Using the following code to add results from sql to a listview. Is there anyway that I can make a comparison from the reader against all currently existing item strings?
vb.net
LstResults.Items.Clear()
If con.State <> ConnectionState.Open Then
Try
con.Close()
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Do I really have to go through all this just to find out what item has been selected in a ListView?
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Isn't there something fundamental like this? Is absolutely everything in VB.NET buried beneath a colossal heap of bureaucracy?
I'm writing an application to help manage an employee database. It displays the current entries in a ListView control using the SELECT FROM sql string and allows entry into the database using the INSERT INTO sql string. What I want to do is have the user select an item from the listview and be able to delete it from the database. How I'm trying to go about it is by detecting when the user presses 'Delete'. When they do, the program gets the string value of the item, hands it off to a variable, and the variable goes into a DELETE FROM sql string and deletes the row in the database.
I have multiselect disabled in the control so only 1 selection is possible at a time. I don't know how to detect the Delete key or how to get the string value of a listview item into a variable. If I know how to do these two things, I can work out the rest of the application. I'm still kinda new at this kind of stuff, so any responses will have to be dumbed down a little.
I am coding for a WPF application that has a ListView. I want to add values of one column of selected items in the listview to a string array.
View 2 Replieshow can i select an item in the listview from a string. ex.i'm loading the listview w/c: directory folders and i have a checkbox to show or hide hidden folders. no problems there.the problem is when i click an item in the listview and check or uncheck the checkbox, the listview reloads w/a new set of items.
i already have a string to get the selected item before reloading the listview, but i cannot seem to figure out how to select that same item in the listview.
I'm kind of stuck on this one, and i know it's going to be something simple, but I just can't come up with the solution. I want to be able to assign a background color for each item in a listview with a predefined string or other variable type, so when item's are added to the listview and they contain a specific string, the background color for that item will be changed to the predefined color which is stored in a string (or other variable). When I attempt to change the background color of the listview item using a string ie. "Blue" I get an error.[code]....
View 8 Repliesi'd like to find/filter listvew item as i type in a textbox, the listviewitemfind doesn't seem to work whe i try it.is this possible without looping through all columns and then all rows?
View 7 Repliesi am using a webclient.downloadstring to get the string lets say this is this
Item1
Item2
Item3
Item4
and i wanta send each line to its own specific item...
I've been trying to feed a multi line textbox into a string array then check item by item if a string contains part of it.
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I am filling a listview control with a big number of items but i came across an problem, the repeated values. In those items i use .Text and .Tag so i can relate some hidden values per item. I have been trying to use the items.find() with no luck since it looks like to search for keys, which i don't really have. Every item has different .Tag values but it can happens that they have the same .Text Is there any way to remove or just not add items based on a .Text search in the ListView?
View 13 RepliesHow do you list for example item 4 in a listview that only got 1 column?
View 2 RepliesI am trying to add tooltip to each item in a listview but they dont seem to come out. I tried setting the .ToolTipText = "text" on each item but when i put mouse over each item, nothing appear. What am i doing wrong?
View 1 Replieslistview as a max number of items??if so how i can give it the possibility to read more item?
View 6 RepliesI was trying to at random select a listview item, I tried:
Dim random As New Random
Dim test As String = random.Next(0, formMain.ListViewSearchResults.Items.Count)
MessageBox.Show(test)
but this brings me back a "0".
How would I remove files that are already added into the listview?
View 12 RepliesI have a listview, and when you right click, it shows some things. I need to make it see if an item on the listview is selected. Is there a way to do this?
Like, this doesn't work, but in code it would be like
If listview1.HasItemSelected = true then'code here end if
I want to retrieve the selected item in my listview as a string. I have 2 columns, Name and Version. When i click a button it should come up the value of the column Name of the item that is selected.
Something like this:
MsgBox(Listview1.SelectedItems.Text)
I remember doing this in a checkboxlist element, but with listview element its giving a hard time.
Private Sub CheckedListBox1_ItemCheck(ByVal sender As Object, _
ByVal e As ItemCheckEventArgs) Handles ListView1.ItemCheck
If e.NewValue = CheckState.Checked Then
For index = 0 To Me.ListView1.Items.Count - 1
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ok I made my self a listview with a checkbox on it. I was wondering if it was even possible to add something to my form so when I build my project and I rightclick on my list view item a menu will open saying:
delete item
Clear Item
A menu (not a form) just like when you do a right click on your mouse.
I need to add multiple images to a list view item dynamically. For example, if an alarm exceeds limit one image has to be displayed and is fine with me.But when the user clicks alarm inhibit checkbox,then two images has to be displayed,one for alarm existance and second for manual operation which represents the user action.Both the images have to be displayed under one column only..
View 3 RepliesKnows How To Call The Selected Item Of Listview In Textbox Or Msgbox I Have The ListView With 6 coloum and want to call data From 3 coloum
View 1 RepliesI have a listview with a few items like below. What I need is when I select an item in the listview then click a button it will go to the url that in the second column in a webbrowser. So when I select an item then click a button it will do webbrowser1.navigate(listview1.selecteditem) or something like that but I cannot figure out how to get just the url.
View 2 RepliesI am trying to programmatically select all items, including subitems, in a listview and can't seem to get the result I am looking for. I have FullRowSelect = True set and when I click on the items, all is fine. However, if I use the following code, only the ListViewItem is selected and not the item's subitems. Is there a way to achieve this?
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I am doing this within a thread:For Each item As ListViewItem In lvUsers.Items and I am getting: Cross-thread operation not valid: Control 'lvUsers' accessed from a thread other than the thread it was created on.I have been able to adjust a control in a way using something like:
Public Delegate Sub ListAddNameInvoker(ByVal text As String)
Public Sub ListAddName(ByVal text As String)
If lvUsers.InvokeRequired Then
[code]....
But how do I get data from a control and pass it to another thread?
how to, by a listview selected item make an picturebox appears?for exemple. got a listview in a form, and a hide picture box, and when i select an listview item, the picture box appears, turn the visible to true.
View 6 RepliesI have this code
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And I select one and it works! But when I try to select a different one it comes up with an error on..If ListView2.SelectedItems.Item(0).Text = "None" Then
The error..InvalidArgument=Value of '0' is not valid for 'index'. Parameter name: index
I have a list view control and for each item I set to display an icon it will change the icons for the other items that already have icons, to the most recently added icon.
Here is my code.
vb.net
Dim ext As String = Strings.Right(e.Item.Text, 4)
Dim fileandparam As String = IconsInfo(ext).ToString
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Ok, so I have a listview on one form, and when a button is pressed it opens up a new form with the contents of the selected listview item and it's subitems in a series of textboxes. The user can then change the data in the textboxes and either press save to make the changes or cancel to close the window. What command would I use to change the selected listview item and subitems to whatever is in the boxes?
this is the code that populates the boxes:
Private Sub Form_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim appeditcontents As String = main.passlist.SelectedItems(0).ToString
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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
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I have a media browser program I am building. I am trying to use drag/drop so a user can drag media tracks from one listview to another listview and then use the second list view as a playlist in windows media player com object. Reading at MSDN I have found out that there is no built in support for item re-ordering with the listview control. I have listview1 working correctly but when I try to reorder items in listview2, the dragged item ends up at the end of the list. So basically I need to get the item insertion index corrected. I have tried more than 10 times to get this code right.
Here is my code which includes a form with two listview's.
Public Class Form1
Private Sub ListView_ItemDrag(ByVal sender As Object, ByVal e As _
System.Windows.Forms.ItemDragEventArgs) Handles ListView1.ItemDrag, _
ListView2.ItemDrag
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