I want to perform some operation when the RadComboBox, RadTimePicker and RadDatePicker is focused or tapped. But even if I attach these events, they are not triggered.

Is there a way to do so. Kindly help.

<Grid>
            <Grid.RowDefinitions>
                <RowDefinition Height="42"></RowDefinition>
            </Grid.RowDefinitions>
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="0.1*"></ColumnDefinition>
                <ColumnDefinition Width="3.5*"></ColumnDefinition>
                <ColumnDefinition Width="0.8*"></ColumnDefinition>
                <ColumnDefinition Width="3.5*"></ColumnDefinition>
                <ColumnDefinition Width="2*"></ColumnDefinition>
                <ColumnDefinition Width="0.1*"></ColumnDefinition>
            </Grid.ColumnDefinitions>
            <Grid Grid.Row="0" Grid.Column="1">
                <telerikInput:RadDateTimePicker SpinnerFormat="yyyy-MM-dd HH:mm:ss" x:Name="StarDateTime" 
                                PlaceholderTemplate="{StaticResource placeholderTemplateStar}"
                                DisplayTemplate="{StaticResource displayTemplate}">
                    <telerikInput:RadDateTimePicker.SelectorSettings>
                        <telerikInput:PickerPopupSelectorSettings HeaderTemplate="{StaticResource headerTemplate}" 
                                                  FooterTemplate="{StaticResource footerTemplate}" />
                    </telerikInput:RadDateTimePicker.SelectorSettings>
                </telerikInput:RadDateTimePicker>
            </Grid>
            <Grid Grid.Row="0" Grid.Column="2">
                <Label VerticalTextAlignment="Center" HorizontalTextAlignment="Center" Text="---" />
            </Grid>
            <Grid Grid.Row="0" Grid.Column="3">
                <telerikInput:RadDateTimePicker SpinnerFormat="yyyy-MM-dd HH:mm:ss" x:Name="EndDateTime" 
                                PlaceholderTemplate="{StaticResource placeholderTemplateEnd}"
                                DisplayTemplate="{StaticResource displayTemplate}">
                    <telerikInput:RadDateTimePicker.SelectorSettings>
                        <telerikInput:PickerPopupSelectorSettings HeaderTemplate="{StaticResource headerTemplate}" 
                                                  FooterTemplate="{StaticResource footerTemplate}"/>
                    </telerikInput:RadDateTimePicker.SelectorSettings>
                </telerikInput:RadDateTimePicker>
            </Grid>
            <Grid Grid.Row="0" Grid.Column="4">
                <telerikInput:RadButton Text="计算" CornerRadius="20" Clicked="RadButton_Clicked" Style="{StaticResource BtnSubStyle}" />
            </Grid>

        </Grid>

 

--样式

<ControlTemplate x:Key="placeholderTemplateStar">
        <Label Text="请选择开始时间" 
           FontAttributes="Bold" 
           BackgroundColor="Black" 
           HeightRequest="50"
           VerticalTextAlignment="Center"
           HorizontalTextAlignment="Center">
            <Label.GestureRecognizers>
                <TapGestureRecognizer Command="{TemplateBinding ToggleCommand}" />
            </Label.GestureRecognizers>
        </Label>
    </ControlTemplate>
    <ControlTemplate x:Key="placeholderTemplateEnd">
        <Label Text="请选择结束时间" 
           FontAttributes="Bold" 
           BackgroundColor="Black" 
           HeightRequest="50"
           VerticalTextAlignment="Center"
           HorizontalTextAlignment="Center">
            <Label.GestureRecognizers>
                <TapGestureRecognizer Command="{TemplateBinding ToggleCommand}" />
            </Label.GestureRecognizers>
        </Label>
    </ControlTemplate>
    <ControlTemplate x:Key="displayTemplate">
        <Label Text="{TemplateBinding DisplayString}" 
           TextColor="Black" 
           HeightRequest="50"
           VerticalTextAlignment="Center"
           HorizontalTextAlignment="Center">
            <Label.GestureRecognizers>
                <TapGestureRecognizer Command="{TemplateBinding ToggleCommand}" />
            </Label.GestureRecognizers>
        </Label>
    </ControlTemplate>

