I have a listbox, this listbox contains numbers. (ID's) A timer should check this listbox every mintue, and for every newly added ID, add a webbrowsercontrol to the Form, with 100% width and hight.. So if for example after 5 Minutes I have 3 Items in the listbox, I need to have 3 Webbrowsercontrols one on top of the other. These webbrowsercontrols need to be called in a way that I recognize which one is what. for example: wbcontrol_ID so that I can selectively bring to front the one I currently need. (wbcontrol_ID.BringToFront()) The code also needs to verify that the Webbrowsercontrol has not been generated already, else it will create them over and over again.
This is my code of the timer so far:
Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick
fillitemsinlistbox()
For Each r In ListBox1.Items
dim mybrowser as new webbrowser
Next
End Sub
And here I am stuck.
Related
Private Sub ComboBox2_SelectedIndexChanged(sender As Object, e As EventArgs) Handles ComboBox2.SelectedIndexChanged
ListView2.Items.Clear()
Dim curSelectionCombobox As String = ComboBox2.SelectedItem.ToString()
ListView2.Items.Add(listitm)
End Sub
Well basically this is what ive come up with the filtering thing in combobox which is obviously wont work
and in the combobox and button i didnt get to try coding those but im quite sure it wont work either im new in this language and im struggling to catch up giving the fact that this pandemic really gets me more and more stupider as the day passed by
Well my main problem is that the filtering in the groupBox_bookShelf is when i choose a genre in the combobox the static listview will filter leaving only the exact items its genre selected in the combobox
the second is the combobox and button im aiming to link the action of both property when filing in the groupBox_bookInformation then once the filter button is clicked i want to filter the lower listview leaving only the selected genre and its items
Here is the sample form ive been working on.
enter image description here
I am guessing that what is selected in the combo box is a value that appears in some of your list view items.
Start by calling .BeginUpdate() This will prevent the user interface from repainting on each update which would really slow things down.
I loop through the items and test one of the sub items to see if it matches the combo selection. If it does not match is is removed.
Be sure to call .EndUpdate or the changes will not show up.
Private Sub ComboBox2_SelectedIndexChanged(sender As Object, e As EventArgs) Handles ComboBox2.SelectedIndexChanged
Dim curSelectionCombobox As String = ComboBox2.SelectedItem.ToString()
ListView2.BeginUpdate()
For Each lvi As ListViewItem In ListView2.Items
If lvi.SubItems(6).Text <> curSelectionCombobox Then
lvi.Remove()
End If
Next
ListView2.EndUpdate()
End Sub
How do I make it so that the user can't select the first two items in a list box. I'm trying to make a program that runs when the user changes their selected index, but the first two items are going to be headings for a table so I do not want the program to run if the user tries to select them.
You could just unselect them again:
Private Sub ListBox1_SelectedIndexChanged(sender As Object, e As EventArgs) Handles ListBox1.SelectedIndexChanged
If ListBox1.SelectedIndex < 2 Then
If ListBox1.Items.Count < 2 Then
ListBox1.SelectedIndex = -1
Else
ListBox1.SelectedIndex = 2
End If
End If
End Sub
It does have -5 elegance points, the kind you can get back by using a Label above the ListBox or by using a ListView instead.
As with Hans' answer, it's not very clean but might I suggest:
ListBox1.RemoveAt(0)
ListBox1.RemoveAt(1)
It won't work if the list is databound, but if that's the case then you might like to try
ListBox1.DataSource = linqQuery.Skip(2).ToList()
I've had such fantastic help so far. I've got a listbox that automatically populates with the folder names of the path that the user browses to. When the browse button is clicked and the listbox populates the first folder is automatically selected:
ListBox1.SetSelected(0, True)
Next I wrote some code so that if the user tries to unselect the only folder, then it holds its selected state:
Private Sub ListBox1_SelectedIndexChanged(sender As Object, e As EventArgs) Handles ListBox1.SelectedIndexChanged
If ListBox1.SelectedItems.Count = 1 Then
My.Settings.Index1 = ListBox1.SelectedItem
End If
If ListBox1.SelectedItems.Count = 0 Then
ListBox1.SetSelected(My.Settings.Index1, True)
End If
End Sub
However, ideally I need to hold the indices of all selected items in memory so that when the form reloads I can restore the selection along with the list box items. I think I would like to do this when the item count is greater than one. But I need some suggestions on how to do this. Not necessarily examples, but just the methodology or approach so I can make an attempt. Many thanks!!!
I am currently working on a project that is giving me some issues. I am using a listbox that has predetermined information in its index items. When I select a item, a second form appears that gives the information about that line. Example:
List Box Selected items = Bob -----> Second form all Labels - Bob, work ID number, Job title and phone number.
the information can not be changed and is part of an array. I have the array set up and everything is ready to go except I can not figure out how to get the information to the second form.
Any help would be greatly appreciated
Try this
Private Sub ListBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged
Dim xFrm As New Form2
xFrm.Label1.Text = ListBox1.SelectedItem
xFrm.Show()
End Sub
In VB 2008 I created 2 list box. The first list box is to load all the data in my database in a specific row, the other list box is when I double click on the data/item on the first list box the specific data/item need to be transfer to the second list box.
I manage to transfer the data, but the output it gave was wrong. Instead of the actual name of the given data/item the output it gave was System.Data.DataRowView. I tried using .ToString() but nothing happens. I used the drag and drop method for the data adapter connection and the database I'm using is MySQL. I use the "Use data bound items" on list box 1.
You should do it like this,
Private Sub ListBox1_DoubleClick(sender As Object, e As EventArgs) _
Handles ListBox1.DoubleClick
' checks if the item is empty
If ListBox1.SelectedItem.ToString.Length <> 0 Then
' adds on listbox 2
ListBox2.Items.Add(ListBox1.Text)
End If
End Sub
See this,
with simple code you can use this
Private Sub ListBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged
ListBox2.Items.Add(ListBox1.SelectedItem)
End Sub