How To Reverse Strings Using Asc() Function
Sep 29, 2009Can somebody give me hint how to use function Asc() in vb to reverse strings?
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Reverse A String Of Words Without Using The Reverse Function?
Apr 5, 2010I need to reverse a string of words without using the reverse function. This is what I have so far, BUT it only shows the last two letters. For example: if i type "John" it will only give me "ho"
Public Class frmReverse
Dim original As String
Dim New1 As String
[code]....
I need to this without using things we haven't seen in class.
Use Loop And MID Function To Reverse A Name?
Feb 21, 2012I am fairly new to VB and I am struggling with not using the Reverse string.I need to take a persons name from a text box and print the name backwards in a label using lop and the MID function.I have this, but it doesn't use the MID Function, how would I change it.
Private Sub convertButton_Click(sender As System.Object, e As System.EventArgs) Handles convertButton.Click, ClearToolStripMenuItem.Click
Dim Name As String = ""
[code].....
Function To Reverse Letters (StrReverse) But Order Of Words?
Jun 22, 2010In Visual Basic 2008 Express edition: Create a new string replacing the order of the words, from last one to the first one and show it in a text box..Example: Input: This is an example Output:example an is This¯..I know theres a function to reverse the letters (StrReverse), but the order of the words?
View 3 RepliesVB Can't Get The Right Function To Work With Strings
Jun 20, 2012Basically, I'm trying to do some string manipulation to edit directories. I found some code to try and edit the directories, but when I use it it doesn't recognise 'right' as being a function and only recognises it as a right property, thus producing an error.
I was wondering if there's something I haven't imported or if perhaps 'right' is an obsolete function that was used in VB6 but replaced with something. The code I have is as follows:
[Code]...
Use A Function To Return A List Of Strings?
Oct 5, 2011Update: I didn't make it clear but I meant this to be a question about where/how I would use a function to return a list of strings when I'm trying to just work with classes.I have a class called Account.
I have data access class called AccountDAO.I have various functions that return lists of objects like GetAllAccounts, GetAccountByID etc.I want to populate a drop down list with just the account names and nothing else. It's proving rather slow when using lists of objects and databinding them to the dropdownlist.
I feel like I should be using a simple "Select Account_Name From blah" type statement and returning a list of strings but I don't know how to work this into my class and data access class.
Way To Concatenate List Of Strings Into A Comma-separated Strings, Where Strings Are Members Of An Object?
Oct 16, 2009Say I have a List(Of Tag) with Tag being an object. One member of Tag, Tag.Description, is a string, and I want to make a comma-separated concatenation of the Description members.Is there an easier way to do this than to read the Description members into a List(Of String) and then use the Join function?
View 2 RepliesImproving Function - Using Stringbuilder To Replace My Strings?
Jun 21, 2009vb.net
'strSearch = textBox.Text, columns 2 to 10 are the optional columns you want to search to. Function WhereQuery(ByVal strSearch As String, ByVal column1 As String, Optional ByVal column2 As String = "", Optional ByVal column3 As String = "", Optional ByVal column4 As String = "", Optional ByVal column5 As String = "", Optional ByVal column6 As String = "", Optional ByVal column7 As String = "",[code]..
sample output:
im also thinking on using stringbuilder to replace my strings.
Convert Strings Returned From A Function To Numbers
Jul 27, 2010I have the code below. The code returns a string in (IntersectingPoints) for X and Y. I need X and Y values to be in single and stored in an array to deal with later.[code]...
View 11 RepliesInstr Function Handle Multiple Strings To Find?
Aug 1, 2010I'm using this for a single value to search for.
intPositionOfApartment = InStr(StrConv(pStringToParse, vbUpperCase), "APT") Is it possible to search for more then one value such as "APT", "UNIT" ?
If yes please show me an example of how it should be coded.
Is Write A Function Procedure That Takes An Array Of Strings
May 9, 2010I'm a beginner and doing a review for my final...the question is-Write a Function procedure that takes an array of Strings, sorts it using Shell sort and returns the sorted array. I do not get shell sort at all.
View 3 RepliesUtf 8 - Function That Will Tell Us Whether 2 Strings Are Equivalent Under UTF8 Unicode Collation?
