CREATE A PARAMETER IN SSRS

Question

i AM TO CREAT A PARAMETER FROM THE ANALYSIS DATABASE BUT APPARENTLY THERE ARE NO VALUES IN THE DIMENSIONN MEMBER
BELOW IS THE LOGIC THAT WAS USED WHEN LOADING THE DATA INTO THE DATAWAREHOUSE.
1) 
Each transaction in the audit trail is matched with a record in the EA dimension table using the EA, SUBJOB, and AGENCY
2) 
Each transaction in the audit trail is matched with a record in the Trans Code dimension table using trans_code
3) 
If the EA_STAT value is E4, U4, P5, 02, 03, or 04 AND the TRANS_GROUP value is 3500 or 9100, then the record is marked as a PROJECT
4) 
If the EA_STAT value is NOT in E4, U4, P5, 02, 03, or 04 AND the TRANS_GROUP value is 3500, then the record is marked as NON-PROJECT
5) 
Anything else outside of those ranges is marked as UNKNOWN.
"SELECT
ACTIVITY = coalesce(activity,''),
AGENCY = coalesce(agency,''),
AGENCY_SOURCE = coalesce(agency_source,''),
AGREEMENT_NO = coalesce(f.agreement_no,''),
AGREEMENT_SFX = coalesce(agreement_sfx,''),
APPN_SYMBOL = coalesce(appn_symbol,''),
AT_VENDOR_NO = coalesce(at_vendor_no,''),
AT_VENDOR_SFX = coalesce(at_vendor_sfx, ''),
CHECK_NO,
CHRGE_UNIT = coalesce(chrge_unit,''),
COMPONENT = coalesce(component,''),
CUR_DOC_NO,
CUR_DOC_SFX,
EA = coalesce(f.EA,''),
EFFECTIVE_DATE,
ELEMENT = coalesce(element,''),
FISCAL_YEAR = coalesce(f.fiscal_year, ''),
FUND_DETAIL = coalesce(fund_detail,''),
FUND_NUMBER = coalesce(fund_number,''),
INVOICE_NO = coalesce(invoice_no, ''),
OBJ_DETL = coalesce(obj_detl,''),
OPERATOR = coalesce(operator,''),
PROCESS_DATE,
PROGRAM = coalesce(program,''),
REMIT_ADVICE_DESC = coalesce(REMIT_ADVICE_DESC,''),
RESPONSIBLE_UNIT = coalesce(RESPONSIBLE_UNIT,''),
REVENUE_SOURCE = COALESCE(revenue_source,''),
SUBJOB = COALESCE(f.SUBJOB,''),
TASK = COALESCE(TASK,''),
TRANS_CODE = COALESCE(TRANS_CODE,''),
TRANSACTION_AMOUNT,
TRANSACTION_QTY,
VENDOR_NO = CASE WHEN LEN(VENDOR_NO) = 0 THEN AT_VENDOR_NO ELSE VENDOR_NO END,
VENDOR_SFX = CASE WHEN LEN(VENDOR_SFX) = 0 THEN AT_VENDOR_SFX ELSE VENDOR_SFX END,
b.BIEN_SK,
DOCUMENT_DATE,
LET_DATE = '1900-01-01',
COMPLETION_DATE = '1900-01-01', t.TRANS_SK,
case when t.trans_grp_desc = 'EXPENDITURES' AND f.CATEGORY != '9' then f.transaction_amount else 0.00 end AS TRAN_AMT_EXPENDITURE,
case when t.trans_grp_desc = 'REVENUE' then f.transaction_amount else 0.00 end AS TRAN_AMT_REVENUE,
case when t.trans_grp_desc = 'AGREEMENT AMT BILLED' then f.transaction_amount else 0.00 end AS TRAN_AMT_AGREEMENT,
case when t.trans_grp_desc = 'ENCUMBRANCES' then f.transaction_amount else 0.00 end AS TRAN_AMT_ENCUMBRANCE,
case when t.trans_grp_desc = 'LEG EXP BUDGET' then f.transaction_amount else 0.00 end AS TRAN_AMT_LEGISLATIVE_BDGT,
case when t.trans_grp_desc = 'OPERATING BUDGET' then f.transaction_amount else 0.00 end AS TRAN_AMT_OPERATING_BDGT,
case when t.trans_grp_desc = 'PROJECT BUDGET' then f.transaction_amount else 0.00 end AS TRAN_AMT_PROJECT_BDGT,
EA_FINAL_STAT = coalesce(f.ea_final_stat,''),
CASE
WHEN
e.ea_stat IN ('E4', 'U4', 'P5', '02', '03', '04')
and t.trans_grp IN ('3500', '9100')
THEN 1 -- PROJECT
WHEN
e.ea_stat NOT IN ('E4', 'U4', 'P5', '02', '03', '04')
and t.trans_grp IN ('3500')
THEN 2 -- NON PROJECT
ELSE 0 -- UNKNOWN
END AS EXPENDITURE_GROUP_SK,
BATCH_AGENCY,
BATCH_DATE,
BATCH_TYPE,
BATCH_NO,
DOC_INDEX,
LINE_NO,
FUND_SPLT_SEQ_NO,
DUP_REC_IND,
RECORD_NO,
STATE_FORCE_ORDER,
REFERENCE_CODE,
FLEET_CODE,
FUEL_TYPE,
f.CONTRACT_NO,
f.CONTRACT_SFX
FROM
" + @[Package::SQL_Source_Table] + " as f
JOIN " + @[Package::SQL_Dest_DB] + ".dbo.DIM_BIENNIUM as b
ON b.fiscal_year = f.fiscal_year
AND CAST(f.fiscal_month as tinyint) = b.fiscal_month_no
JOIN " + @[Package::SQL_Dest_DB] + ".dbo.dim_trans as t
on t.trans_cd = f.trans_code
JOIN (SELECT MAX(EA_SK) AS EA_SK, EA, SUBJOB, EA_AGY, EA_STAT FROM " + @[Package::SQL_Dest_DB] + ".dbo.dim_EA GROUP BY EA, SUBJOB, EA_AGY, EA_STAT) e
on f.EA = e.EA
AND f.SUBJOB = e.SUBJOB
AND f.AGENCY = e.EA_AGY
HOW DO YOU SUGGEST i GO ABOUT IT?

Answer 1

=Code.fFormatColumnName(Parameters!pSummary1.Value) &
" " & trim(fields(Parameters!pSummary1.Value).Value) &
iif(
Parameters!pSummary1.Value="OBJECT",
"-" & Lookup(
iif(isnothing(Fields!CAT_OBJ_KEY.Value), "-111", Fields!CAT_OBJ_KEY.Value),
Fields!CAT_OBJ_KEY.Value, Fields!OBJECT_DESC.Value,
"sqlOBJLookup"),
iif(
Parameters!pSummary1.Value="CATEGORY",
"-" & Lookup(
iif(isnothing(Fields!CATEGORY.Value), "-1", Fields!CATEGORY.Value),
Fields!CATEGORY.Value, Fields!CATEGORY_DESC.Value,
"sqlCategoryLookup"),
iif(
Parameters!pSummary1.Value="OBJ_DETL",
"-" & Lookup(
iif(isnothing(Fields!OBJ_DETL.Value), "-111", Fields!OBJ_DETL.Value),
Fields!OBJ_DETL.Value, Fields!OBJ_DETL_DESC.Value,
"sqlOBJDetLookup"),
) & " TOTALS:"