VS 2008 Comparing Strings?

Aug 10, 2009

Hopefully this question will have an easy answer; I've tried searching for the answer myself, but I don't know what to search for (I don't know what you would call this).

Is there a way to compare a string to see if it matches more than 1 value?

[Code]...

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[2008] Comparing Two Strings If They Are Equal?

Mar 8, 2009

I have the following
Dim input As String
If e.KeyCode = Keys.Enter Then

[code].....

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VS 2008 Authentication Server Fail At Comparing Strings?

Feb 14, 2010

Just wondering if anyone knows why does my authentication server fail at comparing strings? Also is there a better method of comparing strings than what im using below? User types in a textbox then sends text to server, server then checks it

[Code]...

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VS 2008 Comparing Version "strings"?

Aug 25, 2010

I cant seem to think this morning.I am trying to compare version strings. These are scraped off a website...

examples:

4.5.0.55
4.2.2.128
4.5.0.37
5.0.0.713

how do i make sure I am grabbing the highest version?right now I have it checking the length, if less than 9 .. add a zero. then remove the .'s and convert to an integer. then just check. I know thats not the best and most accurate.

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Comparing Strings In A Listbox?

Nov 19, 2011

I'll use this image to illustrate my question.

[URL]

Basically, how would I go about it searching through the listbox for "String 4" and then a messagebox coming up?

But, if it doesn't find that string an error message comes up.

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VS 02/03 Comparing Strings That Contain Quotes?

Aug 18, 2011

I'm trying to compare the selected item in a combo box to the items in a collection in search of a match. There is guaranteed to be a match because the combo box was originally populated from the same collection. This is the code I'm using:

[Code]....

This code works for other collections but not for this one. In this case, the loop stops after the first iteration, regardless of what's selected in the combo box. I have confirmed that the collection contains the correct data and that there is a match for the combo box options. The only difference between this instance and other instances is that the values in the collection and in the combo box contain a double quote at the end. I suspect this is what's causing the error. (To be clear, there is no error message, it's simply not returning the correct value.) I've tried various string compare methods but none of them have fixed the problem.

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VS 2005 - Best Practice For Comparing Strings

Jan 21, 2010

Below two which is the best practice to compare strings...
If "A".ToLower = "a" Then
'....
End If

If String.Compare("A", "A", True) = 0 Then
'...
End If

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Comparing Large Array Lists - Matching Strings?

Apr 26, 2011

I have two array list same size, depending on the information gathered by previous functions. The size of the arrays range from 2 - 45 in length, both arrays always have the same length. I am trying to match one string in one array to another string in the second array. When they match then add Item to List.

Here is my
Do Until i = Arraylenght
info = Replace(myAL(s), " ", "")
SortedArrayList(m) = Replace(SortedArrayList(m), " ", "")
SortedLine = Split(SortedArrayList(m), "Price=")
If myAL(s).Contains(SortedLine(1)) Then
[Code] .....

This code works up to an array of not more then 4 in lenght, when working larger size array then 4, the minute it get to 5 I get this Error:
Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index

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Comparing Lists Of Strings - Copy And Display Elements?

Dec 20, 2009

I have two lists of strings. One is a list of all students in a class and the other is a list of students in the class that completed an assignment. The two lists are part:whole. So we have two loops for copying elements and displaying them in a list box for only the students who did submit.

Dim f As Integer
f = 0
Dim h As Integer
h = 0
While (usersinclass.Count > f)
h = 0
While (usersidthatsubmittedassingments.Count > h)
[Code] .....

What I need is the remaining portion of the "usersinclass" list. (i.e. The students who did not submit). I tried an Else statement BUT with nested loops, every element is guaranteed not to match at least once, so I was getting elements that shouldn't be there. So, is there anyway to run the given lists against each other again to pull out the remaining students? (preferably with no repeats).

