silverlight中DataGrid数据高亮显示

效果如图所示，

<UserControl xmlns:controls="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls"  xmlns:data="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Data"  x:Class="SilverlightGridData.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 

             xmlns:thislocal="clr-namespace:SilverlightGridData.Util"
             mc:Ignorable="d" d:DesignWidth="" d:DesignHeight="">
    <UserControl.Resources>
        <thislocal:ColorConvert x:Key="ConverColor"></thislocal:ColorConvert>
    </UserControl.Resources>
    <Grid x:Name="LayoutRoot"  >
        <controls:TabControl  Height="" Width="">
            <controls:TabItem Name="选项一" Header="选项卡">
                <StackPanel>

                    <data:DataGrid FrozenColumnCount="" HorizontalAlignment="Center" VerticalContentAlignment="Center" Height="" Width="" Name="Datagrid1" Margin="0,10,0,0" AutoGenerateColumns="False">
                        <data:DataGrid.Columns  >
                            <data:DataGridTemplateColumn Header="姓名"   >
                                <data:DataGridTemplateColumn.CellTemplate >
                                    <DataTemplate >
                                        <TextBlock Text="{Binding Name}"    Width =""   Foreground="{Binding Path=Name,Converter={StaticResource ConverColor}}">
                                        </TextBlock>
                                    </DataTemplate>
                                </data:DataGridTemplateColumn.CellTemplate>
                            </data:DataGridTemplateColumn>
                            <data:DataGridTemplateColumn Header="年龄"   >
                                <data:DataGridTemplateColumn.CellTemplate >
                                    <DataTemplate >
                                        <TextBlock Text="{Binding Age}"   Canvas.Top="" Canvas.Left="" Foreground="{Binding Path=Age,Converter={StaticResource ConverColor}}">
                                  <Run Foreground="Red">as</Run>
                                        </TextBlock>
                                    </DataTemplate>
                                </data:DataGridTemplateColumn.CellTemplate>
                            </data:DataGridTemplateColumn>
                            <data:DataGridTemplateColumn Header="学校"   >
                                <data:DataGridTemplateColumn.CellTemplate >
                                    <DataTemplate >
                                        <TextBlock Text="{Binding School}"   Canvas.Top="" Canvas.Left="" Foreground="{Binding Path=School,Converter={StaticResource ConverColor}}">
                                  <Run Foreground="Red">as</Run>
                                        </TextBlock>
                                    </DataTemplate>
                                </data:DataGridTemplateColumn.CellTemplate>
                            </data:DataGridTemplateColumn>
                            <data:DataGridTemplateColumn Header="年级"   >
                                <data:DataGridTemplateColumn.CellTemplate >
                                    <DataTemplate >
                                        <TextBlock Text="{Binding Grade}"   Canvas.Top="" Canvas.Left="" Foreground="{Binding Path=Grade,Converter={StaticResource ConverColor}}">
                                  <Run Foreground="Red">as</Run>
                                        </TextBlock>
                                    </DataTemplate>
                                </data:DataGridTemplateColumn.CellTemplate>
                            </data:DataGridTemplateColumn>
                            <data:DataGridTemplateColumn Header="班级"   >
                                <data:DataGridTemplateColumn.CellTemplate >
                                    <DataTemplate >
                                        <TextBlock Text="{Binding Class}"   Canvas.Top="" Canvas.Left="" Foreground="{Binding Path=Class,Converter={StaticResource ConverColor}}">
                                  <Run Foreground="Red">as</Run>
                                        </TextBlock>
                                    </DataTemplate>
                                </data:DataGridTemplateColumn.CellTemplate>
                            </data:DataGridTemplateColumn>
                        </data:DataGrid.Columns>
                    </data:DataGrid>
                </StackPanel>

            </controls:TabItem>

        </controls:TabControl>

    </Grid>
</UserControl>

 public MainPage()
        {
            InitializeComponent();

            this.Loaded += new RoutedEventHandler(MainPage_Loaded);
        }

        void MainPage_Loaded(object sender, RoutedEventArgs e)
        {
            list = new List<Student>();
            list.Add(new Student { Name = "张三", Age = , School = "北京第一小学", Grade = "一年级", Class = "A2" });
            list.Add(new Student { Name = "赵龙", Age = , School = "北京第二小学", Grade = "二年级", Class = "A1" });
            list.Add(new Student { Name = "李锐", Age = , School = "北京第三小学", Grade = "六年级", Class = "A2" });
            list.Add(new Student { Name = "宋敏", Age = , School = "北京第四小学", Grade = "三年级", Class = "A3" });
            list.Add(new Student { Name = "吴晓", Age = , School = "北京第五小学", Grade = "四年级", Class = "A4" });
            list.Add(new Student { Name = "张刚", Age = , School = "北京第六小学", Grade = "五年级", Class = "A5" });
            list.Add(new Student { Name = "李刚", Age = , School = "北京第七小学", Grade = "六年级", Class = "A6" });

            this.Datagrid1.ItemsSource = list;

        }
        public class Student
        {

            public string Name { get; set; }
            public int Age { get; set; }
            public string School { get; set; }
            public string Grade { get; set; }
            public string Class { get; set; }

        }

类文件中实现IValueConverter接口

   public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            // 根据文字显示颜色
            if (value.Equals("张三"))
            {
                return "Red";
            }
            if (value.Equals("北京第五小学"))
            {
                return "Red";
            }
            if (value.Equals("A5"))
            {
                return "Red";
            }
            else
            {
                return "Black";
            }
        }

        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            return null;
        }