Styling

DateTimePicker Styling

Date and Time Picker control for Xamarin provides the following Style properties for customizing its look:

  • SpinnerStyle(of type Style with target type telerikDataControls:RadSpinner): Defines the style applied to the spinner item and selected item.
  • SpinnerHeaderStyle(of type Style with target type Xamarin.Forms.Label): Specifies the style applied to the spinner header labels.
  • SelectionHighlightStyle(of type Style with target type telerikPrimitives:RadBorder): Specifies the style applied to the selection inside the popup.
  • PlaceholderLabelStyle(of type Style with target type Xamarin.Forms.Label): Defines the style applied to the placeholder label.
  • DisplayLabelStyle(of type Style with target type Xamarin.Forms.Label): Defines the style applied to the label which is visualized when date/time is selected.
  • TabStripStyle(of type Style with target type telerikPrimitives:TabViewHeader)
  • TabStripItemStyle(of type Style with target type telerikInput:DateTimeSelectorTabStripItem)

PickerContentView class exposes the following properties for styling the DateTimePicker Border and Background Color:

  • BackgroundColor(Xamarin.Forms.Color): Defines the background color of the picker.
  • BorderColor(Xamarin.Forms.Color): Defines the border color of the picker.
  • BorderThickness(Xamarin.Forms.Thickness): Specifies the border thickness of the picker. Default value is new Thickness(0,0,0,1).
  • CornerRadius(Xamarin.Forms.Thinckness): Specifies the corner radius of the picker.

Using the SelectorSettings property (of type Telerik.XamarinForms.Input.PickerPopupSelectorSettings) of the DateTimePicker you can modify the appearance of the dialog (popup). PickerPopupSelectorSettings class exposes the following Style properties:

  • PopupViewStyle(of type Style with target type telerikInput:PickerPopupContentView): Defines the popup view style.
  • HeaderStyle(of type Style with target type telerikInput:PickerPopupHeaderView): Defines the popup header style.
  • HeaderLabelStyle(of type Style with target type Xamarin.Forms.Label): Defines the popup header label style.
  • FooterStyle(of type Style with target type telerikInput:PickerPopupFooterView): Defines the popup footer style.
  • AcceptButtonStyle(of type Style with target type Xamarin.Forms.Button): Defines the Accept button style.
  • CancelButtonStyle(of type Style with target type Xamarin.Forms.Button): Defines the Cancel button style.

The SelectorSetting also provides the following properties for popup customization:

  • PopupOutsideBackgroundColor(Xamarin.Forms.Color): Defines the color outside of the popup.
  • IsPopupModal(bool): Defines a boolean value indicating if the popup should be closed when tapped outside of the popup. By default the value of the IsPopupModal is false.
    • When IsPopupModal="True" the UI behind the popup gets inactive and cannot be used until the popup is closed.
    • When IsPopupModal="False" the popup could be closed when clicking outside the popup.
  • HeaderLabelText(string): Specifies the text visualized in the popup header.
  • IsHeaderVisible(bool): Specifies whether the Popup header is currently visible. By default the valuse is False.
  • IsFooterVisible(bool): Specifies whether the Popup footer is currently visible. By default the valuse is True.
  • AcceptButtonText(string): Defines the text visualized for the accept button. By default the text is OK.
  • CancelButtonText(string): Defines the text visualized for the cancel button. By default the text is Cancel.

Namespaces

Using TabStripItemStyle, PopupViewStyle, HeaderStyle, FooterStyle you will need to add the following namespace:

xmlns:telerikInput="clr-namespace:Telerik.XamarinForms.Input;assembly=Telerik.XamarinForms.Input"

Using SelectionHighlightStyle, TabStripStyle you need to add the following namespace:

xmlns:telerikPrimitives="clr-namespace:Telerik.XamarinForms.Primitives;assembly=Telerik.XamarinForms.Primitives"

Using SpinnerStyle you need to add the following namespace:

xmlns:telerikDataControls="clr-namespace:Telerik.XamarinForms.DataControls;assembly=Telerik.XamarinForms.DataControls"

Example

Here is a sample example that shows how the styling properties are applied.

A sample DateTime Picker definition:

<telerikInput:RadDateTimePicker SpinnerHeaderStyle="{StaticResource spinnerHeaderStyle}"
                                SpinnerStyle="{StaticResource spinnerStyle}"
                                SelectionHighlightStyle="{StaticResource selectionHighlightStyle}"
                                SpinnerFormat="d"
                                AreSpinnerHeadersVisible="True"
                                DisplayLabelStyle="{StaticResource displayLabelStyle}"
                                PlaceholderLabelStyle="{StaticResource placeholderLabelStyle}">
    <telerikInput:RadDateTimePicker.SelectorSettings>
        <telerikInput:PickerPopupSelectorSettings PopupOutsideBackgroundColor="#D9D9D9CC"
                                                  PopupViewStyle="{StaticResource popupViewStyle}"
                                                  HeaderStyle="{StaticResource headerStyle}"
                                                  HeaderLabelText="Date Picker"
                                                  HeaderLabelStyle="{StaticResource headerLabelStyle}"
                                                  FooterStyle="{StaticResource footerStyle}"
                                                  AcceptButtonStyle="{StaticResource acceptButtonStyle}"
                                                  CancelButtonStyle="{StaticResource cancelButtonStyle}"/>
    </telerikInput:RadDateTimePicker.SelectorSettings>
</telerikInput:RadDateTimePicker>

