Cannot Properly Load A String Collection Into A Listbox
Apr 2, 2009
I'm creating an open-source web browser in VB.NET Express 2008 and I've created a User Setting named History to save a collection of strings for the browsing history. However, when I try to load the history form at runtime, only the first item (of the three I added) shows up in the listbox. Below are both examples of code I have tried to use to accomplish this task.
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
ListBox1.DataSource = My.Settings.History
[Code]....
View 4 Replies
ADVERTISEMENT
Feb 26, 2009
I'm trying to create a favorite box in my web browser using this code in Favorites.vb
Public Class favorites
Private Sub btnAdd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAdd.Click
[Code]....
Now I have it so when you click the add button it will put the URL in the string FavList, and place the URL in Listbox1 however I have no idea how to save it, and load it.
So the next time the user opens it, it will have the URL in the string and URL box, so when they click the URL in listbox1 it will redirect the WebBrowser. I think it works like that already I just need to know how to save it, and load it.
View 2 Replies
Sep 15, 2008
i currently am running vb 08 and need coding help about how to save text from a listbox and load it on app start up.i also need a code to automatically place a .txt file into a folder when installed
View 1 Replies
Jan 14, 2011
i have a string = "/a/value1/x/valueforx/b/value2/c/value3"
the keys a, b, and c can be in any order in the string that is coming in and will always be separated by a slash.
What i need to do is to find a, b, c and then add their values to a collection
View 5 Replies
May 26, 2010
I am using the following code in the load event of my form to populate autocomplete string collection but it gives me DBNULL error. Is there any other workaround where it skips DBnull values?
[Code]...
View 3 Replies
Feb 17, 2011
i need to load 500k string items of varying length to a listbox without freezing the ui , what us the best method.
I read about background worker, but don't know how to apply it without freezing the ui
View 8 Replies
Jul 31, 2009
This problem seams to be in other forms without any concrete solutions. I figured id post it here since i am running into the same problem and i am sure you have at well at some point (if not then you will soon...lol). The problem is this error is appearing when i open a form in designer mode.
[Code]....
View 2 Replies
Jun 19, 2008
When I start VS2008Prof I get a Package Load Failure "Package 'Microsoft.VisualStudio.Xaml' has failed to load properly". Repairing VS and resetting ('devenv /resetsettings') it did not help.
View 3 Replies
Jul 31, 2009
this error is appearing when i open a form in designer mode. A picture showing what happens to VS when this error occurs.The error code is:One or more errors encountered while loading the designer. The errors are listed below. Some errors can be fixed by rebuilding your project, while others may require code changes.Unable to cast object of type 'System.Diagnostics.DebuggerNonUserCodeAttribute' to type 'System.Attribute'.
View 1 Replies
Aug 10, 2011
Suddenly today , when I started my computer and went on to open the VS , I got this strange message: Do you know what it might mean ? I didn't installed anything on my PC for a long time, so I can't think of anything ...
View 8 Replies
Nov 27, 2009
Getting ListBox Items To Display Properly
View 2 Replies
May 4, 2012
My first issue is that intGallons wont round up properly at 231, like in the image below, instead intGallons stays at 2. The second problem is with the format of listbox. I would like each variable under the proper column. I tried using
lstOutput = String.Format("{0,5} {1,15} {2,15} {3,15} {4,10} {5,15} {6,15}", intRoomNumber.ToString("n1"), intSquareFeet.ToString("n"), intGallons.ToString("n1"), decPaintCost.ToString("n"))
but I get an error about string not being able to be converted to listbox.
Public Class Form1
Private Sub btnCalculate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalculate.Click
Dim intTotalRooms As Integer
[code]....
View 5 Replies
Dec 16, 2011
i add this values to listbox
6
7
15
6
[code]....
but in button function when i press the key is shows me this:
15
5
6
6
[code]....
code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
ListBox1.Sorted = True
End Sub
View 2 Replies
Mar 24, 2010
What is the best way to msgbox the text of an item in a list box when the listbox item is double clicked on?
View 6 Replies
Jan 25, 2011
If I have a parent object (Parent) which has a List(Of Child) objects as a many-one relationship. Is it possible to return a Parent with a subset of it's child objects (eagerly loaded)? I am using VB and Criteria.
e.g. If Parent 1 has 50 children (20 type X 30 type Y) and I want to return the Parent with a collection containing only type X.
I only want a collection with a size of 20 with it's eagerly loaded children?
View 1 Replies
Aug 31, 2011
I have a class with a collection of objects of type clsCDImage
clsAllCDs:
Imports System.Data.OleDb
Public Class clsImages
Private mAllCDimages As New Collection
[Code].....
View 2 Replies
Oct 17, 2011
I am trying to add numbers. So if there are 2 numbers in a listbox, theyare summed up. If there are 3 numbers in a listbox, they are summed up
[Code]...
What I'm trying to do is to count the number of items. Then I start my counter at 0. For each time the counter goes up, I add another row from the list box. and loops until my counter reaches the number of items in my listbox. I'm stuck intTotal. The only way I know of adding the totals is lstCosts.Items(0)+lstCosts.Items(1)+lstCosts.Items(3). But what if the user enters 4 numbers? I can't find a way around that. I think this should be a very simple question and I think only this line needs to be changed.
