Is it possible to rearrange tab items in tab control in run time? For example I have 3 tab items which are about cars and 4 tabs about house. I want to be able to rearrange them
When I tried to implement this solution, the drop event was firing twice (moving the tabs but them immediately moving them back). I had to add an integer to keep track of the last tab target index. My solution is in VB.NET
'additional variable
Dim lastTabTargetIndex As Integer = Nothing
Private Sub tc1_PreviewMouseMove(sender As Object, e As MouseEventArgs) Handles tc1.PreviewMouseMove
Dim Tabi = TryCast(e.Source, TabItem)
If Tabi Is Nothing Then
Exit Sub
Else
If Mouse.PrimaryDevice.LeftButton = MouseButtonState.Pressed Then
DragDrop.DoDragDrop(Tabi, Tabi, DragDropEffects.All)
End If
End If
End Sub
Private Sub tc1_Drop(sender As Object, e As DragEventArgs) Handles tc1.Drop
Dim tabItemTarget = TryCast(e.Source, TabItem)
Dim tabItemSource = TryCast(e.Data.GetData(GetType(TabItem)), TabItem)
If Not tabItemTarget.Equals(tabItemSource) Then
Dim tabControl = TryCast(tabItemTarget.Parent, TabControl)
Dim sourceIndex As Integer = tabControl.Items.IndexOf(tabItemSource)
Dim targetIndex As Integer = tabControl.Items.IndexOf(tabItemTarget)
'had to use this extra statement
If sourceIndex <> lastTabTargetIndex Then
'assign lastTabTargetIndex here
lastTabTargetIndex = targetIndex
tabControl.Items.Remove(tabItemSource)
tabControl.Items.Insert(targetIndex, tabItemSource)
tabControl.Items.Remove(tabItemTarget)
tabControl.Items.Insert(sourceIndex, tabItemTarget)
End If
End If
End Sub