"InStrRev" Function Not Counting From Right To Left?
Aug 11, 2011
I have an app that takes your full name: First Middle(If any) and Last and converts it to UserInitials String. If the name doesn't have a middle name, "X" should be displayed for the Middle Name.
Example name: First Middle Last = FML;
Example name: First Last = FXL
Obviously, if there is only ONE space present, there is no middle name. I'm having issues calling InStrRev to count from the right to the left.
Ex: InStrRev(Name_Input, " ")
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Jul 29, 2010
I'm trying to format a string with the left and right fxn but am getting an error "Public read only property () as integer has no parameters and it's return type cannot be indexed"[code]...
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Jul 11, 2009
i m using datetimepicker to choose date..i m extracting date from sql database...but i need to send only the date part not the time part.i m not able to do left funtion...here's my code...
cmd = New SqlCommand("select * from employee_log where log_datetime between '" + left(DateTimePicker1.Value,10) + "' And '" + left(DateTimePicker2.Value,10) + "'", cn)
the syntax with the left is incorrect...how do i do it...?
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Jan 20, 2012
I have some vb code i would find it helpful if someone was able to convert it to c# for me. I dont really know what the left function does?[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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Oct 17, 2010
I have a very small VS 2010 app that basically reads the records of a text file, adds some additional information to the end of the record read, and writes the new record to a new text file.The issue Im having is with the Left() function.I need to take all chars left of position 10 of a text box and add it to the end of the new record before I write it. When I use the Left() the "Error List shows an error related to this function.The error says:Public Property Left As Integer has no parameters and its return type cant be indexed.It gives two solutions: 1) Generate Method Stub Left in Project1.Form1 and 2) Generate Property Stub Left in Project1.Form1 When I select solution
1) that creates a warning indicating: Function Left conflicts with property Left in the base class Control and should be declared Shadows. When I select solution
2) that creates a warning indicating: Property Left shadows an overloadable member declared in the base class 'Control. If you want to overload the base method, this method must be declared 'Overloads.
Here is the code:
Public Class frmProcessFile
Private Sub cmdProcessFile_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
[code]....
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Aug 14, 2010
VS 2008 [RESOLVED] Using the Left function
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Mar 15, 2010
Since the string class does not have a Left method, how would you do this in VB.Net. I could use String.SubString(0, x), but the problem with this method is that it throws an exception if the String is not at least x characters long. Should I use the Microsoft.VisualBasic.Left function instead?
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Dec 19, 2008
I am trying to do string manipulation of an OpenID in my codebehind. For example, if the user enters " url...I want to do the following:
1. Remove the http:// or https:// if it exists
2. Remove the "/" at the end of the OpenID if it exists
So that all would be returned is url...I have used the Right, Mid and Left functions before with a string that contained spaces but I'm not sure how to accomplish what I'm trying to do here.
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May 9, 2009
As a non .net programmer I'm looking for the .net equivalent of the old vb function left(string, length). It was lazy in that it worked for any length string. As expected, left("foobar", 3) = "foo" while, most helpfully, left("f", 3) = "f".
In .net string.Substring(index, length) throws exceptions for everything out of range. In Java I always had the Apache-Commons lang.StringUtils handy. In Google I don't get very far searching for string functions.
Edit:@Noldorin - My first encounter, although it took me several seconds to do the same in c#:
[Code]...
Note the static class and method as well as the this keyword. Yes, they are as simple to invoke as "foobar".Left(3). See also c# extensions on msdn.
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Sep 22, 2009
say if I have a string 010451-09F2
How to I get left of - from the above string in vb.net
I want 010451
The left function doesn't allow me to specify separator character.
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May 2, 2011
For years I never had trouble with this String. Format function until today when I got a value longer than 0 characters and the function returned all the characters in the string instead of just ten. Now sometimes I get less than ten characters so I can't use the substring with out getting an error. I can try the left function but I was hoping there was a solution with the Format function.
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Mar 16, 2012
I'm trying to develop macros for games. I'm currently coding with vb 2010 and I'm using the keybd_event API. It works great, I've done many working macros but I cannot find a way to send arrow strokes using this API. (Left, Right, Up, Down) I don't want to use the numpad. Here is what I've found: [Code] For some reason, nothing happens, no keystroke seems to have been sent. When I use any other ascii decimal from the ascii table, it does work but not for the arrow strokes.
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Mar 28, 2009
I'm using vb2008 Is that possible to change the pointer from left to right to right to left in the TextBox.
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Oct 28, 2011
Is that possible to change the pointer from left to right to right to left in the TextBox. to became as it show in the pic below.
