Category / Section
How to customize the dropdown arrow of DropDownButton in UWP DatePicker?
An Icon of the DropDownButton can be customized by changing the Path of the ContentPresenter of the RepeatButon in SfDatePicker control. The same has been demonstrated in the following code.
<Page.Resources>
<Style TargetType="syncfusion:SfDatePicker" x:Key="SfDatePickerStyle"
BasedOn="{StaticResource DefaultSfDatePickerStyle}">
<Setter Property="AccentBrush" Value="{StaticResource AccentBrush}"/>
<Setter Property="Foreground" Value="Black"/>
<Setter Property="Background" Value="{StaticResource
TextBoxBackgroundThemeBrush}"/>
<Setter Property="BorderBrush" Value="{StaticResource
TextBoxBorderThemeBrush}"/>
<Setter Property="BorderThickness" Value="{StaticResource
TextControlBorderThemeThickness}"/>
<Setter Property="FontSize" Value="{StaticResource
ControlContentThemeFontSize}"></Setter>
<Setter Property="FontFamily" Value="{StaticResource
ContentControlThemeFontFamily}"></Setter>
<Setter Property="Padding" Value="{StaticResource
TextControlThemePadding}"></Setter>
<Setter Property="DropDownHeight" Value="400"/>
<Setter Property="FormatString" Value="d" />
<Setter Property="HorizontalAlignment" Value="Left"/>
<Setter Property="HorizontalContentAlignment" Value="Stretch"/>
<Setter Property="IsTabStop" Value="True"/>
<Setter Property="VerticalAlignment" Value="Center" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="syncfusion:SfDatePicker">
<Grid>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="ErrorStates">
<VisualState x:Name="HasError">
<Storyboard>
<ObjectAnimationUsingKeyFrames
Storyboard.TargetProperty="BorderBrush"
Storyboard.TargetName="PART_TextBlock">
<DiscreteObjectKeyFrame KeyTime="0"
Value="{StaticResource
SyncfusionTextBoxExtErrorThemeBrush}"/>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="NoError"/>
</VisualStateGroup>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal"/>
<VisualState x:Name="Disabled">
<Storyboard>
<ObjectAnimationUsingKeyFrames
Storyboard.TargetProperty="BorderBrush"
Storyboard.TargetName="PART_TextBlock">
<DiscreteObjectKeyFrame KeyTime="0"
Value="{StaticResource
TextBoxDisabledBorderThemeBrush}"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames
Storyboard.TargetProperty="Background"
Storyboard.TargetName="PART_TextBlock">
<DiscreteObjectKeyFrame KeyTime="0"
Value="{StaticResource
TextBoxDisabledBackgroundThemeBrush}"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames
Storyboard.TargetProperty="Foreground"
Storyboard.TargetName="PART_TextBlock">
<DiscreteObjectKeyFrame KeyTime="0"
Value="{StaticResource
TextBoxDisabledForegroundThemeBrush}"/>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Border Background="Transparent">
<Grid >
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="Auto"/>
</Grid.ColumnDefinitions>
<syncfusion:SfTextBoxExt AllowPointerEvents="True"
x:Name="PART_TextBlock" IsReadOnly="True"
FontSize="{TemplateBinding FontSize}"
FontFamily="{TemplateBinding FontFamily}"
FontStretch="{TemplateBinding FontStretch}"
Foreground="{TemplateBinding Foreground}"
FontStyle="{TemplateBinding FontStyle}"
FontWeight="{TemplateBinding FontWeight}"
HorizontalContentAlignment="{TemplateBinding
HorizontalContentAlignment}"
VerticalContentAlignment="{TemplateBinding
VerticalContentAlignment}"
Padding="{TemplateBinding Padding}"
Style="{StaticResource PickerTextBoxExtStyle}" Text="{Binding Value,Mode=OneWay,
RelativeSource={RelativeSource
Mode=TemplatedParent}}"
Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding
BorderThickness}"
Visibility="{Binding AllowInlineEditing,
Converter={StaticResource
InverseBooleanVisibilityConverter},
RelativeSource={RelativeSource
