Grouping with Reporting services

Can anyone help me with grouping in Reporting services. I am more used to crystal reports drill-down method

For example i have a simple table that has timestamp and three other columns. I want to drill down by (after Grouping) for Day-Then- Hour and then show the details for three columns. And also group by one of the columns, if i get above working.

All i could do with Reporting services was stepped down model, but i have same dates repeated more than once. i would like them to be grouped under day and then show time stamps for times of day .

-Thanks all

You can do this by creating a Table and adding a grouping, which is grouped by the date portion of the timestamp field, and then place the detail fields in the detail section, as you are now. The expressions should be something like the following:

Grouping expression:
=Fields!TimeStamp.Value.Date

Grouping header textbox for the date:

=Fields!TimeStamp.Value.ToString("D")

Detail textbox for the time:
=Fields!TimeStamp.Value.ToString("T")

Ian