asp.net/vb.net(codew behind)

am displaying title, description, category in a datagrid web control.
it is working fine.
now, i want to display hierarchically the same based on category.
i got 4 category.
all the rows comes under any of the 4 categories.
for every category there should display a "+"
if i click the "+" then rows belong to that category should be displayed.
how can i proceed.
give some idea.

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Aravindan.N
Faster and consistent will surely beat the slow and steady

you can use a tree control

Ahmed Ali
Software Developer

or you can use datalist control to do that

Ahmed Ali
Software Developer