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VS 2008 Send An Object Instead Of Strings Which Includes Multiple Unsigned Integers And Strings

Aug 13, 2009

I 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.

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VS 2008 Using List Of Strings Or Array Of Strings?

Oct 16, 2009

I'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?

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Way To Concatenate List Of Strings Into A Comma-separated Strings, Where Strings Are Members Of An Object?

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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VS 2008 Comparing The Best?

Dec 8, 2010

i have 4 listbox and i named it

1. listbox40
2. listbox20
3. listbox5

[code]....

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VB 2008 Loops And Comparing To 0?

Jul 5, 2010

I've had no issues with this in C++, however, in Visual Basic 2008 (not sure about 2010), when I run a Do loop of any type, and run a comparison to 0, or even 0.0, the code loops a second time.

[Code]...

To my knowledge it should cancel after the 5th line, since the condition is satisfied. However it does not. Instead it runs the loop one last time.If I put in a comparison of any number higher or lower than 0, it works as it should, and cancels properly when the 5th line is written. So 1, -3, 0.0001, etc. works, so the problem lies with 0.

Now I do not know that much about the debugger, but it should be mentioned I'm running express edition, and I could not find anything that lets me see how each line compares. Nor, after an hour of searching online, could I find a single forum where this is answered (though perhaps that is due to how I worded my search).

If someone could explain to me why the comparison does not work as it should and loops a second time when comparing to 0, or even 0.0 (one person thought it was a difference in balance being double and 0 being an integer),

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VS 2008 Comparing Files?

Feb 28, 2010

How do I check if 1 file is the same as another file? For example, lets say I have to files. Both have the same name, but different contents. How would I "compare" the files and tell if they are the same or different?

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VS 2008 Comparing Times?

Jan 8, 2010

How do I tell if the current time is between two other times? ie. is it currently between 8:00 AM & 4:00 PM.

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VS 2008 Is There Another Way Of Comparing Byte?

Aug 21, 2009

I'm wondering if there is another way of comparing two byte arrays, that isn't going through each index of the array.[code]But that would give me false negatives. If I wanted the real results then I would have to add a Not.

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VS 2008 Comparing 2 File Names?

Apr 13, 2012

This is the code I have in one button and I have 2 listboxes that will be filled with the info it gets.This code should compare 1 avi file to one jpg file and see if they have the same name. If YES then it will add the avi path to one listbox. If they don't have the same name OR the .jpg doesn't exists it will add avi path to another listbox.. But currently it is adding the avi name to both listboxes.

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VS 2008 Comparing An Array With The DataColumn?

Dec 28, 2009

First of all - It`s my first post here so welcome I have a short question.I have an array with strings values, and a datacolumn with values of the same data type. The question is - what is the most efficient method to find values which are in the array, but aren`t in the datacolumn?

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VS 2008 Comparing PDFs Programatically

Jun 14, 2011

I've got a project where I'm going to have to compare some PDFs. I've checked out a few SDKs, but I was wondering if anyone else has had to tackle this and may have some suggestions?

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VS 2008 - Comparing Values Of Dropdown With String

Jul 10, 2009

I am making a app that reads options of a ini
dim config as new iniconfigsource("patch.ini")
dim test as string = config.configs("news").getstring("test")
Then I made a dropdown with options

I want my script to compare the values of the dropdown with the string readed from the ini
then uses it as selected value (the so called standard value) the one uc without clicking on the arrow if the none of the values match with the string value of the ini then it executes
dropdown1.selectedindex = 0

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VS 2008 Comparing Combobox To Database Field

Jan 30, 2011

I have a combobox that displays saved names from the fullname column of my database. This works fine, all the items under the fullname column are added to the combobox. However, I also have several textboxes on the same form that also need to display data from the database, from the same record. So I was wondering if this was possible:

[Code]...

