I am using VB Express 2008 and trying to write a program for converting and displaying numeric values (as 16 bit words) from a serial data input stream. The problem is that for all values above 127 (h7F) the chars always read as ???? (h3F). I assume there is some conflict between Ascii and unicode here.
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I'm using the following to strip special characters out of a URL:
Dim urlReg As New Regex("[^dw ]")
inurl = urlReg.Replace(inurl, "")
[code]......
In VB.net I've got the following line that removes all non-alphanumeric chars from a string:
return Regex.Replace(build, "[W]", "")
I now need to extend this to remove non-alphanumeric chars that aren't [] or _. I've changed the line to:
return Regex.Replace(build, "[W[]_]", "")
However I'm pretty sure that this says
replace non-word or [ or ] or _
how do I negate the tests for the [] and _ chars so that it says
replace non-word and not [ and not ] and not _
Some examples:
"[Foo Bar_123456]" => "[FooBar_123456]"
"[Foo Bar_123-456*]" => "[FooBar_123456]"
How to convert or make a cast of a List object typized as a container of chars like
Dim mylist As List(Of Char) = New List(Of Char)(New Char() {"1"c, "2"c})
in a simple array of chars as
Dim mychars() As Char
without make a loop for...
I'm taking VB at the college right now and we are studying Select Case Statements. What I need to do is type in a number in a text box and make it equal into a label so when i press my button the numbers I type in the text box appear in their letter forms. Here is my code so far:
lblNumber.Text = ""
Dim intA As Integer = CInt(txtBox.Text)
Select Case intA
[Code]....
I got it to work with the smaller numbers, I just don't know how I would make it so that if I type in a big number it would show all the numbers instead of just one.
For this assigment i need to show the numbers from 1 to 10 then 10 to 1 then the even numbers from 2 to 20 then the even numbers from 20 to 2 My problem is that it works fine till it gets to the even numbers. It won't exit the 2nd loop so it gets stucked in the 10-9-8-7... It all has to be in one button.
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i have this code:
For i As Integer = 0 To 9
For ii As Integer = 0 To 9
For iii As Integer = 0 To 9
[Code]...
it must find all numbers that are faculty between 0 to 999
What do I use for the format number function to show a - for negative numbers instead of ()?
View 2 RepliesI need to format a Label to show numbers in a certain way. I had asked this before about textboxes so I looked into that first but it didn't do what I wanted.
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Write a program that asks a quiz show contestant to select one of the numbers 1,2, or 3 and then calls a Sub procedure that asks the question having that number and requests the answer. The Sub procedure should then call another Sub procedure to tell the contestant if the answer is correct. Use the following questions:1. Who was the only living artist to have his work displayed in the Grand Gallery of the Louvre?2. Who said, "Computers are useless. They can only give you answers."?3. By what name is Pablo Blasio better known?This is what I have so far (with errors):
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I have a problem which is that Class Big integer Doing a miscalculation
For example: -
5 / 2 = 2.5
With Class
5 / 2 = 2
I want to do to show the numbers after the decimal point (.5)
Is it possible to use variables instead of the numbers in Label1.show() command?
For example: Label(counter).show()?
I want to know the codes to show numbers one by one continuously from 1 to 20 on clicking a button, and it should keep on doing it till a Button is clicked.I know how to get a Random number to for it but I don't know how to do for numbers in normal order .
View 11 RepliesIm trying to do a lab that will obtain 10 numbers from the user using an InputBox() function, store them internally in a one-dimensional array, and then compute the average of the numbers and sort them in reverse numerical order. The program should control that 10 numbers (no more, no less) are entered, and that the numbers are fully validated as integers.
If the user enters non-numeric data, then an appropriate error message should be shown, and that number should be allowed to be re-entered as a valid number. Then all the numbers should be shown as a list in a 'message box'. So far I can get everything but the message box to show the list of numbers entered.
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I have three Buttons labled "Single" "Double" and "Triple" and four textboxes, one for each button and one to display the results. Here is how it works. Each time I click on one of the buttons, it increments itself by that number...for example if I click on Button with the word "Triple" on it I will get the result '3' in the adjoining textbox. If I click it again the number will change to '6'. This holds true for all the buttons. I have this part of the program working well. there a way to have the addition of all these numbers appear in the fourth textbox WITHOUT having to use another button. In other words I want the fourth textbox to constantly update as I'm pushing buttons.
View 2 RepliesWhen put in ComboBox a number,and click on button Find, I want the DataGridView to show all the numbers that are smaller than the one I put in Combobox
View 5 Replieswith the code to my form on week numbers. below is what i have on my form code at the monent. and where the text in green is
View 11 RepliesBasically what I am making is a form with just one button and 2 text boxes. The purpose of it is that when I click the button 2 random PRIME numbers between 100-999 will show up in the boxes. With my code I have now, the numbers that show up in the boxes aren't always Prime.
My current Code is.......
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Randomize()
Dim p, q, i, j As Integer
[Code] .....
i am trying to add to my speech command & control application a command similar to the Windows Speech Recognition command "Show numbers", which displays a number over any clickable items on the screen, that can be triggered through voice command. I have searched over this subject a lot and didnt quite find something that could at least put me on the right track..
View 4 RepliesI tried below code:
Private Sub txtName_KeyPress(sender As Object, e As System.Windows.Forms.KeyPressEventArgs) Handles txtName.KeyPress
' allow upper and lower case A-Z, and backspace
[Code]....
But it gives:
'KeyAscii' is not declared. It may be inaccessible due to its protection level.
how to allow alphabet only ?
I am making an antivirus program and i am having a problem with my database. how can i only get the hash in this string:
693248:ff807bd383d377f7f8f91ed4aa7677ae:Trojan.Agent-178374
i only want between the two ":"s in this string. how is this possible? and also how do i get the last part on the right of the last ":"?
ok here is the situation. i have a form that is hidden. the form needs to wait until somone hits the F2 button.
View 1 Repliesi have a csv file that needs to be imported to sql server the file includes Unicode characters, so i saved it in notepad as Unicode now when i run this in sql it works excellent BULK INSERT personimps FROM 'C:MyImp.csv' WITH (FIELDTERMINATOR = ',',datafiletype='widechar')but when using the following in my code-behind in asp.net, i get gibberish where the Unicode chars should be. [code] it seems like the oledbconnection is ignoring the extended properties, or maybe i didn't set up the connection-string correctly? the ASCII chars come out OK, the Unicode fields are just gibberish.
View 1 RepliesTHis is a line of code i have, it's a code to go at the bottom of a document and the title of the question is the error it has, how do i change the 'Chars' to not be read only? I can only guess 'Chars' is a character.
pagecode(1) ="01274-6759q-DDD"
If you're not living on the edge, you're taking up too much room
let me show you my code first and then explain my problem.
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I'm data binding to a label in a grid and need to knock off the last two chars, not so easy as I thought.I know this is wrong it just shows how I'm coding:
Code:Private Sub TemplateControl_DataBinding_Label(ByVal sender As Object, ByVal e As System.EventArgs)
[code].....
How can i replace the enter key with an other set of chars
example - text.replace(" ", "this is a space")
that previous statement will replace all spaces with the string "this is a space"
how do i do this for an enter?
Well I made another thread but I know how to make textbox allowed chars but is possible with web browsers? Like if f1 - f12 is pressed then nothing happen like nothing have been touch.
View 1 RepliesWell my question is simple and straightforward. Is there any way we can use hex values like in c++?
I am going to write binary files, but for that i will have to define certain characters like this for example.
x00x00x11x22x33x00x00. I would first need to convert stuff like this to a byte array, and then write it to a binary text file.
I was wondering if it was possible, in a console application, to write characters like "℃" using .NET? When I try to write this character, the console outputs a question mark.
View 2 Replies