WPF中DataGrid绑定数据显示

前端Xaml部分：html

<DataGrid x:Name="groupInformationShow" HorizontalAlignment="Left" Height="341" VerticalAlignment="Top" Width="213" Margin="-3,-2,0,0" SelectionChanged="groupInformationShow_SelectionChanged">
    <DataGrid.AlternatingRowBackground>
        <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">                 
            <LinearGradientBrush.RelativeTransform>
                   <TransformGroup>
                         <ScaleTransform CenterY="0.5" CenterX="0.5"/>
                         <SkewTransform CenterY="0.5" CenterX="0.5"/>
                         <RotateTransform CenterY="0.5" CenterX="0.5" Angle="90"/>
                         <TranslateTransform/>
                    </TransformGroup>
            </LinearGradientBrush.RelativeTransform>
                <GradientStop Color="White" Offset="0"/>
                <GradientStop Color="#FF5BB0F7" Offset="1"/>
        </LinearGradientBrush>
    </DataGrid.AlternatingRowBackground>

    <DataGrid.Columns>
                            <!-- <DataGridTextColumn Header="序号" Width ="45" FontSize="12" Binding="{Binding show_index}"  ElementStyle="{StaticResource contentCenterStyle}" /> -->
        <DataGridTextColumn Header="组号" Width ="55" FontSize="14" Binding="{Binding GroupNumber}" />
        <DataGridTextColumn Header="时间" Width ="150" FontSize="14" Binding="{Binding Time}"/>

    </DataGrid.Columns>
</DataGrid>

后台部分：前端

public struct GrourpValue
{
    public int GroupNumber { get; set; }
    public string Time { get; set; }
}

public void dataBinding()
{
            List<object> aList = new List<object>();
            GrourpValue ps1 = new GrourpValue();//单行数据
            ps1.GroupNumber = 111;
            ps1.Time="20180907";
            aList.Add(ps1);  
            ps1.GroupNumber = 131;
            ps1.Time="20180906";
            aList.Add(ps1);
            groupInformationShow.ItemsSource = aList;
            groupInformationShow.AutoGenerateColumns = false;//禁止自动添加列
            groupInformationShow.CanUserAddRows = false;//禁止自动添加行
}