Add Item To CheckedListBox At Index = 0?
Nov 30, 2011
1.) I have a CheckedListBox, ListBox, Button, and ComboBox on a form. There is two ways users add items to the CheckedListBox listed below.
A.) The user will select one item in the ListBox and click the Button and that selected item is added to the CheckedListBox (see code below).
Private Sub Button_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button.Click
' ensure searched analytes checked listbox always contains (Select All) at the top if analytes exist in the list
If Me.CheckedListBox.Items.Count = 0 Then Me.CheckedListBox.Items.Add("(Select All)", True)
[code]....
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Feb 4, 2010
Is there a Tag for an Item in the CheckedListBox? Or something similar? I would like to be able to store and ID associated with the item that I'm displaying.
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Feb 12, 2011
I'm having some difficulty with a sorted & grouped listbox in WPF vb.net 3.5 that has an items source bound to an ObservableCollection.
What I want to be able to do is to retrieve a piece of data from the ObservableCollection items source depending on what item in the listbox the user has selected.I've almost got it working but because the listbox is sorted it does not match the index of the items source.
[code]...
As I previously mentioned, because the lstBox is sorted and also grouped the index's don't match up.Does anyone know how I can get the correct information I want from the List Source depending on the selected item in the list box?
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Mar 28, 2011
I have an application that uses a treeview and a checkedlistbox to allow a user to navigate and enable/disable printers on their computer. Everything works great.One of the program requirements is that the user interface must visually indicate which printer is the users default. The obvious best way to do this is by changing the font of the item in the listbox that matches the users default printer. From my research, it seems that I will have to subclass the checklistbox and add the drawmode property to the new control. I've got no idea how to do this with a checkbox and make it actually work!
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Sep 11, 2010
Working the first time with a CheckedListBox.
Question: is it possible to disable an item of the box so you can't change the value of the checkbox.
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May 10, 2010
Given a CheckedListBox instance, how can I accomplish that a maximum of one item can remained checked?
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Jan 7, 2010
Given a CheckedListBox instance, how can I accomplish that a maximum of one item can remained checked?
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May 3, 2010
how do i add columns to a listbox??
And Checkedlistbox add and edit more than 1 data per item. So if you take a look at Cheat engine it got 3 data per row. 1: the checkbox, 2: the item name and 3 the value i want to change if i doubleclick (all this in same row)
So if you take a look at A cheat engine Video at you tube you can see the checked listbox that you can freeze things and change values so more thann 1 data.
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Jun 12, 2009
I got this so far but I cant get it to the next item and stop, then when the progressbar reaches 100% go to the next....
'Declare a switch variable
Dim startAuto As Boolean = False
'SaveButton[code......
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Mar 10, 2010
I wanted to put a checkedlistbox in a groupbox with just one item showing and in the mouse enter event show more items by making the height of the checkedlistbox bigger. The problem is, if it gets to a certain height, it disapears at the bottom of the groupbox because thats its parent.
Is there a way of it showing beyond the boundaries of the groupbox ?
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Sep 30, 2011
I want to check a checkbox of the selected item in a checkedlistbox but option strict disallow it. How can I do it without turning it off?
Dim clb As CheckedListBox = DirectCast(sender, CheckedListBox)
clb.SelectedItem.checked = True 'late binding error
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Jan 30, 2011
With my CheckedListBox, I am trying to get the text of each item that is checked and add it to a listbox, but it does not get everything currently checked. If I have 3 items checked, it only adds 2 items. If I deselect an item, it appears.
lstOpCodes.Items.Clear()
Dim OpCodeCollection As CheckedListBox.CheckedItemCollection
OpCodeCollection = chkOpCodes.CheckedItems
For Each opcode In OpCodeCollection
lstOpCodes.Items.Add(opcode)
Next opcode
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Dec 24, 2011
I want to adding checked item from checkedlistbox to my combobox, but i have a little problem here.Combobox only show 1 item last checked.This is my sample code.
If CheckedListBox1.CheckedItems.Count <> 0 Then
For i As Integer = 0 To CheckedListBox1.CheckedItems.Count - 1
cbCheckedItem.Text = CheckedListBox1.CheckedItems(i).ToString
Next i
End If
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Jun 12, 2011
Having some issue trying to programmatically check items in a CheckedListBox.What i am trying to achieve:
1. Pull Staffnames from database
2. Separate each staff member via delimiter
3. checked = true for each item in StaffCHKlist where staffnames = existing StaffChKlist item
i have had a few goes, but cant seem to achieve, this is where i am currently at:
Dim sl As String = ds.Tables("Consignment").Rows(0).Item("StaffName")
Dim tokens As String()
tokens = sl.Split(",")
[code]....
which errors with:
"List that this enumerator is bound to has been modified. An enumerator can only be used if the list does not change."
