Here is an extension method you may like for use with VB.Net 2008 / VB.Net 2010 and onwards.Instead of doing the following:>>
Dim newList As New List(Of Integer)
newList.AddRange(list1)
newList.AddRange(list2)
newList.AddRange(list3)
newList.AddRange(list4)
I used to have the following code in a module that returned a string array to my main Form and used .addrange to put them into a combobox
Friend Function getPrimeContracts2() As String()
Dim i As Integer = 0
Dim count As Integer = 0
[code].....
I have a node that is called AutoEnabled. If this is true the check state of the listviewitem needs to be checked.
vb
m_list.AddRange((From node In Doc...<Join> Select New ListViewItem(New String() { _
node.<AutoEnabled>.Value, node.<Chan>.Value, node.<irc>.Value, node.<password>.Value})).ToArray)
I know how to get the boolean, just not sure how to parse properties.
I need to get a list of registry keys. I have a key in HKEY_LOCAL_MACHINESOFTWARECBV
In there I have a couple of more keys that I need to list. After that I'll be able to get the subkeys easily.
I've looked and the only call that seems to do this is RegOpenKeyEx. Is there a better or more up to date method that I can use?
I've looked at My.Computer.Registry.LocalMachine and can only see methods to get the subkeys and not keys.
i was trying to paint a row of a listbox item but ppl said that listview item is much better than a listbox and has the ability to paint items, what i couldnt get it to work however is to add an arraylist to the listview what ive tried was the following:
datasplit.AddRange(progressload.Split(New Char() {"'"c}))
Dim items As New List(Of ListViewItem)
items.AddRange(datasplit.ToArray)
[code]....
Is there any easy way to add an arraylist to listview?i forget, is there a possibility to make listview order items like a listbox? i dont want from left to right then down then left to right then down... etc I want them to be top down and keep like that no matter the dimensions of the listview.
I'm having an issue with updating a couple list boxes in the form load procedure. I have an array created from a MySQL database, and when I try to add that array to more than one ListBox, I get: A first chance exception of type 'System.ArgumentNullException' occurred in System.Windows.Forms.dll
[Code]...
[code]...
How to Remove the Initial path from the listbox so it just displays
Film1
Film2
Was looking around google and messed about with it in college but could not find it.
[code]The scroll bar appears so some thing is being added but nothing is displayed. The items are in the annon member.
View 5 RepliesI am trying to populate an ArrayList using the elements from a DataTable. I know I could do this using Loop, but I am trying to figure out how to using AddRange.Here's my code:SomeArrayList.AddRange(SomeDataTable.Rows.Item(0).ItemArray)
The problem is that I can pass the collection except for the Zeroth element.
This is the collection I am trying to pass to the ArrayList:
1. Dog
2. Cat
3. Bird
This is what I got 1. Cat 2. Bird
I have this seperate class to fill a treeview from my database.There are over 33000 records and when this class runs, it takes almost 1 minute to finish.When i run this query from the server it takes for 5 seconds to retrieve all items.Is there a way to optimize this class?
Option Explicit On
Option Strict On
Imports System.Windows.Forms
[code]....
I want to be able to add a range and get updated for the entire bulk. I also want to be able to cancel the action before it's done (i.e. collection changing besides the 'changed').
[Code]...
I've created an app (VB.NET) where each installation of the app works with a single local database on the PC. No multiuser and no ability for the user to change databases - the database is effectively part of the app, with a fixed scema, only the data will change.At the moment the database is SQL CE. It has about 30 tables with some simple relationships between the tables.
I'm wondering if there is an alternative to SQL CE that might be faster in this scenario. Although SQL CE is excellent and easy to use, I get the feeling there is perhaps an unecessary overhead when using it for something simple - and it does seem a little slow when my app is doing complex stuff that interacts a lot with the DB. In my prototype I actually loaded the 'database' tables from text files into Arrays and developed subs and functions to perform the database searches etc. It was blindingly fast but I realised it wasn't a scaleable solution because it was an 'in-memory' database. A compromise would be to 'page' data into array when needed, but it all gets horribly complex and that's probably why some very clver people have created SQL CE !
Using VB.net, I have a namespace which I'd like to rename for the future. However, I'd also like to keep the old obsolete namespace for a time to ensure backward-compatibility for our consumers for awhile. Is there a way in .NET to have two namespaces, one ordinary and one that merely is an alternative name for the other?
[Code]...
From the WINDOWS Date & Time settings FORM is this accessible as an alternative
View 1 RepliesBelow is the code for a linked list search I have tried to implement in to searching through each of the elements of htmlelements .For some reason If element.InnerText = (item) will only work if if is only a string ("example") .Are there any other ways of Implementing the for each loop to search through my item linked list?
Original code for searching for 1 string
Private Sub block()
Dim elements As HtmlElementCollection = webBrowser.document.All
Dim word_found As Boolean
word_found = False
[CODE]...
