I want to do is from the select button can make visible or collapsed the check boxes that are in the ListView lel and then select to be able to delete the record from the table.
ListView x:Name="ListPet"
SelectionMode="single"
ScrollViewer.VerticalScrollBarVisibility="Auto"
ScrollViewer.IsVerticalRailEnabled="True"
ScrollViewer.VerticalScrollMode="Enabled"
Margin="20">
<ListView.HeaderTemplate>
<DataTemplate >
<Grid Padding="12" >
<Grid.ColumnDefinitions>
<ColumnDefinition Width="60"/>
<ColumnDefinition Width="100"/>
<ColumnDefinition Width="190"/>
<ColumnDefinition Width="100"/>
<ColumnDefinition Width="100"/>
<ColumnDefinition Width="90"/>
<ColumnDefinition Width="90"/>
<ColumnDefinition Width="90"/>
<ColumnDefinition Width="110"/>
</Grid.ColumnDefinitions>
<TextBlock x:Uid="Foto" Grid.Column="1" VerticalAlignment="center" Foreground="Gray" FontWeight="SemiBold" FontSize="{StaticResource SmallFontSize}"/>
<TextBlock x:Uid="Tipo_mascota" Grid.Column="2" VerticalAlignment="Center" Foreground="Gray" FontWeight="SemiBold" FontSize="{StaticResource SmallFontSize}"/>
<TextBlock x:Uid="Fecha_Nac" x:Name="txtFecha" Grid.Column="3" VerticalAlignment="Center" Foreground="Gray" FontWeight="SemiBold" FontSize="{StaticResource SmallFontSize}"/>
<TextBlock x:Uid="Nombre" VerticalAlignment="Center" Grid.Column="4" Foreground="Gray" FontWeight="SemiBold" FontSize="{StaticResource SmallFontSize}"/>
<TextBlock x:Uid="Raza" VerticalAlignment="Center" Grid.Column="5" Foreground="Gray" FontWeight="SemiBold" FontSize="{StaticResource SmallFontSize}"/>
<TextBlock x:Uid="Color" VerticalAlignment="Center" Grid.Column="6" Foreground="Gray" FontWeight="SemiBold" FontSize="{StaticResource SmallFontSize}"/>
<TextBlock x:Uid="Chip" VerticalAlignment="Center" Grid.Column="7" Foreground="Gray" FontWeight="SemiBold" FontSize="{StaticResource SmallFontSize}"/>
<TextBlock x:Uid="Genero" VerticalAlignment="Center" Grid.Column="8" Foreground="Gray" FontWeight="SemiBold" FontSize="{StaticResource SmallFontSize}"/>
<TextBlock x:Uid="Esterilizado" VerticalAlignment="Center" Grid.Column="9" Foreground="Gray" FontWeight="SemiBold" FontSize="{StaticResource SmallFontSize}"/>
</Grid>
</DataTemplate>
</ListView.HeaderTemplate>
<ListView.ItemTemplate>
<DataTemplate x:DataType="local:PetTable">
<Grid Height="48">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="32"/>
<ColumnDefinition Width="32"/>
<ColumnDefinition Width="10"/>
<ColumnDefinition Width="100"/>
<ColumnDefinition Width="200"/>
<ColumnDefinition Width="160"/>
<ColumnDefinition Width="160"/>
<ColumnDefinition Width="90"/>
<ColumnDefinition Width="90"/>
<ColumnDefinition Width="90"/>
<ColumnDefinition Width="110"/>
</Grid.ColumnDefinitions>
<CheckBox x:Name="Ch1" Grid.Column="0" Checked="CheckBox1_Checked" Unchecked="CheckBox1_UnChecked" />
<Ellipse Height="32" Width="32" Grid.Column="1" VerticalAlignment="center">
<Ellipse.Fill>
<ImageBrush />
</Ellipse.Fill>
</Ellipse>
<TextBlock Text="{x:Bind Type}" Grid.Column="2" VerticalAlignment="center" FontSize="{StaticResource SmallFontSize}"/>
<TextBlock Text="{x:Bind DuoDate.ToShortDateString()}" Grid.Column="3" VerticalAlignment="center" FontSize="{StaticResource SmallFontSize}"/>
<TextBlock Text="{x:Bind PetName }" Grid.Column="4" VerticalAlignment="center" FontSize="{StaticResource SmallFontSize}"/>
<TextBlock Text="{x:Bind PetRace}" Grid.Column="5" VerticalAlignment="center" FontSize="{StaticResource SmallFontSize}"/>
<TextBlock Text="{x:Bind PetColor}" Grid.Column="6" VerticalAlignment="center" FontSize="{StaticResource SmallFontSize}"/>
<TextBlock Text="{x:Bind PetChip}" Grid.Column="7" VerticalAlignment="center" FontSize="{StaticResource SmallFontSize}"/>
<TextBlock Text="{x:Bind PetGender}" Grid.Column="8" VerticalAlignment="center" FontSize="{StaticResource SmallFontSize}"/>
<TextBlock Text="{x:Bind PetSterile}" Grid.Column="9" VerticalAlignment="center" FontSize="{StaticResource SmallFontSize}"/>
</Grid>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>