want to add a subgrid in struts2 jquery grid

I have two grids department and student. Now I want to show department grid always and whenever any row of that department grid is selected 开发者_运维技巧student grid will open at the bottom of the department grid with all the student data of that department. Can you help me on this. I am using struts2 and jQuery.

Thanks in advance.

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have you seen the Grid Showcase from Struts2 jQuery Plugin?

Maybe this is a good start to build your subgrid.