Forms :: Automatically Update Value When A User Changes The Listbox Item?
Feb 17, 2009
how can i automatically update my value when a user changs the listbox item. At the moment i have a button click when the user changes the list box item and press the button the values get updated, everytime the listbox item get changed i have to repeat it click the button to update the value. I want something where automitically as soon as the listbox item selected the total value in the text box to change without clicking the button:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If ComboBox1.SelectedItem = "Seafood" Then
TextBox1.Text = 3.5 * ComboBox2.SelectedItem
[code]....
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Apr 6, 2009
i have 2 list boxes.. Qty and Cost both of these are populated from a sql database. The code is suppose to read through the listboxes and multiple the Cost by the Qty and then replace the Cost with the new result. The Cost listbox is populated with the cost of one item. The reason i am not doing this calculation in the sql query is because the sql query is very complicated filter out a bunch of stuff to show just the qty of the item...
[Code]...
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Feb 12, 2010
I am trying to go to the next item in a listbox automatically when a song finishes in my media player. I've done this in my other player, but unfortunately have lost the source code.
I have this code
If MediaPlayer1.playState = WMPLib.WMPPlayState.wmppsStopped Then
ListBox1.SelectedItem = Me.ListBox1.SelectedItem + 1
MediaPlayer1.Ctlcontrols.play()
End If
But everywhere I put it, it just doesn't work.
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Nov 17, 2010
Is there an easy way to scroll an ASP.Net ListBox automatically to the first selected Item?[code]...
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Aug 27, 2011
i have a listbox which can be updated. and another listbox with some denominations concerning the first listbox. i am populating the listbox directly from the database. each item in the first listbox have many denominations given in the second listbox. the problem is when i add new items into the database, the items of the first listbox repeats. so in ma updated listbox, the items get repeated. how can i avoid this repetition.
[Code]...
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Jul 3, 2009
On my form is a listbox. When the user clicks insert (in the menu) then I add a blank item in the listbox. The user then enters the data and then I want to update my listbox with the value(s) the user entered. The problem is that I don't see the update in the listbox, unless I reload it from the database. [Code]
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Mar 15, 2009
I've been pondering upon my idea on how to create/update a text file using each item in a listbox as lines, but I fail each time. I've searched this forum as well as my friend, Google. Still nothing.
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May 12, 2009
i'm doing a desktop application using VS2005 with MSSQL 2005. i have a problem with the where clause in the update statement while selecting the listbox item. this is the code for the listbox in load page:
[Code]....
and this is my update query in the delete button event handler: mySQL = "update Appointment set recordStatus = 'deleted'" how do i put in the where clause in when i have 4 columns in the listbox? so can i do this with listbox or have to do with datagridview?
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Jun 6, 2011
I trying to make a code to Delete and Update Access 2007 database after remove a selected item from a listbox in VB 2008. [using "Remove" button that i create] pervious i already make a button to View data from database and Remove from listbox. but i don't know how to delete and update in database.
The code i using now:
CODE:
In the database, i have ID,Name and Age (simple database)
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Jul 26, 2010
I have a listbox that contains several items (the amount of items changes depending on who is using the application). The listbox is setup so the user can select more then one item. I am attempting to submit the user selection(s) to the database. The problem I'm having is that when I loop through the array to find out what is selected, I'm only getting the first item selected (because I cannot deselect it).
[Code]...
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Apr 24, 2011
How do i make a ListBox with the addition of each item, the item be removed after 4 seconds? Added time and number of items is unknown. Other parts of the job application should not be hampered. I know that thread should I use, but I do not know.
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May 20, 2011
im having trouble with moving listbox items between several listboxes with the click of a button?
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Apr 22, 2009
Im trying to remove a certain bit of text from my listbox item..
heres my code..
If ListBox1.Text.Contains(".zip") Then
ListBox1.Text = ListBox1.Text.Remove(".zip")
End If
and when i start it and it tries to remove it, it comes up with an error saying
Conversion from string ".zip" to type 'Integer' is not valid.
ive tried, this code..
If ListBox1.Text.Contains(".zip") Then
ListBox1.Text.Remove(".zip")
End If
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Jun 25, 2011
how compare the selected item of the listbox with the database and dispaly data again in the textbox of front end
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Sep 12, 2010
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How can I count the number of items in my listbox. Here is my codes:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
myListbox.Items.Add(txtText.Text & "")
End Sub
Private Sub Form2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
txtTextListCount.Text = myListbox.Items.Count
End Sub
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Jun 9, 2009
I tried to add icons to the items in the listbox(owner drawn listbox- variable). I m able to do it. But after adding the items, according to my requirement i need to remove few items now and then.I used:Listbox1.Items.Remove("Aqua")This removes the last item from the listbox instead of the mentioned one. the same is done even if i try to remove the selected index item.
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Aug 13, 2011
I'm trying to make an aplication in wich you'll use the textbox to select an item form the listbox If the listbox has:
[Code]...
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Nov 11, 2011
I have a ListBox and a button. I want the button to be enabled only if the user has selected an item from the ListBox... How do I do this?
