You can probably achieve this by combining the logic of your two expressions.
Say you have a simple DataSet and a simple Tablix based on this:
Here, RowNum is calculated as:
=RunningValue(Fields!val1.Value, CountDistinct, "Tablix1")
Next, let's hide some rows using an expression based on the other two fields:
=IIf(Fields!val2.Value + Fields!val3.Value <> 0, False, True)
This breaks RowNum, but we can amend the expression to ignore the hidden rows. We do this by NULLing them out (i.e. for SSRS set as Nothing
) - CountDistinct
will not consider any Nothing
values:
=RunningValue(IIf(Fields!val2.Value + Fields!val3.Value <> 0, Fields!val1.Value, Nothing)
, CountDistinct
, "Tablix1")
Now RowNum is ignoring the hidden rows as required: