UVtools/UVtools.WPF/Windows/MaterialManagerWindow.axaml

<controls:WindowEx xmlns="https://github.com/avaloniaui"
                   xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                   xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
                   xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
                   xmlns:controls="clr-namespace:UVtools.WPF.Controls"
                   mc:Ignorable="d" d:DesignWidth="1000" d:DesignHeight="450"
                   x:Class="UVtools.WPF.Windows.MaterialManagerWindow"
                   Title="Material manager"
                   MinWidth="900"
                   MinHeight="600"
                   WindowStartupLocation="CenterOwner"
                   Icon="/Assets/Icons/UVtools.ico">

    <Grid RowDefinitions="Auto,Auto,Auto,*">
        <Border Grid.Row="0" Padding="5">
            <Expander
                Header="Global statistics"
                IsExpanded="True">

                <StackPanel>
                  <WrapPanel Orientation="Horizontal">
                    <StackPanel Orientation="Horizontal">
                      <TextBlock Text="Bottles in stock:" VerticalAlignment="Center" FontWeight="Bold"/>
                      <TextBox Classes="TransparentReadOnlyMultiLineNoBorder"
                                 Text="{Binding Manager.BottlesInStock, StringFormat={}{0:N0}}"/>
                    </StackPanel>

                    <StackPanel Margin="10,0,0,0" Orientation="Horizontal">
                      <TextBlock Text="Owned bottles:" VerticalAlignment="Center" FontWeight="Bold"/>
                      <TextBox Classes="TransparentReadOnlyMultiLineNoBorder"
                               Text="{Binding Manager.OwnedBottles, StringFormat={}{0:N0}}"/>
                    </StackPanel>

                    <StackPanel Margin="10,0,0,0" Orientation="Horizontal">
                      <TextBlock Text="Consumed volume:" VerticalAlignment="Center" FontWeight="Bold"/>
                      <TextBox Classes="TransparentReadOnlyMultiLineNoBorder"
                           Text="{Binding Manager.ConsumedVolumeLiters, StringFormat={}{0:N4}}"/>
                      <TextBlock Text="liters" VerticalAlignment="Center"/>
                    </StackPanel>

                    <StackPanel Margin="10,0,0,0" Orientation="Horizontal">
                      <TextBlock Text="Volume in stock:" VerticalAlignment="Center" FontWeight="Bold"/>
                      <TextBox Classes="TransparentReadOnlyMultiLineNoBorder"
                           Text="{Binding Manager.VolumeInStockLiters, StringFormat={}{0:N4}}"/>
                      <TextBlock Text="liters" VerticalAlignment="Center"/>
                    </StackPanel>

                    <StackPanel Margin="10,0,0,0" Orientation="Horizontal">
                      <TextBlock Text="Spent:" VerticalAlignment="Center" FontWeight="Bold"/>
                      <TextBox Classes="TransparentReadOnlyMultiLineNoBorder"
                           Text="{Binding Manager.TotalCost, StringFormat={}{0:N2}}"/>
                    </StackPanel>

                    <StackPanel Margin="10,0,0,0" Orientation="Horizontal">
                      <TextBlock Text="Print time:" VerticalAlignment="Center" FontWeight="Bold"/>
                      <TextBox Classes="TransparentReadOnlyMultiLineNoBorder"
                           Text="{Binding Manager.PrintTimeSpan.TotalDays, StringFormat={}{0:N4}}"/>
                      <TextBlock Text="days" VerticalAlignment="Center"/>
                    </StackPanel>
                  </WrapPanel>

                </StackPanel>

                </Expander>
            </Border>


        <Expander Grid.Row="1"
                  Header="Add new material"
                  IsExpanded="True">

          <Grid
              RowDefinitions="Auto,10,Auto,10,Auto,10,Auto"
              ColumnDefinitions="Auto,10,Auto,20,Auto,10,Auto,20,Auto,10,Auto,20,Auto,10,Auto,5,Auto">

              <TextBlock Grid.Row="0" Grid.Column="0"
                         VerticalAlignment="Center"
                         Text="Name:"/>

              <TextBox Grid.Row="0" Grid.Column="2" Grid.ColumnSpan="11"
                       HorizontalAlignment="Stretch"
                       Watermark="A descriptive material name, eg: Epax Hard Grey"
                       Text="{Binding Material.Name}"/>

              <controls:ButtonWithIcon
                  Grid.Row="0" Grid.Column="14" Grid.ColumnSpan="3"
                  VerticalContentAlignment="Center"
                  HorizontalContentAlignment="Stretch"
                  VerticalAlignment="Stretch"
                  Icon="fa-solid fa-plus"
                  Text="Add new material"
                  Command="{Binding AddNewMaterial}"/>

              <TextBlock Grid.Row="2" Grid.Column="0"
                         VerticalAlignment="Center"
                         ToolTip.Tip="Bottle material volume"
                         Text="Volume:"/>

