How can I convert a subnetmask into binary, so I'll end up with 32 digits?I can convert it into Binary, using Convert.ToString(Long-to-convert, 2)But a subnetmask of 255.255.255.0 returns(it returns it without the spaces though):
1111 1111 1111 1111 1111 1111 0
When I want it to be:
1111 1111 1111 1111 1111 1111 0000 0000
[code].....
How can I convert a subnetmask into binary, so I'll end up with 32 digits? I can convert it into Binary, using Convert.ToString(Long-to-convert, 2). But a subnetmask of 255.255.255.0 returns(it returns it without the spaces though):
1111 1111 1111 1111 1111 1111 0
When I want it to be:
1111 1111 1111 1111 1111 1111 0000 0000
I need test data for a IP Subnet calculator I have developed. I have tested some obvious scenarios, and all seems good, but the person developing can often be the wrong person to test.
The calculator can do one of two things:
1 - Given an existing network and CIDR (mask), and a new CIDR it will create a number of networks with the appropriate number of hosts.
2 - Given an existing network and CIDR (mask), and a list of c,h, (c = count, h=number of hosts) it will create the networks.
I am trying to verify that I have a valid subnet mask. I have already verified that the string format 255.255.255.0 or whatever 255.255.240.0 converts to a UInt32 but now I need to make sure its actually a subnet mask.
The bits should be split between 1's for the network part and 0's for the host part. It should start with all 1's and end in all 0's if it goes from 1's to 0's then finds any more 1's its an invalid subnet mask.
As part of my application I am hoping to be able to get the user to enter their IP address and subnet mask which will then enumerate all of the hosts in between which can then be scanned for various open ports/applications installed.
For instance, With a network of 10.91.100.0/255.255.255.252 hosts are valid 10.91.100.1 - .2
How can this be done in vb.net? I would assume also some error checking would need to be put in place to confirm as to whether the subnet mask was valid as well?
Can anyone point me to some code which can help obtain the network address from the host IP and subnet mask?
View 3 RepliesI am need of help. I need to know how to convert Binary to BCD in VB 2005 C++.
View 1 RepliesHow do I convert this file (Attached) to a readable text file (its XML code).I found code here and there but doesnt work. I want to grab the whole file and dump it back out as readable text.
View 10 RepliesI want to make a program that can make:
1.) check if a character is in a text file
2.) if the character exist then convert the character into binary code
3.) display the result in a textbox.
Here is my code:
' s is my txt.file
' in this code i want to check if char "g" is the in the txt.file
If InStr(1, s, "g") > 0 Then
[Code].....
How do I convert hex and integers to binary?
View 5 RepliesI have created in Visual Studio 2008 a Form with two buttons, a PictureBox and a TextBox. I've made the first button to load an image from my hard disk and I want to make the second button to convert the image into binary code and show the string in the TextBox. Image format is Jpeg. Here's the code for the first button:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click PictureBox1.Image = Image.FromFile("D:\Pa.Pei\Pa.Pei. - Ergasies\4o Έτος\Ανάλυση Εικόνας\011.jpg")
[Code]...
how to convert integer to binaryexample: 1 to 00012 to 0010
View 8 RepliesI've used .NET for a long time now but I have come across something I haven't had to do before and I'm struggling to work it out. What I need to do is work with binary numbers and convert them to decimals and vice versa but not necessarily using even numbers e.g. I would like to represent a number between 0 and 2047 which can be represented with 11 binary digits. Plus I want to represent a second number between 0 and 500000 which can be represented with 19 binary digits, and a third number, fourth etc. Then I want to string the whole binary results together and split it in to sections of lets say 5 bits each and convert those back to decimal.
[Code]...
I need to convert a Short to his binary equivalent. For example:Dim x As Short = 20480 And then I need a method to get the binary thingy, which in this case is: 101000000000000
I searched for a answer using google, but I couldn't find a proper explanaition.
Id like to create a simple program consisting two textboxes and a button, "whats the point i hear you ask?" simple, id like to be able to enter in a string into the first textbox, press the button and then have it converted into binary and displayed into the second textbox.