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Nov 29, 2010
I have a form called 'Bookmarks' that loads a bookmark file that contains a single word on one line. I have put buttons on the form for sorting this list, deleting items and changing the character case to lowercase, uppercase or Sentence Case.Now, deleting and sorting the list works fine, but when I try to change character cases,nothing happens. I started the debugger and found that my case changing code does work, but the listbox doesn't seem to update it's contents.I tried listbox.Update() and listbox.Refresh() but that didn't work either.
Here's my code for 'Set Case':
Private Sub setCase_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles setCase.Click
If bookCase = "default" Then Exit Sub
If bookCase = "lower" Then
[code]....
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Oct 27, 2010
I have a simple user control which wraps some logic around an AutoCompleteBox. This question could apply to any ItemsControl control like a dropdown or listbox though.
<UserControl>
<Grid Background="White">
<sdk:AutoCompleteBox Name="myACB" ItemsSource="{Binding myData}" />
[code].....
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Nov 1, 2010
I am creating the items in a combobox in my code behind. I am setting the display member and the value member. When the user makes a selection from the combo box, I need to get the value of the selected item. I have written some code, but when I step through it, it says that the selectedvalue is Nothing.
Here is the code where I am creating the items in the combo box:
Do While drReader.Read
cboTheater.Items.Add(drReader("TheaterDesc"))
cboTheater.ValueMember = CStr(drReader("TheaterID"))
cboTheater.DisplayMember = CStr(drReader("TheaterDesc"))
Loop
In the selected index change event for the combo box, I am doing the following:
Dim strTheater As String
strTheater = CStr(cboTheater.SelectedValue)
When I step thru the code, strTheater is Nothing
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Jan 4, 2011
I have inherited from a Windows.Forms.Listbox so I could override the OnPaint and OnDrawItem methods in an effort to highlight specific items and alternate backcolors. I am also skipping some DrawItem events to prevent flickering.Everything is working fine, however when I select items in the listbox, it looks like the font is shrinking or becoming more compressed.Then when I mouse leave, the font goes back to its normal size and appearance but the same items are still selected (which is correct). During debugging the font never changes nor do any of its properties, but it does end up looking different when the item is selected and the mousedown event just happened.
Public Sub New(ByVal relativityHighlightColor As System.Drawing.Color)
_relativityHighlightColor = relativityHighlightColor
Me.SetStyle( _
System.Windows.Forms.ControlStyles.OptimizedDoubleBuffer Or System.Windows.Forms.ControlStyles.ResizeRedraw Or
[code]....
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Feb 9, 2009
I created a user control with a listbox in it and a public property ListItem()
Public Property ListItem() As String
Get
Return _ListItem
End Get
Set(ByVal value As String)
_ListItem = value
End Set
End Property
On FormLoad I wish to fill the Usercontrol Listbox with the values that the user supplies.
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim u As New UserControl1()
u.ListItem = "hello"
u.ListBox1.Items.Add(u.ListItem)
End Sub
The Listbox does get filled.
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Jul 5, 2010
In my application I have a listbox and SelectionMode should be MultiSimple because users need to see which items they selected. In another tab we have another listbox this one should show all the selection users had done in first tab. Private Sub
[Code]....
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Jun 13, 2010
How can I do it so every time the user loads my application it will automatically (without prompt, or user selecting) upload all the files in a folder i select beforehand and add them into ListBox1
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Nov 24, 2011
I need to define some roles in my program with defined permissions. Let's say the administrator can have access only to certain features. The officer in charge to certain features and the user as well. for example, I have several group boxes and the user can access one of it only. So how i do manage these permissions? What I want do is have the roles already with the defined permissions. When I create the user and assign the role, the user should get the permission automatically.
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Oct 13, 2011
How someone would select an item from a list box and click a button and have that item go into another listbox with it's price? I seem to be stuck on this part.
Here's my code:
I want to select the first option from the first listbox and I want to put it into another listbox along with the price of that item on the same line in the listbox. I can't seem to figure out how to that.
Public Class Form1
Const dcmPRICE_STRESS As Decimal = CDec(595.0)
Const dcmPRICE_TIME_MANAGMENT As Decimal = 695
[CODE]...
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Jan 12, 2012
removing Listbox item from checked Listview item.The code I tried just errors out.
Private Sub ListView1_ItemCheck(sender As Object, e As System.Windows.Forms.ItemCheckEventArgs) Handles ListView1.ItemCheck
If (e.CurrentValue = CheckState.Unchecked) Then
ListBox1.Items.Add(Me.ListView1.Items(e.Index).Text)
ElseIf (e.CurrentValue = CheckState.Checked) Then
[Code]...
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Aug 7, 2010
Is it possible to select an item in one listbox and then display the data of another listbox with the same indexed position? I am planning a project and this is something I would like to attempt but I haven't figured out how to do it.[code..]
I tried doing the above code but instead of displaying the listbox text the message box just returned false.
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May 26, 2011
problem that i am facing is i want to add array of object as a single item in listbox. in vb6 i was using this Label1.Caption = Label1.Caption & Mid$ (strInput, intI, 1) & " " List1.AddItem (Label1.Caption) i was using label. caption to store object but not work in vs2008 because label.text only take text and left other values
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