Specify A Number Or Letter With Their Ascii Value?
Aug 19, 2011
How do I use key_down event in my vb.net?It is so sucking I have seen so many codes on google but none of them working I dont understand where its going wrong
[Code]...
2) can anyone post a sample of these "a textbox that allows only numbers from user using key_down"
3) I see people using e.keychar but in my vb.net(2008) I dont have that keyword I guess e.keycode must be used is that right? or e.keyvalue?
4) I see e.keycode = keys.A but I need to accept 'a' not "A" How do I specify a number or letter with their ascii value ?
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Feb 28, 2012
I realize this might be a redundant post, but I can't seem to find (through all the searches) the code to do what I need to do...or it's just not working for me.
I have an Intel hex file (containing ASCII characters) such as :041400000262F5226D
I need to convert the values to hex numbers into memory (an array), such as
[code...]
I'm not sure of the proper combination of conversions I need to get this accomplished. I've tried several combinations of Val/Asc/ etc. but can't get it correct.
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Sep 19, 2010
I've tried searching for this, but most people just want to convert hex values into their ASCII equivalents. That's not what I am looking to do.I'm looking to see if VB.NET has a simple built-in function to do this:
Private Function NibbleToString(ByVal Nibble As Byte) As String
Dim retval As String = String.Empty
Select Case Nibble[code]....
Is there a more elegant way to accomplish the same thing as that code?
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Jun 17, 2009
I'm using this code to return some string from a tcpclient but when the string comes back it has a leading " character in it. I'm trying to remove it but the Len() function is reading the number of bytes instead of the string itself. How can I alter this to give me the length of the string as I would normally use it and not of the array underlying the string itself?
Dim bytes(tcpClient.ReceiveBufferSize) As Byte
networkStream.Read(bytes, 0, CInt(tcpClient.ReceiveBufferSize))
' Output the data received from the host to the console.'
[code]....
Len() reports the number of bytes not the number of characters in the string.
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Jun 6, 2009
Would it be possible to convert strings to ASCII and subtract a number from each at the source, then add a number at the receiving end? I am sending messages on a LAN network (hopefully) and I know the packets may be monitored so I want to make sure they at least can't be read just by opening the data, something simple will do.
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Dec 17, 2009
Public col, nmb, x, y, z As Variant
Public hw(17) As Variant
Public buses(17, 200), sht, dt, nme, per, rnk As String
[code]....
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Nov 28, 2010
Ok I am a newbie and I need to concatenate a number and an integer. Can somebody give me a idea on how to accomplish the following/I need to take the number (which is an integer from a simple math function) and the letter A and create something like "A10" or "A45" or "A123". Can someone please give me a tip on how to accomplish this?The program creates the integer by using the value of a drop down box and a reference number of 9. The maximum value will be 109 and the minimum is 10. It needs to be combined with the letter A, which does not change.
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Feb 6, 2012
I have a string "abc defg h"I wanted to translate each letter into the corresponding number for example 'A' as '00', 'B' as '01'eg'hello' --> '06 04 10 10 14'ps would a dictionary at all with this?
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Oct 21, 2009
I've been looking at this for a while and I'm stumped. I'm under the impression that if I use strOpass = strOpass.Replace(":d", "Z") that I should be seeing any numbers that a user inputs the code line there will return a Z. It's not working and I don't understandI've also tried "[0 - 9]" and :z, but the program is still returning the original input.B is not giving me a hard time over that line ( no errors or warnings. ) The other statements work just fine and return a X just like they should. Here is the entire block of code:
Private Sub btnDisplay_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnDisplay.Click
Dim strOpass As String
[code]......
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Jul 19, 2011
In VB.NET, using Interop.Excel, I need to access a cell based on a row number and column letter. I tried my luck with...
pages.title = DirectCast(wksht.Cells(rows, "D"), Excel.Range).Value
Since the parameters took type object, I figured maybe this would work, but got no luck. I also thought of enumerating each letter to a number, but the columns in the spreadsheet aren't as normal. Meaning, they're not
A B C D E F G
They're actually...
A B C D E T AZ
I don't know if this makes a difference in the numbering of the columns. The question should be obvious, but just to reiterate, how can I get a cell based on a row number and column letter?
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Jul 31, 2010
How to make validation Only Allow letters and Numbers to Input, without any special character in Textbox
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Mar 16, 2010
input = "my mother is a great lady" output = A -3, B - 0, C - 0, D - 1, E - 2
I wanted to count the number of times letter A - E is in the input string.
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Feb 21, 2011
Is it possible to write an SQL statement for MySQL which finds all rows which match a specific arrangement of letters/numbers without using REGEXP? i.e. SELECT myCol FROM myTable WHERE myCol='{number}{number}{letter}'Should return 12X and 34Y but not 123X or 34YY..SQL match on letter and number arrangement). The difference is that I have discovered that I cannot use regular expressions with the ADO.Net driver I am using. Whatsmore, I cannot update it since I am using Visual Studio 2003 which is not compatible with later versions.]
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Oct 26, 2010
I have a customer form and want the customer to enter a passport number into the textbox and want to limit them to enter only 7 numbers and a letter.
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Apr 16, 2011
I want to ask about the VB. NET Array
I want to create an array and Textbox & Button Array consisting of one thousand number and Letter( one thousand )
From 0 - 9
and
From A - Z
When i press on Button, I want to see one thousand random number Every time the numbers must changed! Except the location 400 and 410 for example i want to see in the location 400 " 7 " for example and in the location 410 "Y" for example
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Dec 2, 2007
I'm learning to Program in school and i use vb.net 2003. Im trying to create a letter count application that displays the number of times a specific letter occurs in a word o phrase. (uppercase lowercase letters should not be counted) I started out by doing the folllowing:
[Code]...
