ListView Not Auto Creating Scrollbar With Too Many Items
Jun 10, 2011
I'm currently housing a ListView on a single form, and then adding buttons to this ListView via code-behind. Everything works wonderfully except the fact that when there are too many items added to the list it doesn't create a vertical scroll bar? I can simply add as many buttons as I want to it without it creating one? Here's the code that adds the button to the list: [Code]
Im trying to fill a ListBox with more than 65542 items in a Visual Basic .NET 2008 project. The ListBox seems capable to collect 100000 articles, but when i scroll through the list the scrollbar works till the 65500th listing (more or less) then it just jumps upwards.The weird thing is that I have two version of the same project which have different behaviors. One (tmp.zip) scroll fine with the scrollbar, but it doesn't with wheel mouse button.The other (listBox.zip), the scrollbar goes mad but mouse wheel seems ok
listobox.zip: is a new project created within VS 2008 tmp.zip: is a cleaned up form imported in VS 2008 from an early version (VS 2003?)
is it possible to change the width of the vertical scrollbar in a listview .When the scrollbar width is bigger, its easier to operate by hand on a touch screen.
I've been using 'GetScrollInfo' to find the position of the scrollbar on a ListView and I can detect when it hits the bottom of the list. Is there anyway I can raise an event when the scrollbar changes? At the moment I have it working by using a timer but I would rather if possible create an event to fire my routine.
So with the stock Textbox, I set the Scrollbars property to Vertical. This is great if the text in my box never changes; I can scroll up and down while the box sits still. If I'm running a background operation that logs output to the box though, the scrollbar resets itself to the top every time I append text to the box.
I know I can set the Textbox.Selection property (or use the Select method) to reposition the carat in the textbox, make note of that position in a variable, then append text, reset the carat, and use the ScrollToCarat method to reposition the scrollbar where it belongs. That's a really (ridiculously) long way around. Anybody know if there's another/better way of holding the scrollbar position, short of actually building a custom control (or using a Textbox and a separate Scrollbar)? It never hurts to try. In a worst case scenario, you'll learn from it.
i made a media player program and i am having many problems! the main issue is that i have a listview that displays music playlist, how can i get it to navigate to the next item after the clicked one is over that way users don't have to click on the next one to continue their playlist?
How can I save ALL of the items in a listview, items that were added by the user? I tried application Settings and tried creating a settings file but there is not a settings option for listview items.
Im trying to print out all the items/sub items of a listview into one string.
here is the code i have:
For Each lvwItem In ListView1.Items ' Print the subitems of this particular ListViewItem For Each lvwSubItem In lvwItem.SubItems
[Code]....
How do i just print out the value (MyItem1) without the "ListViewSubItem: {}" part? I know i can use a string function to remove this, but id rather not
I have the code below and when I try to populate the listview it populates all of the listview items but only the first subitem. No clue what I've got wrong.[code...]
Now I have my application and an installer project, which can install my application. how to make my application auto-update (from my web server) like a smart client. I've looked into ClickOnce, but it does not appear to be suitable as I cannot do any custom installation steps. My application needs to create folders and copy other files from the CD to the hard drive, which I don't believe ClickOnce supports. On the other hand, the Windows Installer does not natively support any sort of auto-updating. So what do I do?
I have read that it is possible to combine both technologies, but all my research into this has turned up nothing of use.
I've looked into the Updater Application Block (Version 2.0), but I'm not sure if this is what I'm looking for? I'm using Visual Basic 2005 and I'm not sure if the Updater Application Block supports .NET v2.0. In fact, when I tried to install the Enterprise Library, it said I need .NET v1.1??? Even if this is a possible path, I'm really quite lost when reading through the documentation as nothing seems to point towards practical examples, especially in Visual Basic.
I've also had a look at the System.Deployment.ApplicationDeployment class, but it seems as though this only works with ClickOnce applications. However, since I can't seems to use ClickOnce in my situation, this does not seem like a viable option. Is it possible to use System.Deployment.ApplicationDeployment outside of a ClickOnce application?
I'm really quite lost as to how other people produce custom installing applications that have auto-updating features. Virtually every modern piece of software does it, but I cannot seem to find anything on the web that points me in the right direction of how to achieve this with Visual Basic 2005.
Well i this code in a timer: listbox.index += 1 Witch works fine but when it gets to then end of all the number it gives me a error saying no more items to select. So how do i make it so that when it reachs the end of the list it starts over and back to the top of the list?
I want to create hypothetically infinite array lists each that can hold hypothetically infinite items. The name of the array list is "arraycalc". How can I perform a procedure that will create a new array list called "arraycalc1"... the next time after that the procedure is run and a new array list called "arraycalc2"...and so on and so forth.
