How to switch usercontrols statically

Question

Dear All,

 

I want to switch the usercontrols statically how can i do

for example below are the example from C#Corner

https://www.c-sharpcorner.com/UploadFile/mahesh/user-control-in-wpf/#:~:text=Using%20a%20user%20control%20in,the%20user%20control%20is%20defined.

for suppose if i have 2 usercontrols i want switch usercontrols

how to do? 

if i have grid for that children as usercontrol how can i switch usercontrol in same grid