VS 2008 Ave A Listviews Items To A Database (after Clearing It) Then Load It All Back In To The Listbox?
Nov 23, 2009
Im trying to effectively, Save a listviews items to A database (after clearing it) then load it all back in to the listbox, would this do it? becuase it just doubles what ever is in the listbox @ the time,
Dim ConnStr As String = "Provider = Microsoft.Jet.OLEDB.4.0; Data Source = " + System.Windows.Forms.Application.StartupPath + "data.mdb"
Dim DT As New DataTable()
Dim SQLStr As String = "DELETE * FROM [keys]"
[code]....
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Mar 27, 2010
I'm new to VB 2008 and was wondering how to apply 2 toned back color to my datagridview column headers or listviews. Where the color is lighter at the top of the column header and then becomes darker towards the bottom of the column header. It seems most apps use them these days.
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Jan 16, 2012
I have an ArgumentException was unhandled message: Cannot add or insert the item '1' in more than one place. You must first remove it from its current location or close it. Parameter name item. Note: Have 2 listboxes 4 textboxes double click listbox2 and it fills in the four texboxes (now it needs to put it back into listbox2 in the same place it came from but crashes. I marked the area and underlined where the error message was coming up. So double click a selection in listview2 (fills 4 textboxes) then double click textbox2 (should return text data back to listview2 in same spot) but crashes. See code below.
[Code]...
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May 26, 2009
I've got a problem, I'm making a program that gives you the choice to add items to a listbox, these items are text. When the form loads, i need it to load text from a file into a listbox. For every line I need it to add that text to the listbox. My problem is when it loads, there's an extra line, but that's only after I close the form and open it again. The reason it happens when the form unloads is because the listbox items are saved on form unload. Now, I believe the problem is my code to save the items:
Dim Env As String = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments)
For Each item In Form1.TP1.Items
Dim Save As New SaveFileDialog()
[code].....
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Mar 19, 2011
How do i apply sub items to colums in listviews in visual basic 2010, so there under the collumn name and look smart The Second one is How do i program functions for when 1 of the subitems are clicked?
[Code]...
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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
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Dec 7, 2010
when i use
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Form2.TabControl1.TabPages.Clear()
[Code]....
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Nov 28, 2008
I have a menu strip. In the menu strip I have something for some saved urls in the database, I called it Bookmarks. So I'm trying to fetch the items from the database and have it load in to the menu items.. but it keeps adding items and I only want them added once.
[Code]
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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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Nov 14, 2009
i want to add all items from my listbox into a database. the first item has to go into the first row of the table followed by the second item into the second row followed by the thir in that order. I have already created the connection with the database. I now want to write an insert query to insert the items into the table with the sql command in a loop but i don't know how to get each item from the listbox and add it to the insert statement. I want to assume that non of the items in the listbox has been selected.[code]
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Jun 16, 2009
In my project when someone logs in I refresh the overhead and side menus. My overhead menu is an extended menustrip component that I have made. I am able to clear the menu, reload it dynamically but I am not able to add/insert the open windows which are managed by the mdiwindowlistitem property. These are the items named "1 - form name " "2 - form name" etc.
I have been able to copy the whole dropdown list, and with some very hacky loop work I can take out everything but the items related to the forms. But when I add them back in, they are not on my list. The related forms are still open and if you click the maximize button to shrink a open child window, and then re-maximize that same window...the items magically show up in the list.
This ManageMenus sub is called during a login change. If you breakpoint on "openwindowslist" after it is returned with data, it has the proper entries and nothing extra. It just seems that the for/each add loop does not actually add the items. Or, if it does add them, I can't see them.
Tried both insert and add functions, same results both ways.
CODE:
In my xmlMenuStrip component this is the function that removes everything but what follows the seperator. It returns them in a list.
The format of the full window menu is:
CODE:
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Apr 14, 2012
I have a program with two forms, one that handles the applications controls, and the other with the functions that open a file (csv), open a database, and query the database. The controls on the first form are a list box, three labels (to display parsed csv information), and three buttons (clear database, load database from csv, and load listbox).
The clear database and load database buttons (events) seem to function correctly.On the other hand, the load list box event doesn't function 100% the way I'd want. [And, I can't test the selected index event yet]
The code for the load list box event is:
Code:
Dim db As New DBUpdt 'second form
b.openConnection("weather.mdb") 'open database connection
db.query("SELECT * FROM stations") 'query database
Do While db.moreRecords
[Code]...
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Sep 25, 2011
probs a simple answer but my mind is blank atm. I have this code to move all items from listbox3 to listbox1 but it wont move them unless i select 1, then it moves all items.
[Code]...
