Adding Checkbox in Treeview Control....

Question

Hi,

I am looking for a source code to add a check box in a treeview control and when selected in one of the parent node it has to select all the child nodes and vice versa.

 

 

 

Answer 1

Hi,

You can have a look at this link:

http://silverlight.net/blogs/justinangel/archive/2008/11/18/silverlight-toolkit-treeview-treeviewitem-amp-hierarchaldatatemplate.aspx

or you can do something like this:

Parent.Header = "Parent";
...
if(Child1.Items.Count > 0)
     Child1.Header = "Child1";
else
     Child1.Header = new CheckBox();

do looping for treeview control to make all the child nodes checked.

Hope this helps you.

Please "Mark as Answer" if this post answered your question. :)

Answer 2

I strongly recommend you read my TreeView article previously linked here.
Basically, You'll need to have a CheckBox databound to some value in a HierarchicalDataTemplate.

We've got a sample for that up on our official Silverlight Toolkit samples:
http://silverlight.net/samples/sl2/toolkitcontrolsamples/run/default.html?path=Controls|TreeView|Using%20CheckBoxes 

 

Answer 3

 I'm also trying to achieve this but my datacontext items don't have a value which I could bind to my checkbox. I want to do another stuff when the checkbox is clicked. Everything else is working for me but I can't seem to find the checkbox control within the TreeViewItem. Do I need to find a way to bind the checkbox to a value or is there a way to find the Checkbox control within the treeviewitem?

Answer 4

You can try something:

TreeViewItem newParent = (TreeViewItem)TreeView1.SelectedItem;

CheckBox chk = (CheckBox)newParent.Header;

HTH

Answer 5

 This didn't work. I have the datacontext item in the Header, no checkbox. I have a datatemplate with a stackpanel and a checkbox and contentpresenter inside it.

Answer 6

I think what Justin Angel suggested will help you.

Answer 7

Yes, that helped. I'm using RIA Services but I extended the EF model class with a custom property and got it binded for the checbox. Now everything works fine. Thanks again.

Answer 8

My pleasure

Answer 9

try this http://usamawahabkhan.blogspot.com/2009/07/treeview-checkbox-databinding.html

Answer 10

You could also use the TreeView control from VectorLight http://www.vectorlight.net/controls/tree_view.aspx

It has some very useful features, and also the ones you mentioned....

Answer 11

Try this i hope it will help http://cid-f945c63857c2af06.skydrive.live.com/self.aspx/.Public/TreeView%20Ischecked%20Checkbox.rar

TreeViewItem Tvitem = new TreeViewItem(); CheckBox CbItem = new CheckBox(); CbItem.Checked += (a,b )=> { Checked(a); }; CbItem.Unchecked += (a,b )=> { Unchecked(a); }; StackPanel Spcpanel = new StackPanel(); CbItem.DataContext = //--data; CbItem.Name = Ldata.ObjectId.ToString(); CbItem.IsChecked = Ldata.Value; CbItem.Foreground = new SolidColorBrush(Colors.Black); Image LSymbol = new Image(); BitmapImage LSymbolsource = new BitmapImage(new Uri(App_Codes.ApplicationConfig.AbsoluteImagePath + Ldata.SymbolRef + ".png", UriKind.Absolute)); LSymbol.Width = 16; LSymbol.Height = 16; LSymbol.Source = LSymbolsource; Spcpanel.Orientation = Orientation.Horizontal; Spcpanel.Children.Add(new Label() { Content = LSymbol,Margin = new Thickness(0,0,4,0) }); Spcpanel.Children.Add(new Label(){Content= Ldata.Name}); CbItem.Content = Spcpanel; Tvitem.Header = (CbItem); return Tvitem;

Answer 12

Hi,

My Problem is similar to yours (That you had earlier), i am unable to add check box in silverlight-4 tree view control. Do i need to add something from xaml because i am loading my tree from .cs. It would be great help if you can share small part of code..

Thank You in Advance

Answer 13

Hello,

Did you check this:

http://www.silverlight.net/content/samples/sl4/toolkitcontrolsamples/run/default.html?path=Controls|TreeView|Using%20CheckBoxes

HTH