Using Char - First Letter Of String Must Be Certain
Apr 18, 2010
Basically the first letter of a string must be a certain letter. At the moment the only way I know how to do it is as follows:
If sConsignmentNo(0) = "J" Or sConsignmentNo(0) = "C" Or sConsignmentNo(0) = "U" Or sConsignmentNo(0) = "N" Or sConsignmentNo(0) = "H" Or sConsignmentNo(0) = "S" Or sConsignmentNo(0) = "V" Then
Basically listening the same thing out over and over. Is there a way I can say, If sConsignmentNo(0) = ListOfValidEntries i.e J,C,U,N etc?
Using Visual Basic 2008 and cant use regex!
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Dec 16, 2008
i want to read a character 1 by 1 from a string and a .txt, i know all about stream reader so for the .txt would it be somthing like:textbox1.text = tr.readCharacter.i would prefer to be able to read from a textbox or String array though.
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Mar 30, 2012
I need validation for string to comply with next: no space char starts with one delimiter char ends with one delimiter char has no other char as delimiter char. Updated sorry missed that should only be one delimiter char at start and at the end
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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 19, 2009
I want to make live search form like when user enter 1 char then it ll find all data start with or contain letter.i have use the sql like query with textbox textchanged event but it is too slow any other method to make it fast?
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Jul 13, 2010
I am trying to the copy the value from string to char array using String.CopyTo() method.
Here's my code
Dim strString As String = "Hello World!"
Dim strCopy(12) As Char
strString.CopyTo(0, strCopy, 0, 12)
[code]....
Edit : I get the this error at runtime.ArgumentOutOfRangeException Index and count must refer to a location within the string. Parameter name: sourceIndex
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Dec 20, 2010
string function(s) to change only first letter of string to Upper Case?
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Aug 19, 2009
I want to take a string from a text box and split each letter of the string into an array. Then, I want to take the first item in the array(the first letter of the string)and capitalize it. Once I've done all that, I want to combine the array and convert it back to the original string it was, except I want the first letter to be capitalized(I've already placed this into a variable.)
Here's what I've come up with so far:
[Code].....
how to combine the array back to a string except I replace the first letter of the original string with the "firstLetter" variable I created.
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Jul 14, 2011
I have a DLL that I am importing:Declare Function QueryInfo Lib "mydllname" (ByVal DevName As String, ByVal pcQueryParam As String, ByVal Result As String, ByVal Length As Int32) As Int32
[Code]...
Anyone have an idea what the issue could be? If I run similar code in VB6 (only diff is mtStatus = String(mtValueSize, Chr$(0)) ) it returns what I expect.
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Sep 16, 2011
i am making a l337 speak generator..Lets say I input bob12321 (although i can input anything)I would like to make the program replace the "b" with either [code]How would i do that... I tried string.replace - but it says character A cannot be turned into long (on a seperate word)[code]
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Jun 27, 2012
I have built a DataTable from my database. Then I am looping through the rows and trying to access a string, however the value is being returned as each character in the string.
For Each theseRows In DisplayForm.MainTab.Rows
If theseRows.Item("Last_Name") = userLast And theseRows.Item("First_Name") = userFirst Then
[Code]....
The Trap_Code values are two or three letter strings, the returned value is each letter once at a time. The loop seems to cycle through the individual characters of the string as an array rather than display the entire value, which is what I was hoping for.
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Aug 24, 2009
The following code:
If checkboxList.Items(i).Selected Then
.Fields("DESC1").Value += checkboxList.Items(i).Text + ", "
End If
should produce output such as "A, B, C,(space)", which will then be bound to a dynamically created GridView. I would like to remove the last two-char string, that is ",(space)". How can I do this?
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Jun 5, 2011
I am writing a database and need to post a value in a lable to a sql field.the sql datatype is set to money.when posting i have
CMD.Parameters.addwithValue("@Claim", LBCLAIM.text)
when posting i gett an error
cannot convert a char vaule to money. the char vaule has incorrect syntax.
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Apr 29, 2009
how can I cut the 1st 3 char in a string in vb 2008?
For example:
Dim i As String = "ABCDEF";
I want to only cut the 1st 3 char and the system will only display "ABC" after the 'cut' action done.
