C# Static cast char to string
I am trying to declare a constant char to hold a key and a constant string to hold a message telling the user to press the key:
...
private const KEY = 'r';
private const string MSG = "Press " + KEY + " to restart.";
...
I need to explicitly cast the key char to a string since the implicit cast is done during runtime. However, I can't figure out the way to cast a character to a string at compile time. I've seen ToString () on the internet, but it's performed at runtime and therefore doesn't work. I have the key char as a separate variable because it is used several times in the program. Does anybody know how to statically cast a char to a string?
c# string type-conversion character string-concatenation
asked Nov 11 at 2:30
Andrew Pratt
254
add a comment |
I am trying to declare a constant char to hold a key and a constant string to hold a message telling the user to press the key:
...
private const KEY = 'r';
private const string MSG = "Press " + KEY + " to restart.";
...
I need to explicitly cast the key char to a string since the implicit cast is done during runtime. However, I can't figure out the way to cast a character to a string at compile time. I've seen ToString () on the internet, but it's performed at runtime and therefore doesn't work. I have the key char as a separate variable because it is used several times in the program. Does anybody know how to statically cast a char to a string?
c# string type-conversion character string-concatenation
asked Nov 11 at 2:30
Andrew Pratt
254
add a comment |
I am trying to declare a constant char to hold a key and a constant string to hold a message telling the user to press the key:
...
private const KEY = 'r';
private const string MSG = "Press " + KEY + " to restart.";
...
I need to explicitly cast the key char to a string since the implicit cast is done during runtime. However, I can't figure out the way to cast a character to a string at compile time. I've seen ToString () on the internet, but it's performed at runtime and therefore doesn't work. I have the key char as a separate variable because it is used several times in the program. Does anybody know how to statically cast a char to a string?
c# string type-conversion character string-concatenation
asked Nov 11 at 2:30
Andrew Pratt
254
I am trying to declare a constant char to hold a key and a constant string to hold a message telling the user to press the key:
...
private const KEY = 'r';
private const string MSG = "Press " + KEY + " to restart.";
...
I need to explicitly cast the key char to a string since the implicit cast is done during runtime. However, I can't figure out the way to cast a character to a string at compile time. I've seen ToString () on the internet, but it's performed at runtime and therefore doesn't work. I have the key char as a separate variable because it is used several times in the program. Does anybody know how to statically cast a char to a string?
c# string type-conversion character string-concatenation
c# string type-conversion character string-concatenation
asked Nov 11 at 2:30
Andrew Pratt
254
asked Nov 11 at 2:30
Andrew Pratt
254
asked Nov 11 at 2:30
Andrew Pratt
254
asked Nov 11 at 2:30
Andrew Pratt
254
asked Nov 11 at 2:30
Andrew Pratt
254
254
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
The short answer is that you can't compose a string with anything other than string fragments.
You have a few options though. You can make both constants string types:
private const string KEY = "r";
private const string MSG = "Press " + KEY + " to restart.";
Another option would be to compose the string at runtime:
private const char KEY = 'r';
private static string MSG => "Press " + KEY + " to restart.";
answered Nov 11 at 2:43
DavidG
67.8k9110125
Thanks, I wanted to avoid this initially, but I ended up needing it converted to a string every time I needed it, so it makes sense to store it as a string
– Andrew Pratt
Nov 11 at 3:39
add a comment |
You can't const string with other values which is const.
You can try to use readonly.
readonly can only modify values in the class constructor method, it will set that value at runtime.
private const char KEY = 'r';
private readonly string MSG = "Press " + KEY + " to restart.";
answered Nov 11 at 3:00
D-Shih
25.2k61431
Thank you, that would work, but I'm going with davidg's suggestion to change the char to be a string because I ended up only ever needing it as a string. I'll be sure to remember both ways in the future though
– Andrew Pratt
Nov 11 at 3:41
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
The short answer is that you can't compose a string with anything other than string fragments.
You have a few options though. You can make both constants string types:
private const string KEY = "r";
private const string MSG = "Press " + KEY + " to restart.";
Another option would be to compose the string at runtime:
private const char KEY = 'r';
private static string MSG => "Press " + KEY + " to restart.";
answered Nov 11 at 2:43
DavidG
67.8k9110125
Thanks, I wanted to avoid this initially, but I ended up needing it converted to a string every time I needed it, so it makes sense to store it as a string
– Andrew Pratt
Nov 11 at 3:39
add a comment |
The short answer is that you can't compose a string with anything other than string fragments.
