DataList and SqlDataSource SelectCommand Parameter

Hi,
In my application, I am using DataList. In Item Template I added One GridView and SqlDataSource to populate data in GridView. DataList having one DataKey field, I want to pass this DataKey Value to the SqlDataSource as Parameter.
I tried this by Using Following:

<%----%>

"DataKeys[0]" />

In above snippet I hard coded Property Name to DataKeys[0], due to this it return DataKey value of first row only.

Here I need ProperyName which gives the DataKeys value for every row at the time of ItemDataBound. The Value 0 should be replaced with something thats where I stuck.......

Any Help Appreciated.........

Thanks,
VIkram