The document describes various expressions in SQL Server Reporting Services (SSRS) that can format dates and numbers, perform calculations on dates, look up values from other datasets, and conditionally format text based on field values. Expressions allow retrieving and manipulating data, performing conditional logic, and formatting output in SSRS reports. Common functions used include FORMAT, DATEADD, IIF, LOOKUP, and JOIN.

1. SSRS Expressions

2.  To display the current data and Time
=Now()
 The following expression formats the SellStartDate
value as MMM-YY.
=FORMAT(Fields!SellStartDate.Value, "MMM-yy") (OR)
=FORMAT(Fields!SellStartDate.Value, dd/MM/yyyy“)

3. • The following example displays the start date of the
current year.
=DateAdd(DateInterval.Year,DateDiff(DateInterval.Year,C
Date("01/01/1900"),Now()),CDate("01/01/1900"))
 The following expressions display various dates based
on a date parameter value selected by the user.

4.  Yesterday
=DateSerial(Year(Parameters!TodaysDate.Value),Month(Parameters!
TodaysDate.Value),Day(Parameters!TodaysDate.Value)-1)
 Two Days Ago
=DateSerial(Year(Parameters!TodaysDate.Value),Month(Parameters!
TodaysDate.Value),Day(Parameters!TodaysDate.Value)-2)

5.  One Month Ago
=DateSerial(Year(Parameters!TodaysDate.Value),Month(Parameters!
TodaysDate.Value)-2,Day(Parameters!TodaysDate.Value))
 One Year Ago
 =DateSerial(Year(Parameters!TodaysDate.Value)1,Month(Parameters!
TodaysDate.Value),Day(Parameters!TodaysDate.Value))
 Two Years Ago
=DateSerial(Year(Parameters!TodaysDate.Value)-2,Month(Parameters!
TodaysDate.Value),Day(Parameters!TodaysDate.Value))

6.  Trimming DOMAINusername to just the user name
=Right(Parameters!User.Value, Len(Parameters!User.Value) -
InStr(Parameters!User.Value, ""))
 Display the selected values from a multivalue parameter
= Join(Parameters!MySelection.Value) (OR)
=”Report for “ & JOIN(Parameters!MySelection.Value, “ & “)

7.  To combine the two string values in the text boxes.
=Fields!FirstName.Value & vbCrLf & Fields!
LastName.Value
 The following expression displays values of the
StartDate and EndDate parameters in long date
format:
=Format(Parameters!StartDate.Value, "D") & " through "
& Format(Parameters!EndDate.Value, "D")

8.  To change the format of a ten-digit telephone number in a field
from "nnn-nnn-nnnn" to "(nnn) nnn-nnnn":
=System.Text.RegularExpressions.Regex.Replace(Fields!Phone.Value,
"(d{3})[ -.]*(d{3})[ -.]*(d{4})", "($1) $2-$3")
 The lookup function,The following expression displays the product
name from a dataset (“Product”), given the product identifier to
match on
=Lookup(Fields!PID.Value, Fields!ProductID.Value,
Fields.ProductName.Value, "Product")

9.  converts the constant 500 to type Decimal in order to compare it to
a Transact-SQL money data type
=CDec(500)
 The following expression displays the number of values selected for
the multivalue parameter MySelection.
=CStr(Parameters!MySelection.Count)
 Use multiple IIF functions can be placed in the fill color of a text box
to change the background color depending on the value in the text
box.

10. =IIF(Fields!PctComplete.Value >= 10, "Green", IIF(Fields!PctComplete.Value
>= 1, "Blue", "Red")) (OR)
=swithc(Fields!PctComplete.Value >= 10, "Green",Fields!PctComplete.Value
>= 1,yellow,Fields!PctComplete.Value >= 15,Oranage, "True", "Red")
 Test the value of the ImportantDate field and return "Red" if it is more
than a week old, and "Blue" otherwise. It used to control the Color
property of a text box in a report item
=IIF(DateDiff("d",Fields!ImportantDate.Value, Now())>7,"Red","Blue")

11.  Test the value of the Department field and return
either a subreport name or a null This expression can
be used for conditional drillthrough subreports.
=IIF(Fields!Department.Value = "Development",
"EmployeeReport", Nothing)
 To displayed only if the value of the field is not null.
=IIF(IsNothing(Fields!LargePhoto.Value),True,False)

12.  To displays NA in the Month field when the field contains the value of 0
=IIF(Fields!Month.Value=0,"NA",MonthName(IIF(Fields!
Month.Value=0,1,Fields!Month.Value)))
 This function can be useful in the header or footer of a group. The
following expression displays the sum of data in the Order group or data
region
 =Sum(Fields!LineTotal.Value, "Order")
 =Sum(IIF(Fields!State.Value = "Finished", 1, 0))

13.  changes the color of the text depending on the value of the Profit
field
=Iif(Fields!Profit.Value < 0, "Red", "Black")
 To display alternates the background color of each row between
pale green and white
=Iif(RowNumber(Nothing) Mod 2, "PaleGreen", "White")
 Using an expression for a specified scope, you may have to indicate
the dataset for the aggregate function

14. =Iif(RowNumber("Employees") Mod 2, "PaleGreen",
"White")
 shows the table only if it has more than 12 rows
=IIF(CountRows()>12,false,true)
 To check the if the field exists in the report dataset
after the data is retrieved from the data source
=IIF(Fields!Column_1.IsMissing, true, false)

15.  Lookup To combine the two dataset columns in the single report
item.
=Lookup(Fields!SiteCode.Value,Fields!SiteCode.Value,Fields!
DistributionPoint.Value, "DataSet2")
 Lookupset
Join(LookupSet(Fields!PID.Value ,
, Fields!Xtrnl_Award_Type.Value & " - " & Fields!
Xtrnl_Award_Date.Value
, "Awards"), ", ")

16.  Multi Lookup
=Join(MultiLookup(Split(Fields!
CategoryList.Value,","), Fields!
CategoryID.Value
,Fields!CategoryName.Value,"Category")), ", ")