<ControlTemplate x:Key="headerTemplate">
        <Label Text="{TemplateBinding HeaderLabelText}" 
           TextColor="Black"
           VerticalTextAlignment="Center"
           HorizontalTextAlignment="Center"/>
    </ControlTemplate>
    <ControlTemplate x:Key="footerTemplate">
        <StackLayout Orientation="Horizontal" Spacing="0" HorizontalOptions="FillAndExpand">
            <Button Text="{TemplateBinding CancelButtonText}" 
                TextColor="Black"
                BackgroundColor="Transparent"
                Command="{TemplateBinding CancelCommand}" />
            <Button Text="{TemplateBinding AcceptButtonText}" 
                TextColor="Black"
                BackgroundColor="Transparent"
                Command="{TemplateBinding AcceptCommand}" />
        </StackLayout>

    </ControlTemplate>

--英文改为中文

public class CustomDateTimePickerLocalizationManager: TelerikLocalizationManager
{
        public override string GetString(string key)
        {

            if (key == "DateTimePicker_Popup_HeaderLabelText")
                return "Datum und Uhrzeit Picker";
            if (key == "DateTimePicker_PlaceholderLabelText")
                return "Datum und Uhrzeit auswählen";
            if (key == "Picker_AmPmSpinnerHeaderLabelText")
                return "am/pm";
            if (key == "Picker_DaySpinnerHeaderLabelText")
                return "日";
            if (key == "Picker_HourSpinnerHeaderLabelText")
                return "小时";
            if (key == "Picker_MinuteSpinnerHeaderLabelText")
                return "分";
            if (key == "Picker_SecondSpinnerHeaderLabelText")
                return "秒";
            if (key == "Picker_MonthSpinnerHeaderLabelText")
                return "月";
            if (key == "Picker_YearSpinnerHeaderLabelText")
                return "年";
            if (key == "Picker_Popup_AcceptButtonText")
                return "选择";
            if (key == "Picker_Popup_CancelButtonText")
                return "关闭";

            return base.GetString(key);
        }
    }

--后端

InitializeComponent();
            TelerikLocalizationManager.Manager = new CustomDateTimePickerLocalizationManager();
            StarDateTime.MinimumDate = DateTime.Now.AddYears(-10);
            EndDateTime.MinimumDate = DateTime.Now.AddYears(-10);
            StarDateTime.Date = DateTime.Now.AddYears(-1);
            EndDateTime.Date = DateTime.Now;

<Grid Grid.Row="0" Grid.Column="1">
                <telerikInput:RadDateTimePicker SpinnerFormat="yyyy-MM-dd HH:mm:ss" x:Name="StarDateTime" BorderColor="#c9c9c9" BorderThickness="1"
                                PlaceholderTemplate="{StaticResource placeholderTemplateStar}"
                                DisplayTemplate="{StaticResource displayTemplate}">
                    <telerikInput:RadDateTimePicker.SelectorSettings>
                        <telerikInput:PickerPopupSelectorSettings HeaderTemplate="{StaticResource headerTemplate}" 
                                                  FooterTemplate="{StaticResource footerTemplate}" />
                    </telerikInput:RadDateTimePicker.SelectorSettings>
                </telerikInput:RadDateTimePicker>
            </Grid>
            <Grid Grid.Row="0" Grid.Column="2">
                <Label VerticalTextAlignment="Center" HorizontalTextAlignment="Center" Text="---" />
            </Grid>
            <Grid Grid.Row="0" Grid.Column="3">
                <telerikInput:RadDateTimePicker SpinnerFormat="yyyy-MM-dd HH:mm:ss" x:Name="EndDateTime" BorderColor="#c9c9c9" BorderThickness="1"
                                PlaceholderTemplate="{StaticResource placeholderTemplateEnd}"
                                DisplayTemplate="{StaticResource displayTemplate}">
                    <telerikInput:RadDateTimePicker.SelectorSettings>
                        <telerikInput:PickerPopupSelectorSettings HeaderTemplate="{StaticResource headerTemplate}" 
                                                  FooterTemplate="{StaticResource footerTemplate}" x:Name="names"/>
                    </telerikInput:RadDateTimePicker.SelectorSettings>
                </telerikInput:RadDateTimePicker>
            </Grid>

