I was wondering how you create a form with three lists. Each list representing a different array.
I guess the question is how do you take an array and make it into a list so it shows up on a list box?
I have been assigned a program for homework in which I need to take in information about songs from a text file and then be able to sort the list alphabetically, by genre and by length. I also need to be able to filter it by genre. The user can then move songs they choose from the master list to a playlist where again the list can be sorted by either genre or play order.My book only covered sorting array when they are one dimensional however I need to be able to sort a multidimensional array by different columns. I asked my teacher but she had so much going on that we didn't really have time to get into it, so I decided to ask here.
I'm not looking for code, just to get pointed in the right direction. For instance rather than using a multidimensional array would it be better to pull the values in and then put them into an array of song objects with properties for each value? And if I choose to go that route is an array the best structure to use? I have to use an array of some type, but the problem says nothing about whether or not it can be a list or other array type structure.
I declare my 2D lists:
Dim _invoiceitems As New List(Of List(Of String))
Dim _dbitems As New List(Of List(Of String))
Each List is filled like this: Example Code To fill:
_invoiceitems.Add(New List(Of String))
_invoiceitems(0).Add("Code #")
_invoiceitems(0).Add("Quantity")
Well, now i need a third list called (_changesitems) Note that this result with the differences: be the result of subtraction of quantities if this is found (dbitems - invoiceitems).
I've had experience with using hashvalues from String objects. E.g., if I have StringA and StringB both equal to "foo", they'll both compute out the same hashvalue, because they're set to equal values. Now what if I have a List, with T being a native data type. If I tried to compute the hashvalue of ListA and ListB, assuming that they'd both be the same size and contain the same information, wouldn't they have equal hashvalues as well?
Assuming as sample dataset of 'byte' with a length of 5
{5,2,0,1,3}
I have a pipe delimited file with 3 values on each line, something like this:
0001|234587|Bracket, 3 x 3 x 0.125, Steel
0001|254378|Bracket, 4 x 4 x 0.125, Steel
0003|234587|Hinge, 4 x 4 x 0.125, Brass
The first Value can be duplicated in the file, the second value also can be duplicated. There are no instances of BOTH values duplicated on 2 or more lines. I need to read another file and get the first 2 values, then look up those two on one line to get the proper 3rd value. The "other" file looks a bit like this:
0E0522070001EF54ED7823458700FF00FFA5A5A5A5
-----------XXXX-----------XXXXXX--------------------- (X's are the data, the rest is filler to comply with some code unknown to me)
Right now I have code to read all into an array (split on vbcrlf), then split each line on "|" and populate three arrays, I then go thru every element of the first column that matches the value I am looking for and test that the second column also matches the second value and if so, return the third array contents at the same index. This seems crude and inefficient. Cannot use a hashtable (I don't think) as it only supports 2 values. A List(Of) doesn't seem to work either and I don't want to use a database.
I have a usercontrol that has a popup that displays another usercontrol when the user selects an item from a listbox. When the parent initializes, all the usercontrols initialize.
<Popup x:Name="PopContactLogs" Width="670" StaysOpen="True" AllowsTransparency="True" PopupAnimation="Fade" PlacementTarget="{Binding ElementName=PageCustomerHome}" Placement="Center">
[Code]....
and it just keeps the original data in there. I'd really like to just reinitalize it every time and basically have a new webpart each time.
Find common values in multiple arrays with PHP Pretty much does what I need, but in PHP, I need VB. My situation is I am trying to create an intelligent stock pick system based on multiple stock locations. At the point of invoicing, we loop through the items invoiced and check the stock database for available stock.
If all items on the invoice are available to pick from stock location 1, then all should be picked from stock location 1... etc. If all most items are available from stock location 1 except one or two, then pick all stock from stock location 1 except for the exceptions which should be picked from the location with the highest available stock. Finding highest available stock is simple, but I can't work out how to analyse the stock availability from multiple locations and finding the common stock locations.
[Code]...
my binary search isnt working, i think it has to do with the fact that im using a list and its searching thru an array
List
Option Strict On
Public Class Form1
[Code].....
Basically what I'm having to do is create a program that takes a list of CaseIDs and compares them to a table on a remote SQL server. However, the table holding the CaseIDs on the remote server has nearly 120,000 records.
Currently my plan is to query all records on the remote server, save the query and the current list to tables in an Access DB file and then run an outer join to see which CaseIDs have no matching records on the remote server.
I believe this will be a much slower process than I would like. If I could load both queries into arrays or lists in VB and then compare them (therefore, not having to write 120,000 records to a DB file), it would be much faster.
Ever since I started using VB.Net I have been using the Generic List collection List(Of <Type>). Arrays, I haven't used so much. I used them a lot more when I wrote C code years ago.
1.) Are arrays considered a type of collection like Lists, Dictionary, Queue etc are? Or are they in their own category.
2.) Can I iterate over an array with a For Each loop like I can with other collections or do I stick with the normal For loop for arrays?
3.) There are certain methods that return arrays. Can I set a list object to hold this return value instead of an array?
