change numeric base of negative numbers

Question

How to convert a negative decimal number to a hexadecimal one? I know how to convert positive numbers from one base to another. The widows calculator returns a huge number something like FFFFFFFFFFFFCFC7 in hex for -12345 in dec.The value that I need to process further more is CFC7, but I don't know how to get it using C#.

Look at this post http://stackoverflow.com/questions/1139957/c-sharp-convert-integer-to-hex-and-back-again — fenix2222, Jun 22 '12 at 06:32

score 0 · Accepted Answer · answered Jun 22 '12 at 06:37

0

Not exactly sure if that is what you need:

int i = -12345;
string test = i.ToString("X"); // test will hold: "FFFFCFC7"
int HexI = Convert.ToInt32(test, 16); // HexI will hold: -12345

answered Jun 22 '12 at 06:37

Habib

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Ebad Masood · Answer 2 · 2012-06-22T11:30:40.847

0

Try this:

int decimalValue = -12345;
string hexVal = String.Format("{0:x2}", decimalValue);

edited Jun 22 '12 at 11:30

answered Jun 22 '12 at 06:40

Ebad Masood

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change numeric base of negative numbers

2 Answers2