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 IsExpanded="True">
                <Expander.Header>
                    <TextBlock Text="Global statistics"
                               FontWeight="Bold"
                               Cursor="Hand"/>
                </Expander.Header>

                <StackPanel>
                  <!--<Button VerticalAlignment="Center"
                            Command="{Binding RefreshStatistics}">
                        <StackPanel Orientation="Horizontal" Spacing="10">
                            <Image Source="/Assets/Icons/refresh-16x16.png"/>
                            <TextBlock Text="Refresh statistics"/>
                        </StackPanel>
                    </Button>
                    !-->

                  <WrapPanel Orientation="Horizontal">
                    <StackPanel Orientation="Horizontal">
                      <TextBlock Text="Bottles in stock:" VerticalAlignment="Center" FontWeight="Bold"/>
                      <TextBox Classes="TransparentReadOnly"
                                 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="TransparentReadOnly"
                               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="TransparentReadOnly"
                           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="TransparentReadOnly"
                           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="TransparentReadOnly"
                           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="TransparentReadOnly"
                           Text="{Binding Manager.PrintTimeSpan.TotalDays, StringFormat=\{0:N4\}}"/>
                      <TextBlock Text="days" VerticalAlignment="Center"/>
                    </StackPanel>
                  </WrapPanel>

                </StackPanel>

                </Expander>
            </Border>


        <Border Grid.Row="1" BorderBrush="Black" BorderThickness="1" Padding="5">
        <Expander IsExpanded="False">
          <Expander.Header>
            <TextBlock Text="Add new material"
                       FontWeight="Bold"
                       Cursor="Hand"/>
          </Expander.Header>

          <Grid
              RowDefinitions="Auto,10,Auto,10,Auto,10,Auto"
              ColumnDefinitions="Auto,10,150,5,Auto,20,Auto,10,Auto,5,Auto,20,Auto,10,150,5,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="17"
                       HorizontalAlignment="Stretch"
                       Watermark="A descriptive material name, eg: Epax Hard Grey"
                       Text="{Binding Material.Name}"/>

              <Button
                  Grid.Row="0" Grid.Column="20" Grid.ColumnSpan="3"
                  VerticalContentAlignment="Center"
                  HorizontalContentAlignment="Stretch"
                  VerticalAlignment="Stretch"
                  Command="{Binding AddNewMaterial}">
                  <StackPanel Orientation="Horizontal" Spacing="10">
                      <Image Source="/Assets/Icons/plus-16x16.png"/>
                      <TextBlock
                          VerticalAlignment="Center"
                          Text="Add new material"/>
                  </StackPanel>
              </Button>

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

              <NumericUpDown Grid.Row="2" Grid.Column="2"
                             Minimum="100"
                             Maximum="100000"
                             Increment="100"
                             Value="{Binding Material.BottleVolume}"
                             />
              <TextBlock Grid.Row="2" Grid.Column="4"
                         VerticalAlignment="Center"
                         Text="ml"/>

              <TextBlock Grid.Row="2" Grid.Column="6"
                         VerticalAlignment="Center"
                         ToolTip.Tip="Used to calculate weight and cost"
                         Text="Density:"/>

              <NumericUpDown Grid.Row="2" Grid.Column="8"
                             Minimum="0.1"
                             Maximum="10"
                             Increment="0.1"
                             Value="{Binding Material.Density}"/>
              <TextBlock Grid.Row="2" Grid.Column="10"
                         VerticalAlignment="Center"
                         Text="g/ml"/>

              <TextBlock Grid.Row="2" Grid.Column="12"
                         VerticalAlignment="Center"
                         ToolTip.Tip="One bottle unit cost"
                         Text="Cost:"/>

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

              <TextBlock Grid.Row="2" Grid.Column="18"
                         VerticalAlignment="Center"
                         ToolTip.Tip="Number of bottles in stock"
                         Text="Stock:"/>

              <NumericUpDown Grid.Row="2" Grid.Column="20"
                             Minimum="1"
                             Maximum="100000"
                             Increment="1"
                             Value="{Binding Material.BottlesInStock}"/>
              <TextBlock Grid.Row="2" Grid.Column="22"
                         VerticalAlignment="Center"
                         Text="units"/>
          </Grid>
        </Expander>
      </Border>

        <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">

          <Button VerticalAlignment="Center" 
                  IsEnabled="{Binding #MaterialsTable.SelectedItem, Converter={x:Static ObjectConverters.IsNotNull}}"
                  Command="{Binding RemoveSelectedMaterials}">
            <StackPanel Orientation="Horizontal" Spacing="10">
              <Image Source="/Assets/Icons/trash-16x16.png"/>
              <TextBlock Text="Remove selected materials"/>
            </StackPanel>
          </Button>

            <Button VerticalAlignment="Center" 
                    IsEnabled="{Binding Manager.Count}"
                    Command="{Binding ClearMaterials}">
                <StackPanel Orientation="Horizontal" Spacing="10">
                    <Image Source="/Assets/Icons/delete-16x16.png"/>
                    <TextBlock Text="{Binding Manager.Count, StringFormat=Clear {0} materials}"/>
                </StackPanel>
            </Button>

        </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>