How to change style of ToolTip according to variable in code

[Pavel]

My code:

MainWindow.xaml

<Window x:Class="TestStyle.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
        xmlns:telerikGrid="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.GridView"
        Title="MainWindow" Height="350" Width="525">
    <StackPanel>
    <StackPanel Orientation="Horizontal" HorizontalAlignment="Center">
        <telerik:RadButton Width="150" Content="Add new row"
                    Command="telerikGrid:RadGridViewCommands.BeginInsert"
                    CommandTarget="{Binding ElementName=RadGridView1}"  />
    </StackPanel>
    <telerikGrid:RadGridView
                     SelectionMode="Single"
                     AddingNewDataItem="RadGridView1_AddingNewDataItem"
                     x:Name="RadGridView1"
                     AutoGenerateColumns="False">
            <telerikGrid:RadGridView.Columns>
                <telerikGrid:GridViewComboBoxColumn Header="Screen"
                                        UniqueName="Screen"
                                        x:Name="screen"
                                        DataMemberBinding="{Binding IdGrid}"
                                        DisplayMemberPath="Name"
                                        SelectedValueMemberPath="IdListBox" >
                <telerikGrid:GridViewComboBoxColumn.ItemTemplate>
                    <DataTemplate>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="{Binding Name}" x:Name="textblockTooltip" Width="Auto" Padding="1,1,1,1" >
                            <TextBlock.ToolTip>
                            <ToolTip>
                                    <ToolTip.Template>
                                    <ControlTemplate TargetType="ToolTip">
                                      <Border CornerRadius="2,2,2,2" Width="100" Height="75" x:Name="borderTooltip" Background="Green" BorderBrush="#FF000000" Margin="2">
                                       <ContentPresenter Content="{Binding GridView}" Margin="2" />
                                      </Border>
                                    </ControlTemplate>
                                    </ToolTip.Template>
                            </ToolTip>
                            </TextBlock.ToolTip>
                            </TextBlock>
                        </StackPanel>
                    </DataTemplate>
                </telerikGrid:GridViewComboBoxColumn.ItemTemplate>
            </telerikGrid:GridViewComboBoxColumn>
        </telerikGrid:RadGridView.Columns>
    </telerikGrid:RadGridView>
    </StackPanel>
</Window>

MainWindow.xaml.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Collections.ObjectModel;
using Telerik.Windows.Controls;

namespace TestStyle
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {

        bool resolution = false;

        public bool Resolution
        {
            get { return resolution; }
            set { resolution = value; }
        }

        public MainWindow()
        {
            InitializeComponent();

            ICommand beginInsertCommand = RadGridViewCommands.BeginInsert;

            ObservableCollection<ItemGrid> collectionGrid = new ObservableCollection<ItemGrid>();
            RadGridView1.ItemsSource = collectionGrid;

            ObservableCollection<ItemListBox> collectionListBox = new ObservableCollection<ItemListBox>();

            Label l1 = new Label();
            l1.Content = "Label 1";
            Label l2 = new Label();
            l2.Content = "Label 2";
            Grid gr1 = new Grid();
            gr1.Children.Add(l1);
            Grid gr2 = new Grid();
            gr2.Children.Add(l2);

            collectionListBox.Add(new ItemListBox(1, "Name 1", gr1));
            collectionListBox.Add(new ItemListBox(2, "Name 2", gr2));
            screen.ItemsSource = collectionListBox;
        }

        private void RadGridView1_AddingNewDataItem(object sender, Telerik.Windows.Controls.GridView.GridViewAddingNewEventArgs e)
        {
            e.NewObject = new ItemGrid(0);
        }
    }
}

ItemGrid.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Controls;
using System.ComponentModel;

namespace TestStyle
{
    class ItemGrid : INotifyPropertyChanged
    {
        public event PropertyChangedEventHandler PropertyChanged;

        private int idGrid;

        public int IdGrid
        {
            get { return idGrid; }
            set { idGrid = value; NotifyPropertyChanged("IdGrid"); }
        }

        public ItemGrid(int id)
        {
            this.idGrid = id;
        }

        private void NotifyPropertyChanged(string info)
        {
            if (PropertyChanged != null)
                PropertyChanged(this, new PropertyChangedEventArgs(info));
        }
    }
}

ItemListBox.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Controls;
using System.ComponentModel;

namespace TestStyle
{
    class ItemListBox : INotifyPropertyChanged
    {
        public event PropertyChangedEventHandler PropertyChanged;

        int idListBox;

        public int IdListBox
        {
            get { return idListBox; }
            set { idListBox = value; NotifyPropertyChanged("IdListBox"); }
        }

        string name;

        public string Name
        {
            get { return name; }
            set { name = value; NotifyPropertyChanged("Name"); }
        }

        Grid gridView;

        public Grid GridView
        {
            get { return gridView; }
            set { gridView = value; NotifyPropertyChanged("GridView"); }
        }

        public ItemListBox(int idListBox, string name, Grid gridView)
        {
            this.idListBox = idListBox;
            this.gridView = gridView;
            this.name = name;
        }

        private void NotifyPropertyChanged(string info)
        {
            if (PropertyChanged != null)
                PropertyChanged(this, new PropertyChangedEventArgs(info));
        }
    }
}

I need to change Height property at Border "borderTooltip" according to value of property Resolution in ManWindow.xaml.cs.

I tried in constructor MainWindow() this:

if (Resolution == true)
    borderTooltip.Height = 75;
else
    borderTooltip.Height = 50;

But i can´t access borderTooltip in code.Does somebody know please how to change borderTooltip.Height according to value of Resolution property?

[Vanya Pavlova]

Hello Pavel,

 
Why not use ToolTipTemplateSelector as it is shown in the following online demo?
Also you need to ensure that this Resolution property is a property of your custom object and based on its value just return the desired tooltip.
Please let me know if you need any further assistance.
 

All the best,
Vanya Pavlova
the Telerik team

[Pavel]

Thanks for response. I tried to use ToolTipTemplateSelector, but that is not working at all. I don´t need that ToolTip for GridViewComboBoxColumn, but I need that ToolTip for items in GridViewComboBox. I uploaded source codes of that application if you would like to look at it. 

EDIT:// Can´t attach zip file, so I uploaded it here

[Vanya Pavlova]

Hi Pavel,

You can pass the property through the data context - meaning you have to create properties on the items that are provided for ItemsSource and synchronize them OR you can create a dependency property on the window and bind to it using 'FindAncestor' binding like I did in the attached project. I hope it solves your problem.

In general the data within the popup should be responsible for stretching the tooltip so I can not imagine a good reason to pass such data that will justify a layout behavior.

Regards,
Vanya Pavlova
the Telerik team

[Pavel]

That´s great. Thank you very much for yur help.