Excelview.xaml

<adonisControls:AdonisWindow
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:xctk="http://schemas.xceed.com/wpf/xaml/toolkit"
        xmlns:local="clr-namespace:RenameTool_3"
        xmlns:adonisExtensions="clr-namespace:AdonisUI.Extensions;assembly=AdonisUI"
        xmlns:adonisUi="clr-namespace:AdonisUI;assembly=AdonisUI"
        xmlns:adonisControls="clr-namespace:AdonisUI.Controls;assembly=AdonisUI" xmlns:av="http://schemas.microsoft.com/expression/blend/2008" Height="720" Width="386"  xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" x:Name="Settings" mc:Ignorable="av" x:Class="RenameTool_3.Excelview"
        SizeToContent="Manual" Background="{DynamicResource {x:Static adonisUi:Brushes.Layer1BackgroundBrush}}">
    <adonisControls:AdonisWindow.TitleBarContent>
        <StackPanel Orientation="Horizontal"
                    HorizontalAlignment="Right">
            <Button Content="?"
                    Style="{DynamicResource {x:Static adonisUi:Styles.WindowButton}}"
                    FontFamily="Segoe UI"
                    FontSize="14"/>
        </StackPanel>
    </adonisControls:AdonisWindow.TitleBarContent>
    <adonisControls:AdonisWindow.Style>
        <Style TargetType="{x:Type Window}" BasedOn="{StaticResource {x:Type Window}}"/>
    </adonisControls:AdonisWindow.Style>
    <Viewbox >
        <Grid>

            <WrapPanel Orientation="Vertical">

                <WrapPanel Orientation="Vertical" HorizontalAlignment="Center" VerticalAlignment="Center">
                    <ListView Height="300" FontSize="8" x:Name="Excelliste" av:ItemsSource="{Binding liste}">
                        <ListView.Background>
                            <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
                                <GradientStop Color="Black"/>
                                <GradientStop Color="#FF484848" Offset="1"/>
                            </LinearGradientBrush>
                        </ListView.Background>
                        <ListView.View>
                            <GridView>
                                <GridViewColumn Header="Value 1" DisplayMemberBinding="{Binding value1}" />
                                <GridViewColumn Header="Value 2" DisplayMemberBinding="{Binding value2}"/>
                                <GridViewColumn Header="Value 3" DisplayMemberBinding="{Binding value3}"/>
                            </GridView>
                        </ListView.View>
                    </ListView>
                </WrapPanel>

                <!--<WrapPanel Orientation="Horizontal" HorizontalAlignment="Center" VerticalAlignment="Bottom" Margin="0,5,0,10" >
                    <Button FontSize="8" Margin="5" Content="Add"  Style="{DynamicResource {x:Static adonisUi:Styles.AccentButton}}" Background="{DynamicResource {x:Static adonisUi:Brushes.Layer3BackgroundBrush}}" BorderBrush="{DynamicResource {x:Static adonisUi:Brushes.Layer3BorderBrush}}" adonisExtensions:RippleExtension.BackgroundBrush="Green" adonisExtensions:RippleExtension.BorderBrush="Green" adonisExtensions:RippleExtension.ForegroundBrush="White" adonisExtensions:CornerRadiusExtension.CornerRadius="8"/>
                    <Button FontSize="8" Margin="5" Content="Del"  Style="{DynamicResource {x:Static adonisUi:Styles.AccentButton}}" Background="{DynamicResource {x:Static adonisUi:Brushes.Layer3BackgroundBrush}}" BorderBrush="{DynamicResource {x:Static adonisUi:Brushes.Layer3BorderBrush}}" adonisExtensions:RippleExtension.BackgroundBrush="Red" adonisExtensions:RippleExtension.BorderBrush="Red" adonisExtensions:RippleExtension.ForegroundBrush="Red" adonisExtensions:CornerRadiusExtension.CornerRadius="8"  HorizontalAlignment="Left"  VerticalAlignment="Top"  />
                    <TextBox Width="90" FontSize="8" Margin="5" x:Name="Textbox"   adonisExtensions:WatermarkExtension.Watermark="Admin hinzufügen..." TextWrapping="Wrap" Text=""  />
                </WrapPanel>-->

            </WrapPanel>

        </Grid>
    </Viewbox>
</adonisControls:AdonisWindow>