reporting services - RowNumber for group in SSRS 2005 -

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i have table in ssrs report displaying group, not table details. want find out row number items being displayed can use color banding. tried using "rowcount(nothing)", instead row number of detail table.

my underlying data 

rowid   team      fan  1       yankees   john 2       yankees   russ 3       red socks mark 4       red socks mary ...          8       orioles   elliot ...          29      dodgers   jim ... 43      giants    harry

my table showing groups looks this:

rowid   team 2       yankees 3       red socks    8       orioles 29      dodgers  43      giants

i want like

rowid   team 1       yankees 2       red socks    3       orioles 4       dodgers  5       giants

you can runningvalue expression, like:

=runningvalue(fields!team.value, countdistinct, "dataset1")

dataset1 being name of underlying dataset.

consider data:

enter image description here

creating simple report , comparing rownumber , runningvalue approaches shows runningvalue gives required results:

enter image description here


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