Hi Support team!

I have one question...

My example is: I created 3 columns in RadTreeListView ( Name, LastName and Add)

--> I would like to verify if user can mark/check "Add" column based on tag of current row.
--> And after, check if there are items in RadTreeListView checked to enable button.

Please, someone can help me?


See my example:

MainPage.xaml:




<UserControl x:Class="SilverlightApplication1.MainPage"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:local="clr-namespace:SilverlightApplication1"
        xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
        xmlns:nav="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.Navigation"
             mc:Ignorable="d" xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
             Height="257" Width="660"
             xmlns:my="clr-namespace:SilverlightApplication1">

    <UserControl.Resources>
        
        <my:NameList x:Key="comboNamesSource"/>
        
        <telerik:CellTemplate x:Key="firstNameTemplate" >
            <TextBlock Tag="{Binding LastName}" Foreground="#284869" Text="{Binding FirstName}" VerticalAlignment="Center" telerik:StyleManager.Theme="Office_Black" />
        </telerik:CellTemplate>

        <telerik:CellTemplate x:Key="lastNameTemplate">
            <telerik:RadComboBox Tag="{Binding LastName}" Text="{Binding LastName, Mode=TwoWay}" DisplayMemberPath="LastName"  ItemsSource="{Binding Source={StaticResource comboNamesSource}}" IsEditable="True" IsFilteringEnabled="True" IsReadOnly="False" Foreground="#284869"/>
        </telerik:CellTemplate>

        <telerik:CellTemplate x:Key="AddTemplate" >
            <CheckBox  Content="" IsTabStop="False"  VerticalAlignment="Center"  HorizontalAlignment="Center" Margin="0,3,0,3" Click="CellCheckBoxAdd_Click" />
        </telerik:CellTemplate>
        
        <DataTemplate x:Key="itemTemplate">
            <Grid />
        </DataTemplate>
        
    </UserControl.Resources>

    <Grid x:Name="LayoutRoot" Background="White" Margin="0,0,0,0">

        <nav:RadTreeListView Background="White" x:Name="RadTreeListViewTest" BorderBrush="#a9a9a9" BorderThickness="1" HorizontalContentAlignment="Center" Width="556" Height="170"
                         IsDragDropEnabled="False" IsDragPreviewEnabled="False" IsDragTooltipEnabled="False"
                         IsEditable="True"
                         SelectionMode="Single"
                         ItemTemplate="{StaticResource itemTemplate}" IsSingleExpandPath="False" IsExpandOnSingleClickEnabled="True"
                         IsLineEnabled="True" IsExpandOnDblClickEnabled="True">

        <nav:RadTreeListView.Columns>

            <nav:RadColumn Header="First Name" PropertyName="FirstName" Width="200" IsEditable="True" CellTemplate="{StaticResource firstNameTemplate}"/>

            <nav:RadColumn Header="Last Name" PropertyName="LastName" Width="200" IsEditable="False" CellTemplate="{StaticResource lastNameTemplate}"/>

            <nav:RadColumn Header="Add" PropertyName="Add" Width="100" IsEditable="true" CellTemplate="{StaticResource AddTemplate}"/>

            
        </nav:RadTreeListView.Columns>


    </nav:RadTreeListView>
        
        <HyperlinkButton Content="Add" Height="23" HorizontalAlignment="Left" Margin="508,222,0,0" Name="hyperlinkButton1" VerticalAlignment="Top" Width="100" Foreground="Black" Click="hyperlinkButton1_Click" />
   
    </Grid>

</UserControl>
-----------------


MainPage.xaml.cs:





using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.Collections;
using System.Collections.ObjectModel;


namespace SilverlightApplication1
{
    public partial class MainPage : UserControl
    {
        public MainPage()
        {
            InitializeComponent();

            IList itemsSource = new ObservableCollection<object>();
            itemsSource = new NameList();
            this.RadTreeListViewTest.ItemsSource = itemsSource;
        }


        private void CellCheckBoxAdd_Click(object sender, RoutedEventArgs e)
        {
            //Check tag of checked item.

            //If tag = "11", set checkbox.checked = true, else checkbox.checked = false

            SetButtonState();
        }

        private void SetButtonState()
        {
            //Check if there is at least one item in RadTreeListView checked to enable hyperlinkButton1
            //??


            //this.hyperlinkButton1.IsEnabled = false;
        }

        private void hyperlinkButton1_Click(object sender, RoutedEventArgs e)
        {
           //Do nothing...
        }


    }
}


-------------------
NameList.cs:


using System;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.Collections.ObjectModel;
using System.ComponentModel;

namespace SilverlightApplication1
{
    public class NameList : ObservableCollection<PersonName>
    {
        public NameList()
            : base()
        {
            Add(new PersonName("A", "11"));
            Add(new PersonName("B", "22"));
            Add(new PersonName("C", "33"));
            Add(new PersonName("D", "44"));
            Add(new PersonName("E", "55"));
        }
    }

    public class PersonName
    {
        public PersonName(string first, string last)
        {
            this.firstName = first;
            this.lastName = last;
        }

        private String firstName;
        public String FirstName
        {
            get
            {
                return this.firstName;
            }
        }

        private String lastName;
        public String LastName
        {
            get
            {
                return this.lastName;
            }
           
        }
    }

}