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Nov 25, 2011
I have a list viewer set up in one of my forms which contains data inside it which is filled in from a database. When I want to clear the list viewer, it clears all values in the list viewer except for the first row. Now, if I close out the form and re-open it, the list viewer is officially cleared.
The code I am using is: lsvDocuments.Items.Clear
Is there another way I can clear the list viewer completely without having to close the form and re-open it?
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Apr 30, 2009
I am trying to clear the items from a listview, but it is not working. I populate the listview like this (pulling data from a sql database)
[Code]...
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Jun 11, 2011
How to save ITEMS on listbox to MySQL Database in vb.net.
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Mar 24, 2009
I am looking to save the contents of a listbox to a database, but I want all of the listboxes items to go into one field.
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Mar 7, 2012
how can i save all the items in listbox ex.
and here is the escalar command that i use to save to mysql db.
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim connection1 As New MySqlConnection(connStr)
[Code].....
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Aug 2, 2010
I want to get items into the ListBox from Database on FormLoad.
My code is:
database
Private Sub Models_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim qry As String
[Code]....
I am already having three models in database that has to be loaded in ListBox on formload.
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May 12, 2011
how to get the selected items from a check list box...i have 7 items in it, need to see which ones are selected...and how to clear the checks from the list box?
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Sep 14, 2011
I was writing a program that would save the contents of a listbox to a database and wanted to reload the users' choices when the opened up that particular row again. My first thought was to do it with two for loops, just as I used to do in VB6, but I thought there must be a better way to do it. And there was. Sort of. It basically involves using the SelectedObjectCollection class.For this demo, you'll need a listbox called Listbox1. Set selection mode to something other than "One" or else it won't work as expected
Dim items(0 To 3) As String
items(0) = "One"
items(1) = "Two"
[code]......
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Jun 12, 2012
I want to transfer multiple items selected from a listbox to an access 2007 database using a parameterized query.When I select certain items from the listbox, only first item selected gets stored in the database.Other values selected are not written to the database.My code is as follows.Is my approach towards transferring multiple values correct?Someone
[Code]...
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Sep 24, 2011
Basically I have a list box with a collection of strings. The way it works is you select an item from the list box then enter an integer into a text box and it calculates, straight forward.Where I'm getting tripped up is I'm trying to implement a 'Reset' button to reset the list box and text box. The text box is straight forward as is clearing the selection in the listbox:[code]I understand that since there is nothing selected the index is getting tripped up or whatever but I don't know how to stop this. I'm new to VB and programming in general and have been googling for days trying to get this fixed to no avail.
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Nov 8, 2011
I am trying to figure something out. I have an application in which I am adding the ability to consume a feed. I have no problem with the feed itself, but my problem is how can I mark certain items as 'read'? The only thing I can thing of is to read the feed into a database. In this database, I add a column for 'read' which I update when the user has read the article. Then each time I retrieve the feed, I compare the feed to the database and only load new items into the database.
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Nov 17, 2010
I found and am using this code to move items from listview1 to listview2.Private Sub ListView1_ItemDrag(ByVal sender As Object, ByVal e As System.Windows.Forms.ItemDragEventArgs) Handles ListView1.ItemDrag, ListView1.ItemDrag Dim myItem As ListViewItem
[Code]...
I am planning on having 12 - 14 listviews on my form.Do I have to copy the above code and name each source and destination listview for all combinations that I want to drag to and from? Or, is there code that will 'read' the source listview1 name when clicking an item from the list and 'read' the listview2 name when the cursor is on the listview I am dropping the item into.Been searching but probably not using correct terms.
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Apr 2, 2010
How would i get all the items in a listbox and split them each of them with a "|"?
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Jul 24, 2010
I have a program where I have to read employee payroll info from a text file and write to a list box using a loop and then add the total payroll for all employees. Everything works except the adding of payroll.
[Code]....
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Jan 29, 2011
I have a single listbox that stores data from a saved .txt file. All of values are whole numbers and I'm trying to add together all the items in the listbox (the numbers) and then display them in a textbox. I have searched, and tried several things but each time I try to add them together, it states that my items are strings. How to sum listbox items and/or convert them out of strings?
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Jan 3, 2010
How can I make listbox that contains items from some folder...
For example: I have 10 .txt files in 1 folder. In my program when I click button "view" there is a listbox that contains names of that .txt files.
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May 23, 2010
in a list box which is populated by the end user using this code
Dim lb1s As String = Form1.Folder.SelectedPath
Dim di As New IO.DirectoryInfo(lb1s)
Dim mydirInfoArray As IO.DirectoryInfo() = di.GetDirectories
[code]....
I have 3 text boxes i want to display the number of items in the list box which contain certain words,So for example in textbox1 i want it to display the total number of items in the list box which contain "(U) or [u] or [ntsc-u]" etc, this will be triggered via page load or a button which ever works best.
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