Convert int string to hex string

Question

How would I convert a string that represents an integer like "4322566" to a hex string?

You want to take a string equal to "4322566" and generate "41F506", right? — jball
– jball, Commented Jun 2, 2010 at 23:14

Michael Petrotta · Accepted Answer · 2010-06-02 23:31:32Z

11

string s = int.Parse("4322566").ToString("X");

edited Jun 2, 2010 at 23:31

Michael Petrotta

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answered Jun 2, 2010 at 23:07

Femaref

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3 Comments

Aren Over a year ago

You may want to make this more fault-tollerant with TryParse

Robert Over a year ago

I get a overflow exception when attempting to convert 2309737967

Femaref Over a year ago

2309737967 is above int.MaxValue (2147483647). Use long instead.

jball · Accepted Answer · 2010-06-03 16:16:13Z

2

int temp = 0;
string hexOut = string.Empty;
if(int.TryParse(yourIntString, out temp))
{
    hexOut = temp.ToString("X");
}

To handle larger numbers per your comment, written as a method

public static string ConvertToHexString(string intText)
{
    long temp = 0; 
    string hexOut = string.Empty; 
    if(long.TryParse(intText, out temp))
    { 
        hexOut = temp.ToString("X"); 
    } 
    return hexOut;
}

edited Jun 3, 2010 at 16:16

answered Jun 2, 2010 at 23:09

jball

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2 Comments

Robert Over a year ago

I get a overflow exception when attempting to convert 2309737967

jball Over a year ago

change the type of temp to long and use long.TryParse

Kevin L. · Accepted Answer · 2010-06-02 23:06:14Z

1

Try .ToString("X").

answered Jun 2, 2010 at 23:06

Kevin L.

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Comments

dbasnett · Accepted Answer · 2010-06-02 23:08:21Z

1

or .ToString("x") if you prefer lowercase hex.

answered Jun 2, 2010 at 23:08

dbasnett

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Comments

griegs · Accepted Answer · 2010-06-02 23:07:52Z

0

Try

int otherVar= int.Parse(hexstring ,
System.Globalization.NumberStyles.HexNumber);

answered Jun 2, 2010 at 23:07

griegs

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1 Comment

Femaref Over a year ago

int -> string, not string -> int.

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