How can i get all checked items and values in RadTreeView on client side?

Question

I have the RadTreeView in the RadCombobox. I need to create function using javascipt because i want to read all checked items and their values after closing of the RadComboBox.

How can i get all checked items and values using javascript?

This is my source code:

function OnClientDropDownClosed()
        {
            //Foreach all checked items and save to array 
            //I want to need for example: Text: John Black, Value: 1
        }

<telerik:RadComboBox ID="RadComboBox1" OnClientDropDownClosed="OnClientDropDownClosed" runat="server" Width="500px" ShowToggleImage="True"
                ExpandAnimation-Type="None"
                CollapseAnimation-Type="None">
                <ItemTemplate>
                    <div id="div1">
                        <telerik:RadTreeView runat="server" ID="RadTreeView1" CheckBoxes="true" Width="100%"
                            Height="140px" TriStateCheckBoxes="true">
                            <Nodes>
                                <telerik:RadTreeNode runat="server" Text="Company" Value="9" Expanded="true">
                                    <Nodes>
                                        <telerik:RadTreeNode runat="server" Text="Employees A" Value="10" Expanded="true">
                                            <Nodes>
                                                <telerik:RadTreeNode runat="server" Value="1" Text="John Black">
                                                </telerik:RadTreeNode>

                                                <telerik:RadTreeNode runat="server" Value="2" Text="Peter Snopy">
                                                </telerik:RadTreeNode>

                                                <telerik:RadTreeNode runat="server" Value="3" Text="George New">
                                                </telerik:RadTreeNode>

                                                <telerik:RadTreeNode runat="server" Value="4" Text="William Wall">
                                                </telerik:RadTreeNode>
                                            </Nodes>
                                        </telerik:RadTreeNode>

                                        <telerik:RadTreeNode runat="server" Text="Employees B" Value="11" Expanded="true">
                                            <Nodes>
                                                <telerik:RadTreeNode runat="server" Value="5" Text="John Black">
                                                </telerik:RadTreeNode>

                                                <telerik:RadTreeNode runat="server" Value="6" Text="Peter Snopy">
                                                </telerik:RadTreeNode>

                                                <telerik:RadTreeNode runat="server" Value="7" Text="George New">
                                                </telerik:RadTreeNode>

                                                <telerik:RadTreeNode runat="server" Value="8" Text="William Wall">
                                                </telerik:RadTreeNode>
                                            </Nodes>
                                        </telerik:RadTreeNode>
                                    </Nodes>
                                </telerik:RadTreeNode>
                            </Nodes>
                        </telerik:RadTreeView>
                    </div>
                </ItemTemplate>
                <Items>
                    <telerik:RadComboBoxItem Text="" />
                </Items>
            </telerik:RadComboBox>

Answer 1

if I understood your question right you want to add the checked Nodes text and Value to an array in javacript , here is the Solution:

function OnClientDropDownClosed(sender, eventArgs)
{ 
var arr_of_nodes = new Array();

 var tree=sender.get_items().getItem(0).findControl("RadTreeView1");
 var treenodes=tree.get_nodes(); 
  for (i=0; i<treenodes.get_count(); i++) 
   { 

       if (treenodes.getNode(i).get_checked()) 
       { 
        var _nodeText=treenodes.getNode(i).get_text();
        var _nodeValue=treenodes.getNode(i).get_value();
       arr_of_nodes.push(_nodeText+":"+_nodeValue);

       } 
   } 
 //do something with the array arr
}