I have a listbox of the 50 states. I have one textbox and as I enter the first few letters of the name I'm supposed to use the SelectedIndex property of the listbox to display the appropriate name. I am not very good at programming at all. Is this a quick and easy thing to do and if so how is it done?
View 5 RepliesI click on items in my listbox and then hit a submit button, but when istep through my button_clicked code it doesn't detect any selectedindex. All controls are in the same form and there are no panels. Why can't I detect what items were clicked on in the listbox?
View 2 RepliesI need to make events based on which index is selected in the listbox. I was wondering if there was an inbuilt function of if I need to use If conditions.
vb.net Private Sub ListBox1_SelectedIndexChanged(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged
That code will run when the selected index is changed regardless of which index. But I need each index/row to run a different event. I know I can use If conditions to get what I want, but I expect it'd be a lot more efficient with an inbuilt method.
I have a listbox and two buttons. Each of my button is labeled UP and DOWN. When I press UP, the current item in my listbox will be moved one level (or index) up and when I press DOWN button the current item goes one level down. I have been trying to manipulate the selectedindex property but it isn't working.
View 11 RepliesI have a listbox that contains numbers that vary from 0 to 99. My problem is when the number in the listbox is 0, listbox1.selectedindex will not return a value. So I cannot use removeat(x) which works for all other numbers. Can anyone give me an idea on how to do
View 4 RepliesI've got a simple upload form. Here's my code:
<form id="Form1" method="post" enctype="multipart/form-data" runat="server"
<asp:label id="lblMsg" runat="server" CssClass="msg" />
<span class="msg">Select Gallery:</span>
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I have a form with a dropdownbox two listboxes and two buttons on it. I removed a "select" button as I just used the DropDownList1_SelectedIndexChanged, but the event would not fire until I used the suggestion from:Why DropDownList.SelectedIndexChanged event does not fire?
It involved changing the AutoPostBack='true' and EnableViewState="true" properties
So now the DropDownList works but with the two listboxes, the SelectedIndex stays as -1 and does not change even when selected.
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I think it has something to do with post backs, page_load or the selectedindex changed event of the listbox, it worked perfectly before I made the modifications.
It appears that I cannot assign the selectedindex for a databound listbox if it has no parent, but I can do so if I have populated the list "manually" from the same datatable. In my code example, the "if" line toggles between loading a list via data binding and loading a list "manually" (both use the same data table). In each case I attempt to set the selected index afterwards. With manual loading, the selected index is set; with data binding, an error is thrown (which can be avoided by assigning the listbox a parent, but the "manual" equivalent doesn't need this). Is this a bug?
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very simply i have a listview that has 3 colums date - filename - url when the selectedindex changes on the list view i want it to be displayed in my picture box.
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First of all, I'm a somewhat-experienced VB3 Developer, and I'm trying to convert a VB3 app to VB.NET.I got the programming guide (http:url....) by searching the web.The problem I'm having is the syntax for .NET is way different than VB3, and that's OK, but finding the correct syntax is very difficult.I'm trying to eliminate duplicates in a ListBox:
When I access the Programing guide, I see that:
ListBox.SelectedIndex Property
Gets or sets the zero-based index of the currently selected item in a ListBox.I also have Murach's and Stephen's manuals, and they say the same thing.Visual Studio converted The old .ListIndex to a VB6 Function:
If VB6.GetItemString(PlayList_ListBox, I) = VB6.GetItemString(PlayList_ListBox, I + 1) Then
This is Try #1. It generates: VB6 is not declared. It may be inaccessible due to its protection level.Then I read that VB6 is only for converting old code.So then I tried SelectedIndex:
Dim I As Short [code]..........
In a VB.Net application, how can I either: Find the dropDownList selectedIndex position of something just added to a database.Have a form restart with the most recently-added entry showing in the DropDownList, by way of modifying the inline SQL query to display by date/time added
View 3 RepliesI have a simple application that take data of out a text file line by line and add to a listbox, and listbox display every single one. I want to display only 25 items at a time, such as every time I add a new item to listbox, it bumps off the oldest item displaying so the listbox only show 25 lines at a time. How do I accomplish this task?