This is the Loop for item I have tried to implement but is not working ,because of the for each loop .The value of element.Innertext = "" or null when I try to use one of the linked list item[If element.InnerText = (item)] is used and only have a value when a string is used to [If element.InnerText = (google)]
Private Sub block()
Dim elements As HtmlElementCollection = webBrowser.document.All
Dim word_found As Boolean
word_found = False
Dim item As LinkedListItem = words.Head
[CODE]...
I've encountered a problem in a application that I inherited. It contains a combo box that loads information.The problem is that there are more data that the control will hold (32767
View 2 RepliesIs there an alternative to Uri.EscapeDataString? I'm trying to upload an image, by converting it into a base64 string, but I need to use Uri.EscapeDataString on it first, and if the image is big then Uri.EscapeDataString will say that the URI is too long.
View 2 RepliesMy clients web application is using TidyCOM to clean up dynamically created XML files from a SQL database query. With this TidyCOM, they are not able to upgrade the web application to .Net 4.0 framework. Is there an alternative to using TidyCOM so that these dynamically created XML files are validated correctly?
View 1 RepliesWe heard a lot about the vulnerabilities of using QueryStrings and the possible attacks.Aside from that, yesterday, an error irritated me so much that i just decide to stop using QueryStrings, i was passing something like[code]....
View 8 RepliesMy VB application also needs to manage simple appointments in an agenda, however one user has no MSOutlook. Someone knows of an alternative calendar tool, with which I can do this?
View 2 Repliesis there an alternative for timer?
View 4 RepliesSo I've been doing a lot of reading today and apparently SendKeys isn't very reliable anymore.Does anyone know of another alternative to it for what I need:
The application works by the form being positioned over a open window, notepad, word, excel etc and it then determines what it is over, notepad, word, excel etc and then reads the file, and does some processing using SendKeys at the moment.Though I do believe I could probably change the later at some point. The problem I'm having right now is when I try to send the Alt + Tab to change focus it's working roughly 12% of the time.If you are wondering I ran it 50 times and it worked 6 of those,thus the 12%.I'm thinking that is rather unacceptable.This is what I'm using which should work: SendKeys.SendWait("%{TAB}")
XP Service Pack 3 and vb.net 2005
First off, using VB2010. I'm in the process of upgrading some applications from VB6 to 2010 and haveing a great time of it. The current application I'm working on is using Sendkeys of which I have changed over to the WSH.Sendkeys of which is pretty decent. Basically the program is copy and pasting the current open file, reading some data and saving it as a different file type. It also has to change xls files to csv and then saving it to the format as well as a smiliar thing with word. Thus the reason for the copy and paste as it's changing the extension to a dot date (for example, test.830).This is the flow of how it works for a text file (most basic)
1. changes focus to notepad
2. Select all Copy to ClipBoard
3. Open Programmers File Editor and a blank file
4. Paste in text
5. Save as code.date extension to the directory
Excel files obviously have a few extra steps.
I need a good alternative for System.Web that is included in the .NET 4 Client Profile. Currently all of my frameworks are included in the client profile, except System.Web. What is a good alternative?
View 7 RepliesI have an MDI Windows Forms application (.net 2008) that allows the user to associate various file types with the application. I currently do this with a registry entry something like this, that causes the application to load and access the file name via the command line:[code...]
In the pre-.net version of the application, I used DDE (ddeexec in the registry). If an instance of the application was executing when a file was double-clicked in Windows Explorer, it would open the file without starting up a new instance of the application.
Now that DDE has been deprecated by Microsoft, what is the best way in .net for an executing MDI application to open an additional file when the file is double-clicked in Explorer, as opposed to starting a new instance of the application?
I'm running Visual Basic.net. I used to use the INKEY command, available in older DOS versions of Basic, to allow the user to change the flow of a program by touching a keyboard key. It seems to be available only in Visual Fox Pro. Is there an alternative for Visual Basic?
View 4 RepliesIf I wanted to make changes in page site (using with WebBrowser, and only the user will see it) I would do it:
Dim Rstring As String = WebBrowser1.Document.Body.InnerHtml
Rstring = Replace(Rstring, "Some Text To Replace", "<B>Some Text To Replace</B>")
WebBrowser1.Document.Body.InnerHtml = Rstring
In my project i am using begin transaction commit or rollback changes. but this causes lock to the tables in that particular functionality.
So if the any other user does any other functionality those locked table are not available until the transaction is completed. I want to know if there is any alternative to transaction which insures data security but the tables are not locked out.
I assume that this is not possible.Could somebody please suggest an alternative way to display rows from a DB in a nice way. (with word wrap)
View 10 Repliesin my database i have an admin form, where it allows you to do admin stuff.Example: Allows you to enter price per membership, and change it.Problem i'm having is how would i save it, since all previous files had more than 1 records, so it would be in the form of:
FilePut(1, OnePerson, NumberOfRecords + 1)
Since this file will only cosist of one record, i don't know how i would save it.i tried FilePut(1, OnePerson, Index) But it doesn't work.