Asp.net - ListBox Items Not Selecting ?
Jun 27, 2011
I have a simple ASPX page with a listbox and a button. Listbox has about 8-10 items in it. After the user selects an item (listbox is multi-select) and clicks the button, I'm iterating through the items to get the selected one like so:
For Each Item As ListItem In lstLetters.Items
If Item.Selected Then
Dim LetterID As String[code]....
When I step through the code, I select the first item from the listbox. I setup a watch on the 'Item' variable. The code will iterate through each of the items -- but Item.Selected always reads 'False'.I double-check the page, and sure enough my item is selected on the form.What the heck is going on?
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Oct 31, 2009
How do I express, in the code, all the items in the textbox? So far all I could come up with was this:
Dim x
Me.Listbox1.Items.Item(x)
But it isn't working.
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Aug 15, 2010
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?
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Jun 27, 2012
Should: take items and fill checked list box with possible tours that the company can receive (this is done and working) i.e. for 2012, Titleist gets X, Y, and Z; so there are two checked listboxes for 2012: lvl 1 and lvl 2, username specific Both have lists "X, Y, Z" in that order, lvl 1 and 2 is for the permissions level, 1 is lvl 1 and 2 is alex's 0 marking for full details code goes through and checks if lvl 1 is marked, if so it checks the tour in the lvl1 check box if zero is marked, finds the tour in lvl 2 and lvl 1 and checks both items if a tour exists for company but not for the user, the checkbox exists but neither is checked
[Code]...
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Jan 27, 2012
I know that I can select an option in a listbox within my HTMLDocument (which refers to a webbrowser control's HTMLDocument) using SetAttribute. For example:
htDoc.GetElementById("lstCountries").SetAttribute("value", "88")
However, I can't figure out how I can select multiple items within the listbox. When I call SetAttribute repeatedly, it always unselects the old one first.
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Apr 28, 2009
I am using VB.NET (version 2008). I have two types of items populating in a listbox (checked listbox). For example: lets say one is type "A" and other is "Type B". Their names maybe same so if the user sees those items in listbox then he won;t be able to determine their type until he click on them and checks out its properties. I wanted that I add each item to listbox and colour them so that blue for example means type "A" is there and red means the other. So this way I will be able to know at a glance that how many item of what type is present. I guess it may not be possible to do that in a standard checkedlistbox. I am also using component factory's krypton controls which enhance the gui of an application. But I dunno if I can progress using that.
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Oct 29, 2010
Ok, so I`ve been studying a bit of VB lately.. bought a few books and read lot`s of articles and seen hours of instructional videos, and I slightly start to get the hang of a few things.. :) I`ve recently started a fun little project, but I seem to lack a bit of knowledge to reach my goal. I`ll first try to describe my project:
[Cde]...
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Feb 1, 2010
I have a listview, I click an item and I add some informations and I want that once I click the button the next Item it is selected.
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Aug 26, 2011
i just need to select from multiple checkboxes, this checkbox contains days from Monday to Saturday. Here is the idea on what will happen if I select Multiple days, it will save on a field on my database with colon(;)
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Sep 12, 2009
I was just wondering weather it was possible to make it so that if I press the first a item on listbox1 then the first item on listbox 2 is selected aswell. For example I would like to have 2 listboxes lst1 and lst2 and I would like it so that when I select the first item on lst 1 then the first item on lst2 is automatically selected and when I select the 3rd item on lst1 then the 3rd item on lst2 is also selected.
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Apr 6, 2012
I am working on a project for software engineering where we are trying to create a warehouse inventory system. I have created an inventory page where I can add/delete/search for an item as well as access invoices and reorder items... i am struggling on the delete item part. I have my design set up where there are four different lists on my page. One for name, one for serial number, one for RFID number and one for amount in stock. I want to be able to select an item by name and its information in serial number, rfid, and amount also select and have no idea how to go about this..I wanted to use four different lists because I need to be able to delete an item from the list and it remove just one from that stock and not the entire item unless there is only one of that item left in stock.
for my inventory page
Public Class InventoryDepartment
Private Sub InventoryDepartment_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code]....
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Jun 17, 2010
I have been trying to understand how to make thumbnails that I create from a directory, and place in a flow layout panel, selectable. That is, when someone klicks one of the thumbnails that thumbnail should be selected and, either automatically or by the click of a button, a new window (picture viewer) opens and shows the original picture. This is probably very easy to implement, but I am at a loss for the moment.I've tried to find an answer to this by searching the forums, but nothing good has been found so far.
