I have wrote a code that should write some text in a xml file and add a item for every file in the fileadddialog to the listview. But i can't make it to work, the writing works, both with multi-select and single files. But it only add the Movie to the listview if the file don't exists (read the code to understand).
Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click
fileaddDialog.ShowDialog()
If DialogResult.OK Then
The only way I know how to put an item in a list view is to make a new item, which is the first column, then add a sub item for the columns after that and the item is placed in the row.For this Project I am wondering if there is a way to easily add items to individual cells, based on the column and group, not add items in a row at a time.
Something like the following image is what I need to do with code. To get this I manually added the items in the designer. But the logic bases where to put the class on the other classes in that time block (Mon at 8-1030am is one block). However if we have to add them a row at a time it throws off our logic and thought process.
How can I get items in listview? I know how to get the current item if selected but Im trying to put it in a loop where i need to get my three row items there.
I have 3 columns and I want to get there items and insert it in entry string.
This code is wrong
Dim a As Integer = 0 For a = 0 To ListView1.Items.Count columname.Text = ListView1.FocusedItem.Text(a)
I've used the same method to add items to a listview before but for some reason they're not showing, I even just tried a test:
Dim row As New ListViewItem row.Text = "test" row.SubItems.Add("test") lstvwHistory.Items.Add(row)
in the load and that doesn't show up.Here is what I am trying:
gameDate = HistoryDS.Tables(0).Rows(0).Item("gameDate") frmGameHistory.NewGroup(gameDate.ToShortDateString) For Each row As DataRow In HistoryDS.Tables(0).Rows
[code]....
I walked through the code having a message box pop up every time an item was added with the count and it goes up as it should, nothing throws an error, and the item has all the correct parameters. I commented out the making a new group and just plain add the items and it still didn't show. I tried the lstView in all the kinds of views (detail, small icon, etc.)
I have a listview in details mode with multiple columns. I want to be able to temporarily hide entries. I know the old Listview.Items(x).hide = true doesn't exist (from research).I'm wondering if there's a way to create a temporary list of every item NOT to display, remove them from the listview, then when I want them back, just re add them from the list
I am making an application that loads lots of data into a listview. It takes a while to add the data (over 2000 items).Is there a more efficient way of loading these items rather than the standard way? Maybe a quicker control or something.
I'm gonna add x number of items to a listbox in form #2 form form #1. When I click the button it opens Form #2 and then I tried this code (which makes the form freeze): Dim qwe As Integer = 1 Do Until qwe = regKey.GetValue("Count") + 1 PrMaker.ListView1.Items.Add(regKey.GetValue(qwe)) qwe = qwe + 1 Loop The regKey.GetValue("Count") is a registry key which contains a integer (unknown). What is wrong, or is there another, better way, of doing this?
I am using the following code to try to grad whats in the listview on another window:
Private Declare Function SendMessage Lib "user32.dll" Alias "SendMessageA" (ByVal hWnd As IntPtr, ByVal wMsg As Integer, ByVal wParam As Integer, ByVal lParam As IntPtr) As IntPtr
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...]
I am looking for the a simplest for of code where I can add some items to a listview. i have 4 text boxes and 4 columns in a listview.. what could be the code to put 4 values as a single row in list view.. i managed to put put first textbox value as listviewitem (the first column) , but rest 3 has to be added as subitems... i am stuck here..
I am trying to add get items from an xml document and load it into a listview. I keep getting an System.OutOfMemory exception on the line projects.Add(project). What am I doing wrong and how do I do it correctly? I got this code from murach's beginning visual basic.NET. When I run this it adds random spaces between the items in the listview
How can I get items in listview? I know how to get the current item if selected but I am trying to put it in a loop where I need to get my three row items there. I have 3 columns and I want to get there items and insert it in entry string.
This code is wrong Dim a As Integer = 0 For a = 0 To ListView1.Items.Count columname.Text = ListView1.FocusedItem.Text(a) columntype.Text = ListView1.Items(a).SubItems(1).Text columnscale.Text = ListView1.SelectedItems(a).SubItems(2).Text entry = entry + columname.Text + " " + columntype.Text + "(" + columnscale.Text + ")" + vbNewLine + "" & _ "" Next
But if I go into the properties of the ListView1 and look at the collection for the Items there is no place to set the Name.I can code Me.ListView1.Items(1).Name = "Name" and then I can code Me.ListView1.Items("Name")Where can you set the "Name" of the Items in a ListView?
I am trying to search through listview in VB.net 2008. It works fine with small list, but when the list is big ( around 25000 rows), if I search multiple items , it fails saying that index is not valid. Obviously what I understand is , it it tryiong to remove an index does not exist. But I am unable to figure out where exactly it is going wrong.
PS : while it is doing search through the entire listview, I am incrementing index = index+5 becasue I want the next 5 rows to be in the selection state as well.This is the code Private Sub TextBox1_KeyUp(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles TextBox1.KeyUp If (e.KeyCode = Keys.PageDown) Then
I'm using a vb.net backgroundworker thread for processing and I need to periodically add items to a listview (with multiple columns) during the thread processing.I can easily use the following code for delegating the task to add an item to a listview, but I can't figure out how to additional info to other columns on the same row.he thread, I'd execute the following to trigger the invoke to add to listview:AddListItem(ListView1, filepath)Here is the delegate code, if someone can show me how to add the t
Delegate Sub AddListItem_Delegate(ByVal [Label] As ListView, ByVal [text] As String) Private Sub AddListItem(ByVal [ListView] As ListView, ByVal [text] As String, Optional ByVal [text2] As String = "")
I have a ListView which might contains a lot of items, so it is virtualized and recycling items. It does not use sort. I need to refresh some value display, but when there are too many items, it is too slow to update everything, so I would like to refresh only the visible items.How could I get a list of all currently displayed items ? I tried to look into the ListView or in the ScrollViewer, but I still have no idea... the solution must NOT go throught all items to test if they can be seen, because this would be too slow.I'm not sure code or xaml would be usefull, it is just a Virtualized/Recycling ListView with its ItemSource bound to an Array.
I have a small application. When I click on a ListView row to Edit the details populated from the MS Access DB, I have the Else statement being executed all the time. Initially the code is attached behind a button named Edit. I have a Refresh button also which is clicked before the Edit button is clicked. Thus I just don't want to click on the OK button on the message box generated from the Else part. I just want to switch the Edit option between the ListView data when the ListView is item is clicked.[code]...