May 23, 2012This question is similar to How to emulate MySQLs utf8_general_ci collation in PHP string comparisons but I want the function for vb.net rather than PhP.Recently I make a lot of supposedly unique key.Some of the keys are equivalent under UTF8 unicode collation.For example, look at these 2 key:
byers-street-bistro_38.15-79.07
byers-street-bistroā€ˇ_38.15-79.07
If I paste that into front page, and look at the source code you'll see
byers-street-bistro__38.15_-79.07
byers-street-bistroā€ˇ__38.15_-79.07
Note: In stack overflow they still look different.I know it's not the same. I guess even in stack exchange it doesn't show. Say I have 1 million such records and I want to test whether 2 string WILL be declared the same by MySQL UTF8 collation. I want to know that before uploading. How do I do that.So vb.net think that those are different keys. When we created mysql query and upload that to database, the database complain it's the same key. Just one complain and the upload of 1 million databases will be stuck.We don't even know what the hell is ā€ˇ? Where can we look that up anyway?Anyway, I want a function that when given 2 strings will tell me whether they will count as the same or not.If possible we want a function that convert strings into their most "standard" form.For example, ā€ˇ seems to encode nothing and the function would recoqnize all those nothing character and eliminate that.Is there such thing?So far this is what I do. I need something more comprehensive.
[code]...
.net - Value Of 'String' Cannot Be Converted To Type 'T Generic Function For Getting Query Strings?
Jul 21, 2011I've got this function:
Public Shared Function GetQueryStringValue(Of T As Structure)(ByVal queryStringVariable As String) As T
Dim queryStringObject As Nullable(Of T) = Nothing
If queryStringVariable <> Nothing Then
If HttpContext.Current.Request.QueryString(queryStringVariable) IsNot Nothing Then
queryStringObject = DirectCast(HttpContext.Current.Request.QueryString(queryStringVariable), T)
End If
[Code]...
C# - Returning List Of Null-terminated Strings From External Function Into .NET
Mar 29, 2012I am trying to call an external C++ function using VB.NET (answers in C# are fine, I can convert back) which returns a list of device names. This comes in the form of a pointer to a null-terminated array of null-terminated char arrays (correct me if I've misunderstood what I'm dealing with) with a function signature:
long GetNames(char*** names)
Most of the answers to similar questions I've found have involved something more like:
long GetNames(char** names, int length)
It appears from what I've read that I need to give it an IntPtr but I'm uncertain as to how this should be initialized, and in my case I don't know the length of the array. At the moment, in the VB module, I have:
<DllImport("MyExternal.dll", CallingConvention:=CallingConvention.Cdecl)> _
Function GetNames(ByRef names as IntPtr) As UInteger
End Function
I've tried calling the function by passing an IntPtr initialized as IntPtr.Zero or using Marshall.AllocHGlobal, but I always get an AccessViolationException.
Any ideas on how I should be calling this function and how I get the return value into a managed string array would be greatly appreciated.
EDIT: I've found a sample function call in native C as follows:
char **tmplist;
GetNames(&tmplist)
Reverse Sorting An Array - Array.Reverse (strTheString)?
Dec 16, 2010I have the array dimensioned as public to the form. I populate the array on Form1_Load.When I click the button btnReversingAnArray the first time all are sorted in reverse except for Wendy and it is the last item shown. ie..(The book I am even shows an image of the list Box and their example also shows Wendy as the last item)
Richard
Michelle
Jay
Harriet
Wendy
Then I do nothing else except I click the button btnReversingAnArray again and then it displays correctly.
Wendy
Richard
Michelle
[code]....
Shared Functions - Two Threads Both Calling A Normal Function At The Same That Appends Strings
Dec 6, 2009If I have two threads both calling a normal function at the same that appends strings, sometime the output string is a combination from both threads as the function had not finished executing the code before it was called again... Would a shared function wait to finish first?
View 9 RepliesFunction - Method Or Routine That Converts Currency String In A Databound Textbox To Decimal And Ignores Empty Strings ""
Jun 12, 2011As the title says I have a form with many databound textboxes. some of these boxes have data in them and some are empty. I need to add them altogether, so far all of the conversion methods I have tried err out when they run into an empty string, except Val, but then Val won't handle the string with a $ in it. I've tried decimal.parse which handles the $ but not the empty string. So I seem to be in circle that I can't get out of.
View 2 RepliesVS 2008 Send An Object Instead Of Strings Which Includes Multiple Unsigned Integers And Strings
Aug 13, 2009I am working on a UDP Client/Server, and currently i have them sending back and forth strings, which i convert to bytes, and then open the bytes to read. I want to now send an Object instead of those strings, which includes multiple unsigned integers and strings.
View 39 RepliesPrepend A String To All Strings In A List Of Strings?
Aug 5, 2010I have a list of strings. For each string in that list, I want to prepend another string. I wrote a method to do it, but I was wondering if there was something already in .NET I could use to do this. It seems like something that could be built in, but I was not able to find anything.