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May 27, 2012
I want to convert say Input: textbox1.text=blabla Output: blabla becomes into: textbox2.text=(char45 & char34 char45 & char34 char45 & char64 )
[code]...
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Apr 28, 2011
Im wanting to create a function that receives a string and moves the first letter to the end and returns it.
Public Function moveLetters(ByRef word As String) As String
Dim length As Integer = word.Length
Dim chars(length) As Char
[code]....
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Oct 29, 2008
what is the best way to remove FileFinder1 from this string:
"C:Program FilesFileFinder1"
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Mar 11, 2010
I have written my own function, which in C would be declared like this, using standard Win32 calling conventions:int Thing( char * command, char * buffer, int * BufSize);I have the following amount of VB figured out, which should import the dll and call this function, wrapping it up to make it easy to call Thing("CommandHere",GetDataBackHere).UPDATE:This code is now a working solution, as shown here:
Imports Microsoft.VisualBasic
Imports System.Runtime.InteropServices
Imports System
Imports System.Text
[Code]...
Updates: I got the code to build by following the help received here, and then I had forgot the As Return Type (which got me a MarshalDirectiveException PInvokeRestriction). Then I had an assertion failure inside my DLL, which lead to an SEHException. Once fixed, this works BEAUTIFULLY. There are newsgroups where people are saying this can not be done, that VB only loads managed dll assemblies (which I guess is the normal thing most VB users are used to).
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Mar 23, 2012
I have a string like this.
Dim str As String = "code"
I need to break this string down to an array of characters like this,
{"c", "o", "d", "e"}
How can I do this?
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Aug 20, 2011
I have a string that goes like "abcdefg..."
I would like to find the index where the letter d is at, so I can get the number 3.
I managed to do it by looping through each letter in the string, but that doesn't sound very convenient.
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Jan 15, 2012
Function to test first char of string
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Nov 10, 2008
my question is how can i check a string for a specific char (for example, in the string:"242.421" theres the char "." how can i make a rule so that char can only be typed once... (in a textbox) so when a user click the "." button on their keyboard it won't allow it again (more than once)
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Apr 29, 2011
Hello all, im now trying to create a way to replace the last char of a string with "4"[code]....
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Dec 1, 2009
I want to replace a char at a specified index of a string.
Short of using the .Remove and .Insert methods I was wondering if there is an easier way.[code]...
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Jun 14, 2011
I want to split a string with this array of char
Dim sepa As String = " '"",.;:(){}[]·#|-_<>+¿?=/&%$‚¬@!¡"
The question is how do I include in this string vbcrlf? So I can do the fallowing:
dim palabras as String() = RichTextBox1.Text.ToString().Split(sepa)
I tried:
Dim sepa As String = " '"",.;:(){}[]·#|-_<>+¿?=/&%$‚¬@!¡\r\n"
But it does not work.
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Feb 6, 2012
I am developping an app which talks across a network and will eventually be used to read in a text file (on the client) and transfer it to the server. Currently, the server and client succesfully connect to each other using the Tcplistener/Tcpclient classes. I am now trying to send some data across the network using the networkstream class, which I have implemented.Currently for testing purposes i am sending a char array which contains the characters "hello" which succesfully sends and outputs to console on the server. Although, "hello" is followed by a long list of whitespaces. I have tried converting this to a string array on the server and/or client and using the string.Trim() function (amongst trying many other things over the past couple of hours) although the output remains the same.
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Feb 17, 2011
Why when I wrote in a xml the char "&" it appears & ??
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Feb 24, 2011
I have string that is equal to 112233. I need to insert "-" after every second char in string so i wrote the
Dim str1 As String = "112233"
Dim str2 As String = ""
Dim i As Integer
[code].....
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Sep 29, 2010
I have a string: string = abcdefghijklmnopqrstuvwxyz and what i want to do is, i want to set letter to the 5th letter in string.
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Mar 30, 2012
Count specific character occurances in string
I have a delimeter in string that i have to validate. How can I count occurrences of that char. For now i have a next function.
Private Shared Function CountChars(ByVal value As String) As Integer
Dim count = 0
For Each c As Char In value
[Code].....
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