RenameDialog.xaml

<Window x:Class="KnowledgeBaseViewer.RenameDialog"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="Rename File" Height="160" Width="420"
        WindowStartupLocation="CenterOwner" ResizeMode="NoResize"
        ShowInTaskbar="False">
    <Grid Margin="16">
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="*"/>
            <RowDefinition Height="Auto"/>
        </Grid.RowDefinitions>

        <TextBlock Grid.Row="0" Text="New name:" FontWeight="SemiBold" Margin="0,0,0,8"/>
        <TextBox x:Name="NameTextBox" Grid.Row="1" Padding="6" KeyDown="NameTextBox_KeyDown"/>
        <TextBlock x:Name="ErrorText" Grid.Row="2" Foreground="#b91c1c" FontSize="11" Margin="0,6,0,0"
                   Visibility="Collapsed"/>

        <StackPanel Grid.Row="4" Orientation="Horizontal" HorizontalAlignment="Right" Margin="0,16,0,0">
            <Button Content="Cancel" Width="80" Padding="6" Margin="0,0,8,0" Click="CancelButton_Click"/>
            <Button Content="Rename" Width="80" Padding="6" IsDefault="True" Click="RenameButton_Click"/>
        </StackPanel>
    </Grid>
</Window>