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VS 2008 - Comparing Variables In Private Sub With Public Class

Nov 11, 2009

I have these list of RS-232 strings declared in my public class
Public Class TouchInterface
Dim WatchTVbtnCmd As String = "rs232command1"
Dim VolUpbtnCmd As String = "rs232command2"
Dim VolDownbtnCmd As String = "rs232command3"
Dim SystemOffbtnCmd As String = "rs232command4"
Dim RadiobtnCmd As String = "rs232command5"
Dim MusicbtnCmd As String = "rs232command6"

I then have this private sub. For the sake of this thread, what I would like to do is get the name of the label that was clicked which in the code below is already done, convert it to string (not sure if this needs to be done), this is also done in the code below. Next I want to compare the labelnamestring to all the variables in the public class to find out which one it is equal to and then disply that variable which should be my rs232 string in the message box. I have also added "Cmd" to the variable names above so I also need to work out how to add the text "Cmd" to the string to properly compare.

Private Sub Musicbtn_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles WatchTvbtn.Click, VolUpbtn.Click, VolDownbtn.Click, SystemOffbtn.Click, Radiobtn.Click, Musicbtn.Click, GardenVolUpbtn.Click, GardenVolDownbtn.Click, GardenRadiobtn.Click, GardenOffbtn.Click, GardenMusicbtn.Click, GardenMediaCenterbtn.Click
Dim labelname As Label = DirectCast(sender, Label)
[Code] .....

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VS 2008 Adding Or Comparing Faster At Binary Level?

Sep 16, 2010

I was just wondering if a computer would add two numbers together (positive) faster that comparing two numbers.

I was thinking that it would be comparison (best case) due to the fact that the 0th bits could be different right off the bat. Where as when adding, moving from bit 0 to N is mandatory for addition.

But then again a computer may add/compare differently than I am imagining.

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VS 2008 Comparing Picture Boxes And Textbox Information?

Jan 8, 2010

I'm trying to make a Lottery program on visual basic 2008, but there's one thing that I am stuck with.Note: My explanation may be hard to understand, so if you would rather have me send you my code and see how it works, I'm fine with that. My code is pretty long so far, so I didn't know if i should post it on here.

My program has 6 picture boxes lined up horizontally, and has one text box underneath each one. There is a play and stop button on the bottom left corner.I've altered my program to have animations for the picture boxes. Instead of having a random picture picked, I have it so that each picture box scrolls through a series of 10 numbers when the user presses play.

When the player presses stop, the picture boxes stops scrolling, and random pictures are displayed in each box. (The picture is really just a black circle with a number in it).The text boxes below the picture boxes are for the user to put numbers in. These are the numbers they select for the lottery. Now this is my predicament. Since the picture boxes decides what the winning lotto numbers are, how can I compare the numbers in the text box to the pictures?

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Prepend A String To All Strings In A List Of Strings?

Aug 5, 2010

I 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.

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VB 6 And 2008 Strings?

Nov 22, 2009

im wounder how to make a string error like that in vb so if the user write echi and not echo on a string it will get a error like a other variant of this if richtextbox1.text = ("ecoi") then msgbox("string error") but only on 1 string

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Comparing The 2 Images Without Actually Comparing Them Pixel By Pixel?

Mar 20, 2012

I have the code below on a timer( "b" is a bitmap )

If
Not (Clipboard.GetImage
Is
Nothing)

[Code]....

The problem is that it raises the event even if the picture didn't change.

comparing the 2 images without actually comparing them pixel by pixel (too slow to do the job)?

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VS 2008 - How To Send Strings To Other PC

Aug 17, 2010

I'm going to start a project so what I need to do is make something that is kinda like an email. I am working with the register part of it because just like an email you have to select who to send it to.

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VS 2008 Add Color To Some Strings?

Feb 1, 2011

I read a text file and I want to make some changes and still save it as a text file.The change is to add color to some strings. How to do it?

1 2 3
3 4 5
4 5 7

Then

1 2 3
3 4 5
4 5 7

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