Mode=TemplatedParent}}" Grid.Column="0"
IsTabStop="{Binding IsTabStop,
RelativeSource={RelativeSource
Mode=TemplatedParent}}"
Watermark="{TemplateBinding Watermark}"
WatermarkTemplate="{TemplateBinding
WatermarkTemplate}"/>
<syncfusion:SfTextBoxExt Grid.Column="0"
InputScope="{Binding InputScope,
RelativeSource={RelativeSource Mode=TemplatedParent},
Converter={StaticResource NameToScope}}"
Text="{Binding Value, Mode=OneWay,
RelativeSource={RelativeSource Mode=TemplatedParent}}"
x:Name="PART_TextBoxExt" IsReadOnly="true"
FontSize="{TemplateBinding FontSize}"
FontFamily="{TemplateBinding FontFamily}"
FontStretch="{TemplateBinding FontStretch}"
Foreground="{TemplateBinding Foreground}"
FontStyle="{TemplateBinding FontStyle}"
FontWeight="{TemplateBinding FontWeight}"
HorizontalContentAlignment=
"{TemplateBinding HorizontalContentAlignment}"
VerticalContentAlignment=
"{TemplateBinding VerticalContentAlignment}"
Padding="{TemplateBinding Padding}" AllowPointerEvents="True" IsTabStop="{Binding
IsTabStop,RelativeSource={RelativeSource
Mode=TemplatedParent}}" Background="{TemplateBinding
Background}" BorderBrush="{TemplateBinding
BorderBrush}" BorderThickness="{TemplateBinding
BorderThickness}" Visibility="{Binding
AllowInlineEditing,Converter={StaticResource
BooleanVisibilityConverter},
RelativeSource={RelativeSource Mode=TemplatedParent}}"
Watermark="{Binding Watermark,
RelativeSource={RelativeSource TemplatedParent}}"
WatermarkTemplate="{Binding WatermarkTemplate,
RelativeSource={RelativeSource TemplatedParent}}"/>
<Rectangle Width="2" Visibility="{Binding
ShowDropDownButton,Converter={StaticResource
BooleanVisibilityConverter},
RelativeSource={RelativeSource Mode=TemplatedParent}}"
Grid.Column="1" />
<RepeatButton x:Name="PART_DropDownButton"
Style="{StaticResource DropDownButtonStyle_DatePicker}"
IsTabStop="{Binding AllowInlineEditing,
RelativeSource={RelativeSource TemplatedParent}}"
Visibility="{Binding ShowDropDownButton,
Converter={StaticResource BooleanVisibilityConverter},
RelativeSource={RelativeSource Mode=TemplatedParent}}"
Background="{Binding AccentBrush,
RelativeSource={RelativeSource TemplatedParent}}"
HorizontalAlignment="Stretch"
VerticalAlignment="Stretch" Grid.Column="2" />
</Grid>
</Border>
<Popup x:Name="PART_DropDown" FlowDirection="LeftToRight"
IsOpen="{Binding IsDropDownOpen, Mode=TwoWay,
RelativeSource={RelativeSource Mode=TemplatedParent}}">
<Grid x:Name="PART_DatePickerPage" Height="{Binding
DropDownHeight,
RelativeSource={RelativeSource Mode=TemplatedParent}}">
<syncfusion:SfDateSelector BorderThickness="{TemplateBinding
BorderThickness}"
Style="{Binding SelectorStyle, RelativeSource=
{RelativeSource Mode=TemplatedParent}}"
BorderBrush="#000000" IsEnabled="{Binding IsEnabled,
RelativeSource={RelativeSource Mode=TemplatedParent}}"
IsTabStop="{Binding IsTabStop,
RelativeSource={RelativeSource Mode=TemplatedParent}}"
Height="{Binding DropDownHeight,
RelativeSource={RelativeSource Mode=TemplatedParent}}"
FlowDirection="{TemplateBinding FlowDirection}"
x:Name="PART_DateSelector" AccentBrush="{Binding
AccentBrush, RelativeSource={RelativeSource
Mode=TemplatedParent}}"
SelectedDateTime="{Binding Value, RelativeSource=
{RelativeSource Mode=TemplatedParent}}"/>
</Grid>
</Popup>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<Style x:Key="DropDownButtonStyle_DatePicker" TargetType="RepeatButton">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="RepeatButton">
<Grid x:Name="grid">
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal"/>
<VisualState x:Name="PointerOver">
<Storyboard>
<DoubleAnimation Duration="0" To="0.9"
Storyboard.TargetProperty="Opacity"
Storyboard.TargetName="Border"/>
</Storyboard>
