I need to count the items that meet a criteria in a list(of structure) in .net 2.0. eg
Dim listcars as new list(or car)
Structure car
Dim Name as string
Dim year as integer
End structure
Now i need to count all cars with name toyota etc, how do i do it.
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I am attempting to read the results from a SQL query into a List(Of) and I can see the List.count while adding items to the List increments, however in another part of my code when I am attempting to read the List the List.Count returns 0. My List is as follows:
[Code]...
So i have 4 items in a listbox how do i count then up together to show in a label [code]...
View 4 RepliesIm trying to count how many items are in a list(of)
I looked it up on google but still cant figure it out.
On to my question.I have a List(of String) that contains multiple items in each index.
A list declared as:
Dim NewStrings As New List(Of String)
May contain the following:
item (0) - (1 MKNO ABC 2.45 STND 3.3)
item (1) - (1 MKGO ABC 1.34 STND 2.5)
item (2) - (1 MKNO ABC 2.45 STND 3.3)
item (3) - (1 MKNO ABC 2.45 STND 3.3)
[Code]...
How can I create a list (of my custom structure) to hold only unique items? This list should be created from another list.[code]...
View 5 RepliesHaving a bit of trouble using the List.Find with a custom predicate i have a function that does this
[code]...
by doing it this way means i have to have a shared "currentKey" object in the class, and i know there has to be a way to pass in the values i'm interested in of CurrentKey (namely, keyname, and oldkey) ideally i'd like to call it by something like keys.Find(AddressOf FindByOldKeyAndName(Name,OldVal))however when i do this i get compiler errors.How do i call this method and pass in the values?
i have a listview box full of items, image below:
when i click a button i would like a msgbox to pop up displaying how many are alive.
How would i do this ?
Also how would i remove all items that status is "Dead"
If I have a list of list of myparams, can I access the sub structure of my params directly by indexing the list emelments?, eg..structure myparamsdim p1dim p2end structurepublic my_list as new list(of list(of myparams)))' now try to access list data directly by indexing..my_list(2)(3).param2 = 3but line above cuses error msg= Error 1 Expression is a value and therefore cannot be the target of an assignment!VB2005 starter
View 4 RepliesI have a list(Of transaction) :
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How can I transform it to a list(Of transactionShortened) :
[Code]....
I am quite new to VB.NET and I am attempting to create a console application that can write, save, load and edit sets of data. Lets say I have something like this:
[Code]...
However, I have no idea how to load the data so I can manipulate it in the EMPLOYEE structure system. I am not sure if I have made my question clear enough, for as you can see I'm quite new to programming and am not essentially familiar with the terms of speech.
How do you let all the numbers of listbox2 count to each other to get a total?
View 4 RepliesHow can I count the number of items in the listview.
Example scenario.
Today, I added students say, 20 students and tomorrow I added another 15 students, i need to have a breakdown on how many students i have been adding per day.
i am developing an online shopping site..so when the user adds any item to the cart i store it in a table...now what i want is to count the number of items in the cart as well as update the number of items in cart every time the user adds a new item....
Public Function AddToCart(ByVal itemID As String, ByVal itemName As String, ByVal itemPrice As Integer, _
ByVal offer As String, ByVal buyNo As String, ByVal userID As String) As String
Dim sqlStatement As String = "INSERT INTO shoppingCart" & _
[code].....
I have CheckedListBox and four item in it!Now I want to count number of checked item. For this I use:
countnumber=CheckedListBox1.CheckedItems.Count
But countnumber is always 0 even if I checked CheckedListBox items or not!
I have this linq to entity
From r In ReceiptRepository.Fetch
Where
r.RECEIPTDATE >= ReportStartDate And
[Code]....
This is working fine, except the count property, it is just giving the number of group count. I don't know how to find out each Tender Count
in a list box which is populated by the end user using this code
Dim lb1s As String = Form1.Folder.SelectedPath
Dim di As New IO.DirectoryInfo(lb1s)
Dim mydirInfoArray As IO.DirectoryInfo() = di.GetDirectories
[code]....
I have 3 text boxes i want to display the number of items in the list box which contain certain words,So for example in textbox1 i want it to display the total number of items in the list box which contain "(U) or [u] or [ntsc-u]" etc, this will be triggered via page load or a button which ever works best.
