convert string array to string

Question

I would like to convert a string array to a single string   string   test   new string 2   test 0     Hello    test 1     World      I would like to have something like  Hello World

User · Answer

A simple string Concat   is what you need   string   test   new string 2    test 0     Hello    test 1     World     string result   string Concat test     If you also need to add a seperator  space  comma etc  then  string Join   should be used   string   test   new string 2    test 0     Red   test 1     Blue    string result   string Join      test     If you have to perform this on a string array with hundereds of elements than string Join   is better by performace point of view  Just give a     blank  argument as seperator  StringBuilder can also be used for sake of performance  but it will make code a bit longer

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string ConvertStringArrayToString string   array                              Concatenate all the elements into a StringBuilder                     StringBuilder strinbuilder   new StringBuilder            foreach  string value in array                        strinbuilder Append value               strinbuilder Append                         return strinbuilder ToString

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I used this way to make my project faster   RichTextBox rcbCatalyst   new RichTextBox         Lines   arrayString    string text   rcbCatalyst Text  rcbCatalyst Dispose     return text    RichTextBox Text will automatically convert your array to a multiline string

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string   test   new string 2    test 0     Hello    test 1     World     string Join     test

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A slightly faster option than using the already mentioned use of the Join   method is the Concat   method  It doesn t require an empty delimiter parameter as Join   does  Example   string   test   new string 2   test 0     Hello    test 1     World     string result   String Concat test     hence it is likely faster

User · Answer

Try   String Join     test     which should return a string joining the two elements together     indicates that you want the strings joined together without any separators

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In the accepted answer  String Join isn t best practice per its usage  String Concat should have be used since OP included a trailing space in the first item   Hello    instead of using a null delimiter    However  since OP asked for the result  Hello World    String Join is still the appropriate method  but the trailing whitespace should be moved to the delimiter instead      string   test   new string 2       test 0     Hello       test 1     World     string   test      Hello    World        Alternative array creation syntax  string result   String Join      test

User · Answer

Aggregate can also be used for same   string   test   new string 2   test 0     Hello    test 1     World    string joinedString   test Aggregate  prev  current    gt  prev         current

User · Answer

Like this   string str  test 0  test 1     You can also use a loop   for int i 0  i lt 2  i        str    test i

[c#] convert string array to string

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