Find The Index Of A Char In String?

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.

View 4 Replies


ADVERTISEMENT

Replace Char At Specified Index Of String?

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]...

View 6 Replies

Find Index In List(of String)

Jun 7, 2010

I have an List(of String), i need to find the index of a particular string in that list. I have searched msdn , but i am confused over the predicate methods. I have never used predicates. This i what i have tried

vb
'on button1 click
Dim Heads As List(Of String) = Me.GetSelectedNodes()
Dim tmp As Integer

[Code].....

View 1 Replies

File I/O And Registry :: Read Char By Char From A String?

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.

View 10 Replies

Validate String To Have No Space Char And Only First And Last Char As Delimeter

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

View 2 Replies

Xml - Find The String Position (index) From A XPath Statement?

May 7, 2009

I'm looking for the actual index position in a given source string.I have the following string

"<a>
<b>zyx</b>
<b>wvu</b>

[code]....

I'm loading that string into a .NET XmlDocument object. Carriage Returns and Line Fees may be a factor here.

Dim xmlSearchText As New XmlDocument()
xmlSearchText.LoadXml(SearchTextBox.Text)
Dim selectedNode As XmlNode = xmlSearchText.SelectSingleNode(txtSearch.Text)

The following XPath Statement could be used to find the 3rd node:

a/b[.='tsr']

However, I need it to return a string index of 23 rather than the ordinal position of 3.

View 2 Replies

How To Use TSQL Char Index

Feb 3, 2009

i ised char index of TSQL in vb.net This is my sample script..

strCreditCardName = case when substring(insertedset.EncryptedAccountData, 0, 13) <> 'AccountName=' THEN '' ELSE substring(REPLACE(substring(insertedSet.EncryptedAccountData, charindex('AccountName=', insertedSet.EncryptedAccountData) + 12, charindex('&AccountNumber=', insertedSet.EncryptedAccountData) - 13), '+', ' '), 0, 50) END

View 1 Replies

Sql - Unable To Find Specified Column In Result Set Index Out Of Bounds Index Out Of Range Exception

Apr 23, 2012

i am having trouble putting a value in a textbox. Each time a ticket is sold i put the total price in a textbox, each time a ticket is sold for the same concert it increases by adding its self to the total price. It works at the first sale, but after that it breaks down. here is the code

Private Function DisplayMoneyTaken() As Integer
Dim totalMoney As Integer
'open the database connection

[Code].....

View 1 Replies

Too Many Arguments To 'Public ReadOnly Default Property Chars(index As Integer) As Char'?

Nov 16, 2009

i get this error?

' Create the order and store the order ID
Line 175: Dim orderId As String = ShoppingCartAccess.CreateCommerceLibOrder(shippingId, taxId)

[code].....

View 2 Replies

Find And Replace Unicode Default Char

Jul 22, 2011

I used a StreamReader and StreamWriter with UTF-8 encoding to find and replace chars in files. Some of the chars were replaced with the Unicode default char of � OR �. I found that for this I should have used encoding 1252 so I'm set for future changes but how do I fix the files that have been cluttered with the default char? Is there a way to do this with StreamReader?

View 4 Replies

Copy The Value From String To Char Array Using String.CopyTo() Method?

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

View 2 Replies

.net String To Char In C?

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.

View 7 Replies

VS 2005 Make Live Search Form Like When User Enter 1 Char Then It Ll Find All Data Start With Or Contain Letter?

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?

View 4 Replies

Why Is String Returning A Char

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.

View 2 Replies

Asp.net - Remove Last Two String Char?

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?

View 10 Replies

Convert String To Char?

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.

View 1 Replies

Cut The 1st 3 Char In A String With Vb 2008?

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.

View 3 Replies

How To Convert String To Char

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]...

View 1 Replies

Move First Char In String To The End?

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]....

View 3 Replies

Remove Char From String?

Oct 29, 2008

what is the best way to remove FileFinder1 from this string:

"C:Program FilesFileFinder1"

View 1 Replies

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!

View 15 Replies

Import And Call Unmanaged C Dll With Ansi String "char *" Pointer String From .net?

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).

View 2 Replies

Converting A String To A Char Array?

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?

View 3 Replies

Function To Test First Char Of String?

Jan 15, 2012

Function to test first char of string

View 9 Replies

How To Check If Theres A Specific Char Within A String

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)

View 5 Replies

Replace A Char From String At Specified Position?

Apr 29, 2011

Hello all, im now trying to create a way to replace the last char of a string with "4"[code]....

View 7 Replies

Splitting String With Array Of Char

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.

View 5 Replies

String / Char Arrays And Whitespace

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.

View 19 Replies

String Char Strange Appearance In XML

Feb 17, 2011

Why when I wrote in a xml the char "&" it appears &amp; ??

View 3 Replies

VS 2010 Way To Insert Char Into String?

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].....

View 5 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved