.OfficesDataSource.Add(o = new OfficeName("A"));
            o.EmployeeNames.Add(e = new EmployeeName("X"));
            o.EmployeeNames.Add(new EmployeeName("Y"));
            this.OfficesDataSource.Add(o = new OfficeName("B"));
            o.EmployeeNames.Add(new EmployeeName("Z"));
            this.DataContext = this.OfficesDataSource;

Thanks
Pravesh

[Pravesh]

I found a solution.