VB.Net - How to convert decimal number to HEX or Binary?

[predseda]

255(dec) = FF(hex) = 11111111(BIN)

 

I have a decimal number (Dim i As Byte / Integer) an i need to convert it to string and transform it to hex or binary.

I know how to do this manually, but i think in .NET are implemented instructions for tihs.

 

Example:

Dim i As Byte = 255

Dim str As String

 

str = i.ConvertToHEX ' How to do this?

Console.WriteLine str

 

----

Output : FF

 

Thanx

 

predseda

[PlausiblyDamp]

Dim i As Integer = 255
Dim s As String
s = i.ToString("X")
Console.Writeline(s)

[predseda]

Thanks a lot PlausiblyDamp,

 

s = i.ToString("X")

So this is hexadecimal number system, what about Binary?

---

And next situation, convert string with hex/binary value to integer variabile

Dim str As String = "FF"

Dim int As Integer

 

int = Convert_To_Integer_From_HEX(str)

 

Thanks

 

predseda

[Nerseus]

To convert from/to arbitrary bases, use Convert:

int i = 33;
string binary = Convert.ToString(i, 2);
string hex = Convert.ToString(i, 16);
int binaryToInt = Convert.ToInt32(binary, 2);
int hexToInt = Convert.ToInt32(hex, 16);

 

Though I prefer the ToString method to convert an int to hex, when needed. I would guess that internally, the ToString method for an int is using Convert.ToString behind the scenes so it might be a bit faster. I'd go with whatever seems easier to read/understand for you.

 

-ner

[predseda]

Yes...! This is exactly what I need.

 

Thanks a lot Nerseus.

 

predseda

[VBExpert]

An easier way to do convert to hex would be to use the Conversion.Hex() function:

C#:

int i = 65;
string hex = Conversion.Hex(i);

 

VB:

Dim i As Integer = 65
Dim hex As String = Conversion.Hex(i)