我刚刚开始一个新的 WPF 应用程序。我有一个网格，想要动态创建行（例如按按钮），然后在该行内创建 TextView/ProgressBar。我已经搜索过如何以编程方式创建网格行。但在每个解决方案中，我都无法访问里面的内容，并且它变得毫无用处。<Grid x:Name="MainGrid">    <Grid.RowDefinitions>        <RowDefinition Height="Auto" />        <RowDefinition Height="*" />    </Grid.RowDefinitions>    <Button x:Name="AddLineButton" Content="Click to add a new line" Click="AddLineButton_Click"/>    <Grid x:Name="beGrid" Grid.Row="1"><!-- I need my new rows here -->    </Grid></Grid>int i = 0; //nb of rows    private void AddLineButton_Click(object sender, RoutedEventArgs e)    {        Create_line();        i++;    }    private void Create_line()    {        RowDefinition gridRow = new RowDefinition();        gridRow.Height = new GridLength(1, GridUnitType.Star);        beGrid.RowDefinitions.Add(gridRow);        StackPanel stack = new StackPanel();        stack.Orientation = Orientation.Horizontal;        TextBlock textBlock = new TextBlock();        textBlock.Text = "Question";        textBlock.Name = "Test" + i.ToString();        stack.Children.Add(textBlock);        beGrid.Children.Add(stack);        Grid.SetRow(stack, i);    }我无法访问以前创建的元素。回答后：    private void Create_line()    {        RowDefinition gridRow = new RowDefinition();        gridRow.Height = new GridLength(1, GridUnitType.Star);        beGrid.RowDefinitions.Add(gridRow);        StackPanel stack = new StackPanel();        stack.Orientation = Orientation.Horizontal;        TextBlock textBlock = new TextBlock();        textBlock.Text = "Question";        textBlock.Name = "Test" + i.ToString();        RegisterName(textBlock.Name, textBlock);        stack.Children.Add(textBlock);        beGrid.Children.Add(stack);        Grid.SetRow(stack, i);    }获取创建的 TextBlock ：var text = (TextBlock)FindName("Test"+i.ToString());