WPF下 DataGrid加入序号列

先上代码：

 <DataGrid Name="DGV" AutoGenerateColumns="False"  Grid.Row="0" Grid.Column="0"   HorizontalGridLinesBrush="RoyalBlue" VerticalGridLinesBrush="Tomato" CanUserAddRows="False" LoadingRow="dataGrid_LoadingRow">
                        <DataGrid.ColumnHeaderStyle>
                            <Style TargetType="DataGridColumnHeader">
                                <Setter Property="HorizontalContentAlignment" Value="Center"></Setter>
                            </Style>
                        </DataGrid.ColumnHeaderStyle> 
                        <DataGrid.Columns>
                            <DataGridTemplateColumn  Width="55" Header="序号">
                                <DataGridTemplateColumn.CellTemplate>
                                    <DataTemplate>
                                        <TextBlock Text="{Binding RelativeSource={RelativeSource Mode=FindAncestor,AncestorType={x:Type DataGridRow}}, Path=Header}" HorizontalAlignment="Left" VerticalAlignment="Center" Margin="10,0,0,0"></TextBlock>
                                    </DataTemplate>
                                </DataGridTemplateColumn.CellTemplate>
                            </DataGridTemplateColumn>
                            <!--<DataGridTemplateColumn  IsReadOnly="True" MinWidth="60"  Width="80" Header="编号">
                                <DataGridTemplateColumn.CellTemplate>
                                    <DataTemplate>
                                        <TextBlock Text="{Binding Id}" TextTrimming="CharacterEllipsis"  HorizontalAlignment="Center"  FontSize="14"  Margin="3" TextWrapping="Wrap"></TextBlock>
                                    </DataTemplate>
                                </DataGridTemplateColumn.CellTemplate>
                            </DataGridTemplateColumn>-->
                            <DataGridTemplateColumn  IsReadOnly="True" MinWidth="120"    Width="*" Header="牌位类型">
                                <DataGridTemplateColumn.CellTemplate>
                                    <DataTemplate>
                                        <TextBlock Text="{Binding PaiweiType}" TextTrimming="CharacterEllipsis" FontSize="14" VerticalAlignment="Center"   Margin="3" TextWrapping="Wrap"></TextBlock>
                                    </DataTemplate>
                                </DataGridTemplateColumn.CellTemplate>
                            </DataGridTemplateColumn>


                            <DataGridTemplateColumn  IsReadOnly="True" MinWidth="80"  Width="*" Header="牌位种类">
                                <DataGridTemplateColumn.CellTemplate>
                                    <DataTemplate>
                                        <TextBlock Text="{Binding DaxiaoSuixi}" TextTrimming="CharacterEllipsis"   HorizontalAlignment="Center"  FontSize="14"  Margin="3" TextWrapping="Wrap"></TextBlock>
                                    </DataTemplate>
                                </DataGridTemplateColumn.CellTemplate>
                            </DataGridTemplateColumn>

                            <DataGridTemplateColumn  IsReadOnly="True" MinWidth="80"  Width="*" Header="金额">
                                <DataGridTemplateColumn.CellTemplate>
                                    <DataTemplate>
                                        <TextBlock Text="{Binding JinE}" TextTrimming="CharacterEllipsis"   HorizontalAlignment="Center"  FontSize="14"  Margin="3" TextWrapping="Wrap"></TextBlock>
                                    </DataTemplate>
                                </DataGridTemplateColumn.CellTemplate>
                            </DataGridTemplateColumn>

                        </DataGrid.Columns>
                    </DataGrid>

序号列：

  <DataGridTemplateColumn  Width="55" Header="序号">
                                <DataGridTemplateColumn.CellTemplate>
                                    <DataTemplate>
                                        <TextBlock Text="{Binding RelativeSource={RelativeSource Mode=FindAncestor,AncestorType={x:Type DataGridRow}}, Path=Header}" HorizontalAlignment="Left" VerticalAlignment="Center" Margin="10,0,0,0"></TextBlock>
                                    </DataTemplate>
                                </DataGridTemplateColumn.CellTemplate>
                            </DataGridTemplateColumn>

需要使用 创建row事件

LoadingRow="dataGrid_LoadingRow"

事件操作为：

 private void dataGrid_LoadingRow(object sender, DataGridRowEventArgs e)
        {
            e.Row.Header = e.Row.GetIndex() + 1;
        }

显示效果如下：

这个时候需要讲RowHeader去掉就可以了（未找到方法的话，可以使用宽度为0）。

RowHeaderWidth="0"

还有个方法就是直接写死：

<DataGrid>
    <DataGrid.RowHeaderStyle>
        <Style TargetType="DataGridRowHeader">
            <Setter Property="Content" Value="{Binding RelativeSource={RelativeSource Mode=Self}, Path=Row.Index}"/>
        </Style>
    </DataGrid.RowHeaderStyle>
    <!-- 其他DataGrid设置和内容 -->
</DataGrid>