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strings

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strings [2018/02/14 05:13] – wolfgangriedmannstrings [2018/10/06 05:09] (current) – wolfgangriedmann
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 A string in X# is delimited by the double quotation mark: A string in X# is delimited by the double quotation mark:
  
-<code>cString := "this is a string"</code>+<code visualfoxpro>cString := "this is a string"</code>
  
 This is valid for the VO, Vulcan and Code dialects. In the VO dialect a string can also be delimited by the single quotation mark: This is valid for the VO, Vulcan and Code dialects. In the VO dialect a string can also be delimited by the single quotation mark:
-<code>cString := 'this is a string'</code>+<code visualfoxpro>cString := 'this is a string'</code>
  
 This is to make X# compatible to VO code. This is to make X# compatible to VO code.
  
 If you need to use special characters or double quotation mark in your string, the enhanced string does what you need: If you need to use special characters or double quotation mark in your string, the enhanced string does what you need:
-<code>cString := e"this is a \"string\"."</code>+<code visualfoxpro>cString := e"this is a \"string\"."</code>
  
 and of course you can also embed other control characters in your string: and of course you can also embed other control characters in your string:
-<code>cString := e"this is a multiline\nstring with another\nline"</code>+<code visualfoxpro>cString := e"this is a multiline\nstring with another\nline"</code>
  
 But you can do even more with interpolated strings: But you can do even more with interpolated strings:
-<code>local cMyVar := "Hi" as string+<code visualfoxpro>local cMyVar := "Hi" as string
  
 cString := i"{cMyVar} guys"</code> cString := i"{cMyVar} guys"</code>
  
 Of course you can use both at the same time: Of course you can use both at the same time:
-<code>cString := ei"this is a \"string\". that references {cLocalVar}"</code>+<code visualfoxpro>cString := ei"this is a \"string\". that references {cVariableName}"</code> 
 + 
 +As variable, not only a string variable can be used, but every type of object, and under the houd the '':ToString()'' method is called: 
 + 
 +<code visualfoxpro>local oPerson as Person 
 + 
 +cString := i"This is {oPerson}"</code> 
 + 
 +And if you wish, you can also use formatting expressions: 
 + 
 +<code visualfoxpro>local nValue as decimal 
 + 
 +nValue := 123.45m  
 +cString := i"nValue: {nValue:######.0000}" // nValue: 123,4500 
 +cString := i"nValue: {nValue:F6}" // nValue: 123,450000</code>  
 + 
 +In this case (as in the use with ToString()), if you need to embed the parentheses ''{'' and ''}'' in your string, they need to be doubled as in this sample: 
 +<code visualfoxpro>cConnection := i"Driver={{Microsoft access Driver (*.mdb)}};Dbq={cDatabaseFile};Uid=Admin;Pwd=;"</code>
  
 And only in the VO dialect, you need to prefix a char with the ''c'' prefix: And only in the VO dialect, you need to prefix a char with the ''c'' prefix:
-<code>cChar := c'a'</code>+<code visualfoxpro>cChar := c'a'</code> 
 + 
 +Please note that there is a major difference between C# and X#: in C# all strings are enhanced, and to make them normal, you must prefix them with the ''@'' character. 
 +In X# all strings are normal, and to be enhanced, they need the ''e'' prefix.
  
  
strings.1518585186.txt.gz · Last modified: 2018/02/14 05:13 by wolfgangriedmann