Hex String Formatting

[David Hall]

byte b = 10;

Console.WriteLine("{0} = 0x{0,2:X}", b);

// This example displays "10 = 0x A". Note the space between 0x and A

// I want it to display as: "10 = 0x0A" Note the zero between 0x and A

// How can I change the format string

// to pad it to 2 digits using a leading 0 if necessary

// instead of a space in the hex representation?

// Dave

 

[Ray Hsieh (Ray Djajadinata)]

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Hi David,

Use X2 instead of just X.

David Hall wrote:
| byte b = 10;
|
| Console.WriteLine("{0} = 0x{0,2:X}", b);
|
| // This example displays "10 = 0x A". Note the space between 0x and A
|
| // I want it to display as: "10 = 0x0A" Note the zero between 0x and A
|
| // How can I change the format string
|
| // to pad it to 2 digits using a leading 0 if necessary
|
| // instead of a space in the hex representation?
|
| // Dave
|
|


- --
Ray Hsieh (Ray Djajadinata) [SCJP, SCWCD]
ray underscore usenet at yahoo dot com
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[David Hall]

Thanks, The following changes both work correctly, and messing with the
numbers gives me a little more insight as to how the format specifers work
in practice...

byte b = 10;

Console.WriteLine("{0} = 0x{0,0:X2}", b);

Console.WriteLine("{0} = 0x{0,2:X2}", b);

Just for my own curiosity, can anyone show me where to find this info on
MSDN? I'm glad it works, but I still can't find any docs that say it
should...

Thanks again,

Dave

 

[Ray Hsieh (Ray Djajadinata)]

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Hi David,

I don't have the exact page with me right now, but searching for "format
string composite" should give you what you want.

David Hall wrote:

| Thanks, The following changes both work correctly, and messing with the
| numbers gives me a little more insight as to how the format specifers work
| in practice...
|
| byte b = 10;
|
| Console.WriteLine("{0} = 0x{0,0:X2}", b);
|
| Console.WriteLine("{0} = 0x{0,2:X2}", b);
|
| Just for my own curiosity, can anyone show me where to find this info on
| MSDN? I'm glad it works, but I still can't find any docs that say it
| should...
|
| Thanks again,
|
| Dave

- --
Ray Hsieh (Ray Djajadinata) [SCJP, SCWCD]
ray underscore usenet at yahoo dot com
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[David Hall]

Thanks again Ray.

Your search criteria led me to
http://msdn.microsoft.com/library/d...de/html/cpconstandardnumericformatstrings.asp.
The first paragraph describes the format specification, and the examples at
http://msdn.microsoft.com/library/d...standardnumericformatstringsoutputexample.asp
explain it pretty well. These two pages are definitely going to be
bookmarked.

Dave