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Oct 8, 2011
I am trying to figure out how to make a .SubString get the characters from right to left not left to right.Say if a user enters 123456789 in text box 1 and I use textbox1.text.SubString(0,2) it will display 12. But, I want it to get 89.I do not want it to get 98, but 89. I tried textbox.text.substring (0, -2) but that just gives an error.So if Gold is entered it gets ld
Fun
it gets un
VisualBasic
it gets ic
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Jun 6, 2011
I got a panel that i am adding labels to. I have autoscroll enabled on it so when they fill the viewable space it scrolls. but i need to put the labels to the left unviewable space(when left scroll is already at 0) The label is placed but i dont get the scroll bars and i cant force it to scroll to a - value.
Is this even possible? Same thing with UP.
Or is the Scroll only limited to Bottom and Right?
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Oct 12, 2011
I want to make an numerical integration method with takes in an analytic function and integrate it over a specific interval. For the numerical integration procedure I want to use some procedures in nr.com. The problem is that these are programmed in C++ and they uses functors to pass a function to the integration method. How can I do this in VB 2010?
I want to initialize the function (i.e. set a=1,b=0 for function y(x)=a*x+b) and then pass the function to the integration method. Then when the integration method call the function it only calls the function with one parameter (i.e. x since a,b is already set)
What is the best way to do this in VB2010?I want to make a general integration method where I can pass any single valued function and integration limits.
I have just started using VB, and from what I have found so far it seems like the tools you have is
- to us a delegate for the function
- to use a lambda expression for the function
- send a pointer/adressOf
- to create a function class/structure and submit this to the function
As for now I am most inclined to create a function-class. But I am not really sure how.F.ex. I make different classes for each "uniqe function" I want to integrate, but how can I pass them to the integration function when I need to specify the argument type in the integration-function-call?This seems like a basic problem which applies to many Math operations, so I think it would be very useful to clarify this.
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Mar 16, 2012
I have a simple form with Start/Stop buttons and a textbox that shows a ctr. When you click the Start button it loops to displays an incrementing ctr in the textbox. Can't seem to figure out how to get the Stop button to work while the ctr is being displayed. I've tried putting the loop in BackgroundWorker and Delegates too with no luck. Am I close or in left field, what's the magic? [code]...
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Mar 14, 2010
I need a simple method of counting all characters in a text box and when a button is clicked a message must display if the amount of characters has exceeded 25.
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Feb 4, 2011
Ok, so I have a string called item. It's value is "Coffe`". When I try to get the number of caractors by using:
textcount = item.length
However it returns with the value "5". even though there is 6 caracters.
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Oct 16, 2009
'search Male
Dim cmdTextName As String = "SELECT isnull(Count(Gender),0) as TotalMale FROM tblStudent WHERE (Gender = Male)"
Dim sqlcmdName As New SqlCommand(cmdTextName, New SqlConnection(GetConnection))
sqlcmdName.Connection.Open()
[code]....
Am trying to count the number of male in my table however when i try to run using this code it pops an error which is "invalid column name Male" what seems to be wrong with my statements?
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Mar 7, 2012
Is bindingsource.count only used to give the total items in a list? I'm trying to prepare data for a pie chart, and need to count the instances of different items in a column (If there's a way that the Chart will do this itself, I've not been able to find it, it seems to need linked items and values). The bindingsource is already filtered and would prefer not to combine filters.Would it be best to loop through the rows of the column and count them 'manually' or is there a quicker way of doing this?Put it in a datagridview? Is it possible to use Aggregate Count on a bindingsource?
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Jul 6, 2009
I have created my list box, and can add things to it, now i would like to count the number of items in my list box, also the code that this is going to be the interface for has a maximum number of 20. How do i count numbers in a list box and also put a cap on the number of things that can be entered into the list box? Ps this forum is fantastic, i have learnt so much more today than all of last week!
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May 23, 2010
I'm trying to create an application similar to the site WhatPulse, which will generate an image with my clicks and keystrokes. WhatPulse only updates the image once every 24 hours, so I am going to make an application to keep track of that for me, only with realtime stats.
How can I count total keystrokes (outside of the application itself) as well as total clicks, in vb.net?
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Feb 20, 2011
I'm an inexperienced programmer,I want to count the number of line's in a string.In "hulp" are several line's, all ending with "vbCrlf".I have tryed If hulp.Substring(i, 1) = vbCrLf Then .... but that doesn't seem to work.
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Aug 14, 2009
I have a recordset rst, that returns the data i require ok. However i wish to transfer this data into an array, and also count the amount of records, as a counter, i.e. 23/312 records.I have tried the way i have used in the past, not .net, of rst.movelast etc, but this doesn't seem to work.
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Nov 27, 2011
I want to count all of red pixel in an image. This is my code :
Dim x, y, kq As Integer
Dim image1 As Bitmap
image1 = Bitmap.FromFile("D:FiberAll.bmp")
[Code]....
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Feb 3, 2012
Counting results in Object?
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Sep 23, 2009
I would like to count records of a datagridview after having applied a search criteria
the code i am using is the following:
Private Sub count_btn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles count_btn.Click
[code].....
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