View 4 RepliesI have a problem with getting my text to display when I hit the display button after inputting certain variables in the other text boxes. Here is my coding so far, been working on for days to get this far. I'm new to VB.
View 12 RepliesI'm trying to display in a list box a two dimensional array using format string.The information for my array I'm getting from an external file.this is what I have, and I don't know how to fix this.
Sub DisplaySeatChart()
Dim fmtstr As String = "{0, -15}{1,-15}{2,20}{3,-15}{4,-15}"
For i = 0 To 9
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I would like open form and only display data in listbox without ability to select record. How to do it?
View 1 RepliesHow would I take all my listbox Items (can be different every time) and put them in one single string with ControlChars.NewLine between each of the items.
View 11 RepliesMy aim is to choose a value from Listbox1 and on Listbox2 I would like to display the corresponding value from a table in my database. I mean, when I select Product A from Listbox1 (which is getting its values from row "Model" in my database table), I should see its price on Listbox2 which is available in the "Price" row of the same table (and also manipulate this price in different places for calculation etc.) . I am not sure if the best way is using "databinding.filter".
Here is the code I have but I cannot making it work:
Dim dtCOP As New AmetailorDataSet.COPDataTable
Dim adapterCOP As New AmetailorDataSetTableAdapters.COPTableAdapter
adapterCOP.Fill(dtCOP)
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A small note: my aim was using a Richtextbox instead of Listbox but I am told that Richtextbox is not suitable for using with datasources.
I am trying to put colored text into a list box. I use the following
Private Sub ListBox1_DrawItem(ByVal sender As Object, ByVal e As System.Windows.Forms.DrawItemEventArgs) Handles ListBox1.DrawItem
e.DrawBackground()
Dim myBrush As Brush = Brushes.Blue
Select Case e.Index
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This works fine and dandy as long as I use 8 pt font, but when I change the font to 20 I get the following: How can I get the list box to display colored text in a large font?
I have in my database a smallint field with 2 values 0/1,is it possible to bind that field to a combobox with 2 values "Yes" "No" without creating another datatable for Yes/No values or to modify sql query to bring Yes/No instead 0/1 something like binding to SelectedIndex ?
View 9 RepliesIs it at all possible to reset the existing set selected index properties for a combo box?or example if the user selects the first selected index option an action occurs, the combo box then loads in another set of options and the selected index properties are then resetIf the user then selects the first option in the combo box again, it will perform a different action to the previous one.
View 2 RepliesIs 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.
I enter Names and scores from a text box. Once i press "show me the array" my listbox gets populated with the names and scores. [code]...
View 14 Replies1 when my listbox returns resaults it only brings back 10 how do I set it to return lets say 500
and question 2 is when I click on my links in listbox it's not opening webpage as I would expect it...
This is my code
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my homework question is to display the selected items from a listbox (multi-extended) in a label. I need to display all the selected names in a label. the simplest most uncluttered way of doing this. This is what I've got but it doesn't work.
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I can't get anything to display on the list box that I created named "depreciationListBox" I have been working on this project for a while and I am quite stumped.
Private Sub displayButton_Click(ByVal sender As Object, _
ByVal e As System.EventArgs) Handles displayButton.Click
Dim cost As Double
Dim life As Double = CDbl(lifeListBox.SelectedItem)
Dim period As Double
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how can i display all my process in a listbox , and close a process from selecting it from the listbox ?
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my design is attach! Attached image(s)
So suppose there is a string: StringRamdom and you display it's contents in a listbox.
so listbox.Items. Add(StringRandom) but it should be displayed as A, B, C
not
A
B
C
[code]I have a listbox, 4 radio buttons,a textbox and a button. I want the user to type in a number into the textbox, click on 1 radio button(multiplication) and then click on the button to show the number entered into the textbox multiplied up to 3 times. [code]
View 1 RepliesHow cau I display the very last value of a listbox in a textbox? i.e. if there is 3 items in the listbox it displays the 3rd, if there is 5 items it displays the 5th.
View 7 Replies