I have been trying to understand, would programmatically checking an item in a checkedlistbox be classified as list change?
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Nov 17, 2009
1) Can I set a CheckedListBox item to be disabled programatically so that it cant be checked?
2) Why doesn't the SelectedIndexChanged event fire when I check or uncheck an item programatically? But it does if I do it manually...
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Mar 18, 2011
How can I get an item of a specified index form listbox in a messagebox without selecting any item in listbox.
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Aug 7, 2009
I am able to get the index of items added to the BindingList. When I try to get the index if the deleted item I get the error Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index
Here is my code
Private Sub cmdRemove_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdRemove.Click
For i As Integer = 0 To _assignedSelection.SelectedCount - 1
Dim item As Jurisdiction = CType(_assignedSelection.GetSelectedRow(i), Jurisdiction)
_list.Remove(item)
Next
End Sub
Private Sub list_Change(ByVal sender As Object, ByVal e As ListChangedEventArgs) Handles _list.ListChanged
[Code]...
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Mar 28, 2011
i am trying to find a way to add something to one of the columns in my listview. The way my code is setup is like this:
While dr.Read()
If dr.IsDBNull(12) Then
objItem = lstMaster.Items.Add("nothing")
[code].....
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May 15, 2009
Is there any way to get the index of the changed item? I couldn't find any examples.
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Aug 19, 2010
In simple terms, I want to compare the value of a databound listbox display member with another string. However; I need to convert the listbox databound items to an array first as I may have to do 1,000's of comparisons on this.
I have a databound listbox from a sql server table that populates fine. I'm trying to retrieve the display value of a listbox item without selecting the item. My goal is to compare items in listbox1 with items in listbox2 and if item is in listbox1 matches an item I want to load into Listbox2, then I do not add the item to Listbox2. Listbox 2 is not databound but contents I'm loading come from a datatable.
So, I iterate through the items in listbox2's datatable but as I'm adding the items from the datatable to the listbox2, I check if the item exists in listbox1. The data that is being compared is the Displaymember of Listbox1 and a string value I want to manually load into listbox2.[code]....
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May 26, 2009
I am using the stack class to store a collection of lines. <code>Dim myStack As New Stack(Of Line)</code> I want to find out what the index is of one of the lines that are in the collection and I'm not sure how to do this. i tried to use array.indexOf:
[Code]...
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Mar 10, 2010
I'm having a small hiccup in the following code. Basically what I have going on is a play button that will play the selected item in the listbox and once the button is clicked then the next item in the list is highlighted and waiting. This works exactly like I want it but the only issue is when it gets to the last item in the list it want play it.
Private Sub ButtonPlay_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ButtonPlay.Click
If (PlaylistBox1.SelectedIndex + 1) <> PlaylistBox1.Items.Count Then
AxWindowsMediaPlayer1.URL = PlaylistBox1.SelectedItem
[code]....
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Apr 9, 2010
How do I remove an item from an array at a specified index? This code copy's the index and then adds the indexes until it gets to the one you want to remove, skip it, and try to continue. But I get so many errors. From being out of the bounds of the array, to just being null for some odd reason. [Code]
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Jan 31, 2011
How do i return the column index of an item within a WPF Datagrid, when I click on a cell I'm using Visual Studio 2010/VB.Net?
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Apr 19, 2011
I want to perform some simple auto-formatting to the cells in my GridView. So far, I have the following code:
Private Sub gridviewRefreshPanel_RowDataBound( _
ByVal sender As Object, _
ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) _
Handles gridviewRefreshPanel.RowDataBound
[Code]...
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Jun 30, 2010
In a list of timers, how do I determine the index of the item that elapsed without having to iterate the collection as shown below (e.g. can I pass a paramater to OnTimedEvent, or can the collection raise an event to say which item fired???). It's the individual timer index that I need as I'm using it to refer to something else.
(I wont know how many items I'll have in the list in advance so I can't create an individual event handler for each timer - I don't think I should even if I did).
Public Class Form1
Private _timers As New List(Of System.Timers.Timer)
Private Sub Form3_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
[code]....
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Jan 31, 2011
I have set my listview multiSelect = false, view = details , FullRow select = true , HideSelected = False. I have one coulumn which has 10 items . I want to get the selected row index in vb.net
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Feb 6, 2010
I have a combo box setup with 4 items, with indexes ranging from 0 to 3.
Later in my code, I need to do a certain event depending on what is selected. To do this I thought about comparing what the index of the selected combo box item is, because integer comparison is faster than strings, right?
how I can grab the index of the selected value?
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Sep 8, 2009
How to put a tab index for each item in the radio button list?
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Dec 27, 2009
If you wanted to remove a listview item, then reinsert it at the same index it already was. Is this possible?
Because all i know how to is reinsert an item at the top.[code]...
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