How to sort my alphanumeric data in datagridview column?

Question

Hi,

   How do i sort the alphanumeric column in a datagridview in c# windows application. and i hve the following data

 

i1

i10

i20

i2

i3

i12

 

 

this is sorted in the form of

i1

i10

i20

i2

i20

i3

 

but i want it in this format

 

i1

i2

i3

i10

i20