I am creating an excel report in vb.net using the office interop. When the report is completed I am saving the excel file on the C drive. The users have asked to save file anywhere they want not just the c drive. code to popup an opend file dialog in asp.net?I want the dialog to popup in a saveAs in ASP.NET. I know how to do it in win forms, but I am creating an excel report in asp.net and calling the worksheet objects SaveAs property that excepts a fileName. So right now I just hardcode a file name in there. The users want to choose a file location?
View 3 RepliesOnce I click a link, I want to popup a dialog/window to display all the information of products. The parent page should be disable while the popup is opened. then, I would like to be able to pass information from the popup to the parent page..
View 2 RepliesAtm i have a webbrowser navigate to that url and then a save dialog popsup, default to IE i think.How would i get this file to download without a popup dialog ?
View 2 RepliesI'd like to give a homework assignment to a person learning VB.NET. I'd like it to use basic inheritance and a variety of data structures including queues, lists, arrays, or stacks in a windows forms application. I was thinking of a pizza-ordering application. This would allow them to utilize some basic inheritance and practice using .NET UI elements.
View 2 RepliesCommand Line Project:Export crystal report to file in pdf/excel/word format & optionally email it.Command line args incl input parameters for the crystal report.VB6 being converted to VB.net using Visual Basic 2005 Express Edition.Creator has since left & I need to fix/edit the application.Having problems... when call Export, CR params dialog box pops up awaiting user input (& params not set properly), dont want this to popup.
Code:
Imports CrystalDecisions.CrystalReports.Engine
Imports CrystalDecisions.Shared
Dim objReport As New ReportDocument
[code]....
Can I create new dialog results for my dialog forms? And then use them with Form.ShowDialog method?
View 13 RepliesI have to retrieve same amount of datas from a variable number of clients in an arraylist. I know I can put arraylists in arraylists but would be easier to get one arraylist for each client dynamically declared.
Ex: alClients (XXX, YYY, ZZZ)
for i as integer = 0 to clientsNumber -1
Dim nameVariable = "al"+ alClients(i) ' = alXXX
Dim nameVariable as New arraylist()
...
Next
But it seems not to be possible to do that so is there a way to do it? By surcharging constructor of the Class New ArrayList(), ok but how??
How to properly create custom controls containing populated lists?For example: I need a combobox control which contains a list of products, then I would reuse this control in other project.
[Code]...
and it works but when I run the project each item is duplicated - this is because list is populated twice. First when user add a control to form, second by designer when project is started.I already found a solution to prevent adding items in edit mode, but this is not what I need. I would like to have them existing in edit mode so they could be edited at this point.
how to create a popup blocker using Visual Basic?
View 5 RepliesHow can I create a popup menu in vb 2008 for use as a context sensitive menu for when I right-click?
View 2 Repliesi really dont know how to express what i want in a single line so here we go. I have made a menu button which should tell the user how to use the program i have made. So when user clicks on the button a new window should appear which should have explanations on how to use my program , and some additional notes.
Now the problem is i have no idea even how to search for what i need.I know i can make a popup like MsgBox("write everything here") but is there a better way to do it because my "popup" should have a lot of text?
how to create popup messages? the ones that go up on your right hand side?...?
View 2 Replieshow to create windows popup using vb.net
View 1 Replieshow to create windows popup using vb.net
View 2 RepliesI wish to read a web page that had various frames and div elements.To start with I would like to create a routine that justs lists all of those elements values and then display each element name and its value so I know what I have and how to reference it later on.I have been using the WebBrowser control and have managed to do a few basic things so far like go to a website and auto login.
View 2 RepliesNeed Code for Save in my Text Editor. I want to save without the save dialog popup.
I have received help from Formlesstree4 on placing the name in the title of my form.
I don't want to save as just want to save if i have already saved the file and I am still working in it.
I am going to show you how to create a browsefolderdialog. All this does it popup to the user and let them choose a folder.
For this you need:
1 Button
1 Textbox
Double click your button and add in the
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim BrowseFolder As New FolderBrowserDialog
[CODE]........
This sets your textbox1.text to what ever folder is selected. After that you can do whatever you want with your selected folder. This is how it will work when you are done: [URL]
I have two lists. One list is a list of names, the other list is a list of how many times each name is found in the first list noted in the database
so...
Nick
John
Jim
Jack
is the firs tlist
10
13
13
2
is the second list. Nick had 10, john 13 and so on.I want to sort the second list from large to small, but have the index for the first list still linked to the correct amount of calls.i do it this way so I can
for x = 0 to num_of_names
string = lst_name(x) & "-" & lst_count(x)
next x
im trying to make a popup blocker type message box that pops up when a popup tries to load a page, and it asks The page [URL]is trying to open,open in a new tab?
(label)
No (button) Yes (button)
how would i make a menu appear when i click somwhere on the page,how would i make it recognise a picture, and be able to copy it to a location on the local drive?
I am writing a web page, on this web page there is a txtStart and txtEnd. Next to them I have Calendar ImageButtons. I would like to code it so when the ImageButton is clicked a calendar popup appears and when they select a date on the popup it goes away and the date is populated into the txt. Format MM/DD/YYYY. Can anyone help me? I have been looking online for hours now and only find solutions for C# users or for a seperate page all together. I am writing my code in VB and I cannot make new pages. Here is my web page code:
<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="PSInventoryRelease.aspx.vb" Inherits="DigeControlCenter.PSInventoryRelease" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="TC" %>
[code]....