WPF。如何设置文本块字段附近的复选框？

<Grid>
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width="Auto" />
        <ColumnDefinition Width="Auto" />
    </Grid.ColumnDefinitions>
    <TextBlock Text="文本块" />
    <CheckBox Grid.Column="1" Content="复选框" />
</Grid>

// 通过名称访问文本块和复选框
TextBlock textBlock = FindName("textBlock") as TextBlock;
CheckBox checkBox = FindName("checkBox") as CheckBox;

// 通过父子关系访问文本块和复选框
Grid grid = FindName("grid") as Grid;
TextBlock textBlock = grid.Children.OfType<TextBlock>().FirstOrDefault();
CheckBox checkBox = grid.Children.OfType<CheckBox>().FirstOrDefault();

// 设置文本块和复选框的属性
textBlock.Text = "新的文本";
checkBox.IsChecked = true;