I have a form that has a listview with a number of items on it. In certain circumstances, when I load the form, I want a particular item to be automatically selected. The user will select the item to be selected from another form, and I will pass this item to the form in question.
But how do I tell the listview 'hey, set this item as your selected item?" There isn't a writable 'SelectedItem' property.
Here is my problem, I have been learning about SendMessage and getting the Handles of Windows. In the following code example I show that I can get the number of Items in a ListView Control by API, but I have no idea of how to select an Item within the Control, ListView; in other words, how to select a ListViewItem:
[Code]...
I have been learning about SendMessage and getting the Handles of Windows. In the following code example I show that I can get the number of Items in a ListView Control by API, but I have no idea of how to select an Item within the Control, ListView; in other words, how to select a ListViewItem:
Public Class Form1
'Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Integer
[Code]....
I have Main and Detail forms. The Main form has ListView1. I would like to select new added ListViewItem in ListView1 when user click Save button in Detail form. I have problem only when I'm adding new item. When I modify and save existing item according item is selected after save command.
View 1 RepliesI'm trying to remove the selecteditem from the listview and select the nextitem true the index.[code]...
View 5 RepliesI have a listview with the 'view' set to 'List' and 'multiselect' set to 'false'. What I'm doing is setting the selected item when the interface first loads to a value from the database. This works fine, and the code responds appropriately to the selected value. However, the selected item is not highlighted in the listview, so the user doesn't know which item is selected initially.
Is there a property or method that controls this behavior?
Reducing Code Clutter When Using A ListItem Object
When using ListItem objects, the normal procedure is as follows:
[Code]......
IT STILL GIVES A MSGBOX IF I SELECT THE CHECKBOX BOX OR NOT ....My code below will redirect to Google in both conditions: If the user selects the checkbox, then it will redirect to www.google.com, but if a user forgets to check the checkbox then it shows the msg box with an ok button. When I click on ok it should redirect to www.google.com
I want When a user forgets to check any of the checkboxes to show a msgbox with an ok button and stay on the same page. Otherwise if user selects any of the checkboxes then redirect to google
[code]...
ive got a form containing treeview on the left docked, and two panels one over the other (just as for practice), so i am using treeview to select one from the other the code contains the Case select,
If
Not e.Node
Is
Nothing
[code]....
The problem is , both panels are not visible, when i select the first node the firstpanel is visible then i select the second node both panels are not visible, i return to the first node the first panel is visible.
on cloning a selected listviewitem from listview1 when a button is clicked to listview2. How do I achieve this? Here is the code I have but does not work exactly how I want it, it just makes a clone of all the listviewitems in listview1.
foreach (ListViewItem item in this.listView1.Items)
this.listView2.Items.Add((ListViewItem)item.Clone());
I want to start a thread, which handles a class.That class should add a listviewitem into a listview on the main form.[code]No idea why that doesn't work.I really need threading, cause it would block the program.These codes are examples, the real one is with loops & stuff, so that blocks the program.
View 1 RepliesTrying to figure out how to take a selected listviewitem and when a button is clicked add it to another listview.
View 10 RepliesI am trying to find a way to associate a key with an index for a Listviewitem in VB.Net. I'm not even sure if it can be done with .Net but I know in VB6 I could do a
Listview.listitem.add "somestring", "somestring".
For the application I am using this in, I cannot have duplicate item.text so I would make the key the same as the string. this also made accessing the item easier since I didn't have to rely on index to update the subitems.
How would I go about referring to specific listview items directly.
Under certain circumstances I want to check a specific listviewitem, but i can't seem to refer to the specific item of the listview...
I have a ListView, wich its View property is set to LargeIcon and there isn't any ImageList attached to it.The thing is that ListViewItem's text overlaps next ListViewItem's text. With View set to Tile I have no problem at all, but It shows the items one below another.When I add columns header,I set their width to a large number,but it seems that ListViewItem doesn't care,I get the same mentioned effect.My question is wich property do I have to change to avoid ListViewItem's text overlapping?
View 6 Repliesbelow is a small part of my asynchronous TCP connection code. When I connect I'm passing a ListViewItem as Object parameter. I'd like to update the ListViewItem once the connection has been established or an error occurs. ServerConnect runs on a separate thread, because it's an asynchronous connection, so I can't update the ListViewItem directly.
Does anybody know how to update the ListViewItem?
I looked at jmcilhinney's asynchronous TCP example in the Codebank forum, but it confused me. I don't know which parts I need and which parts I don't need.
::edit::
One more thing. I also need to update the ListViewItem in the Read sub, but I'm passing "buffer" as Object, so how would I update the ListViewItem there?
vb.net
Imports System.Net.Sockets
Public Class TCP
Private Socket As TcpClient
[Code].....
i have a listview in form1 and combobox in form2..i want add every first item of listview of form1 into combobox of secondform....i did this...
