placeholder wpf

1/*In xaml*/
2<!-- Place holder text  -->
3        <TextBlock IsHitTestVisible="False" Text="Change text" VerticalAlignment="Top" HorizontalAlignment="Left" TextAlignment="Left" Margin="454,352,0,0" FontSize="40" Foreground="DarkGray" Width="352" Height="47">
4            <TextBlock.Style>
5                <Style TargetType="{x:Type TextBlock}">
6                    <Style.Triggers>
7                        <DataTrigger Binding="{Binding Text,ElementName=/*Enter the text box to bind to*/}" Value="">
8                            <Setter Property="Visibility" Value="Visible" />
9                        </DataTrigger>
10                    </Style.Triggers>
11                    <Setter Property="Visibility" Value="Hidden" />
12                </Style>
13            </TextBlock.Style>
14        </TextBlock>
15        <!-- Place holder text end  -->

1<TextBox
2                        x:Name="tbxSeach"
3                        Grid.Row="0"
4                        Grid.Column="0"
5                        Height="25"
6                        Margin="10,0,10,0"
7                        HorizontalAlignment="Stretch"
8                        VerticalAlignment="Bottom"
9                        VerticalContentAlignment="Center"
10                        Text="{Binding SearchText, UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}"
11                        TextAlignment="Left">
12                        <TextBox.Resources>
13                            <VisualBrush
14                                x:Key="hinttext"
15                                AlignmentX="Left"
16                                Stretch="None"
17                                TileMode="None">
18                                <VisualBrush.Visual>
19                                    <TextBlock
20                                        FontStyle="Italic"
21                                        Foreground="#959595"
22                                        Text="Search..." />
23                                </VisualBrush.Visual>
24                            </VisualBrush>
25                        </TextBox.Resources>
26                        <TextBox.Style>
27                            <Style BasedOn="{StaticResource TextBoxBase}" TargetType="TextBox">
28                                <Setter Property="VerticalAlignment" Value="Center" />
29                                <Setter Property="FontSize" Value="12" />
30                                <Setter Property="Background" Value="Transparent" />
31                                <Style.Triggers>
32                                    <Trigger Property="Text" Value="">
33                                        <Setter Property="Background" Value="{StaticResource hinttext}" />
34                                    </Trigger>
35
36                                    <Trigger Property="Text" Value="{x:Null}">
37                                        <Setter Property="Background" Value="{StaticResource hinttext}" />
38                                    </Trigger>
39                                </Style.Triggers>
40                            </Style>
41                        </TextBox.Style>
42                    </TextBox>