              <NumericUpDown Grid.Row="2" Grid.Column="2"
                             Classes="ValueLabel ValueLabel_ml"
                             Minimum="100"
                             Maximum="100000"
                             Increment="100"
                             Value="{Binding Material.BottleVolume}"/>


              <TextBlock Grid.Row="2" Grid.Column="4"
                         VerticalAlignment="Center"
                         ToolTip.Tip="Used to calculate weight and cost"
                         Text="Density:"/>

              <NumericUpDown Grid.Row="2" Grid.Column="6"
                             Classes="ValueLabel ValueLabel_gml"
                             Minimum="0.1"
                             Maximum="10"
                             Increment="0.1"
                             Value="{Binding Material.Density}"/>

              <TextBlock Grid.Row="2" Grid.Column="8"
                         VerticalAlignment="Center"
                         ToolTip.Tip="One bottle unit cost"
                         Text="Cost:"/>

              <NumericUpDown Grid.Row="2" Grid.Column="10"
                             Minimum="1"
                             Maximum="100000"
                             Increment="1"
                             Value="{Binding Material.BottleCost}"/>

              <TextBlock Grid.Row="2" Grid.Column="12"
                         VerticalAlignment="Center"
                         ToolTip.Tip="Number of bottles in stock"
                         Text="Stock:"/>

              <NumericUpDown Grid.Row="2" Grid.Column="14"
                             Minimum="1"
                             Maximum="100000"
                             Increment="1"
                             Value="{Binding Material.BottlesInStock}"/>
              <TextBlock Grid.Row="2" Grid.Column="16"
                         VerticalAlignment="Center"
                         Text="units"/>
          </Grid>
        </Expander>

        <TextBlock  Grid.Row="2"
                    VerticalAlignment="Center" FontWeight="Bold"
                    Margin="10,0,0,0"
                    Text="{Binding Manager.Count, StringFormat=Materials: {0}}"/>

        <StackPanel Grid.Row="2" Orientation="Horizontal" HorizontalAlignment="Right" Spacing="1">

          <controls:ButtonWithIcon VerticalAlignment="Center" 
                  IsEnabled="{Binding #MaterialsTable.SelectedItem, Converter={x:Static ObjectConverters.IsNotNull}}"
                  Icon="fa-solid fa-trash-alt"
                  Text="Remove selected materials"
                  Command="{Binding RemoveSelectedMaterials}"/>

            <controls:ButtonWithIcon VerticalAlignment="Center" 
                    IsEnabled="{Binding Manager.Count}"
                    Icon="fa-solid fa-xmark"
                    Text="{Binding Manager.Count, StringFormat=Clear {0} materials}"
                    Command="{Binding ClearMaterials}"/>

        </StackPanel>

      <DataGrid Grid.Row="3"
      Name="MaterialsTable"
      CanUserReorderColumns="True"
      CanUserResizeColumns="True"
      CanUserSortColumns="True"
      GridLinesVisibility="Horizontal"
      ClipboardCopyMode="IncludeHeader"
      VerticalAlignment="Stretch"
      Items="{Binding Manager.Materials}">
        <DataGrid.Columns>
          <DataGridTextColumn Header="Name"
                              Binding="{Binding Name}"
                              Width="Auto" />
          <DataGridTextColumn Header="Volume (ml)"
                              Binding="{Binding BottleVolume}"
                              Width="Auto" />
          <!--
          <DataGridTextColumn Header="Density (g/ml)"
                                Binding="{Binding Density}"
                                Width="Auto" />!-->
          <DataGridTextColumn Header="Cost"
                              Binding="{Binding BottleCost}"
                              Width="Auto" />
          <DataGridTextColumn Header="In stock"
                              Binding="{Binding BottlesInStock}"
                              Width="Auto" />
          <DataGridTextColumn Header="Consumed bottles"
                              IsReadOnly="True"
                              Binding="{Binding ConsumedBottles, StringFormat={}{0:N0}}"
                              Width="Auto" />
          <DataGridTextColumn Header="Spent"
                              IsReadOnly="True"
                              Binding="{Binding TotalCost, StringFormat={}{0:N2}}"
                              Width="Auto" />
          <DataGridTextColumn Header="Remaining volume (ml)"
                              Binding="{Binding BottleRemainingVolume}"
                              Width="Auto" />
          <DataGridTextColumn Header="Consumed volume (l)"
                              IsReadOnly="True"
                              Binding="{Binding ConsumedVolumeLiters, StringFormat={}{0:N3}}"
                              Width="Auto" />
          <DataGridTextColumn Header="Print time (days)"
                              IsReadOnly="True"
                              Binding="{Binding PrintTimeSpan.TotalDays, StringFormat={}{0:N4}}"
                              Width="Auto" />
        </DataGrid.Columns>

      </DataGrid>
    </Grid>
    
</controls:WindowEx>