使用c#更改特定的wpf数据网格行颜色

<DataGrid x:Name="dataGrid" AutoGenerateColumns="False">
    <DataGrid.Columns>
        <!-- 定义数据列 -->
        <DataGridTextColumn Header="姓名" Binding="{Binding Name}" />
        <DataGridTextColumn Header="年龄" Binding="{Binding Age}" />
        <!-- 其他数据列 -->
    </DataGrid.Columns>
</DataGrid>

public class Person
{
    public string Name { get; set; }
    public int Age { get; set; }
    // 其他属性
}

ObservableCollection<Person> people = new ObservableCollection<Person>();
dataGrid.ItemsSource = people;

// 修改特定行的颜色
Person person = people.FirstOrDefault(p => p.Name == "John");
if (person != null)
{
    // 修改行颜色
    DataGridRow row = (DataGridRow)dataGrid.ItemContainerGenerator.ContainerFromItem(person);
    if (row != null)
    {
        row.Background = Brushes.Red; // 设置行背景色为红色
    }
}