Would it be possible to list the number of items in a rich text box? Each item starts on a new line. Something like the following but obviously for a rtb.
TextBox1.Text = ListBox1.Items.Count
add a structure to a list
View 2 RepliesI am trying to get the number of items that are checked in my CheckedListbox. The Items.Count seens to only reference the entire collection so I am not sure how to narrow the count down to only the ones with checked boxes.
VB
'
Dim i As Integer
[Code]....
Basicaly I have the option for the user to print a series of reports directly to a printer that is not located in the same area as the application user. I want to show the user a progress bar how far into the process they are but I can't do it without getting the Maximum value of the Progress Bar (number of reports checked for printing).
I have a project where I am using a listview to display a data received through XML. One of the columns called "STATUS" display only 2 text data, either "ON" or "OFF". I would like to know how to count how many times the word "ON" it is apearing in that column and same for the word "OFF". I am using this code to count how many lines I have in the listview Label1.Text = ListView1.Items.Count() but I couldn't figure out so far how to count of the words "ON" or "OFF" in the column "STATUS" wchich have the index 9.
View 4 RepliesWould I be possible to get just a count of how many items are inside a mailbox inbox??
View 3 RepliesHere is the current code I am using to add files and check the number of lines in each file that was selected (file qty). This is also added into a seperate listbox for viewing.
Dim selectedItems = (From i In ListBox2.Items).ToArray()
For Each selectedItem In selectedItems
ListBox1.Items.Add(selectedItem)
[code].....
I don't know what is wrong with this code, but it is not detecting when there are no items in the listbox. It ALWAYS returns that there is something in the listbox, even when there is not and keeps erroring on the line of code in BOLD.[code]
View 1 RepliesI have to extract from a text, group letters (2-by-2 characters), for example : from this string : "THIS IS SOME" => THHIISS IIS
View 32 RepliesI have a listview that I add items to by loading from a file, and that works fine. I then edit the items or add new ones, and on form dispose, the file is supposed to be saved containing the listview items, but when I step through this process, mylistview.items.count is said to be zero, which I know is not true because I can see the items right on my screen, I added them myself.[code]I use this same method for saving and loading to and from listboxes, and it works fine.
View 3 RepliesI am back as always! Here is my question. First and formally, With the code;
SendRequest("http://aavirtual.net/brett/core/classes/class.acars.php?fun=6")
Dim Splitter
Splitter = Split(request, ";")
With that data above, I am creating a For Statement to loop all the data being pulled, into a Rich text Box. Here is the question. I need to count the number of objects Splitted.
Example:
Car;
Train;
Boat;
Bike;
The Splitter is ";", And there are a total of 4 Objects needing to be split. How can i count the number of objects? The Objects are Car;Train;Boat;Bike, And I need visual basic to count the number of those objects which is 4. But I need a function that will output that.
I am trying to count how many items are in an ArrayList and then save that into a Label variable that is updated each time an item's barcode is scanned.Information about the code below:rejectedList is the ArrayList that contains rejected parts.RejectedPartsNumberLabel is the label I am trying to update with the count from the ArrayList
Public Shared Function isFault(ByRef code As String) As Boolean
rejectedList.Add(code)
RejectedPartsNumberLabel.Text = rejectedList.Count
Return (code.Length = 7 And IsNumeric(Mid(code, 1, 1))) Or (code.Length = 4 And Mid(code, 1, 2) = "NC")
End Function
I am a student in a Visual Basic class. We were working on a project using the Count property of the ListBox. I'm using Visual Studio Professional Edition 2008. When I enter a line in the editor that looks something like this: If lstResults.Items.Co
IntelliSense will generate a little balloon that says 'Public ReadOnly Property Count() I saw the () after Count and thought that meant that was the proper way to code it. So that is what I did. The code seems to work with ...Count() or just ...Count. I was wondering if there is some reason why the parens show up after the description of the Property in IntelliSense.
I'm making an app on wpf.Basically, I have a list view with 6 columns,For each item of the listview, its details are displayed are displayed in each of the columns, except the first.Basically I want the listview to automatically display a count of the items for the 1st column.[code]I have sorting and other weird stuff happening in the app, and I want to keep the first column constant. All that is needed from the column is that it counts the items.[code]I just realised this isn't vb .net so to speak.I code only on vb .net, but having trouble with that xaml bit atm. Would rather not use vb codes for solving this particular matter if possible
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