SSRS sentence case with regex

Question

I want to convert a field in a SSRS report to sentence case eg:

some test sentence. second Sentence.

should be converted to:

Some test sentence. Second sentence.

I am currently attempting this using a regular expression:

=System.Text.RegularExpressions.Regex.Replace(
 IIf(IsNothing(Fields!Title.Value), "", LCase(Fields!Title.Value)),
 "(^[a-z])|\.\s+(.)",
 UCase("$1")
)

The above rejex is failing. It seems that the part: UCase("$1") is not working. What I'm getting is the entire string in lowercase.

Answer 1

As mentioned in comments SSRS will not capitalize "$1" identifier since it will take it as literal string.

As workaround I suggest you use this custom code:

Go to Report Properties / Code and put this code:

Function ProperCase(InputString as String) As String
         Dim i as Integer
         If InputString  <> "" Then
            Mid(InputString , 1, 1) = UCase(Mid(InputString , 1, 1))
            For i = 1 To Len(InputString) - 1
               If Mid(InputString, i, 2) = "." + " " Then
                  Mid(InputString, i + 2, 1) = UCase(Mid(InputString, i + 2, 1))
               End If
            Next
            Return InputString
         End If
End Function

To use it invoke it in your textbox as follows:

=Code.ProperCase(LCase(Fields!Title.Value))

I've tested this string:

some test sentence. second Sentence. SHOULD THIS BE CAPITALIZED?

It returned:

Some test sentence. Second Sentence. Should this be capitalized?

Let me know it this can help you.