kmpdfkit_demo/compdfkit_demo_windows/compdfkit/compdfkit-tools/PDFView/PDFBookmark/PDFBookmarkUI/CPDFBookmarkAddUI.xaml

<UserControl x:Class="compdfkit_tools.PDFControlUI.CPDFBookmarkAddUI"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:local="clr-namespace:compdfkit_tools.PDFControlUI"
             mc:Ignorable="d" 
             d:DesignHeight="450" d:DesignWidth="800">
    <UserControl.Resources>
        <ResourceDictionary>
            <local:BoolEnableConvert x:Key="BoolEnableCovert"/>
        </ResourceDictionary>
    </UserControl.Resources>
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="auto"></RowDefinition>
            <RowDefinition Height="auto"></RowDefinition>
        </Grid.RowDefinitions>
        
        <Grid>
            <Border CornerRadius="20" BorderThickness="0" Width="140" Height="35" Background="#E6E6E6" ClipToBounds="True" 
                    HorizontalAlignment="Right" Margin="0,0,10,0" MouseLeftButtonDown="Border_MouseLeftButtonDown">
                <Grid>
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="*"></ColumnDefinition>
                        <ColumnDefinition Width="auto"></ColumnDefinition>
                    </Grid.ColumnDefinitions>
                    <Viewbox Width="25" HorizontalAlignment="Right" Margin="0,0,10,0">
                        <Path Fill="#8A8A8A" >
                            <Path.Data>
                                M13.5 7.99997C13.5 11.0375 11.0376 13.5 8 13.5C4.96243 13.5 2.5 11.0375 2.5 7.99997C2.5 4.9624 4.96243 
                            2.49997 8 2.49997C11.0376 2.49997 13.5 4.9624 13.5 7.99997ZM15 7.99997C15 11.866 11.866 15 8 15C4.13401 
                            15 1 11.866 1 7.99997C1 4.13398 4.13401 0.999969 8 0.999969C11.866 0.999969 15 4.13398 15 7.99997ZM7.25005 
                            4.8V7.25H4.80005V8.75H7.25005V11.2H8.75005V8.75H11.2V7.25H8.75005V4.8H7.25005Z
                            </Path.Data>
                        </Path>
                    </Viewbox>

                    <TextBlock Grid.Column="1" VerticalAlignment="Center" HorizontalAlignment="Right" Margin="0,0,10,0">Add Bookmark</TextBlock>
                </Grid>
            </Border>
        </Grid>

        <Border Name="BookmarkInputPanel" Grid.Row="1" CornerRadius="5" Background="#E2E3E6" Padding="5" Margin="0,5,0,0" Visibility="Collapsed">
            <Grid >
                <Grid.RowDefinitions>
                    <RowDefinition Height="auto"></RowDefinition>
                    <RowDefinition Height="auto"></RowDefinition>
                    <RowDefinition Height="auto"></RowDefinition>
                </Grid.RowDefinitions>
                <TextBlock Name="PageNumText"></TextBlock>
                <TextBox Name="BookmarkText" Grid.Row="1" Height="30" VerticalContentAlignment="Center"></TextBox>
                <StackPanel Orientation="Horizontal" Grid.Row="2" HorizontalAlignment="Right" Margin="0,10,0,0">
                    <Button Padding="5" Width="60" Click="ButtonCancel_Click">Cancel</Button>
                    <Button Margin="10,0,0,0" Padding="5" Width="60" Click="ButtonAdd_Click"
                            IsEnabled="{Binding ElementName=BookmarkText,Path=Text,Converter={StaticResource BoolEnableCovert}}">Add</Button>
                </StackPanel>
            </Grid>
        </Border>
    </Grid>
</UserControl>