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Posted 1 Mar 2016

Custom Datepicker Style WPF

, 2 Mar 2016
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Customize datepicker style in WPF

Introduction

This tip is about how to change dafault style and size of datepicker in WPF.

Using the Code

To change default datepicker style, we need to create a new style for datepicker in WPF as given below:

<Style x:Key="DatePickerStyle1" TargetType="{x:Type DatePicker}">
        <Setter Property="Foreground" Value="#FF333333"/>
        <Setter Property="IsTodayHighlighted" Value="True"/>
        <Setter Property="SelectedDateFormat" Value="Short"/>
        <Setter Property="Background" Value="Transparent"/>
        <Setter Property="Padding" Value="2"/>
        <Setter Property="BorderBrush">
            <Setter.Value>
                <LinearGradientBrush EndPoint=".5,0" StartPoint=".5,1">
                    <GradientStop Color="#FFA3AEB9" Offset="0"/>
                    <GradientStop Color="#FF8399A9" Offset="0.375"/>
                    <GradientStop Color="#FF718597" Offset="0.375"/>
                    <GradientStop Color="#FF617584" Offset="1"/>
                </LinearGradientBrush>
            </Setter.Value>
        </Setter>
        <Setter Property="BorderThickness" Value="1"/>
        <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type DatePicker}">
                    <Border BorderBrush="{TemplateBinding BorderBrush}" 

                    BorderThickness="{TemplateBinding BorderThickness}" 

                    Background="{TemplateBinding Background}" 

                    Padding="{TemplateBinding Padding}">
                        <VisualStateManager.VisualStateGroups>
                            <VisualStateGroup x:Name="CommonStates">
                                <VisualState x:Name="Normal"/>
                                <VisualState x:Name="Disabled">
                                    <Storyboard>
                                        <DoubleAnimation Duration="0" To="1" 

                                        Storyboard.TargetProperty="Opacity" 

                                        Storyboard.TargetName="PART_DisabledVisual"/>
                                    </Storyboard>
                                </VisualState>
                            </VisualStateGroup>
                        </VisualStateManager.VisualStateGroups>
                        <Grid x:Name="PART_Root" 

                        HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" 

                        VerticalAlignment="{TemplateBinding VerticalContentAlignment}">
                            <Grid.Resources>
                                <SolidColorBrush x:Key="DisabledBrush" 

                                Color="#A5FFFFFF"/>
                                <ControlTemplate x:Key="DropDownButtonTemplate" 

                                TargetType="{x:Type Button}">
                                    <Grid>
                                        <VisualStateManager.VisualStateGroups>
                                            <VisualStateGroup x:Name="CommonStates">
                                                <VisualStateGroup.Transitions>
                                                    <VisualTransition GeneratedDuration="0"/>
                                                    <VisualTransition GeneratedDuration="0:0:0.1"

                                                    To="MouseOver"/>
                                                    <VisualTransition GeneratedDuration="0:0:0.1" 

                                                    To="Pressed"/>
                                                </VisualStateGroup.Transitions>
                                                <VisualState x:Name="Normal"/>
                                                <VisualState x:Name="MouseOver">
                                                    <Storyboard>
                                                        <ColorAnimation Duration="0" 

                                                        To="#FF448DCA" 

                                                        Storyboard.TargetProperty="(Border.Background).
                                                        (SolidColorBrush.Color)" 

                                                        Storyboard.TargetName="Background"/>
                                                        <ColorAnimationUsingKeyFrames BeginTime="0" 

                                                        Duration="00:00:00.001" 

                                                        Storyboard.TargetProperty="(Border.Background).
                                                        (GradientBrush.GradientStops)[3].
                                                        (GradientStop.Color)" 

                                                        Storyboard.TargetName="BackgroundGradient">
                                                            <SplineColorKeyFrame KeyTime="0" 

                                                            Value="#7FFFFFFF"/>
                                                        </ColorAnimationUsingKeyFrames>
                                                        <ColorAnimationUsingKeyFrames BeginTime="0" 

                                                        Duration="00:00:00.001" 

							Storyboard.TargetProperty="
                                                        (Border.Background).
							(GradientBrush.GradientStops)[2].
                                                        (GradientStop.Color)" 

                                                        Storyboard.TargetName="BackgroundGradient">
                                                            <SplineColorKeyFrame KeyTime="0" 

                                                            Value="#CCFFFFFF"/>
                                                        </ColorAnimationUsingKeyFrames>
                                                        <ColorAnimationUsingKeyFrames BeginTime="0" 

                                                        Duration="00:00:00.001" 

							Storyboard.TargetProperty=
                                                        "(Border.Background).
                                                        (GradientBrush.GradientStops)[1].
                                                        (GradientStop.Color)" Storyboard.TargetName=
                                                        "BackgroundGradient">
                                                            <SplineColorKeyFrame KeyTime="0" 

                                                            Value="#F2FFFFFF"/>
                                                        </ColorAnimationUsingKeyFrames>
                                                    </Storyboard>
                                                </VisualState>
                                                <VisualState x:Name="Pressed">
                                                    <Storyboard>
                                                        <ColorAnimationUsingKeyFrames BeginTime="0" 

                                                        Duration="00:00:00.001" 

                                                        Storyboard.TargetProperty="(Border.Background).
                                                        (SolidColorBrush.Color)" 

                                                        Storyboard.TargetName="Background">
                                                            <SplineColorKeyFrame KeyTime="0" 

                                                            Value="#FF448DCA"/>
                                                        </ColorAnimationUsingKeyFrames>
                                                        <DoubleAnimationUsingKeyFrames BeginTime="0" 

                                                        Duration="00:00:00.001" 

                                                        Storyboard.TargetProperty=
                                                        "(UIElement.Opacity)" 

                                                        Storyboard.TargetName="Highlight">
                                                            <SplineDoubleKeyFrame KeyTime="0" 

                                                            Value="1"/>
                                                        </DoubleAnimationUsingKeyFrames>
                                                        <ColorAnimationUsingKeyFrames BeginTime="0" 

                                                        Duration="00:00:00.001" 

                                                        Storyboard.TargetProperty="(Border.Background).
                                                        (GradientBrush.GradientStops)[1].
                                                        (GradientStop.Color)" 

                                                        Storyboard.TargetName="BackgroundGradient">
                                                            <SplineColorKeyFrame KeyTime="0" 

                                                            Value="#EAFFFFFF"/>
                                                        </ColorAnimationUsingKeyFrames>
                                                        <ColorAnimationUsingKeyFrames BeginTime="0" 

                                                        Duration="00:00:00.001" 

                                                        Storyboard.TargetProperty="(Border.Background).
                                                        (GradientBrush.GradientStops)[2].
                                                        (GradientStop.Color)" 

                                                        Storyboard.TargetName="BackgroundGradient">
                                                            <SplineColorKeyFrame KeyTime="0" 

                                                            Value="#C6FFFFFF"/>
                                                        </ColorAnimationUsingKeyFrames>
                                                        <ColorAnimationUsingKeyFrames BeginTime="0" 

                                                        Duration="00:00:00.001" 

                                                        Storyboard.TargetProperty="(Border.Background).
                                                        (GradientBrush.GradientStops)[3].
                                                        (GradientStop.Color)" 

                                                        Storyboard.TargetName="BackgroundGradient">
                                                            <SplineColorKeyFrame KeyTime="0" 

                                                            Value="#6BFFFFFF"/>
                                                        </ColorAnimationUsingKeyFrames>
                                                        <ColorAnimationUsingKeyFrames BeginTime="0" 

                                                        Duration="00:00:00.001" 

                                                        Storyboard.TargetProperty="(Border.Background).
                                                        (GradientBrush.GradientStops)[0].
                                                        (GradientStop.Color)" 

                                                        Storyboard.TargetName="BackgroundGradient">
                                                            <SplineColorKeyFrame KeyTime="0" 

                                                            Value="#F4FFFFFF"/>
                                                        </ColorAnimationUsingKeyFrames>
                                                    </Storyboard>
                                                </VisualState>
                                                <VisualState x:Name="Disabled"/>
                                            </VisualStateGroup>
                                        </VisualStateManager.VisualStateGroups>
                                        <Grid Background="#11FFFFFF" 

                                        FlowDirection="LeftToRight" 

                                        HorizontalAlignment="Center" Height="45" 

                                        Margin="0" VerticalAlignment="Center" 

                                        Width="45">
                                            <Grid.ColumnDefinitions>
                                                <ColumnDefinition Width="20*"/>
                                                <ColumnDefinition Width="20*"/>
                                                <ColumnDefinition Width="20*"/>
                                                <ColumnDefinition Width="20*"/>
                                            </Grid.ColumnDefinitions>
                                            <Grid.RowDefinitions>
                                                <RowDefinition Height="23*"/>
                                                <RowDefinition Height="19*"/>
                                                <RowDefinition Height="19*"/>
                                                <RowDefinition Height="19*"/>
                                            </Grid.RowDefinitions>
                                            <Border x:Name="Highlight" 

