Bind sorted data view to grid view

Hi

I have Ref column in decimal format,

Table Example:

FileNameRef

File1Test1.0

File2Test1.1

File3Test 1.2

File4Test  1.1.1

I want sorted table to look like

FileNameRef

File1Test 1.0

File2Test 1.1

File3Test 1.1.1

File4Test  1.2

Is this kind of sorting possible?

Please help!

Thanks