You have a few options though. You can make both constants string types:
private const string KEY = "r";
private const string MSG = "Press " + KEY + " to restart.";
Another option would be to compose the string at runtime:
private const char KEY = 'r';
private static string MSG => "Press " + KEY + " to restart.";
answered Nov 11 at 2:43
DavidG
67.8k9110125
Thanks, I wanted to avoid this initially, but I ended up needing it converted to a string every time I needed it, so it makes sense to store it as a string
– Andrew Pratt
Nov 11 at 3:39
add a comment |
The short answer is that you can't compose a string with anything other than string fragments.
You have a few options though. You can make both constants string types:
private const string KEY = "r";
private const string MSG = "Press " + KEY + " to restart.";
Another option would be to compose the string at runtime:
private const char KEY = 'r';
private static string MSG => "Press " + KEY + " to restart.";
answered Nov 11 at 2:43
DavidG
67.8k9110125
The short answer is that you can't compose a string with anything other than string fragments.
You have a few options though. You can make both constants string types:
private const string KEY = "r";
private const string MSG = "Press " + KEY + " to restart.";
Another option would be to compose the string at runtime:
private const char KEY = 'r';
private static string MSG => "Press " + KEY + " to restart.";
answered Nov 11 at 2:43
DavidG
67.8k9110125
answered Nov 11 at 2:43
DavidG
67.8k9110125
answered Nov 11 at 2:43
DavidG
67.8k9110125
answered Nov 11 at 2:43
DavidG
67.8k9110125
67.8k9110125
Thanks, I wanted to avoid this initially, but I ended up needing it converted to a string every time I needed it, so it makes sense to store it as a string
– Andrew Pratt
Nov 11 at 3:39
add a comment |
Thanks, I wanted to avoid this initially, but I ended up needing it converted to a string every time I needed it, so it makes sense to store it as a string
– Andrew Pratt
Nov 11 at 3:39
Thanks, I wanted to avoid this initially, but I ended up needing it converted to a string every time I needed it, so it makes sense to store it as a string
– Andrew Pratt
Nov 11 at 3:39
Thanks, I wanted to avoid this initially, but I ended up needing it converted to a string every time I needed it, so it makes sense to store it as a string
– Andrew Pratt
Nov 11 at 3:39
add a comment |
You can't const string with other values which is const.
You can try to use readonly.
readonly can only modify values in the class constructor method, it will set that value at runtime.
private const char KEY = 'r';
private readonly string MSG = "Press " + KEY + " to restart.";
answered Nov 11 at 3:00
D-Shih
25.2k61431
Thank you, that would work, but I'm going with davidg's suggestion to change the char to be a string because I ended up only ever needing it as a string. I'll be sure to remember both ways in the future though
– Andrew Pratt
Nov 11 at 3:41
add a comment |
You can't const string with other values which is const.
You can try to use readonly.
readonly can only modify values in the class constructor method, it will set that value at runtime.
private const char KEY = 'r';
private readonly string MSG = "Press " + KEY + " to restart.";
answered Nov 11 at 3:00
D-Shih
25.2k61431
Thank you, that would work, but I'm going with davidg's suggestion to change the char to be a string because I ended up only ever needing it as a string. I'll be sure to remember both ways in the future though
– Andrew Pratt
Nov 11 at 3:41
add a comment |
You can't const string with other values which is const.
You can try to use readonly.
readonly can only modify values in the class constructor method, it will set that value at runtime.
private const char KEY = 'r';
private readonly string MSG = "Press " + KEY + " to restart.";
answered Nov 11 at 3:00
D-Shih
25.2k61431
You can't const string with other values which is const.
You can try to use readonly.
readonly can only modify values in the class constructor method, it will set that value at runtime.
private const char KEY = 'r';
private readonly string MSG = "Press " + KEY + " to restart.";
answered Nov 11 at 3:00
D-Shih
25.2k61431
edited Nov 11 at 3:09
answered Nov 11 at 3:00
D-Shih
25.2k61431
answered Nov 11 at 3:00
D-Shih
25.2k61431
answered Nov 11 at 3:00
D-Shih
25.2k61431
25.2k61431
Thank you, that would work, but I'm going with davidg's suggestion to change the char to be a string because I ended up only ever needing it as a string. I'll be sure to remember both ways in the future though
– Andrew Pratt
Nov 11 at 3:41
add a comment |
Thank you, that would work, but I'm going with davidg's suggestion to change the char to be a string because I ended up only ever needing it as a string. I'll be sure to remember both ways in the future though
– Andrew Pratt
Nov 11 at 3:41
Thank you, that would work, but I'm going with davidg's suggestion to change the char to be a string because I ended up only ever needing it as a string. I'll be sure to remember both ways in the future though
– Andrew Pratt
Nov 11 at 3:41
Thank you, that would work, but I'm going with davidg's suggestion to change the char to be a string because I ended up only ever needing it as a string. I'll be sure to remember both ways in the future though
– Andrew Pratt
Nov 11 at 3:41
add a comment |
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