Check If A String Contains Only Numbers?
May 26, 2011
Dim number As String = "07747(a)" If number.... Then endif I want to be able to check inside the string to see if it only has number, if it does only contain numbers then run whatever is inside the if statment? What check do i use to check if the string only contains numeric and no alpha ot () etc ..? What i am trying to check for is mobile numbers, so 077 234 211 should be accepted, but other alphas should not be
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Oct 8, 2009
I have a textbox, with the following items anim,welcome,30anim,items,20 I am using rhe following code to read each line in the textbox Dim MySplit() As StringDim MyLine() As StringMyLine = Split(tags.Text, vbCrLf)' Split the Contents of the tags TextBox at the Line SeparatorsFor Each mLine As String In MyLineMySplit = mLine.Split(","c)anim_time = MySplit(2)Next The code works fine forward, it sets the variable anim_time to its correct value. What I want to do is to make it check for similar numbers one item backwards. For example: anim,welcome,20anim,items,20 Here the two anim_time as equal. I want to warn the user that this is happening.
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Feb 8, 2009
I have a question about working with arrays
I don't have any code written out I just want to know the best way to do this sort of senario to put into a flowchart, the program i'm working on isn't homework, its just practice and the book I have is less than helpful with what i'm working on.
I want to check to see if at least 3 numbers in the array are the same but no less so that it meets a certain requirement how would I check this?
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Jul 9, 2009
I have a working piece of code that checks that 4 out of 5 random numbers are in sequence. The numbers correspond to 5 dice rolls. I'm trying to learn VB and I think the code can be improved since it's so cumbersome. The sub checks to see if any of the numbers are duplicated and reassigns one of the duplicates to an arbitrary "11" which is outside of the 1-6 range of a single dice roll. Then the values are inserted in an array and sorted and the sequence check takes place. score of 30 is assigned if 4 of 5 of the (sorted) numbers are in order. If not in order, a score of 0 is set.
Code follows:
Private Sub OtherScores4()
'Check if any of the rolls are duplicated and reset one of the die to arbitrary "11".
If Dice1 = Dice2 Then
Dice1 = 11
End If
If Dice1 = Dice3 Then
Dice1 = 11
[Code] .....
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Jun 12, 2011
The string itself contains things like "random" & random.next(1,3) & "random2" etc. The string registers all of this as a string and doesn't actually calculate random numbers.Is there any way to fix this?
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Sep 14, 2010
I have a list of strings in my richtextbox. I need a code to check if there are numbers in the first line, if there is then proceed with the rest of my code, else delete first line.
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Nov 5, 2010
i want a user to entera number and then check if the number entered fall between the minmum number specified and the and maximum number specified inclusive.i have this code but itis not working for me as i want.that is if the entered number is not within the min. and max. inclusive then it should promt the user.
if number>=minnuber and number <=maxinumber then
exit sub
else
messagebod.show("number is out of range.number must be between the minimum and the maximum number")
end if
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Sep 19, 2010
I need some kind of code to check if the first line in a richtextbox contains numbers or not.
Something like this:
If Richtextbot1.Lines(0) contains Numbers Then
Goto startbot
Else
[Code].....
If the first line contains 4 or more numbers, it will use it. After each loop it will delete line 1. So it repeats for the next line. When my code reaches the 3rd line, and it doesnt find 4 or more numbers it needs to delete the line.
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Jan 12, 2012
i am probably overthinking this but how can i check the textbox for either a 655 or 699 in the first 3 numbers in the textbox? The current code i how now works but displays an error if (im guessing) it doesnt find the other number in the textbox as well:
[Code]...
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Sep 14, 2010
Im currently using this:
[code]...
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Jan 6, 2010
I need to do a check on telephone numbers entered into a textbox.I know the regular expression for an email address but not to check a telephone number like such (000)000-0000
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Dec 4, 2010
I have two user inputs (as textboxes) for two numbers I'm looking to check for all the prime numbers with the range of those two numbers and display them within a multiline textbox, however my code returns nothing but zeros, and I have seen easier ways to do it without functions but I am curious as to how to go about calculating primes within the function.[code]...
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Apr 10, 2009
I'm having a problem converting a string of letters to a string of numbers. I've tried:
Dim A As String = ""
Dim strOutput As String = ""
Dim X As Integer = 0
[Code].....
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May 3, 2012
I need to use regex to check if the user add the numbers of phone in this 'Formula'
0911111111,0922222222,0933333333
must the number start with '09'
must the number contains '10' characters'
must the numbers seperated by Comaa ','
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Feb 3, 2011
I Am working on a sequence checker that will check a list of numbers to make sure they are sequencial? however we now have a new job for a 5 in 1 layout so the serial number i split up over 5 collums and mixed with other data. i can import the data into a data table split by ","'s ?