 

 

<ControlTemplate x:Key="placeholderTemplateStar">
        <Label Text="请选择开始时间" 
           FontAttributes="Bold" 
           BackgroundColor="White" 
           HeightRequest="50"
           VerticalTextAlignment="Center"
           HorizontalTextAlignment="Center">
            <Label.GestureRecognizers>
                <TapGestureRecognizer Command="{TemplateBinding ToggleCommand}" />
            </Label.GestureRecognizers>
        </Label>
    </ControlTemplate>
    <ControlTemplate x:Key="placeholderTemplateEnd">
        <Label Text="请选择结束时间" 
           FontAttributes="Bold" 
           BackgroundColor="White" 
           HeightRequest="50"
           VerticalTextAlignment="Center"
           HorizontalTextAlignment="Center">
            <Label.GestureRecognizers>
                <TapGestureRecognizer Command="{TemplateBinding ToggleCommand}" x:Name="name" />
            </Label.GestureRecognizers>
        </Label>
    </ControlTemplate>
    <ControlTemplate x:Key="displayTemplate">
        <Label Text="{TemplateBinding DisplayString}" 
           TextColor="White" 
           BackgroundColor="#7BAEFF"
           HeightRequest="50"
           VerticalTextAlignment="Center"
           HorizontalTextAlignment="Center">
            <Label.GestureRecognizers>
                <TapGestureRecognizer Command="{TemplateBinding ToggleCommand}" />
            </Label.GestureRecognizers>
        </Label>
    </ControlTemplate>
    <ControlTemplate x:Key="headerTemplate">
        <Label Text="{TemplateBinding HeaderLabelText}" 
           TextColor="White"
           VerticalTextAlignment="Center"
           HorizontalTextAlignment="Center"
           BackgroundColor="#4488F5"/>
    </ControlTemplate>
    <ControlTemplate x:Key="footerTemplate">
        <StackLayout Orientation="Horizontal" Spacing="0" HorizontalOptions="FillAndExpand" BackgroundColor="#4488F5">
            <Button Text="{TemplateBinding CancelButtonText}" 
                TextColor="White"
                BackgroundColor="Transparent"
                Command="{TemplateBinding CancelCommand}" />
            <Button Text="{TemplateBinding AcceptButtonText}" 
                TextColor="White"
                BackgroundColor="Transparent"
                Command="{TemplateBinding AcceptCommand}" />
        </StackLayout>

    </ControlTemplate>

Hi, I'm trying to apply theme changes to telerikInput:RadDateTimePicker, place holder & text colour change from ThemeDark.xaml & ThemeLight.xaml

by using

DisplayLabelStyle="{AppThemeBinding Dark={StaticResource TextColorDark},
                                                            Light={StaticResource PrimaryTextColorLight}}"   

and

PlaceholderLabelStyle="{AppThemeBinding Dark={StaticResource TextColorDark},
                                                            Light={StaticResource PrimaryTextColorLight}}"            
                                    SelectionHighlightStyle="{StaticResource selectionHighlightStyle}"

 

but this AppThemeBinding doesn't work, If there is any working solution, please share with me.

Thanks

Hi,

When the user opens the picker for the first time, is there any way to have it default to the current time?

I know I can set DefaultHighlightedTime but the user may spend some minutes in the screen before they select a time so the DefaultHighlightedTime is no longer the current time and is a few minutes ago.

Regards

Anthony