Function that convert Hexadecimal to Binary?

[Guest]

I want to convert Hexadecimal or normal integer to Binary. Does VB.Net has function to do that? I only found Hex function that convert normal integer to Hexadecimal.

 

[Jay B. Harlow [MVP - Outlook]]

MrKrich,
You can use Convert.ToInt32 to go from a string to an integer.

You can use Convert.ToString to go from a integer to a String.

Both support both Hex & Binary, as well as octal & decimal (2, 8, 10, or 16
from base)

Dim s As String = "fab4"
Dim i As Integer = Convert.ToInt32(s, 16)

Dim s2 As String = Convert.ToString(i, 2)
Dim i2 As Integer = Convert.ToInt32(s2, 2)

Hope this helps
Jay

I want to convert Hexadecimal or normal integer to Binary. Does VB.Net has

function to do that? I only found Hex function that convert normal integer
to Hexadecimal.

 

[Herfried K. Wagner [MVP]]

I want to convert Hexadecimal or normal integer to Binary. Does VB.Net
has function to do that? I only found Hex function that convert normal
integer to Hexadecimal.

In addition to Jay's reply, you can use 'Val' to parse a string
containing a number in hexadecimal format.

 

[Jason L James]

Try is code. Is takes the text from TextBox1
and converts it into a string of 1's and 0's that
represent the binary code of the number.

Dim from As Int32
If IsNumeric(TextBox1.Text) Then
from = TextBox1.Text
Dim n As Int16

Do
n = from Mod 2
TextBox2.Text = n & TextBox2.Text
from \= 2
Loop Until from = 0

End If

Hope this helps.

Jason.

 

[Greg Burns]

Jason, try this shortcut

TextBox2.Text=Convert.ToString(from, 2)

 

[Jay B. Harlow [MVP - Outlook]]

Jason,
In addition to trying Convert.ToString as Greg and I suggested.

Consider using <<= or >>= instead of *= & \= by 2.

In VS.NET << is the left shift operator, while >> is the right shift
operator

So:

from \= 2

from >>= 1

Are both the same, while the second may be faster, as bit shifting is
normally faster then division.

Hope this helps
Jay

Try is code. Is takes the text from TextBox1
and converts it into a string of 1's and 0's that
represent the binary code of the number.

Dim from As Int32
If IsNumeric(TextBox1.Text) Then
from = TextBox1.Text
Dim n As Int16

Do
n = from Mod 2
TextBox2.Text = n & TextBox2.Text
from \= 2
Loop Until from = 0

End If

Hope this helps.

Jason.

has function to do that? I only found Hex function that convert normal
integer to Hexadecimal.

 

[Jason L James]

Jay/Greg,

Thanks for the feedback. I have been using variations
of the routine I submitted in VB6 and C for a long time.
Your improvements will help the speed and readability
of my code considerably.

The string.convert method has a huge number of
possibilities in my VB.Net code.

Regards,

Jason.