I am trying to get vb 2008 to send an automated Email to a specified Email address with a new password code. Unfortunately one of the final few lines of code creates an error when run and I'm not sure why.I am using a googlemail account to send the email and I'm using the smtp port number for gmail so I don't know whether that will be a problem as I didn't know where to find one for googlemail (got the gmail one off a tutorial).
how to create a Auto repeated Mouse movement.I wanna create a Form, with a button "start 01" and "start 02",so if I click on "start 01" button, and i open my other applications, and once I hit the F1 button (on my keyboard) the mouse will auto move from point A to B, and it will keep on repeat until I hit the F12 button, then it will stop auto moving.and if I click on the "start 02" button, and II open my other applications, and once I hit F1 button (on my keyboard) the mouse will now move from D to E, and it will keep on repeating it until I hit the F12 button, then it will stop auto moving.
I want to create an application similar to "Windows Live Writer"(that is for blogs) but this one is for forums..This application is solely for my personal use only.I would like to have a facility where I have 2 text boxes--> One for username and one for Password along with a submit button.On clicking Submit I need a msgbox to display whether Login Succeeded or Failed, and depending he should be directed to create a new post in any particular section of that forum..Consider for now,the forum I am trying to do this is, vbforums.com..Its just like OFFLINE creating and then posting..I have already created forms,BBCode Editor, GUI for this purpose and want to start with Communication coding.I tried using Http request but based on its response I dont know how to distinguish between valid user and invalid user.
I have 4 Columns in a ListView. The first one is called Serial No. Every time I populate it, the serial number increases automatically. After populating the ListView couple of times, I select any row(s) and remove it. When I remove one or more row(s) from the listview, serial numbers stays same. I want the serial numbers to be fixed automatically when I remove any number of row(s). How can I do that ??? Here is my code -
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim Str(4) As String Dim newItm As ListViewItem[code]....
Code: Private Sub DragDropListView_MouseMove(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles Me.MouseMove If KeyItem Is Nothing Then If tmrLVScroll.Enabled Then tmrLVScroll.Enabled = False
[code].....
but I can't get it to auto scroll vertically for largeicon, smallicon, and tile listviews.
I am using the following code to number the listview in vb.net.
vb.net While myListData.Read ' using ExecuteReader Dim i As Integer For i = 0 To lvList.Items.Count - 1 lvList.Items(i).Text = CStr(CInt(i) + 1).ToString() Next i lvList.Items.Add(Trim(CStr(CInt(i) + 1).ToString)) 'col no. 1 ' adding sub items from database (mysql) ' ........End While
The output problem is as follows
Col 1 1 2 3
[code]....
There is some problem with the code. Should i try the padleft or the "D2" ?
I have a textbox in form1 and I want to enable the autocomplete with the items in Listbox1 in Form2. For example if the users enter in textbox1 something that is similar to any of the items in Listbox1, I would like it to be shown in a list below the textbox. ( What a browser does with already visited pages )
For example: test is a variable test = 1 How do I make that if test = 1 that a listbox fills with the items: red, blue, green, yellow? If test = 1 Then listbox1....
My idea is that i want to create a auto-shutdown app that will allow me to auto-shutdown after downloads have completed using IE6. Third part download managers have these built in for example however i would like to make one for IE download dialog. Any ideas on how do start. Detect when a download is active, set time, autoshutdown etc.
I'm writing VB code in Visual Basic 2008 Express and can't seem to figure out how to create a new instance of Excel with VB code. The most common answer appears to be setting an object variable to 'Excel.Application', but that gives an error (Type 'Excel.Application' is not defined).
Im trying to create a diary system that on click event of the built in calander in vb.net opens the current diary entry for that day. i am using the my.settings variables to store the entrys the problems i am having is how to create a my.settings variable automaticly if one dosnt exist for that date (will be using the date of the clicked day as the name e.g. 10/5/2011)
So basicly i want the user to be able to click through the dates on the calander and the entry be displayed in a text box next to it, blank if nothing is there and the user can edit/save them after just need the code to auto create and i guess how to search the my.settings im quite new to using this storage, i normally use text files. the pic shows the program so far, it has one diary entry but it has no relation to the date. the label is linked to the calander also , displaying the selected date.
im trying to create a diary system that on click event of the built in calander in vb.net opens the current diary entry for that day.i am using the my.settings variables to store the entrysthe problems i am having is how to create a my.settings variable automaticly if one dosnt exist for that date (will be using the date of the clicked day as the name e.g. 10/5/2011)so basicly i want the user to be able to click through the dates on the calander and the entry be displayed in a text box next to it, blank if nothing is there and the user can edit/save them afterjust need the code to auto create and i guess how to search the my.settingsim quite new to using this storage, i normally use text files.the pic shows the program so far, it has one diary entry but it has no relation to the date.