wpf datagrid dosent displaying column header and all..looks like nothing happend! please help me

    </StackPanel>
    <StackPanel Margin="28,218,33,29" Background="AliceBlue">
        <Grid Height="171" Margin="10,0,0,0">
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="37*"/>
                <ColumnDefinition Width="154*"/>
            </Grid.ColumnDefinitions>

            <DataGrid x:Name="dtgrid" x:Uid="dtgrid" SelectionMode="Single" HorizontalAlignment="Left" Margin="62,263,0,214" AutoGenerateColumns="False" Grid.ColumnSpan="2" ItemsSource="{Binding}" HeadersVisibility="Column" GridLinesVisibility="All">
                <DataGrid.Columns>
                    <DataGridTextColumn Binding="{Binding id}" Header="ID"  x:Name="idd" IsReadOnly="True" Width="Auto"></DataGridTextColumn>
                    <DataGridTextColumn Binding="{Binding name}" Header="NAME"  x:Name="named" IsReadOnly="True" Width="Auto"></DataGridTextColumn>
                    <DataGridTextColumn Binding="{Binding age}" Header="AGE"  x:Name="aged" IsReadOnly="True" Width="Auto"></DataGridTextColumn>
                    <DataGridTextColumn Binding="{Binding address}" Header="ADDRESS"  x:Name="addressd" IsReadOnly="True" Width="Auto"></DataGridTextColumn>
                    <DataGridTextColumn Binding="{Binding school}" Header="SCHOOL"  x:Name="schoold" IsReadOnly="True" Width="Auto"></DataGridTextColumn>
                    <DataGridTemplateColumn Header="EDIT">
                        <DataGridTemplateColumn.CellTemplate>
                            <DataTemplate>

                                <Button Content="edit" Click="click_button_edit"  CommandParameter="{Binding id}"></Button>
                            </DataTemplate>
                        </DataGridTemplateColumn.CellTemplate>   

                    </DataGridTemplateColumn>

                </DataGrid.Columns>

            </DataGrid>


        </Grid>

    </StackPanel>`enter code here`