How to access DataKey property of Parent GridView from RowCommand of Child GridView in ASP.Net

You can access Parent GridView by using .Parent property

Thanks for all your replies and suggestions finally i made my code working with the help of parent key as suggested by muddasar and links followed ths links above.

So this is what i have used,

As i have said in my question i have a button inside child grid view with commandname add so inside childgrid_rowcommand,

if the command name matches

1-- i am taking the index of selected row of childgrid view and get the value stored in literal (which was not the issue i faced)

2-- i need to get the value of parent datakey which has been selected, so here we go,

GridView ParentGridView = (GridView)(gvProc.Parent.Parent.Parent.Parent.Parent);

i have got the parent gridview here ,

next,

GridViewRow GVR = gvProc.Parent.Parent.Parent as GridViewRow;

its the parent gridviewrow

now getting the index which has been seleted,

int index11 = GVR.DataItemIndex;

here is the selected datakey value,

 int id =Convert.ToInt32(ParentGridView.DataKeys[index11].Value.ToString());

there may be other ways to get the same,but i found this one working Thanks once again all of you , Posting this answer if it may help someone in future :)