first edit

XLIMS.SP/Windows/BooksWindow.xaml

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+<Window x:Class="XLIMS.SP.Windows.BooksWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        Title="Книги учета регистрационных номеров"
+        WindowStartupLocation="CenterScreen"
+        Width="400" Height="600">
+    <Grid>
+        <DataGrid AutoGenerateColumns="False"
+                  ItemsSource="{Binding AllBooks}"
+                  SelectedItem="{Binding CurrentBook,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}"
+                  >
+            <DataGrid.ContextMenu>
+                <ContextMenu>
+                    <MenuItem Header="Добавить"
+                              Command="{Binding AddCommand}"/>
+                    <MenuItem Header="Изменить"
+                                Command="{Binding EditCommand}"/>
+                    <MenuItem Header="Удалить"
+                                Command="{Binding DelCommand}"/>
+                </ContextMenu>
+            </DataGrid.ContextMenu>
+            <DataGrid.Columns>
+                <DataGridTemplateColumn Header="Номер книги" Width="*">
+                    <DataGridTemplateColumn.CellTemplate>
+                        <DataTemplate>
+                            <TextBlock Text="{Binding Number}"/>
+                        </DataTemplate>
+                    </DataGridTemplateColumn.CellTemplate>
+                </DataGridTemplateColumn>
+            </DataGrid.Columns>
+        </DataGrid>
+    </Grid>
+</Window>