In my ASP.NET application I have two listboxes, say Listbox1 and Listbox2. Listbox1 having some listitems and which is in Multiple Selection Mode. If I Press the transfer button the selected items in Listbox1 should be moved to Listbox2. I have tried it for Single Selection Move and it works fine. Now I need help for multiselection.
Code for Single Selection
strItemText = lstAvailableItems.SelectedItem.Text
iItemCode = lstAvailableItems.SelectedValue
lstAvailableItems.Items.Remove(New ListItem(strItemText, iItemCode))
lstSelectedItems.Items.Add(New ListItem(strItemText, iItemCode))
Listbox image
If I press the > button single selected item will be moved from Available Items listbox to selected items list box. How to do this for multiple selection?
A combination of my original, and @Arman's.
Dim lstRemoveItem As New List(Of ListItem)
For Each li As ListItem In lstAvailableItems.Items
If li.Selected Then
lstRemoveItem.Add(New ListItem(li.Text, li.Value))
' can't remove from the collection while looping through it
End If
Next
For Each li As ListItem In lstRemoveItem
lstSelectedItems.Items.Add(li) ' add to "selected" items
lstAvailableItems.Items.Remove(li) ' remove from the original available items
Next
Use List. Iterate all items in the listbox and whatever it finds to be selected, add it to the list.
Dim lstRemoveItem As New List(Of ListItem)
For Each _item As ListItem In lstAvailableItems.Items
If _item.Selected Then
lstRemoveItem.Add(_item)
'here, method to add item to the first list.
End If
Next
For Each _item As ListItem In lstRemoveItem
lstSelectedItems.Items.Add(_item)
Next
Not exactly what you want, but you can configure the variables easily.
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