View 1 RepliesI got to a snag recently in the program. I know exactly what is going wrong, and I know exactly what will fix it. However, I do not know how to code what I need.
Code:
'a function to determine whether the pokemon is shiny
Function SHINY(ByVal data() As Byte, ByVal IDnumber As Integer, ByVal SIDnumber As Integer)
[Code].....
So as you can see, I need to convert a binary string into an integer so it will work properly. Everything else is fine, I've tested it out a lot and done a lot of debugging, even manually, and I'm sure everything will work. All I need is the code to convert it.
convert binary image to jpg or png one.i've saved some types of images in my database but now i want to display them but i can't do it
View 1 Repliesconverting an image file into binary text in VB 2010.I am working on a compression program and need to see the actual binary as text. I have code for converting text files to binary and it works fine but, need to attempt files with greater randomness that are typically uncompressable.(JPG's) I understand that the file conversions may be huge. I plan on manipulating the binary in smaller manageable chunks.
View 1 RepliesIs there an easy way to do this in .NET.I see the Convert.ToXXXX, but no Convert.ToBinaryString.
View 2 RepliesI need to convert PDF files to Binary strings, the resulting string looks like this"JVBERi0xLjQNJeLjz9MNCjI1IDAgb2JqDTw8L0xpbm...."
I have a program that pulls all the PDF files in a directory, and reads using Binary Reader, but I am not getting the results I need.[code]...
How can i convert a string to binary (8-Bit Binary to be specific) in vb.net?Dim ThnkU as ThankYouNote ThnkU.note="Thanks for your help" ThnkU.Name="Dustin_K" Dim PS as string = "Mark my post
View 4 RepliesHow? I am willing to make a text to binary to text converter, but how can i convert text to binary?
View 1 RepliesI'm currently working on a program that would take the binary data from my access database and convert it back into jpeg format so I can store the images in a folder. I'm really new to VB so right now I'm pretty much stumped.
Code:
Option Explicit On
Public Class Form1
Private cn As ADODB.Connection
[Code]....
How to convert a binary stream (which is a string of numbers) into Double Array ? (VB.NET 2008)
View 3 RepliesI would like to convert an Bitmap image to an icon in VB.NET but I have to use the binary data of each to somehow accomplish that. Doing research on Bitmap I found how the files are structured. I know that bitmaps have the Bitmap Filer header, Bitmap infoheader, and the colorallet. Each of these contain a certain amount of bytes, and I a have to get these from the bitmap file. The icon header and info header are similar to the bitmap. I know that there are libraries in VB.NET that do that easily, butthis is for a project for school and I am not supposed to use that. I just want to ask how
View 1 RepliesI wrote a programme about 12 years ago in visual basic 3.Since then I have moved interstate and changed jobs quite a few time and lost the original Visual Basic 3 discs.Visual Basic 3 saved the files in a binary format that has not been used in any other version of Visual Basic. So now I cannot read or modify the files.
View 3 RepliesI am using this to convert a number to binary representation:
[Code]...
I'm supposed to convert the string in one textbox to binary, and display it as binary, in another textbox. I can make this part work, but when I want to convert it from binary and back to text, it all goes bananas.Here's the code I'm using for the conversion:
Private Sub Button1_Click(ByVal sender As System.Object,
ByVal e As System.EventArgs
) Handles Button1.Click
[code]....
well in a database is saved a binary code (this is a *.jar) i need to download this code (with a select query) and Rebuild this file
What are the setps for convert since a String to a File?
someone told me i need convert it to array byte, but i dont know how to convert a String to a array byte... what are the best steps?
this code return me a table
Public Function ConseguirCatalogo() As DataTable
Return conn.RegresarTabla("select archivo from catalogo where id= (select id from periodos where actual=1)")
End Function
[Code]....
now what are the next setp for convert it finally to a file? ( it is a *.jar)
What is a code how to convert dotted decimal to binary and vice versa. and small explanation
View 1 Replies