Auto formatting gridview Column on double click

Hi,

 

I  have a grid view which has 15 columns. when i bind data to the grid view, columns are not auto formatted but still i can drag the column to see entire content.

 

but my requirement is when user double click on any column it should be auto formatted(Auto formatted means i should be able to see all the rows of the column with no width problem).

 

(note:Columns are adjustable i can drag the columns to see the full content) 

 

can any one help me to achieve this?