Need help regarding complex calculation using Max value and limiting data after Max date in MDX

Question

I am working on a bit complex calculated measure in SSAS cube script mode.
Scenario /Data Set
Date
A
B
C
A+B
5/29/2014
Null
34
Null
34
6/30/2014
Null
23
45
68
7/15/2014
25
-25
Null
0
8/20/2014
-34
Null
Null
-34
9/30/2014
25
Null
60
25
10/15/2014
45
-45
Null
0
11/20/2014
7
8
Null
15
a) Need to capture latest non-null value of Column C based on date
with above example it should be 60 as of 9/30/2014
b) Need to capture column A+B for all dates.
c) Add values from column (A+B) only after latest date which is after 9/30/2014. 
with above example it's last 2 rows and sum is 15
d) Finally add value from step a and step c. which means the calc measure value should be = 75
I need to perform all this logic in MDX. I was able to successfully get step a and b in separate calc measure, however i am not sure how to limit the scope based on certain date criteria. In this case it's, date> Max date(9/30/2014) . Also how should
i add calculated members and regular members?
I was able to get max value of C based on date and max date to limit the scope.
CREATE MEMBER CURRENTCUBE.[Measures].[LatestC] AS
TAIL( 
  NONEMPTY(
    [Date].[Date].CHILDREN*[Measures].[C]),1).ITEM(0) ,visible=1;
CREATE MEMBER CURRENTCUBE.[Measures].[MaxDateofC] AS
TAIL( 
  NONEMPTY(
    [Date].[Date].CHILDREN,[Measures].[C]),1).ITEM(0).MemberValue ,visible=1;
Please help with Scope statement to limit the aggregation of A+B for dates > MaxDateofC? Also further how to add this aggregation value to LatestC calc measure?
Thank You

Answer 1

Hi Peddi,
I gave TRUNC to both of the dates. But still the same issue. I think the problem is in returning the BolbDomain.
return blobDomain;
} catch (XDOException xdoe) {
System.out.println("Exception in XDO :");
throw new OAException("Exception in XDO : "+xdoe.getMessage());
catch (SQLException sqle) {
System.out.println("Exception in SQL :");
throw new OAException("SQL Exception : "+sqle.getMessage());
catch (OAException e) {
System.out.println("Exception in OA :");
throw new OAException("Unexpected Error :: " +e.getMessage());
Thanks and Regards,
Myvizhi