Convert List into Comma-Separated String

Question

My code is as below   public void ReadListItem          List lt uint gt  lst   new List lt uint gt      1  2  3  4  5         string str   string Empty       foreach  var item in lst           str   str   item              str   str Remove str Length - 1        Console WriteLine str       Output  1 2 3 4 5  What is the most simple way to convert the List lt uint gt  into a comma-separated string

User · Accepted Answer

Enjoy   Console WriteLine String Join      new List lt uint gt    1  2  3  4  5        First Parameter      Second Parameter  new List lt uint gt    1  2  3  4  5     String Join will take a list as a the second parameter and join all of the elements using the string passed as the first parameter into one single string

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static void Main string   args             List lt string gt  listStrings   new List lt string gt       C     Asp Net    SQL Server    PHP    Angular       string CommaSeparateString   GenerateCommaSeparateStringFromList listStrings     Console Write CommaSeparateString     Console ReadKey     private static string GenerateCommaSeparateStringFromList List lt string gt  listStrings  return String Join      listStrings      Convert a list of string to comma separated string C

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Follow this          List lt string gt  name   new List lt string gt              name Add  Latif            name Add  Ram            name Add  Adam            string nameOfString    string Join      name Select x   gt  x ToString    ToArray

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Using String Join  string Join lt string gt       lst      Using Linq Aggregation  lst  Aggregate  a  x    gt  a         x

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You can use String Join method to combine items   var str   String Join      lst

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you can also override ToString   if your list item have more than one string  public class ListItem        public string string1   get  set         public string string2   get  set         public string string3   get  set         public override string ToString                 return string Join                        string1            string2            string3               to get csv string   ListItem item   new ListItem    item string1    string1   item string2    string2   item string3    string3    List lt ListItem gt  list   new List lt ListItem gt     list Add item    string strinCSV    string Join   n   list Select x   gt  x ToString    ToArray

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We can try like this to separate list enties by comma  string stations    haul Routes    null  amp  amp  haul Routes Count  gt  0  String Join     haul Routes Select y   gt   y RouteCode  ToList      string Empty

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You can separate list entities by a comma like this     phones is a list of PhoneModel var phoneNumbers   phones Select m   gt  m PhoneNumber                           Aggregate new StringBuilder                             current  next    gt  current Append next  Append         ToString        Remove the trailing comma and space if  phoneNumbers Length  gt  1      phoneNumbers   phoneNumbers Remove phoneNumbers Length - 2  2

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You can refer below example for getting a  comma separated string array from list   Example   List lt string gt  testList  new List lt string gt     testList Add  Apple       Add string 1 testList Add  Banana       2 testList Add  Mango       3 testList Add  Blue Berry       4 testList Add  Water Melon       5  string JoinDataString   string Join      testList ToArray

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You can use String Join for this if you are using  NET framework  4 0    var result  String Join      yourList

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categories     sprots    news    categoriesList        join categories  print categoriesList    This is the output  sprots  news

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If you have a collection of ints   List lt int gt  customerIds  new List lt int gt      1 2 3 3 4 5 6 7 8 9        You can use string Join to get a string   var result   String Join      customerIds     Enjoy

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Try   Console WriteLine  string Join      lst Select x  gt x ToString    ToArray         HTH

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you can make use of google-collections jar which has a utility class called Joiner   String commaSepString Joiner on      join lst     or  you can use StringUtils class which has function called join To make use of StringUtils class you need to use common-lang3 jar  String commaSepString StringUtils join lst          for reference  refer this link http   techno-terminal blogspot in 2015 08 convert-collection-into-comma-separated html

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var result   string Join       user UserRoles Select x   gt  x Role RoleName                   result                 I used in MVC Razor View to evaluate and print all roles separated by commas

[c#] Convert List into Comma-Separated String

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