Converting hexadecimal to binary

Question

I want to Convert hexadecimal numbers to binary numbers.I search some posts but couldn't find a c# language program.

I used this:

value = 0xFFFF;
decimalNum = Convert.ToString(value, 16);
Console.WriteLine(value);

and then I converted it to binary number. Are there any easier and fast way to do this?

Easier than a single method call for each base conversion? I would assume the .NET runtime implementation of ToString() will perform well. — Eric J.
– Eric J., Commented Sep 3, 2015 at 22:37

Jonathan Carroll · Accepted Answer · 2015-09-03 22:46:41Z

2

You can do this:

var value = 0xFFFF; 
value = Convert.ToString(Convert.ToInt32(value.ToString(), 16), 2);
Console.WriteLine(value);
// 1100101010100110101

edited Sep 3, 2015 at 22:46

answered Sep 3, 2015 at 22:39

Jonathan Carroll

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3 Comments

AliTeo Over a year ago

Thank you Jonathan this is what I want!

Millie Smith Over a year ago

Semicolon. five characters to go

Jonathan Carroll Over a year ago

Thanks Millie. Fixed ;)

H. Dao · Accepted Answer · 2021-05-06 20:26:37Z

0

// Generate date in hex
DateTime dt = new DateTime();
dt = DateTime.Now;
string str = dt.ToString("yyyyMMddhhmmss");
string hexDate = dt.Ticks.ToString("X2");

// Convert hex date to date string
UInt64 numericDate = UInt64.Parse(hexDate, 
       System.Globalization.NumberStyles.AllowHexSpecifier);
long binaryDate = Convert.ToInt64(numericDate);
string strDate = DateTime.FromBinary(binaryDate).ToShortDateString();

answered May 6, 2021 at 20:26

H. Dao

1

1 Comment

Ghost Over a year ago

While this code may solve the question, including an explanation of how and why this solves the problem would really help to improve the quality of your post, and probably result in more up-votes. Remember that you are answering the question for readers in the future, not just the person asking now. Please edit your answer to add explanations and give an indication of what limitations and assumptions apply.

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