View 2 Replies
Jan 12, 2010
I'm in the process of creating my own version of the Combo Box as MS version does not give me the flexibility I need, this is work fine. I just had a little niggle
The List box contains/uses ObjectCollection to hold all its objects, but it does not have the facility to inform by the way of events that an item has been added etc.
If I inherited from this collection could I add the necessary code to make this happen, I have done this in my previous controls I�ve created when I wanted this facility.
View 3 Replies
Feb 9, 2009
I am creating a glossary of words used in a study course. I would like to populate listbox with words entered into an imputbox.
View 8 Replies
May 17, 2012
Currently, I have a listbox lstInventory where I have loaded some database information from a .mdb file. I am able to add new records, and they all display correctly.
Yet, I can't seem to retrieve or access any of the listbox items. (Not trying to reaccess database in here, yet). I am hoping to "Edit" an existing database record by matching it to the lstInventory's selecteditem property. Unfortunately, I am not able to retrieve anything (tried traditional CType(lstInventory.selecteditem.ToString, String) approach, as well as a debug.write approach (which I can't seem to display, even with a Listener-which is another issue in itself).
Furthermore, when I check the listbox.items.count property, it prints out as a "0" [using a messagebox.show()]
I have tried searching multiple forums, but found lots of "database into listbox" threads, and the MSDN website hasn't helped me yet. Do I need to know the collection's name (what would it's name be based on ?)? Or am I not converting the object into a printable/countable quantity?
View 5 Replies
May 17, 2010
I need to check if a label starts with a certain text, but it wont work!Here is the code I have:
Dim str1 As String = Label1.Text
Dim value As String = "abc123"
If str1.StartsWith(value) Then
'do something
end if
May I also add that the label i'm checking (the text inside it) has no spaces, i don't know if that makes any difference.
View 5 Replies
Oct 22, 2011
I originally wrote this with Option Strict Off but I'm wanting to rewrite my application with Strict set to On. The error I get with Strict set to on is: "Option Strict On disallows implicit conversions from 'Object' to 'System.Delegate'."
Private Sub Me_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Me.Load
SettingsForm.ComboBox1.SelectedItem = My.Settings.Theme
Try[ code].....
View 10 Replies
Nov 24, 2010
I am facing a really very interesting problem with string.
My code is
[Code]....
But when I comment those lines (which are uncommented in code above) its working fine.
I am taking value in filepath variable from file dialog's FileName property.
EDIT: I have also compared the values of variable stropt and strwithpara with "IF" condition and found those are same.
View 1 Replies
Oct 14, 2009
I cannot find how to display an error message when what I typed in the listbox field is not in the listbox collection.
For example the listbox contains the following items
1) Apple
2) Strawberry
3) Mango
If for example I type "Mongo" and then press tab to another field, a message will pop up saying I typed something not in the listbox. Anyone who knows how to code if text in textbox1 is not in listbox then blah blah blah.
View 1 Replies
Mar 17, 2009
Is there a way to to combine line's 1 and 2? I only want to loop through a list of the selected items in this listbox. This works just fine, I just wondered if there was a collection of selected values returned that I could use to avoid having to do it this way.
For Loop1 = 0 To MyListBox.Items.Count - 1
If MyListBox.Items(Loop1).Selected = True Then
...
End
Next
View 2 Replies
Sep 21, 2007
Is it possible to have a texttbox autocomplete source set to a listbox's collection? I see:
FileSystem
HistoryList
RecentlyUsedList
AllUrl
AllSystemSources
FileSystemDirectories
CustomSource
in the texxtbox's autocompletesource property but are unable to make it happen.
View 3 Replies
Oct 17, 2011
using a Binding Source to Bind my Collection to a ListBox? I can bind the class to the binding source, but im not sure how to let it know what type of list it is, or how to display the correct item.
I'm trying to get the listbox to display the ItemNames. Here's my class and collection class.
<System.Serializable()> Public Class SurveyItem
Private itemNm As String
Property ItemName() As String
[Code]....
View 1 Replies
Jun 28, 2011
I am trying to convert "-10,00" from a string into a currency using the Swedish culture. Here is my code:
ByVal ci As System.Globalization.CultureInfo("sv-SE")
Convert.ToDecimal("-10,00").ToString("C", ci)
The output from the above code is: -1.000,00 kr, which is wrong. It should be -10,00 kr. Is there anything wrong with my approach?
The solution is to pass the cultureInfo into the ToDecimal function as a second parameter.
ByVal ci As System.Globalization.CultureInfo("sv-SE")
Convert.ToDecimal("-10,00", ci).ToString("C", ci)
View 1 Replies
Dec 21, 2011
I have a script that attempts to load XML text from a URL and I am having difficulty figuring out how to check to see if it is valid, normalized XML. I don't have a schema as there are several variables which could change the XML format, I just want to check to make sure all of the opening tags are closed properly so I can verify that the entire string loaded properly.
Here is what I have right now.
Dim objResponse As HttpWebResponse
Dim objRequest As HttpWebRequest
Dim strXml As String
Dim newMembers As New DataSet
Dim xmlReader As StringReader
[Code] .....
I would like to add something here to validate strXML
' create a dataset from the XML file pulled down from the remote server
newMembers = New DataSet()
xmlReader = New System.IO.StringReader(strXml)
newMembers.ReadXml(xmlReader)
View 3 Replies
Oct 24, 2010
I would like to populat the Listbox collection from a column from a Access database I already created the name of the collection as collections. I can autocomplete/Suggest a Textbox with no issues.[code]
View 2 Replies