and here are how the styles are defined in the page resources

Spinner Style

<Style TargetType="telerikDataControls:RadSpinner" x:Key="spinnerStyle">
    <Setter Property="ItemStyle">
        <Setter.Value>
            <Style TargetType="telerikDataControls:SpinnerItemView">
                <Setter Property="TextColor" Value="#4A4949"/>
            </Style>
        </Setter.Value>
    </Setter>
    <Setter Property="SelectedItemStyle">
        <Setter.Value>
            <Style TargetType="telerikDataControls:SpinnerItemView">
                <Setter Property="TextColor" Value="Black"/>
                <Setter Property="FontAttributes" Value="Bold"/>
            </Style>
        </Setter.Value>
    </Setter>
</Style>

SpinnerHeader Style

<Style TargetType="Label" x:Key="spinnerHeaderStyle">
    <Setter Property="TextColor" Value="Black"/>
    <Setter Property="FontAttributes" Value="Bold"/>
    <Setter Property="HorizontalOptions" Value="FillAndExpand"/>
    <Setter Property="VerticalOptions" Value="FillAndExpand"/>
    <Setter Property="HorizontalTextAlignment" Value="Center"/>
    <Setter Property="VerticalTextAlignment" Value="Center"/>
</Style>

SelectionHighlight Style

<Style TargetType="telerikPrimitives:RadBorder" x:Key="selectionHighlightStyle">
    <Setter Property="BackgroundColor" Value="Transparent"/>
    <Setter Property="BorderColor" Value="#00B5DC"/>
    <Setter Property="BorderThickness" Value="1"/>
    <Setter Property="Padding" Value="0,6,0,6"/>
    <Setter Property="HeightRequest" Value="40"/>
    <Setter Property="VerticalOptions" Value="Center"/>
</Style>

PlaceholderLabel Style

<Style TargetType="Label" x:Key="placeholderLabelStyle">
    <Setter Property="TextColor" Value="#4A4949"/>
    <Setter Property="VerticalTextAlignment" Value="Center"/>
    <Setter Property="HorizontalTextAlignment" Value="Center"/>
    <Setter Property="HeightRequest" Value="50"/>
</Style>

DisplayLabel Style

<Style TargetType="Label" x:Key="displayLabelStyle">
    <Setter Property="TextColor" Value="Black"/>
    <Setter Property="VerticalTextAlignment" Value="Center"/>
    <Setter Property="HorizontalTextAlignment" Value="Center"/>
    <Setter Property="HeightRequest" Value="50"/>
</Style>

PopupView Style

<Style TargetType="telerikInput:PickerPopupContentView" x:Key="popupViewStyle">
    <Setter Property="BackgroundColor" Value="White"/>
    <Setter Property="WidthRequest" Value="270"/>
</Style>

Header Style

<Style TargetType="telerikInput:PickerPopupHeaderView" x:Key="headerStyle">
    <Setter Property="BackgroundColor" Value="#00B5DC"/>
    <Setter Property="HeightRequest" Value="60"/>
    <Setter Property="Margin" Value="0"/>
    <Setter Property="Padding" Value="0"/>
    <Setter Property="HorizontalOptions" Value="FillAndExpand"/>
    <Setter Property="VerticalOptions" Value="FillAndExpand"/>
</Style>

HeaderLabel Style

<Style TargetType="Label" x:Key="headerLabelStyle">
    <Setter Property="TextColor" Value="White"/>
    <Setter Property="HorizontalOptions" Value="Center"/>
    <Setter Property="VerticalOptions" Value="Center"/>
    <Setter Property="FontSize" Value="Title"/>
</Style>
<Style TargetType="telerikInput:PickerPopupFooterView" x:Key="footerStyle">
    <Setter Property="BackgroundColor" Value="Transparent"/>
</Style>

AcceptButton Style

<Style TargetType="Button" x:Key="acceptButtonStyle">
    <Setter Property="BackgroundColor" Value="Transparent"/>
    <Setter Property="Text" Value="OK"/>
    <Setter Property="TextColor" Value="#00B5DC"/>
</Style>

CancelButton Style

<Style TargetType="Button" x:Key="cancelButtonStyle">
    <Setter Property="BackgroundColor" Value="Transparent"/>
    <Setter Property="Text" Value="X"/>
    <Setter Property="TextColor" Value="#00B5DC"/>
</Style>

Namespaces

In addition, add the following namespaces:

xmlns:telerikInput="clr-namespace:Telerik.XamarinForms.Input;assembly=Telerik.XamarinForms.Input"
xmlns:telerikDataControls="clr-namespace:Telerik.XamarinForms.DataControls;assembly=Telerik.XamarinForms.DataControls"
xmlns:telerikPrimitives="clr-namespace:Telerik.XamarinForms.Primitives;assembly=Telerik.XamarinForms.Primitives"

This is how the Date and Time Picker control looks when the styles described above are applied:

Date and Time Picker

A sample Styling example can be found in the DateTimePicker/Features folder of the SDK Samples Browser application.

See Also

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