[Code]...
The above code works perfectly and creates thumbnails from the directory c: emp and whatever subdirectory the user writes in the textbox (textbox2). No problem here, it is how to proceed to the next level that has got me stumped. As stated I want the user to be able to select one of the thumnails to get a better look at it in another window. So in selecting it, the procedure should get the path to the original image, and the rest is magic.
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Jun 3, 2012
Using Webbrowser, I've managed to automate PDF downloads for several of the websites used by our company. I'm still a beginner at this process.Many of our PDF downloads, however, are from a Wells Fargo service called Wholesale Lockbox Image. The problem is that this Wells Fargo site expects the user to select items from a treeview as part of his query criteria. I don't know how to make Webbrowser select these treeview nodes programmatically.
Although I don't know anything about Java, the treeview is definitely a Java control. I know this for several reasons.(1) The instructions on the website specifically state that the the treeview won't draw until Java is installed.
(2) A standard Java splashcreen appears in the little treeview pane until the treeview actually begins to draw. The HTML code has an <OBJECT> tag which includes this attribute: ARCHIVE = "JWLTreeView2.jar"
Using Microsoft's mshtml library, I've tried looping through the elements on the page but can't find anything corresponding to the nodes in the treeview. I've also tried applying EnumChildWindows to the IE window, but here too I found nothing specific to the nodes. When I hover Spy++ over the treeview pane, it only identifies the pane as a whole, not the individual nodes.Furthermore, even when I select the nodes using my mouse, I don't seem to detect any corresponding alteration of the Webbrowser's HTML document (unless I overlooked it somehow).Does anyone have any suggestions on how to make Webbrowser select the treeview nodes programmatically?Oddly, I noticed that if the user saves the webbpage to his harddrive and then loads it into his browser from there, he can still see the treeview and select items (even without logging in to Wells Fargo), although if I bring the page home, the treeview is gone. I guess this means that IE is storing/caching the java file somewhere on the company machine, although I don't know if this fact would help solve my problem...
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Jul 22, 2011
I want to have a listbox on the left and on the right a textbox and when i select an item in the listbox i want to read a text file or database and display the value related to it and then have the ability to amend the content.
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Jun 10, 2010
I know that the web's full of Q's and A's about how to use IsPostBack when selecting the value of a listbox.I have a stored procedure that returns a few values, and I want in runtime to have all the values be selected in the listbox.But when I loop through the SqlDataReader and do: listbox. Selected Value = reader(0), the final result on the browser is that only the last value gets selected.The listbox's SelectionMode is "Multiple".
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Dec 30, 2008
i have a check list box. i want the user to limit, selecting maximum of three items from the checklistbox. if user select more than that i want a msgbox to prompt.
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Jun 11, 2011
I have a table being imported into my VB application that has 3 columns. I have written code to import the table, and have written code to display on the first column (country) in a list view.
What I want to do now is have the user select / highlight an item in the list view, and have the third column (currency) related to that selected country appear in a text box when a button is clicked.
Here's the code I've written that successfully imports the data and displays the first column:
Private Sub frmCountry_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim dataCountry As New DataTable()
[Code]...
Should I perhaps use something other than a list view?
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Oct 19, 2010
Private Sub lvList_DoubleClick(ByVal sender As Object, ByVal e As System.EventArgs) Handles lvList.DoubleClick
'Select Customer ID from lvList
frmEdit.txtCustomerId.text = lvList.Select("Customer ID").value
End Sub
my code for selecting the customer id from my listbox doesn't work..
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Dec 15, 2011
Our project is to make some simplified POS software, in our case, for a restaurant. The form I am currently working on is where you pick food items and add them to a listbox which will essentially be the order form. I made a database in Access that has food-item info and linked it to the VB project.url...My combobox narrows down the food items according to what category is selected, i.e. "Lunch".Now.. is there any way I can select an item from my database records (right box) and add them to an empty listbox that I'll save to a txt file. The database box is called "FoodItemsDataGridView" but maybe I don't even refer to that, I have no idea..
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Jan 14, 2010
I have a listbox with all items related to a person written in one line, e.g. Name, Gender, Phone #, Address, Email (all separated by a ControlChars.Tab).. How do I choose each individual item alone, e.g. Name, from a line to put it in a separate line in a file.This isn't working.. Can you tell me what code to use?
