Add code to a paginated report (Report Builder)

Applies to: ✅ Microsoft Report Builder (SSRS) ✅ Power BI Report Builder ✅ Report Designer in SQL Server Data Tools

In any expression, you can call your own custom code in a paginated report. You can provide code in the following two ways:

• Embed code written in Visual Basic directly in your report. If your code refers to a Microsoft .NET Framework that is not Math or Convert, you must add the reference to the report. For more information, see Add an Assembly Reference to a Report (SSRS). For more information about other references you can make from your code, see Custom Code and Assembly References in Expressions in Report Designer (SSRS).

• Provide a custom code assembly by using the .NET Framework. If you provide a custom assembly, you must install it on both the computer where you author the report and the report server where you view the report. For more information, see Using Custom Assemblies with Reports.

To add embedded code to a report

1. In Design view, right-click the design surface outside the border of the report and click Report Properties.

2. Click Code.

3. In Custom code, type the code. Errors in the code produce warnings when the report runs. The following example creates a custom function named ChangeWord that replaces the word "Bike" with "Bicycle".

   Public Function ChangeWord(ByVal s As String) As String  
      Dim strBuilder As New System.Text.StringBuilder(s)  
      If s.Contains("Bike") Then  
         strBuilder.Replace("Bike", "Bicycle")  
         Return strBuilder.ToString()  
         Else : Return s  
      End If  
   End Function  
   

4. The following example shows how to pass a dataset field named Category to this function in an expression:

   =Code.ChangeWord(Fields!Category.Value)  
   

   If you add this expression to a table cell that displays category values, whenever the word "Bike" is in the dataset field for that row, the table cell value displays the word "Bicycle" instead.

See Also

Report Properties Dialog Box, Code
Expression Examples (Report Builder and SSRS)
Parameters Collection References (Report Builder and SSRS)