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Dec 11, 2010
I am using Microsoft.VisualBasic.Fileio.TextFieldParser to parse a CSV file that was created with Excel 2003. The parser is working great with the exception that it is converting extended ascii values to question marks! So if the file content was:
± 3
The TextFieldParser is returning
? 3
I have tried all of the encodings in the System.Text.Encoding package with no luck. I thought I had it with UTF7 but it was dropping other characters like replacing the + sign with a space.
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May 9, 2011
I'm working on decoding a NMEA sentence that is a compressed 8-bit string. I'm having a very hard time of wrapping my head around the bit manipulation needed to convert this string. If someone could get me started with this it would be great.
Here is the incomming string:
!AIVDM,1,1,,A,14eG;o@034o8sd<L9i:a;WF>062D,0*7D
and here is the expected output:
[code]...
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Sep 7, 2008
I have a binary converter I am attempting to build and want to read and convert the InputTextBox(alphabetical characters) letter by letter however all I have so far is one letter at a time
Image here is the code I have so far:
Code:
Public Class ConverterForm
Private Sub OpenToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OpenToolStripMenuItem.Click
[Code]....
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Jun 28, 2010
I am a vb newbie having some trouble with an assignment. A user enters a letter into a text box, and the output must make the letter uppercase and tell what position the letter is at in the sentence "The quick brown fox jumps over a lazy dog."
Here is my
Private Sub btnSubmit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSubmit.Click
[CODE]...............
This is what comes out: "A first occurs in position -1". Everything comes out except the position is always displayed as -1.
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Jul 5, 2011
Is it possible to change to colour of letters as they are typed.I.e
Piece of text says
"Hello World"
when user types "H". The "H" in the original would change if matched and then so on and then when "Hello" is matched it would change to another colour.
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Aug 5, 2009
I'm using a timer control to highlight text letter by letter one every second. Timer1.Interval = 1000 How can I give the user access to this variable so the speed can be changed?
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Nov 4, 2009
I would like to pass a whitespace character by using the System.Text.Encoding.ASCII.GetBytes(" "), and System.Text.Encoding.Unicode.GetBytes(" ") , where " " is the whitespace Character required. What do I need to type (" ") to get a whitespace character passed.?
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Aug 7, 2009
So I have an ASP.Net (vb.net) application. It has a textbox and the user is pasting text from Microsoft Word into it. So things like the long dash (charcode 150) are coming through as input. Other examples would be the smart quotes or accented characters. In my app I'm encoding them in xml and passing that to the database as an xml parameter to a sql stored procedure. It gets inserted in the database just as the user entered it.
The problem is the app that reads this data doesn't like these characters. So I need to translate them into the lower ascii (7bit I think) character set. How do I do that? How do I determine what encoding they are in so I can do something like the following. And would just requesting the ASCII equivalent translate them intelligently or do I have to write some code for that?
Also maybe it might be easier to solve this problem in the web page to begin with. When you copy the selection of characters from Word it puts several formats in the clipboard. The straight text one is the one I want. Is there a way to have the html textbox get that text when the user pastes into it? Do I have to set the encoding of the web page somehow?
[Code]...
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Nov 4, 2011
I'm a VB beginner.I wonder if it's possible to change the text style letter by letter?I've learned here that you can change the entire style of text like
Dim myStyle As New Font(TextBox1.Font.Name, TextBox1.Font.Size, FontStyle.Regular)
TextBox1.Font = myStyle
[code].....
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Jun 16, 2009
I have a program that allows the user to enter a drive letter into a text box. The program then takes the letter and find the physical drive number (i.e. deviceharddisk3..). It then stripes out everything and leaves me with the number 3.
In VB6 I used mDrive.bas from vbAccelerator.com and it worked perfectly. I have been all over the internet and back and cannot find a solution written in VB.NET.
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Jun 17, 2009
I am trying to get the physical drive (device) number from the drive letter. If the user inputs the drive letter C the program will find the associated physical device number. For example if I input C then the result needs to be \Device\HardDrive1\... Some call it NT Device Name; I think. I have the code for VB6 from vbAccelerator, which works perfectly, but it does not work in VB.NET. My question is there a simple way of pulling the drive info that contains the drive letter and the physical device number. I have searched the internet and found nothing for VB.NET. I would post code but I have nothing for .NET.
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Jun 16, 2009
I have a program I am converting from VB6 to VB.NET and I am stuck at the very last piece of code. I need to determine what physical device number is associated with the drive letter.
The program takes the drive letter from a text box and goes and finds the device number (i.e. deviceharddrive3...) and strips out everything leaving me with the devicer number; in this case the number 3. I have searched the internet to and fro and found nothing in VB.NET.
My program in VB6 uses a .bas module from vbaccelerator.com called mDrive.bas and works great. I can't figure out how to convert it over to VB.NET.
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Oct 19, 2010
Basically, there are letters in welsh which act as one character e.g. "ch", "ng" and "ll". As you can see by the code, i am trying to do this with "ll" right now.
Dim s As String = Label5.Text 'easy enough to see what i did there.
Dim i As Integer = s.Length 'easy enough to see what i did there.
For i2 = 0 To i - 1 'declare the loop
[CODE]...
The problem is that the letter "l" gets read out, instead of the letter "ll". So theres my problem, what i need to do may seem simple to some, but i can't see how something like this would work.
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Mar 4, 2011
I am doing a bar cash register and I want to use a if statement to see if fosters button and number 1 on the number pad are both pressed then multiply constant by quantity number
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