In this example I’ve used four of the icons that ship with Windows. Then, you can add some images to the ImageList. This will constrain the size of all images and – assuming you’ve picked suitable original images – will make the finished icons look better. Once created, you can set various properties, including the ImageSize property as shown above. ' Create a new ImageList Dim MyImages As New ImageList() You can do this by dragging one from the Toolbox and setting its properties in the Properties pane. The next step is to create an ImageList control. An index that points to the image to be shown when this node is the selected node.Īt the moment, the values of the two indexes won’t actually cause images to display because I haven’t yet created the required image list.An index that points to the image to be shown by default with this node.
The four child nodes that are created next each have : There are other overloads of this constructor that will let you add further detail but I’m omitting those for simplicity. ' Optionally ensure all are visible at the startįirst, it creates a new node and gives it some text to display. ' Add this node and its children to the TreeView ( "Change 1", "Info to Exclamation", 0, 1) ( "No change", "No change when selected", 0, 0)
TreeView1.ItemsSource = TreeViewModel.' Create Node Dim Node1 As TreeNode = New TreeNode( "System Icons Demo") Private void Window_Loaded(object sender, RoutedEventArgs e) Public event Propert圜hangedEventHandler Propert圜hanged Propert圜hanged(this, new Propert圜hangedEventArgs(info)) List selected = new List(TreeViewModel.GetTree()) From your window capture selected your treeview control like: TreeViewModel root = (TreeViewModel)TreeViewControl.Items select = recursive method to check each tree view item for selection (if required) (new TreeViewModel("GreatGrandChild4-2-1")) TreeViewModel grtGrdChild2 = (new TreeViewModel("GrandChild4-2")) Tv.Children.Add(new TreeViewModel("Child5")) Tv.Children.Add(new TreeViewModel("Child3")) Tv.Children.Add(new TreeViewModel("Child2")) Tv.Children.Add(new TreeViewModel("Child1")) TreeViewModel tvChild4 = new TreeViewModel("Child4") Doing this below for this example, you should do it dynamically Perform recursive method to build treeview TreeViewModel tv = new TreeViewModel(topLevelName) If (updateParent & _parent != null) _parent.Verif圜heckedState() įor (int i = 0 i SetTree(string topLevelName) If (updateChildren & _isChecked.HasValue) Children.ForEach(c => c.SetIsChecked(_isChecked, true, false)) Void SetIsChecked(bool? value, bool updateChildren, bool updateParent) using my code, only single checking and unchecking possible i have a code but this not working properly. If i click the select_all checkbox i must get all the subcheckboxes checked and if select_all unchecked all the other should be unchecked. How to Checking and unchecking all checkboxes in a treeviewĪre you looking for a way to Checking and unchecking all checkboxes in a treeview ? then read this thread to know how to do it