Line Break in Ssrs Expression

UseEnvironment.NewLine instead of vbcrlf

If your placeholder is in html enabled mode then "<br />" will work as a newline

This works for me:

(In Visual Studio)

1. Open the .rdl file in Designer (right-click on file in Solution Explorer > View Designer)
2. Right-click on the Textbox you are working with, choose Expression

3. In the Set expression for: Value box enter your expression like:

   ="first line of text. Param1 value: " & Parameters!Param1.Value & Environment.NewLine() 
   & "second line of text. Field value: " & Fields!Field1.Value & Environment.NewLine() 
   & "third line of text."
   

In Order to implement Line Break in SSRS, there are 2 ways

1. Setting HTML Markup Type
   Update the Markup Type of the placeholder to HTML and then make use of <br/> tag to introduce line break within the expression

="first line of text. Param1 value: " & Parameters!Param1.Value & "<br/>" & Parameters!Param1.Value

2. Using Newline function
   Make use of Environment.NewLine() function to add line break within the expression.

="first line of text. Param1 value: " & Parameters!Param1.Value & Environment.NewLine() & Parameters!Param1.Value

Note:- Always remember to leave a space after every "&" (ampersand) in order to evaluate the expression properly

You should NOT quote your Environment.NewLine man. Try "Your Text" & Environment.NewLine.

Use the vbcrlf for new line in SSSR. e.g.

= First(Fields!SAPName.Value, "DataSet1") & vbcrlf & First(Fields!SAPStreet.Value, "DataSet1") & vbcrlf & First(Fields!SAPCityPostal.Value, "DataSet1") & vbcrlf & First(Fields!SAPCountry.Value, "DataSet1") 

I've always had luck with the Chr(10) & Chr(13) - I have provided a sample below. This is an expression for an address text box I have in a report.

=Iif(Fields!GUAR_STREET_2.Value <> "",Fields!GUAR_STREET.Value & Chr(10) & Chr(13) & LTrim(Fields!GUAR_STREET_2.Value),Fields!GUAR_STREET.Value)

Also, if you are building a string you need to concatenate stuff together with an & not a + Here is what I think your example should look like

    =IIF(First(Fields!VCHTYPE.Value, "Dataset1")="C","This is a huge paragrpah of text." &
Chr(10) & Chr(13) & "separated by line feeds at each paragraph." &
Chr(10) & Chr(13) & Chr(10) & Chr(13) & "I want to separate the paragraphs." &
Chr(10) & Chr(13) &  Chr(10) & Chr(13) & "Its not working though."
, "This is the second huge paragraph of text." &
Chr(10) & Chr(13) & "separated by line feeds at each paragraph." &
Chr(10) & Chr(13) & Chr(10) & Chr(13) & "I want to separate the paragraphs." &
Chr(10) & Chr(13) & Chr(10) & Chr(13) & "Its not working though." )

It wasn't working for me either. vbcrlf and Environment.Newline() both had no effect. My problem was that the Placeholder Properties had a Markup type of HTML. When I changed it to None, it worked like a champ!

You Can Use This One

="Line 1" & "<br>" & "Line 2"

In my case, Environment.NewLine was working fine while previewing the report in Visual Studio. But when I tried to publish the rdl to Dynamics 365 CE, I received the error "The report server has RDLSandboxing enabled and the Value expression for the text box 'Textbox10' contains a reference to a type, namespace, or member 'Environment' that is not allowed."

So I had to replace Environment.NewLine with vbcrlf.