Group Filter Not Working

I'm developing a simple client application, using local reports populated from a local dataset, which is in turn saved and read from xml.
I am trying to set up a VERY simple group filter expression and I'm running into problems. What I want to do is display all rows where a date column matches a parameter passed to the report. I'm setting the filter up using something like this:
Expression Operator Value
=Fields!SampleDate = =Parameters!DateParam
I keep getting the following error:

Processing Errors
Value cannot be null.
Parameter name: value
OK

I know I'm probably doing something wrong. The only filter that I could get to not give the error is 1=1. LOL. Please help!You may want to try this approach:

Filter expression:
=(Fields!SampleDate.Value = Parameters!DateParam.Value)

Operator:
=

Filter Value:
=True
-- Robert

Group Filter doesn't work as expected

Employee (Group H1) AVG( of all Ratings)
Job # (Group H2) Rating
Rating is a "Calculated" field in the Dataset.
I put a filter on Job# (Group H2) to only include Ratings > 25%
Results:
Job#'s are filtered properly and every job < 25% does NOT show. HOWEVER,
the AVG (of all Ratings) ignores the Group 2 filter and includes every job
even those with a rating < 25%.
How can I get the "Avg Rating" to also only average those ratings according
to the group 2 filter I setup?
mythreadsHi,
Try setting up th filter this way. Write the expression return a true/false
value:
For expression use this (or similar): Job# > 25%
For Operator use: =For Value use: True
HTH!
Kind regards - Fred|||Hi,
Try setting up th filter this way. Write the expression return a true/false
value:
For expression use this (or similar): Job# > 25%
For Operator use: =For Value use: =True (*** CORRECTED FROM LAST POST***)
HTH!
Kind regards - Fred|||Thanks Fred for responding.
Your suggestion produced the same results. After further digging we solved
this original problem by putting the Filter on the "Dataset" and not the
report. I didn't know you could do this.
When I put the filter on "Group 2" header, "Group 2" detail was correct, but
"Group 1" header ignored the filtering in "Group 2" and used the raw Dataset
information.
When we put the filter on the dataset, it applied to both Group 1 and Group
2.
Thanks again.
"Fred Block" wrote:
> Hi,
> Try setting up th filter this way. Write the expression return a true/false
> value:
> For expression use this (or similar): Job# > 25%
> For Operator use: => For Value use: =True (*** CORRECTED FROM LAST POST***)
> HTH!
> Kind regards - Fred
>
>