</VisualState>
<VisualState x:Name="Pressed">
<Storyboard>
<ObjectAnimationUsingKeyFrames
Storyboard.TargetProperty="Foreground"
Storyboard.TargetName="ContentPresenter">
<DiscreteObjectKeyFrame KeyTime="0"
Value="{StaticResource
ButtonPressedForegroundThemeBrush}"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames
Storyboard.TargetProperty="Fill"
Storyboard.TargetName="path">
<DiscreteObjectKeyFrame KeyTime="0"
Value="{Binding Background,
RelativeSource={RelativeSource
TemplatedParent}}"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames
Storyboard.TargetProperty="Background"
Storyboard.TargetName="Border">
<DiscreteObjectKeyFrame KeyTime="0"
Value="White"/>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Disabled">
<Storyboard>
<ObjectAnimationUsingKeyFrames
Storyboard.TargetProperty="Fill"
Storyboard.TargetName="path">
<DiscreteObjectKeyFrame KeyTime="0"
Value="{StaticResource
DropDownArrowDisabledForegroundThemeBrush}"/>
</ObjectAnimationUsingKeyFrames>
<DoubleAnimation Duration="0" To="0.5"
Storyboard.TargetProperty="Opacity"
Storyboard.TargetName="path"/>
<DoubleAnimation Duration="0" To="0.7"
Storyboard.TargetProperty="Opacity"
Storyboard.TargetName="Border"/>
</Storyboard>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="FocusStates">
<VisualState x:Name="Focused">
<Storyboard>
<DoubleAnimation Duration="0" To="1"
Storyboard.TargetProperty="Opacity"
Storyboard.TargetName="FocusVisualWhite"/>
<DoubleAnimation Duration="0" To="1"
Storyboard.TargetProperty="Opacity"
Storyboard.TargetName="FocusVisualBlack"/>
</Storyboard>
</VisualState>
<VisualState x:Name="Unfocused"/>
<VisualState x:Name="PointerFocused"/>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Border x:Name="Border" Background="{TemplateBinding
Background}">
<ContentPresenter x:Name="ContentPresenter"
ContentTemplate="{TemplateBinding ContentTemplate}" ContentTransitions="{TemplateBinding ContentTransitions}"
HorizontalAlignment="{TemplateBinding
HorizontalContentAlignment}" MinWidth="32"
VerticalAlignment="{TemplateBinding
VerticalContentAlignment}">
<!--icon of the dropdown button-->
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Stretch="Uniform" Fill="#FFFFFFFF" Width="30" Height="30"
Margin="0,0,0,0" RenderTransformOrigin="0.5,0.5"/>
</ContentPresenter>
</Border>
<Rectangle x:Name="FocusVisualWhite" IsHitTestVisible="False"
Opacity="0" StrokeDashOffset="1.5" StrokeEndLineCap="Square"
Stroke="{StaticResource FocusVisualWhiteStrokeThemeBrush}"
StrokeDashArray="1,1"/>
<Rectangle x:Name="FocusVisualBlack" IsHitTestVisible="False"
Opacity="0" StrokeDashOffset="0.5" StrokeEndLineCap="Square"
Stroke="{StaticResource FocusVisualBlackStrokeThemeBrush}"
StrokeDashArray="1,1"/>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Page.Resources>
<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<syncfusion:SfDatePicker Grid.Row="0" Width="180" ShowDropDownButton="True"
Style="{StaticResource SfDatePickerStyle}"/>
</Grid>
Output:
Conclusion
I hope you enjoyed learning about how to customize the dropdown arrow of DropDownButton in UWP DatePicker.
You can refer to our UWP DatePicker feature tour page to know about its other groundbreaking feature representations and documentation, and how to quickly get started for configuration specifications.
For current customers, you can check out our components from the License and Downloads page. If you are new to Syncfusion, you can try our 30-day free trial to check out our other controls.
If you have any queries or require clarifications, please let us know in the comments section below. You can also contact us through our support forums, Direct-Trac, or feedback portal. We are always happy to assist you!
