Gridview With Dropdown

Question

I am Using Dropdown in Template Field(Gridview) there is another Template Field Using Label COntrol

Please Help me 

When User Change Drop Down value (or item)the other template fields 

value (Label )should get changed

for example

drop down values

1

2

3

When User Select 1 the label Template Fields value should be "yes" and on

no  value of label should be "0"

Like this