Solved

ListboxItem Layout based on listbox width/select style

Posted on 2010-09-14
5
607 Views
Last Modified: 2013-11-12
Hi All,

is it possible to set listboxitem layout based on listbox layout? attached you find an example of what i'd like to reach

listbox with 3 label:
1 select char: I'd like do not have the normal select style, no background color change
2 text
3 text right aligned

is it possible? wanted layout
0
Comment
Question by:Lukino2000
  • 4
5 Comments
 
LVL 29

Expert Comment

by:Gautham Janardhan
ID: 33674443
see sample xaml and code
<Grid>

        <Grid.Resources>
            <local:MyConverter x:Key="temp"/>
            <Style TargetType="{x:Type ListBoxItem}">
                <Setter Property="IsSelected" Value="{Binding IsSelected}"/>
            </Style>
        </Grid.Resources>
        <ListBox x:Name="temp" SelectedItem="{Binding SelectedItem}">
            <ListBox.Style>
                <Style TargetType="{x:Type ListBox}">
                    <Style.Resources>
                        <!-- Background of selected item when focussed -->
                        <SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}" Color="White" />
                        <SolidColorBrush x:Key="{x:Static SystemColors.HighlightTextBrushKey}" Color="Black" />
                    </Style.Resources>
                    <Setter Property="Template">
                        <Setter.Value>
                            <ControlTemplate TargetType="ListBox">
                                <Border CornerRadius="5" Background="{TemplateBinding ListBox.Background}">
                                    <ScrollViewer HorizontalScrollBarVisibility="Auto">
                                        <StackPanel Orientation="Vertical"
                       VerticalAlignment="Center"
                       HorizontalAlignment="Center"
                       IsItemsHost="True"/>
                                    </ScrollViewer>
                                </Border>
                            </ControlTemplate>
                        </Setter.Value>
                    </Setter>
                </Style>
            </ListBox.Style>
            <ListBox.ItemTemplate>
                <DataTemplate>
                    <StackPanel Orientation="Horizontal">
                        <TextBlock Width="25" Text=">" Visibility="{Binding Mode=TwoWay, Path=IsSelected,Converter={StaticResource temp}}"/>
                        <TextBlock Width="75" Text="{Binding Name}"/>
                        <TextBlock Width="75" HorizontalAlignment="Right" Text="{Binding Value}"/>
                    </StackPanel>
                </DataTemplate>
            </ListBox.ItemTemplate>

        </ListBox>

    </Grid>

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LVL 29

Expert Comment

by:Gautham Janardhan
ID: 33674447
code behind
temp.DataContext = this;

            temp.ItemsSource = new List<object>()
            {
                new Item{ Name ="4PB" ,Value =12,IsSelected = false},
                new Item{ Name ="4B" ,Value =19,IsSelected = false },
                new Item {Name ="M12B" ,Value =3,IsSelected = false }
            };



public class Item :INotifyPropertyChanged
    {

        private bool _isSelected;
        public bool IsSelected
        {
            get
            {
                return _isSelected;
            }
            set
            {
                _isSelected = value;
                NotifyPropertyChanged("IsSelected");
            }
        }

        private int _value;
        public int Value
        {
            get
            {
                return _value;
            }
            set
            {
                _value = value;
                NotifyPropertyChanged("Value");
            }
        }
        private string _name;
        public string Name
        {
            get
            {
                return _name;
            }
            set
            {
                _name = value;
                NotifyPropertyChanged("Name");
            }
        }

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

        #region INotifyPropertyChanged Members

        public event PropertyChangedEventHandler PropertyChanged;

        #endregion
    }

    public class MyConverter : IValueConverter
    {

        #region IValueConverter Members



        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {

            return ((bool)value) ? Visibility.Visible : Visibility.Hidden;

        }



        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {

            throw new NotImplementedException();

        }



        #endregion

    }

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Author Comment

by:Lukino2000
ID: 33704341
Sorry gauthampj,

your solution would work but it has hardcoded the width of elements. Can you provide please a solution that adapts itself at the width of listbox?
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LVL 29

Expert Comment

by:Gautham Janardhan
ID: 33704390
are you talking about the width of the text blocks ?
0
 
LVL 29

Accepted Solution

by:
Gautham Janardhan earned 500 total points
ID: 33704431
if so then replace the template with this
<DataTemplate>

                    <Grid>

                        <Grid.ColumnDefinitions>

                            <ColumnDefinition />

                            <ColumnDefinition />

                            <ColumnDefinition />

                        </Grid.ColumnDefinitions>

                        <TextBlock Grid.Column="0" Text=">" Visibility="{Binding Mode=TwoWay, Path=IsSelected,Converter={StaticResource temp}}"/>

                        <TextBlock Grid.Column="1" Text="{Binding Name}"/>

                        <TextBlock Grid.Column="2" HorizontalAlignment="Right" Text="{Binding Value}"/>

                    </Grid>

                </DataTemplate>

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