Here is the method I wrote:
Private Function PrependToAllInList(ByRef inputList As List(Of String), ByRef prependString As String) As List(Of String)
Dim returnList As List(Of String) = New List(Of String)
For Each inputString As String In inputList
returnList.Add(String.Format("{0}{1}", prependString, inputString))
[code].....
It works, but I would rather use built in functions whenever possible.
VS 2008 Using List Of Strings Or Array Of Strings?
Oct 16, 2009I'm migrating from VB6 to VB.NET, in hence my questions below:
I have to write a function that returns array of strings.
How can I initiate it to empty array? I need it since I have to check if it's empty array after it returns from this function.
Is list of arrays better for this purpose? If I use a list - Is it empty when it firstly defined? How can I check it it's empty?
Use "replace" Function To Replace Multiple Strings Of Same List?
Apr 8, 2011I got this problem, is there way to use "replace" function to replace multiple strings of same list?
Like;
Dim rList As List(Of String)
rList.Add("A")
rList.Add("B")
[Code]....
How To Reverse A URL In VB?
Jan 14, 2012I have a string called "homepage" like so:Dim homepage As Stringhomepage = TextBox1.TextAs an example, homepage equalsDim i As String = Microsoft.VisualBasic.Right(homepage, (InStr(homepage, ".")))abel1.Text = iThat code should select all letters after the last fullstop, but it doesn't.
View 3 RepliesFind Strings Inside Strings?
Aug 15, 2011I have been looking for examples to find the string between two strings. This top one works fine;
Public Sub ReadData(ByRef keywordStart As String, ByRef keywordEnd As String, ByVal filename As String)
Using reader = New StreamReader(filename)
[Code].....
Now the first one is fine - Ext_Volume is result of the string between the strings <Volume> and </Volume>. <Volume> and </Volume> are unique so this is straight forward.
However the second one - "^FDExp:" is unique, but "^FS" is not unique. There are occurances of "^FS" before and after "^FDExp:".
How do I get the string to search AFTER the occurrence, not before etc?
How To Extract The Strings Out Of An Array Of Strings
Jun 24, 2011Dim str As String
Dim str2 As Array
str = "blabla duhduh"
str2 = str.Split(" ")
Use Regular Expression To Get Strings Between 2 Strings?
Apr 6, 2012Say the string is something like
bla bla bla bla (cat) bladfdskdfd dsgdsdksf (dog)
dfdshfdskdskfsdfkhsdf sdkfhdsfkdf (kathy) fdsfhdskfhdsfkd (doggy)
I want a generic.list (of string) containing
cat
dog
kathy
doggy
How to do that with regular expression in vb.net
Later I want to do something more complicated like getting all strings between "url":" and ", from this strings
[Code].....
VS 2010 Finding Strings Within Strings?
Jan 8, 2012Is there an easy way to find a certain string within a string and then return the strings that you find as an array?I have written this:
Public Function FindStrings(ByVal strSourceString As String, ByVal strStartString As String, ByVal strEndString As String) As String()
Dim StringStartposition As Integer
Dim StringEndPosition As Integer
Dim Currentposition As Integer = 1
[Code]...
VS 2010 Separate Strings Into Other Strings?
Jan 16, 2011I have this string called time. It's value is in this format: HH:MM:SS The numbers change, but the format stays the same. I want to separtate the code into 3 strings Hour, Minutes, Seconds.
View 2 RepliesCompile To Exe And Reverse?
Jun 12, 2009file with extension vb(*.vb) can compile to exe using vb.net coding. how to compile to exe using vb.net coding if use own extension(not *.vb) ?
View 5 RepliesCreate Reverse PTR For DNS And WMI?
Dec 14, 2010So far I coded CreateARecord to create the ARecords on my DNS server and it works like a charm, but in the GUI version of DNS it allows you to check a small box that creates a Reverse DNS PTR in the reverse lookup zone, Part of the code below is from VB6 which was code that allows for creating a Reverse PTR in the reverse zone, does anyone have a DOTNET version of that that checks to see if the zone exist just like the one below?
Code:
Private Function CreateARecord(ByVal RecordName As String, ByVal IPAddress As String) As Boolean
ConnectToDNSServer()
[Code]......
How To Reverse A Stack
Apr 21, 2011I need to write a VB.NET code to reverse the given characters using a stack.Input: 'S','T','A','C','K' So far I have input the letters, but I don't know how to get the console to reverse it. I'm a beginner to programming so please excuse my ignorance.
Module Module1
Sub Main()
Dim StackObject As New Stack
[code].....