[Code]....
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Jun 22, 2010
I got an app, which receives data via a R232 port, convert it to a string and on the other side I got a database, where the strings are saved. How can I find a way to compare the string with all strings in one database column and get back the another stringform the same row in this database. I never programmed a database
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Mar 15, 2009
We know that VB string start and end with double quotes " "
So we have to use "" if we want " in VB string.
I wonder if there is a regular expression pattern which will match VB string?.
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Sep 29, 2009
I know you can just use integer.parse to convert a string to a integer, but I need something else.I have a String like this:
001010000000101
Now what I need to do is place al those digits in a array like this:
Dim example() As Integer = {0,0,1,0,1,0,0,0,0,0,0,0,1,0,1}
What I am doing now is this:
Dim text As String = "001010000000101"
Dim collection(15) As Integer = Nothing
For i = 0 To text.Length - 1
[code]....
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Nov 17, 2011
i do have a medium knowledge of Python, HTML/CSS. I am working on my first basic program. a simple calculator. Buttons representing numbers 0-9 Buttons with + - x / = and a clear button.
So what ive done is created a string, and when the user hits the button, it adds that value to the string (hit buton 4, it adds a 4, hit the minus, it adds a -)
i need a "function" that grabs that string, uses logical math on it, to determine the answer. I know in Python you can use: Eval(STRING NAME)is there an equivelant for VB?
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Aug 25, 2010
I need a vb function to determine the last numerical characters in a string. For example, if the string is Step1, I need it to return 1. If the string is Step32, I need it to return 32.I'm aware of the string functions like Right, Instr, etc but I'm just not sure how to get what I need
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May 9, 2009
I included all the code this time. In calculate click event the value is zero and I don.t understand where I went wrong. My work is due tomorrow, if anyone can tell me why I can not extract the price from the string. What this program is doing is taking items from the stockListBox and adding them to the shoppingList Box then extracting the price from the shoppingListBox and adding the prices together.
0
Public Class SupplyCalculator
Dim lists As String = "staple" & "stapler" & "folder" & "notebook" & "pencil" & "eraser" & "pen" & _
[Code].....
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May 9, 2009
This is my second post on this topic. I included all the code this time. In calculate click event the value is zero and I don't understand where I went wrong. My work is due tomorrow, if anyone can tell me why I can not extract the price from the string. What this program is doing is taking items from the stockListBox and adding them to the shoppingList Box then extracting the price from the shoppingListBox and adding the prices together.t a note- in public class I changed the string and seperated the price from the item, not sure if I was suppose to do that.lso, everything works except the calculate event.
0
Public Class SupplyCalculator
Dim lists As String = "staple" & "stapler" & "folder" & "notebook" & "pencil" & "eraser" &
[code].....
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Jan 28, 2011
Can I have a List containing one string and two numbers? Or I can only have one type of element?
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Nov 29, 2009
How can you remove number from a sting. The numbers could be anywhere in the sting and they could be any combination of numbers but would be together in the string. Ie abcdefg321hijk....
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Apr 2, 2010
Okay, so I know now how to replace vowels in a string. Is there any way I can use the Select Case similar to the code below to replace all numbers into letter Z.
[Code]...
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May 8, 2009
i want to reverse some string with numbers how to reverse it
ex: "ABC 123" --> "123 CBA"
or
"ABC 123 DE" --> "DE 123 CBA"
reverse string without the numbers
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Aug 27, 2009
I'm working in a program that reads sms from phone I have messages like "You have successfully transferred 100.00 EGP to 20119845844Balance 7555.00Transaction: 4620439" Stord in a string So I need to search the message for the numbers 100.00 , 20119845844 , 7555.0 and 4620439 and it's sure changed every message so the how to search for this Numbers and add every one in variable to use every number of them alone?
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Jun 12, 2010
I currently have a string like MondayJohnsRoom1130D I want to split this up so I have Monday - Day of the week JohnsRoom - Room name 1130 - Time D - Means Daily I get given this format from another computer, the room name can vary in size but the last leter D will always be one letter and the time 4 characters.... HOw can I split this up?
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Feb 16, 2010
I am trying to parse the digits to store in a variable from a string in VB.NET (would like to also include the decimal point).
Here is an example string: Refund issued for $27.74
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Dec 1, 2010
I need to give comma(,) for every thousends. So I used DataFormatString="${0:#,#}". It is working fine. But when value is 0. It is showing $00. I just want to show only $0.
How can we do that?
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