How to insert newline in string literal

Question

In  NET I can provide both  r or  n string literals  but there is a way to insert something like  new line  special character like Environment NewLine static property

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string myText          lt div class   firstLine   gt  lt  div gt         lt div class   secondLine   gt  lt  div gt         lt div class   thirdLine   gt  lt  div gt         that s not it    string myText      lt div class   firstLine   gt  lt  div gt     lt div class   secondLine   gt  lt  div gt     lt div class   thirdLine   gt  lt  div gt

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I like more the  pythonic way   List lt string gt  lines   new List lt string gt         line1        line2       String Format   0  -  1     2             someVar          othervar           thirdVar           if foo      lines Add  line3     return String Join Environment NewLine  lines

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Here  Environment NewLine doesn t worked   I put a   lt br    in a string and worked    Ex       ltrYourLiteral Text    First line  lt br  Second Line

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One more way of convenient placement of Environment NewLine in format string  The idea is to create string extension method that formats string as usual but also replaces  nl  in text with Environment NewLine  Usage       X  0   nl  Y  1  nl  X Y  2   FormatIt 1  2  1 2      gives      X 1     Y 2     X Y 3   Code          lt summary gt          Use  string  FormatIt      instead of string Format  string               Use  nl  in text to insert Environment NewLine          lt  summary gt          lt exception cref  ArgumentNullException  gt If format is null lt  exception gt       StringFormatMethod  format        public static string FormatIt this string format  params object   args                if  format    null  throw new ArgumentNullException  format             return string Format format Replace   nl    Environment NewLine   args           Note   If you want ReSharper to highlight your parameters  add attribute to the method above   StringFormatMethod  format    This implementation is obviously less efficient than just String Format  Maybe one  who interested in this question would be interested in the next question too  Named string formatting in C

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static class MyClass      public const string NewLine   n      string x    first line    MyClass NewLine    second line

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If I understand the question   Couple   r n  to get that new line below in a textbox   My example worked -     string s1   comboBox1 Text         s1 is the variable assigned to box 1  etc     string s2   comboBox2 Text      string both   s1     r n    s2     textBox1 Text   both    A typical answer could be s1                           s2   in the text box using defined type style

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If you really want the New Line string as a constant  then you can do this   public readonly string myVar   Environment NewLine    The user of the readonly keyword in C  means that this variable can only be assigned to once  You can find the documentation on it here  It allows the declaration of a constant variable whose value isn t known until execution time

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newer  net versions allow you to use   in front of the literal which allows you to use variables inside like follows   var x     Line 1 Environment NewLine Line 2 Environment NewLine Line 3

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Well  simple options are    string Format   string x   string Format  first line 0 second line   Environment NewLine    String concatenation   string x    first line    Environment NewLine    second line    String interpolation  in C 6 and above    string x     first line Environment NewLine second line      You could also use  n everywhere  and replace   string x    first line nsecond line nthird line  Replace   n                                                            Environment NewLine     Note that you can t make this a string constant  because the value of Environment NewLine will only be available at execution time

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If you want a const string that contains Environment NewLine in it you can do something like this   const string stringWithNewLine     first line second line third line     EDIT  Since this is in a const string it is done in compile time therefore it is the compiler s interpretation of a newline  I can t seem to find a reference explaining this behavior but  I can prove it works as intended  I compiled this code on both Windows and Ubuntu  with Mono  then disassembled and these are the results      As you can see  in Windows newlines are interpreted as  r n and on Ubuntu as  n

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If you are working with Web application you can try this   StringBuilder sb   new StringBuilder    sb AppendLine  Some text with line one    sb AppendLine  Some mpre text with line two    MyLabel Text   sb ToString   Replace Environment NewLine    lt br   gt

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var sb   new StringBuilder    sb Append first   sb AppendLine       which is equal to Append Environment NewLine   sb Append second   return sb ToString

[c#] How to insert newline in string literal?

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