View 1 RepliesOn button Click I want to Set the Select command of a Gridview. I do this and then databind the grid but it doesn't work. What am i doing wrong? [code]
View 2 RepliesI have a listview but I would like to add 3 properties (for example one of them is "image") to the listviewitems in it. I was fine with making a custom class with the 3 properties and just inheriting ListViewItem but now I need to use MultiSelect, so it means doing things like(in For Each loops):
ListView1.SelectedItems.Item(i).Image don't work because it returns a ListViewItem not my CustomClass. I could always do : Ctype(ListView1.selectedItems(i), MyCustomClass).Image
But using that over and over again seems like a waste/wrong way to do it?
I've been tingling with the colors of listviewitems.For the most part, they work great, but I can't set alpha:
Me.BackColor = Color.FromArgb(100, 40, 40, 40)
Me.ForeColor = Color.FromArgb(1, 255, 255, 255)
Me.BackColor = Color.FromArgb(100, 40, 40, 40)
Me.ForeColor = Color.FromArgb(100, 255, 255, 255)
The result of any of these two lines is exactly the same ( no change in alpha ). The colors take ok though.
I'm having an array of ListViewItem and I want to delete the first item. I tried doing this with:
myItems(0).Remove()
But it's still there. According to the tooltip:
"Removes the item from it's associated System.Windows.Forms.ListView control"
Since my array isn't associated with a ListView control, could that be it?How to do it?
I'm having an array of ListViewItem and I want to delete the first item.
I tried doing this with: myItems(0).Remove()
But it's still there. According to the tooltip: "Removes the item from it's associated System.Windows.Forms.ListView control"
Since my array isn't associated with a ListView control, could that be it? How to do it?
I want to disable or hide a specified listview item in ListView control, how to do?
View 10 RepliesI have a listview control on a form. This listview control is populated with at times thousands of listviewitems.Part of my process, is running through custom made filters, to hide unwanted items (before they're even inserted into the listview).So as I hinted earlier, the way I hide items that I don't want is by not inserting them at all. I'd like to make a shortcut available, that would allow me to show / hide the hidden items by simply pressing the shortcut.
My problem is that if I do this, I have to 'refresh' the listview items everytime as I do now ( by removing all and re-inserting the ones I want ).Is there no faster / better way than by removing / re-inserting the items ( which takes roughly 2-3 seconds ); which is a noticeable-enough delay? for a 'visible' property on the listviewitem that I could set to true / false, but that property doesn't appear to exist.As it stands, I have to resort to removing / re-inserting the new 'view' every time.
Is it possible to show only the first 2 columnheaders in tile view of a listviewitem instead of all the definied columnheaders?
View 4 RepliesI have an app with multiple ListViews W/DragnDrop....I want the text that is first in the list to always be BOLDed. My attempt to bold (below) fails saying readOnly...how can I get around this apparently default property?
Private Sub ListView_DragDrop(ByVal sender As Object, ByVal e As _
System.Windows.Forms.DragEventArgs) Handles ListView1.DragDrop, _
ListView2.DragDrop, ListView3.DragDrop, ListView4.DragDrop, ListView5.DragDrop, _
ListView6.DragDrop, ListView7.DragDrop, ListView8.DragDrop, ListView9.DragDrop, _
ListView10.DragDrop, ListView11.DragDrop, ListView12.DragDrop, ListView13.DragDrop, _
[Code] .....
I have multiple listviews. As I click between ListViewItems in listview/s, I want to be able to know which ListViewItem was click so I can then call a procedure.
View 8 RepliesI've got this little problem with my listview Control, I decided I wanted to hide some of my data in each listview item so I inherited from the Listview "DiaryItem".The problem is I'm in this cross threading situation and I cannot seem to overwite one Listviewitem object with another, I'm sure its some sort of refrencing problem as when it goes out of scope(function close) the original data is still present, I know I could add the new data by adding a new ListviewItem and deleting the old one but they must be away around this.
Because of cross threading I could not use Items even though I'm checkign for it. Code:
[Code]...
I want to show a messagebox with the text of a listviewitem that is selected in my listview.
I can do this with this code
MsgBox(MyListView.SelectedItems.items(1).Text)
But the 1 is fixed, how can i do with on the run finding the number of the item that is selected.
I am trying to include some custom events/methods when I Check a ListViewItem. I have my Class and Inherited the ListViewItem, but can not figure out how I can achieve this. I have looked at adding custom event handlers, but don't think that this is an option. [Code]. Essentially what I want is an eventhandler that fires whenever the Checkstate of the listviewitem changes.
View 3 Replies