                                            BorderBrush="#FF45D6FA" 

                                            BorderThickness="1" Grid.ColumnSpan="4" 

                                            CornerRadius="0,0,1,1" Margin="-1" 

                                            Opacity="0" Grid.Row="0" 

                                            Grid.RowSpan="4"/>
                                            <Border x:Name="Background" 

                                            BorderBrush="#FFFFFFFF" 

                                            BorderThickness="1" Background="#FF1F3B53" 

                                            Grid.ColumnSpan="4" CornerRadius=".5" 

                                            Margin="0,-1,0,0" Opacity="1" 

                                            Grid.Row="1" Grid.RowSpan="3"/>
                                            <Border x:Name="BackgroundGradient" 

                                            BorderBrush="#BF000000" 

                                            BorderThickness="1" Grid.ColumnSpan="4" 

                                            CornerRadius=".5" Margin="0,-1,0,0" 

                                            Opacity="1" Grid.Row="1" 

                                            Grid.RowSpan="3">
                                                <Border.Background>
                                                    <LinearGradientBrush EndPoint=".7,1" 

                                                    StartPoint=".7,0">
                                                        <GradientStop Color="#FFFFFFFF" 

                                                        Offset="0"/>
                                                        <GradientStop Color="#F9FFFFFF" 

                                                        Offset="0.375"/>
                                                        <GradientStop Color="#E5FFFFFF" 

                                                        Offset="0.625"/>
                                                        <GradientStop Color="#C6FFFFFF" 

                                                        Offset="1"/>
                                                    </LinearGradientBrush>
                                                </Border.Background>
                                            </Border>
                                            <Rectangle Grid.ColumnSpan="4" 

                                            Grid.RowSpan="1" StrokeThickness="1">
                                                <Rectangle.Fill>
                                                    <LinearGradientBrush EndPoint="0.3,-1.1" 

                                                    StartPoint="0.46,1.6">
                                                        <GradientStop Color="#FF4084BD"/>
                                                        <GradientStop Color="#FFAFCFEA" 

                                                        Offset="1"/>
                                                    </LinearGradientBrush>
                                                </Rectangle.Fill>
                                                <Rectangle.Stroke>
                                                    <LinearGradientBrush EndPoint="0.48,-1" 

                                                    StartPoint="0.48,1.25">
                                                        <GradientStop Color="#FF494949"/>
                                                        <GradientStop Color="#FF9F9F9F" 

                                                        Offset="1"/>
                                                    </LinearGradientBrush>
                                                </Rectangle.Stroke>
                                            </Rectangle>
                                            <!--<Path Grid.ColumnSpan="4" Grid.Column="0" 
                                            Data="M11.426758,8.4305077 L11.749023,
						8.4305077 L11.749023,
                                            16.331387 L10.674805,16.331387 L10.674805,
						10.299648 L9.0742188,
                                            11.298672 L9.0742188,10.294277 C9.4788408,
						10.090176 9.9094238,
                                            9.8090878 10.365967,
						9.4510155 C10.82251,9.0929432 11.176106,
                                            8.7527733 11.426758,8.4305077 z M14.65086,
						8.4305077 L18.566387,
                                            8.4305077 L18.566387,9.3435936 L15.671368,
						9.3435936 L15.671368,
                                            11.255703 C15.936341,11.058764 16.27293,
						10.960293 16.681133,
                                            10.960293 C17.411602,10.960293 17.969301,
						11.178717 18.354229,
                                            11.615566 C18.739157,12.052416 18.931622,
						12.673672 18.931622,
                                            13.479336 C18.931622,15.452317 18.052553,
						16.438808 16.294415,
                                            16.438808 C15.560365,16.438808 14.951641,
						16.234707 14.468243,
                                            15.826504 L14.881817,14.929531 C15.368796,
						15.326992 15.837872,
                                            15.525723 16.289043,15.525723 C17.298809,
						15.525723 17.803692,
                                            14.895514 17.803692,13.635098 C17.803692,
						12.460618 17.305971,
                                            11.873379 16.310528,11.873379 C15.83071,
						11.873379 15.399232,
                                            12.079271 15.016094,12.491055 L14.65086,12.238613 z" 
                                            Fill="#FF2F2F2F" HorizontalAlignment="Center" 
                                            Margin="4,3,4,3" Grid.Row="1" 
                                            Grid.RowSpan="3" RenderTransformOrigin="0.5,0.5" 
                                            Stretch="Fill" VerticalAlignment="Center"/>-->
                                            <TextBlock Margin="2,0" Grid.Row="1" 

