VB Can't Get The Right Function To Work With Strings
Jun 20, 2012
Basically, 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]...
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Jul 2, 2009
I got this code in order to build an url for the link using a querystring from the current page. The problem is.... It doens't work.
[Code]....
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Apr 23, 2010
I was trying to use TextInfo.ToTitleCase to convert some names to proper case. it works fine for strings in lowercase and mixed case but for strings with all characters in Upper case, it returns the input string as is.
Nothing about this behavior is mentioned in MSDN documentation, any insights?
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Dec 2, 2011
I have two textboxes (TB01 and TB02) and one button (Button1).Then i have written the following [code]I made a loop to get each line and append them to TB02. The strings should be split in three parts (cutt off at the |) so i can later recall them. However it just wont work. I played around a bit but just cant get it to work.
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Apr 11, 2009
I cannot make the code work when it gets to consonants. I cannot get the consonant part correct.
Code:
'Date of last Modification: 4/11/2009
'Pig Latin Converter: Takes and English words and converts it to Pig Latin
'Rules stated in comments within calButton click event procedure
[code]....
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Sep 29, 2009
Can somebody give me hint how to use function Asc() in vb to reverse strings?
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Oct 5, 2011
Update: 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.
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Oct 16, 2009
Say 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?
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Jun 21, 2009
vb.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.
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Jul 27, 2010
I 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]...
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Aug 1, 2010
I'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.
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May 9, 2010
I'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.
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May 23, 2012
This 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-bistro_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-bistro__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 ? 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, 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]...
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Jul 21, 2011
I'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]...
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Mar 29, 2012
I 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)
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Dec 6, 2009
If 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?
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Sep 13, 2010
The following works:
[Code]...
However, the following doesn't work:
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Jun 8, 2011
I am having trouble figuring out how to get my function (lines 45-57) to work. Option Strict is supposed to be on. I am getting the error "Option Strict On disallows implicit conversions from 'Decimal' to 'String'." This is an intro problem so its going to be basic. [code]
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Oct 31, 2010
I expected the "Left" function in the code below to return the letter "A" but it returns nothing? Also, as a further test, Left(CP, 3) returns nothing?
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Nov 18, 2010
I have the following function written for dot net 3.5 that uses "ElementAt()" to successively return a value from a dictionary collection.
Public Function GetNextEntryInfo() As EntryInfo
If mFileInfo.Count > mIndexLoc Then
Dim entry As EntryInfo = mFileInfo.ElementAt(mIndexLoc).Value
[Code].....
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Aug 15, 2010
I have an image with a button for zoom on it. I want to zoom-in and zoom-out the image with mouse scrolling up and down, right and left. Can anyone help me with some example to understand how this can be done?
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Feb 6, 2009
I'm using some functions which can be compared to encoding/decoding, but it's a really simple and basic application, not really an encoding function.The problem is, the decoding function doesn't seem to work. For some reason, it doesn't work correctly, and I'm a bit stressed, so even after searching for a while, I can't seem to find it.[code]
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Sep 30, 2011
I want to change my default keyboard Layout for a installed another Keyboard Layout using my VB application.I googled about this and find Function LoadKeyboardLayout() Function to do that.But Is this support in vb 2010.When I wrote below code and there is no syntax error.But when I run the program there is an error called "PInvokeStackImbalance was detected." How can I solve this in vb 2010. Here is my code:
[Code]...
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Apr 10, 2011
I tested every example I found but it doens't work in vb 2010 express... Do I need to install anything moor to make it work?
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Aug 4, 2010
I am creating an text encryption/decryption for my friend and I to use on facebook, because his parents read his messages. I made everything correctly, but when I hit the buttons they don't do anything.
VB
Dim strString As String
Dim strString2 As String
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim strString As String
[code]....
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Nov 11, 2009
i got 5 treeview with checkboxes when i click button update i need to uncheck all the checkbox i also got a button which can clear all the checkboxes which it uses javascript function to clear i was wondering whether execute update after tat execute clear button automatic? it tat any way to implement this function? here is my java script of clear button which word perfectly
[Code]...
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Jan 23, 2010
In cell A1 of Sheet2 I have the following text [code]how to I get VB to recognize that the 4<sup>th</sup> character of the string has character code 63?
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Jul 27, 2011
I have work with BindingSource in VB NET 2008
--
dim bsA as new bindingSource
BsA = DB
DataGridView.dataSource = bsA
[code]....
but data has changed this is correct ?I don't wont change this data what I have to do ?
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Apr 6, 2011
On my software , i have a function for search in the list a member . The function have more fields : Girls , Boy , Old , etc ... but the software doesn't work correctly. I want him to search with several conditions, adding AND. Here is the code :
Vb
For Each MemberALister As MemberInfo In _Listemember
If Me.Girl.Checked Then
If MemberALister.Nom.Contains(Me.Genre.Text) Then
[Code]....
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Feb 16, 2012
I am migrating project from .net 3.5 to .net 4.0 and faced the following issue. There are 2 DllImport statements:
<DllImport("hid64.dll")> _
Public Sub GenerateHardwareID( _
<MarshalAs(UnmanagedType.LPArray, SizeParamIndex:=1)> ByVal Buffer As Byte(), _
[Code].....
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