Dim outputFile As New System.IO.StreamWriter("Info.txt")For i = 0 To lstAllInfo.Items.Count - 1outputFile. WriteLine(lstAllInfo.Text.Substring(0, lstAllInfo.Text.Substring (" ")))Next outputFile. Close()
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Dec 3, 2009
I'd like to select a node (item) in the TreeView control to get its path information as a string. I'm finding it's not like selecting an item in a listbox.
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Oct 15, 2011
I just started learning VB.NET about a moth ago (I have been taking classes, so its been about 5 days worth of classes) and I decided to work on this project idea I had. Essentially, it's a database to keep track of anime and manga that I, or whoever else uses it, have watched/read.[code]...
However, now I want to make it so that when one selects a specific title in the list box, it will show the data in the tags below the <series> tag that matches the item selected in a label. One thing I just thought of is than since the list box gets populated in the order that the series are in, it could be easier to go in order from first item equaling the first <series> and so on.
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Dec 1, 2010
I have a listbox control that has a selection mode "MultiSimple" (I've also tried MultiExtended). I also have a button that uses this code to select all the items in the list:
Dim i As Integer
For i = 0 To ListBox1.Items.Count - 1
ListBox1.SetSelected(i, True)
Next i
It works ok but the problem is that it's very slow. I have cases where there are 60 000 items in the listbox, and it takes forever to select them all. Is there any function that would select all at once (Just like ListBox1.ClearSelected() unselects all instantly)?
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Feb 6, 2010
I currently know how to click a button on the application and when I click it, it invokes the OpenFileDialog Event or Object. After It Opens the Open File Dialog, I am able to select only ONE file from a location on my computer. After I click that Single File on my computer, I press the Okay or Open Button on the Open File Dialog, and then it adds that items to my list Box, knows as PlayList_00 and PlayList_01.
Here's what I got so far.
Private Sub addBTN_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles addBTN.Click
OFD.InitialDirectory = "C:Movies"
OFD.ShowDialog()
PlayList_00.Items.Add(OFD.FileName)
[code]....
'I have built a Movie Play List, for my Windows Media Player.'But Selecting One item at a time is just fine, but I would really 'enjoy being able to select more than one item at a time, and then 'adding them to my ListBox(s).
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Mar 24, 2010
I'm selecting a customer from a listbox of surnames...I need to address to display, and the date arrived back...Can't get anything to go into the textboxes, if dr.hasrows is showing up as none I think... not sure how to go about remedey"ing" it though...
Listbox
Private Sub ListBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged
Dim ConnectionString As String
[code]....
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Jan 1, 2011
I have a table being imported into my VB application that has 3 columns. I have written code to import the table, and have written code to display on the first column (country) in a list view.What I want to do now is have the user select / highlight an item in the list view, and have the third column (currency) related to that selected country appear in a text box when a button is clicked.Here's the code I've written that successfully imports the data and displays the first column:
code
Private Sub frmCountry_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
[code].....
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May 26, 2010
VS2010 Professional crashes when I select Choose Items from the toolbox context menu (right click). All has been working well since it was installed in March but just suddenly started with this behaviour. I had an issue with one of my apps which caused a total VS freeze at about the same time this issue started but the app is now working correctly.It had stopped me from using VS2010 and I reverted to vs2008 but that has developed a bug which prevents me from creating / accessing any data connections. A bit stuck now.I have removed and installed VS2010. Initial reinstall attempts failed due to unverified msi file (??). However, I have now successfully installed VS2010 back on the machine. Crash problem still remains.
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Feb 7, 2012
The List Box has three candidates and a record Button. Every time the record button is hit I need it to add those button clicks for each candidate that is selected in the List Box. My code keeps counting all the clicks no matter which candidate I am selecting in the List Box. How can I differentiate between each selected item in the List Box.
Private Sub exitButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles exitButton.Click
Me.Close()
End Sub
[code]....
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Mar 21, 2012
i am trying to make a vb.net project for a travel agency ..... i have make all of the content of it but i got stuck in listbox .... i have added onnfiled of sql table into the listbox and now i want that when i select the list box content then all the other fields of a the row will automatically come in the rest of the textbox so i can add and delete it manually....... here is my code..... of one form(i have made 13 forms like that)
[Code]...
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Mar 27, 2012
So I want it to remove any text in the list box that has a "Job" in it and just replace it with a blank nothing.
Like if the listbox looked like this
Yardjob
jobsong
redjob
then it would change it to this
Yard
song
red
I also would like a way of removing any blank items from the listbox.
[URL]
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