                                            Grid.RowSpan="3" Grid.ColumnSpan="4" 

                                            Grid.Column="0" 

                                            Text="{Binding Source={x:Static System:DateTime.Now}, 
                                            StringFormat=dd}" HorizontalAlignment="Center" 

                                            VerticalAlignment="Center" FontSize="18" 

                                            FontFamily="Arial Bold" />
                                            <Ellipse Grid.ColumnSpan="4" 

                                            Fill="#FFFFFFFF" HorizontalAlignment="Center" 

                                            Height="3" StrokeThickness="0" 

                                            VerticalAlignment="Center" Width="3"/>
                                            <Border x:Name="DisabledVisual" 

                                            BorderBrush="#B2FFFFFF" BorderThickness="1" 

                                            Grid.ColumnSpan="4" CornerRadius="0,0,.5,.5" 

                                            Opacity="0" Grid.Row="0" 

                                            Grid.RowSpan="4"/>
                                        </Grid>
                                    </Grid>
                                </ControlTemplate>
                            </Grid.Resources>
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition Width="*"/>
                                <ColumnDefinition Width="50"/>
                            </Grid.ColumnDefinitions>
                            <Button x:Name="PART_Button" Grid.Column="1" 

                            Foreground="{TemplateBinding Foreground}" 

                                Focusable="False" HorizontalAlignment="Center"

                                 Margin="3,0,3,0" Grid.Row="0" 

                                 Template="{StaticResource DropDownButtonTemplate}" 

                                 VerticalAlignment="Center" />
                            <DatePickerTextBox x:Name="PART_TextBox" Grid.Column="0" 

                            Focusable="{TemplateBinding Focusable}" 

                            HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"

                                               Grid.Row="0" 

                                               VerticalContentAlignment="
                                               {TemplateBinding VerticalContentAlignment}" 

                                               FontSize="{TemplateBinding FontSize}"/>
                            <Grid x:Name="PART_DisabledVisual" 

                            Grid.ColumnSpan="2" Grid.Column="0" 

                            IsHitTestVisible="False" Opacity="0" 

                            Grid.Row="0">
                                <Grid.ColumnDefinitions>
                                    <ColumnDefinition Width="*"/>
                                    <ColumnDefinition Width="Auto"/>
                                </Grid.ColumnDefinitions>
                                <Rectangle Grid.Column="0" Fill="#A5FFFFFF" 

                                RadiusY="1" Grid.Row="0" RadiusX="1"/>
                                <Rectangle Grid.Column="1" Fill="#A5FFFFFF" 

                                Height="18" Margin="3,0,3,0" 

                                RadiusY="1" Grid.Row="0" 

                                RadiusX="1" Width="19"/>
                                <Popup x:Name="PART_Popup" AllowsTransparency="
                                True" Placement="Bottom" 

                                PlacementTarget="{Binding ElementName=PART_TextBox}" 

                                StaysOpen="False"/>
                            </Grid>
                        </Grid>
                    </Border>
                    <ControlTemplate.Triggers>
                        <DataTrigger Binding="{Binding Source={x:Static 
                        SystemParameters.HighContrast}}" Value="false">
                            <Setter Property="Foreground" 

                            TargetName="PART_TextBox" Value="{Binding Foreground, 
                            RelativeSource={RelativeSource TemplatedParent}}"/>
                        </DataTrigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

Now, we can use this style in 'DatePicker' control as:

Style="{StaticResource DatePickerStyle1}"

This style is setting current date on calendar icon automatically. To show default calendar icon, you need to comment given below line and uncomment commented line.

<TextBlock Margin="2,0" Grid.Row="1" 

Grid.RowSpan="3" Grid.ColumnSpan="4" 

Grid.Column="0" 

Text="{Binding Source={x:Static System:DateTime.Now}, 
StringFormat=dd}" 

HorizontalAlignment="Center" VerticalAlignment="Center" 

FontSize="18" FontFamily="Arial Bold" />

You can modify style as needed.

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

Shailendra Singh Deol
Software Developer (Senior)
India India
I am working as a Sr. Software Engineer having experience more than 6 years. I work in various technologies/frameworks like as - C# .net (MVC/Aspx), Web API, Wpf, Angular JS, Entity Framework (Code First), Onion Architecture, IOC, Domain Driven Design, Multi-threading Environment, PHP, Asp Classic, MySql, Ms-Sql etc. I prefer to use Agile Methodology in development process.

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